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Eldia Anggidenia
Potensi Makroalga Alami Sargassum polycystum dan Makroalga Budidaya Eucheuma cottonii dalam Menyerap dan Menyimpan Karbon serta Nutrien di Pulau Panjang, Teluk Banten = The Potency of Wild Macroalgae Sargassum polycystum and Cultivation Macroalgae Eucheuma cottonii to Absorb and Store Carbon also Nutrient in Panjang Island, Banten Bay
"[Penelitian mengenai potensi makroalga alami Sargassum polycystum
dan makroalga budidaya Eucheuma cottonii dalam menyerap dan menyimpan
karbon serta nutrien di Pulau Panjang, Teluk Banten telah dilakukan pada bulan
Oktober hingga November 2014. Penelitian bertujuan untuk mengetahui laju
penyerapan karbon, kandungan nutrien dan produktivitas primer dari makroalga S.
polycystum dan E. cottonii. Lokasi penelitian terletak di bagian hamparan gosong
karang dan berlumpur dengan kedalaman 0,5-5 m. Pengamatan pertumbuhan dan
laju penyerapan karbon menggunakan metode penandaan thallus pada 30 sampel
makroalga setiap hari selama 7 hari. Sampel makroalga selanjutnya dianalisis
kandungan nutriennya. Hasil penelitian didapatkan estimasi laju penyerapan
karbon S. polycystum dan E. cottonii adalah 0,0081 gC/hari dan 0,0083 gC/hari.
Kandungan karbon, nitrogen dan fosfat di S. polycystum adalah sebanyak 6,84%,
1,72% dan 0,009% sedangkan kandungan karbon, nitrogen dan fosfat di E.
cottonii adalah 5,99%, 0,67% dan 0,006%. Berdasarkan analisis statistik dengan
uji t, terdapat perbedaan yang signifikan pada laju pertumbuhan, kandungan
nitrogen dan fosfat S. polycystum dengan E. cottonii. Sedangkan untuk kandungan
karbon tidak terdapat perbedaan yang signifikan antara S. polycystum dengan E.
cottonii. Selanjutnya, uji korelasi didapatkan bahwa adanya korelasi antara laju
pertumbuhan S. polycystum dan E. cottonii dengan kandungan nitrogen masingmasing
sedangkan antara laju pertumbuhan dengan kandungan karbon dan fosfat
tidak terdapat korelasi. Produktivitas primer diukur dengan metode botol terang
dan botol gelap yang dimodifikasi. Pengukuran produktivitas primer dilakukan
pada kedalaman 0,5 m untuk S. polycystum dan 0,1 m untuk E. cottonii.
Kandungan oksigen terlarut diukur dengan DO meter. Hasil penelitian didapatkan
rata-rata produktivitas primer S. polycystum sebesar 10,259 ± 3,385 mgC/g/hari
dan E. cottonii sebesar 7,757 ± 4,398 mgC/g/hari.;The research about the potency of wild macroalgae Sargassum polycystum
and cultivation macroalgae Eucheuma cottonii to absorb and store carbon also
nutrient in Panjang Island, Banten Bay was held on October until November 2014.
The research was aimed to estimate carbon sequestration, nutrient content and
primary productivity from macroalgae S. polycystum and E. cottonii. Location of
the research in the stretch of reef and muddy with a depth of 0,5-5 m. The
observation of growth rate and carbon sequestration used thallus marking method
in 30 macroalgae shoots everyday for 7 days. Macroalgae was analyzed its
nutrient content. The results showed that estimation carbon sequestration by S.
polycystum and E. cottonii were 0,0081 gC/day and 0,0083 gC/day. The content
of carbon, nitrogent and phosphor for Macroalgae S. polycystum were 6,84%,
1,72% and 0,009% respectively while the content of carbon, nitrogent and
phosphor for Macroalgae E. cottonii were 5,99%, 0,67% and 0,006% respectively.
Based on statistical analysis by t test, there was found significant difference on the
growth rate, nitrogent and phosphor content of S. polycystum with E. cottonii.
While for the carbon content, there was no significant difference between S.
polycystum with E. cottonii. Furthermore, correlation test showed that there was a
correlation between the growth rate of S. polycystum and E. cottonii with
nitrogent content respectively while between the growth rate with carbon and
phosphor content, there was no correlation. Primary productivity were measured
by the light and dark bottle method with modification. Measurement of primary
productivity was held at a depth of 0,5 m from the surface for S. polycystum and
0,1 m from the surface for E. cottonii. Dissolved oxygen was measured by DO
meter. The result showed that mean of primary productivity for S. polycystum was
10,259 ± 3,385 mgC/g/day and E. cottonii was 7,757 ± 4,398 mgC/g/day;The research about the potency of wild macroalgae Sargassum polycystum
and cultivation macroalgae Eucheuma cottonii to absorb and store carbon also
nutrient in Panjang Island, Banten Bay was held on October until November 2014.
The research was aimed to estimate carbon sequestration, nutrient content and
primary productivity from macroalgae S. polycystum and E. cottonii. Location of
the research in the stretch of reef and muddy with a depth of 0,5-5 m. The
observation of growth rate and carbon sequestration used thallus marking method
in 30 macroalgae shoots everyday for 7 days. Macroalgae was analyzed its
nutrient content. The results showed that estimation carbon sequestration by S.
polycystum and E. cottonii were 0,0081 gC/day and 0,0083 gC/day. The content
of carbon, nitrogent and phosphor for Macroalgae S. polycystum were 6,84%,
1,72% and 0,009% respectively while the content of carbon, nitrogent and
phosphor for Macroalgae E. cottonii were 5,99%, 0,67% and 0,006% respectively.
Based on statistical analysis by t test, there was found significant difference on the
growth rate, nitrogent and phosphor content of S. polycystum with E. cottonii.
While for the carbon content, there was no significant difference between S.
polycystum with E. cottonii. Furthermore, correlation test showed that there was a
correlation between the growth rate of S. polycystum and E. cottonii with
nitrogent content respectively while between the growth rate with carbon and
phosphor content, there was no correlation. Primary productivity were measured
by the light and dark bottle method with modification. Measurement of primary
productivity was held at a depth of 0,5 m from the surface for S. polycystum and
0,1 m from the surface for E. cottonii. Dissolved oxygen was measured by DO
meter. The result showed that mean of primary productivity for S. polycystum was
10,259 ± 3,385 mgC/g/day and E. cottonii was 7,757 ± 4,398 mgC/g/day;The research about the potency of wild macroalgae Sargassum polycystum
and cultivation macroalgae Eucheuma cottonii to absorb and store carbon also
nutrient in Panjang Island, Banten Bay was held on October until November 2014.
The research was aimed to estimate carbon sequestration, nutrient content and
primary productivity from macroalgae S. polycystum and E. cottonii. Location of
the research in the stretch of reef and muddy with a depth of 0,5-5 m. The
observation of growth rate and carbon sequestration used thallus marking method
in 30 macroalgae shoots everyday for 7 days. Macroalgae was analyzed its
nutrient content. The results showed that estimation carbon sequestration by S.
polycystum and E. cottonii were 0,0081 gC/day and 0,0083 gC/day. The content
of carbon, nitrogent and phosphor for Macroalgae S. polycystum were 6,84%,
1,72% and 0,009% respectively while the content of carbon, nitrogent and
phosphor for Macroalgae E. cottonii were 5,99%, 0,67% and 0,006% respectively.
Based on statistical analysis by t test, there was found significant difference on the
growth rate, nitrogent and phosphor content of S. polycystum with E. cottonii.
While for the carbon content, there was no significant difference between S.
polycystum with E. cottonii. Furthermore, correlation test showed that there was a
correlation between the growth rate of S. polycystum and E. cottonii with
nitrogent content respectively while between the growth rate with carbon and
phosphor content, there was no correlation. Primary productivity were measured
by the light and dark bottle method with modification. Measurement of primary
productivity was held at a depth of 0,5 m from the surface for S. polycystum and
0,1 m from the surface for E. cottonii. Dissolved oxygen was measured by DO
meter. The result showed that mean of primary productivity for S. polycystum was
10,259 ± 3,385 mgC/g/day and E. cottonii was 7,757 ± 4,398 mgC/g/day;The research about the potency of wild macroalgae Sargassum polycystum
and cultivation macroalgae Eucheuma cottonii to absorb and store carbon also
nutrient in Panjang Island, Banten Bay was held on October until November 2014.
The research was aimed to estimate carbon sequestration, nutrient content and
primary productivity from macroalgae S. polycystum and E. cottonii. Location of
the research in the stretch of reef and muddy with a depth of 0,5-5 m. The
observation of growth rate and carbon sequestration used thallus marking method
in 30 macroalgae shoots everyday for 7 days. Macroalgae was analyzed its
nutrient content. The results showed that estimation carbon sequestration by S.
polycystum and E. cottonii were 0,0081 gC/day and 0,0083 gC/day. The content
of carbon, nitrogent and phosphor for Macroalgae S. polycystum were 6,84%,
1,72% and 0,009% respectively while the content of carbon, nitrogent and
phosphor for Macroalgae E. cottonii were 5,99%, 0,67% and 0,006% respectively.
Based on statistical analysis by t test, there was found significant difference on the
growth rate, nitrogent and phosphor content of S. polycystum with E. cottonii.
While for the carbon content, there was no significant difference between S.
polycystum with E. cottonii. Furthermore, correlation test showed that there was a
correlation between the growth rate of S. polycystum and E. cottonii with
nitrogent content respectively while between the growth rate with carbon and
phosphor content, there was no correlation. Primary productivity were measured
by the light and dark bottle method with modification. Measurement of primary
productivity was held at a depth of 0,5 m from the surface for S. polycystum and
0,1 m from the surface for E. cottonii. Dissolved oxygen was measured by DO
meter. The result showed that mean of primary productivity for S. polycystum was
10,259 ± 3,385 mgC/g/day and E. cottonii was 7,757 ± 4,398 mgC/g/day;The research about the potency of wild macroalgae Sargassum polycystum
and cultivation macroalgae Eucheuma cottonii to absorb and store carbon also
nutrient in Panjang Island, Banten Bay was held on October until November 2014.
The research was aimed to estimate carbon sequestration, nutrient content and
primary productivity from macroalgae S. polycystum and E. cottonii. Location of
the research in the stretch of reef and muddy with a depth of 0,5-5 m. The
observation of growth rate and carbon sequestration used thallus marking method
in 30 macroalgae shoots everyday for 7 days. Macroalgae was analyzed its
nutrient content. The results showed that estimation carbon sequestration by S.
polycystum and E. cottonii were 0,0081 gC/day and 0,0083 gC/day. The content
of carbon, nitrogent and phosphor for Macroalgae S. polycystum were 6,84%,
1,72% and 0,009% respectively while the content of carbon, nitrogent and
phosphor for Macroalgae E. cottonii were 5,99%, 0,67% and 0,006% respectively.
Based on statistical analysis by t test, there was found significant difference on the
growth rate, nitrogent and phosphor content of S. polycystum with E. cottonii.
While for the carbon content, there was no significant difference between S.
polycystum with E. cottonii. Furthermore, correlation test showed that there was a
correlation between the growth rate of S. polycystum and E. cottonii with
nitrogent content respectively while between the growth rate with carbon and
phosphor content, there was no correlation. Primary productivity were measured
by the light and dark bottle method with modification. Measurement of primary
productivity was held at a depth of 0,5 m from the surface for S. polycystum and
0,1 m from the surface for E. cottonii. Dissolved oxygen was measured by DO
meter. The result showed that mean of primary productivity for S. polycystum was
10,259 ± 3,385 mgC/g/day and E. cottonii was 7,757 ± 4,398 mgC/g/day, The research about the potency of wild macroalgae Sargassum polycystum
and cultivation macroalgae Eucheuma cottonii to absorb and store carbon also
nutrient in Panjang Island, Banten Bay was held on October until November 2014.
The research was aimed to estimate carbon sequestration, nutrient content and
primary productivity from macroalgae S. polycystum and E. cottonii. Location of
the research in the stretch of reef and muddy with a depth of 0,5-5 m. The
observation of growth rate and carbon sequestration used thallus marking method
in 30 macroalgae shoots everyday for 7 days. Macroalgae was analyzed its
nutrient content. The results showed that estimation carbon sequestration by S.
polycystum and E. cottonii were 0,0081 gC/day and 0,0083 gC/day. The content
of carbon, nitrogent and phosphor for Macroalgae S. polycystum were 6,84%,
1,72% and 0,009% respectively while the content of carbon, nitrogent and
phosphor for Macroalgae E. cottonii were 5,99%, 0,67% and 0,006% respectively.
Based on statistical analysis by t test, there was found significant difference on the
growth rate, nitrogent and phosphor content of S. polycystum with E. cottonii.
While for the carbon content, there was no significant difference between S.
polycystum with E. cottonii. Furthermore, correlation test showed that there was a
correlation between the growth rate of S. polycystum and E. cottonii with
nitrogent content respectively while between the growth rate with carbon and
phosphor content, there was no correlation. Primary productivity were measured
by the light and dark bottle method with modification. Measurement of primary
productivity was held at a depth of 0,5 m from the surface for S. polycystum and
0,1 m from the surface for E. cottonii. Dissolved oxygen was measured by DO
meter. The result showed that mean of primary productivity for S. polycystum was
10,259 ± 3,385 mgC/g/day and E. cottonii was 7,757 ± 4,398 mgC/g/day]"
2015
T43623
UI - Tesis Membership  Universitas Indonesia Library
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LIMNOTEK : perairan darat tropis di Indonesia
"Situ merupakan danau kecil serta memiliki karakteristik fisik perairan yang berfluktuasi, tergantung dari musim. Kondisi tersebut dapat mempengaruhi suksesi dan pertumbuhan fitoplankton. Komposisi dan kelimpahan fitoplankton dapat berubah secara musiman (temporal) terkait fluktuasi karakteristik fisik tersebut. Penelitian ini ditujukan untuk mengetahui perubahan temporal komposisi dan kelimpahan fitoplankton di Situ Lembang. Pengamatan dilakukan pada bulan Mei sampai dengan bulan Oktober 2007. Parameter kualitas air diukur secara langsung menggunakan Horiba-U 10, sedangkan parameter nutrien dianalisis menggunakan standard method. Fitoplankton diamati secara kuantitatif menggunakan metode Lackey Drop Microtransect termodifikasi. Pengelompokkan fitoplankton dengan faktor lingkungan menggunakan analisis komponen utama. Hasil penelitian menunjukkan adanya perubahan komposisi fitoplankton secara temporal. Bulan Mei (musim peralihan hujan ke kemarau) menunjukkan presentase komposisi antara Chlorophyta dan Chrysophyta yang seimbang, diindikasikan oleh nilai indek keanekaragaman paling tinggi. Komposisi Chlorophyta mendominasi pada bulan Juni namnu terus menurun memasuki bulan Juli, Agustus, September (musim kemarau), sebaliknya komposisi Chrysophyta paling rendah pada bulan Juni dan mulai meningkat pada musim kemarau dan awal musim hujan (Oktober), sementara Cyanophyta sedikit meningkat pada bulan Agustus. Perubahan temporal juga ditunjukkan oleh perubahan kadar klorofil. Kelimpahan Chlorophyta yang tinggi dijumpai pada kondisi pH yang lebih tinggi sedangkan Chrysophyta pada kondisi, suhu, konduktivitas, TN dan amonia yang lebih tinggi"
Jakarta: Pusat Penelitian Limnologi Lembaga Ilmu Pengetahuan Indonesia,
551 LIMNO
Majalah, Jurnal, Buletin  Universitas Indonesia Library
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Veronica Wijaya
Perubahan kadar malondialdehida plasma terkait asupan nutrien dan tipe kerja : penelitian pendahuluan pada perawat dan pegawai administrasi di RSUD Tarakan, Jakarta = Changes of plasma malondialdehyde concentration according to nutrient intake and work type : a pilot study on nurses and administrative workers in Tarakan district General Hospital, Jakarta
"ABSTRAK
Penelitian ini bertujuan untuk mengetahui perbedaan perubahan kadar
malondialdehida plasma pada perawat dan pegawai administrasi yang telah
bekerja selama 7 jam berturut-turut dan mendapatkan modifikasi makanan berupa
makanan dengan kandungan makronutrien sebesar 65% dari kebutuhan sehari dan
asupan mikronutrien antioksidan (β-karoten, vitamin C, vitamin E, Cu, Zn, dan
Se) sebesar 65% dari AKG/DRI. Penelitian ini merupakan suatu penelitian
potong lintang berulang dengan rentang jangka waktu pemeriksaan pertama
dengan pemeriksaan kedua adalah satu shift kerja (7 jam). Pengambilan data
dilakukan di RSUD Tarakan, Jakarta pada bulan Januari sampai Februari 2013.
Sebanyak 39 orang subyek bersedia ikut serta dalam penelitian ini dan sebanyak
31 orang subyek (15 perawat dan 16 pegawai administrasi) memenuhi kriteria
penelitian. Data yang dikumpulkan meliputi karakteristik demografi, data
antropometri (berat badan dan tinggi badan), pola asupan makronutrien dan
mikronutrien antioksidan, serta pemeriksaan kadar malondialdehida plasma.
Rerata persentase asupan lemak terhadap energi pada kelompok perawat (37 +
5,79 %) dan kelompok pegawai administrasi (36,57 + 6,72 %) melebihi asupan
lemak total yang dianjurkan. Sebesar 42,86% subyek pada kelompok perawat dan
pegawai administrasi memiliki asupan β-karoten yang kurang berdasarkan DRI,
14,29% subyek pada kelompok perawat dan 35,71% subyek pada kelompok
pegawai administrasi memiliki asupan vitamin C yang kurang berdasarkan AKG.
Sebagian besar subyek pada kedua kelompok memiliki asupan vitamin E, Cu, Zn
dan Se yang kurang dibandingkan AKG/DRI. Terdapat peningkatan bermakna
kadar MDA plasma kelompok perawat setelah bekerja dan mendapatkan asupan
makanan (p = 0,001) tetapi tidak pada kelompok pegawai administrasi (p =
0,063). Tidak terdapat perbedaan bermakna antara rerata perubahan kadar MDA
plasma sebelum dan setelah bekerja serta mendapatkan asupan makanan pada
kelompok perawat dan pegawai administrasi. Dari penelitian ini dapat
disimpulkan bahwa terdapat peningkatan bermakna kadar MDA plasma setelah
bekerja dan mendapatkan asupan makanan pada kelompok perawat yang
menunjukkan peningkatan kerusakan oksidatif setelah bekerja.
ABSTRACT
The aim of study is to find out the differences of plasma malondialdehyde
concentration in nurses and administrative workers after 7 hours of work and had
meal modifications which contain 65% of total daily needs macronutrient and
65% of AKG/DRI antioxidant (β-carotene, vitamin C, vitamin E, Cu, Zn, and Se).
This is a repeated cross-sectional study. The range from first examination to
second examination is one work shift (7 hours). The data were obtained in
Tarakan District General Hospital, Jakarta from January to February 2013. Out
of 39 people whom signed the consents, 31 people matched the study criteria. The
data taken in this study include demographic characteristic, anthropometric
(weight and height), assessment of macronutrient and antioxidant micronutrient
intake, and plasma malondialdehyde. The mean of percentage fat intake per
energy in nurses group were 37 + 5,79 % and in administrative workers group
were 36,57 + 6,72 %, both of them exceed the recommendation of fat intake. As
much as 42,86% subjects in both group had a low β-carotene intake according to
DRI, 14,29% subjects in nurses group and 35,71% in administrative workers
group had a low vitamin C intake according to AKG. Most subjects in both group
had a low vitamin C, Cu, Zn, and Se intake according to AKG/DRI. There was a
significant increase of plasma MDA concentration after work and meal
modification within nurses group (p = 0,001), but not on administrative workers?
(p = 0,063). There were no significant increases of plasma MDA concentration
after work and meal modification between nurses group and administrative
workers group. The conclusion of this study is there was a significant increase of
plasma MDA concentration after work and had meal modification within nurses
group, which implicates an increase of oxidative damage after work."
2013
T-Pdf
UI - Tesis Membership  Universitas Indonesia Library
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Shafira Trisanti
Evaluasi Pendayagunaan Nutrien Digestat Menggunakan Lahan Basah Buatan Aliran Horizontal Bawah Permukaan dan Lahan Basah Buatan Terapung = Evaluation of Digestate Nutrient Uptake Using Horizontal Sub-Surface Flow and Floating Constructed Wetland
"Pendayagunaan nutrien tinggi pada digestat AD dapat dilakukan dengan lahan basah buatan (CW), khususnya tipe aliran horizontal bawah permukaan (HSSF) dan tipe terapung (FCW). Penelitian ini akan membandingkan antara kemampuan kedua tipe tersebut terhadap nilai penyisihan yang dihasilkannya serta konsentrasi nutrien berupa TN dan TP pada tiap jenis makrofit yang ditanam pada bed tersebut yaitu Thypa latifolia, Canna indica, dan Iris pseodacorus. Pemberian influen berupa digestat menghasilkan pertumbuhan yang baik secara visual terhadap ketiga makrofit yang digunakan, hasil ini sejalan dengan hasil pengujian laboratorium yang menunjukkan bahwa mekanisme yang paling berpengaruh dalam penyisihan dan pendayagunaan nutrien pada HSSF dan FCW adalah plant uptake dan nitrifikasi. Selain itu, efluen yang dihasilkan juga menunjukkan nilai yang sesuai dengan baku mutu lingkungan yang dipersyaratkan dan dapat digunakan kembali untuk perairan irigasi. Tipe CW dengan makrofit yang berbeda menunjukkan nilai penyisihan dan pendayagunaan yang berbeda pula, hal ini dikarenakan bentuk akar, batang, dan daun sangat berpengaruh pada mekanisme plant uptake yang terjadi pada kedua sistem. Diantara kombinasi tipe CW dan makrofit yang digunakan, tipe HSSF dengan makrofit CI adalah yang paling unggul dalam mendayagunakan dan penyisihan nutrien serta parameter kualitas air lainnya yaitu dengan pertumbuhan tinggi mencapai 42% pada waktu kurang lebih 2 bulan, penyisihan BOD sebesar 90%, penyisihan COD sebesar 99%, penyisihan TSS sebesar 98%, penyisihan TN sebesar 66%, penyisihan TP sebesar 82%, dengan akumulasi kenaikan konsentrasi TN dan TP pada makrofit secara berturut-turut adalah 349% dan 400%."
Depok: Fakultas Teknik Universitas Indonesia, 2020
S-pdf
UI - Skripsi Membership  Universitas Indonesia Library
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Eldia Anggidenia
Potensi makroalga alami sargassum polycystum dan makroalga budidaya eucheuma cottonii dalam menyerap dan menyimpan karbon serta nutrien di Pulau Panjang Teluk Banten = The potency of wild macroalgae sargassum polycystum and cultivation macroalgae eucheuma cottonii to absorb and store carbon also nutrient in panjang island banten bay
"[ABSTRAK
Penelitian mengenai potensi makroalga alami Sargassum polycystum dan makroalga budidaya Eucheuma cottonii dalam menyerap dan menyimpan karbon serta nutrien di Pulau Panjang, Teluk Banten telah dilakukan pada bulan Oktober hingga November 2014. Penelitian bertujuan untuk mengetahui laju penyerapan karbon, kandungan nutrien dan produktivitas primer dari makroalga S. polycystum dan E. cottonii. Lokasi penelitian terletak di bagian hamparan gosong karang dan berlumpur dengan kedalaman 0,5-5 m. Pengamatan pertumbuhan dan laju penyerapan karbon menggunakan metode penandaan thallus pada 30 sampel makroalga setiap hari selama 7 hari. Sampel makroalga selanjutnya dianalisis kandungan nutriennya. Hasil penelitian didapatkan estimasi laju penyerapan karbon S. polycystum dan E. cottonii adalah 0,0081 gC/hari dan 0,0083 gC/hari. Kandungan karbon, nitrogen dan fosfat di S. polycystum adalah sebanyak 6,84%, 1,72% and 0,009% sedangkan kadar karbon, nitrogen dan fosfat di E. cottonii adalah 5,99%, 0,67% dan 0,006%. Berdasarkan analisis statistik dengan uji t, terdapat perbedaan yang signifikan pada laju pertumbuhan, kandungan nitrogen dan fosfat S. polycystum dengan E. cottonii. Sedangkan untuk kandungan karbon tidak terdapat perbedaan yang signifikan antara S. polycystum dengan E. cottonii. Selanjutnya, uji korelasi didapatkan bahwa adanya korelasi antara laju pertumbuhan S. polycystum dan E. cottonii dengan kandungan nitrogen masing- masing sedangkan antara laju pertumbuhan dengan kandungan karbon dan fosfat tidak terdapat korelasi. Produktivitas primer diukur dengan metode botol terang dan botol gelap yang dimodifikasi. Pengukuran produktivitas primer dilakukan pada kedalaman 0,5 m untuk S. polycystum dan 0,1 m untuk E. cottonii. Kandungan oksigen terlarut diukur dengan DO meter. Hasil penelitian didapatkan rata-rata produktivitas primer S. polycystum sebesar 512,99 ± 169,26 mgC/m3/hari dan E. cottonii sebesar 387,88 ± 219,93 mgC/m3/hari.
ABSTRAK
The research about the potency of wild macroalgae Sargassum polycystum dan cultivation macroalgae Eucheuma cottonii to absorb and store carbon also nutrient in Panjang Island, Banten Bay was held on October until November 2014. The research was aimed to estimate carbon sequestration, nutrient content and primary productivity from macroalgae S. polycystum and E. cottonii. Location of the research in the stretch of reef and muddy with a depth of 0,5-5 m. The observation of growth rate and carbon sequestration used thallus marking method in 30 macroalgae shoots everyday for 7 days. Macroalgae was analyzed its nutrient content. The results showed that estimation carbon sequestration by S. polycystum and E. cottonii were 0,0081 gC/day dan 0,0083 gC/day. The content of carbon, nitrogent and phosphor for Macroalgae S. polycystum were 6,84%, 1,72% and 0,009% respectively while the content of carbon, nitrogent and phosphor for Macroalgae E. cottonii were 5,99%, 0,67% dan 0,006% respectively. Based on statistical analysis by t test, there was found significant difference on the growth rate, nitrogent and phosphor content of S. polycystum with E. cottonii. While for the carbon content, there was no significant difference between S. polycystum with E. cottonii. Furthermore, correlation test showed that there was a correlation between the growth rate of S. polycystum and E. cottonii with nitrogent content respectively while between the growth rate with carbon and phosphor content, there was no correlation. Primary productivity were measured by the light and dark bottle method with modification. Measurement of primary productivity was held at a depth of 0,5 m from the surface for S. polycystum and 0,1 m from the surface for E. cottonii. Dissolved oxygen was measured by DO meter. The result showed that mean of primary productivity for S. polycystum was 512,99 ± 169,26 mgC/m3/day and E. cottonii was 387,88 ± 219,93 mgC/m3/day.;The research about the potency of wild macroalgae Sargassum polycystum dan cultivation macroalgae Eucheuma cottonii to absorb and store carbon also nutrient in Panjang Island, Banten Bay was held on October until November 2014. The research was aimed to estimate carbon sequestration, nutrient content and primary productivity from macroalgae S. polycystum and E. cottonii. Location of the research in the stretch of reef and muddy with a depth of 0,5-5 m. The observation of growth rate and carbon sequestration used thallus marking method in 30 macroalgae shoots everyday for 7 days. Macroalgae was analyzed its nutrient content. The results showed that estimation carbon sequestration by S. polycystum and E. cottonii were 0,0081 gC/day dan 0,0083 gC/day. The content of carbon, nitrogent and phosphor for Macroalgae S. polycystum were 6,84%, 1,72% and 0,009% respectively while the content of carbon, nitrogent and phosphor for Macroalgae E. cottonii were 5,99%, 0,67% dan 0,006% respectively. Based on statistical analysis by t test, there was found significant difference on the growth rate, nitrogent and phosphor content of S. polycystum with E. cottonii. While for the carbon content, there was no significant difference between S. polycystum with E. cottonii. Furthermore, correlation test showed that there was a correlation between the growth rate of S. polycystum and E. cottonii with nitrogent content respectively while between the growth rate with carbon and phosphor content, there was no correlation. Primary productivity were measured by the light and dark bottle method with modification. Measurement of primary productivity was held at a depth of 0,5 m from the surface for S. polycystum and 0,1 m from the surface for E. cottonii. Dissolved oxygen was measured by DO meter. The result showed that mean of primary productivity for S. polycystum was 512,99 ± 169,26 mgC/m3/day and E. cottonii was 387,88 ± 219,93 mgC/m3/day.;The research about the potency of wild macroalgae Sargassum polycystum dan cultivation macroalgae Eucheuma cottonii to absorb and store carbon also nutrient in Panjang Island, Banten Bay was held on October until November 2014. The research was aimed to estimate carbon sequestration, nutrient content and primary productivity from macroalgae S. polycystum and E. cottonii. Location of the research in the stretch of reef and muddy with a depth of 0,5-5 m. The observation of growth rate and carbon sequestration used thallus marking method in 30 macroalgae shoots everyday for 7 days. Macroalgae was analyzed its nutrient content. The results showed that estimation carbon sequestration by S. polycystum and E. cottonii were 0,0081 gC/day dan 0,0083 gC/day. The content of carbon, nitrogent and phosphor for Macroalgae S. polycystum were 6,84%, 1,72% and 0,009% respectively while the content of carbon, nitrogent and phosphor for Macroalgae E. cottonii were 5,99%, 0,67% dan 0,006% respectively. Based on statistical analysis by t test, there was found significant difference on the growth rate, nitrogent and phosphor content of S. polycystum with E. cottonii. While for the carbon content, there was no significant difference between S. polycystum with E. cottonii. Furthermore, correlation test showed that there was a correlation between the growth rate of S. polycystum and E. cottonii with nitrogent content respectively while between the growth rate with carbon and phosphor content, there was no correlation. Primary productivity were measured by the light and dark bottle method with modification. Measurement of primary productivity was held at a depth of 0,5 m from the surface for S. polycystum and 0,1 m from the surface for E. cottonii. Dissolved oxygen was measured by DO meter. The result showed that mean of primary productivity for S. polycystum was 512,99 ± 169,26 mgC/m3/day and E. cottonii was 387,88 ± 219,93 mgC/m3/day., The research about the potency of wild macroalgae Sargassum polycystum dan cultivation macroalgae Eucheuma cottonii to absorb and store carbon also nutrient in Panjang Island, Banten Bay was held on October until November 2014. The research was aimed to estimate carbon sequestration, nutrient content and primary productivity from macroalgae S. polycystum and E. cottonii. Location of the research in the stretch of reef and muddy with a depth of 0,5-5 m. The observation of growth rate and carbon sequestration used thallus marking method in 30 macroalgae shoots everyday for 7 days. Macroalgae was analyzed its nutrient content. The results showed that estimation carbon sequestration by S. polycystum and E. cottonii were 0,0081 gC/day dan 0,0083 gC/day. The content of carbon, nitrogent and phosphor for Macroalgae S. polycystum were 6,84%, 1,72% and 0,009% respectively while the content of carbon, nitrogent and phosphor for Macroalgae E. cottonii were 5,99%, 0,67% dan 0,006% respectively. Based on statistical analysis by t test, there was found significant difference on the growth rate, nitrogent and phosphor content of S. polycystum with E. cottonii. While for the carbon content, there was no significant difference between S. polycystum with E. cottonii. Furthermore, correlation test showed that there was a correlation between the growth rate of S. polycystum and E. cottonii with nitrogent content respectively while between the growth rate with carbon and phosphor content, there was no correlation. Primary productivity were measured by the light and dark bottle method with modification. Measurement of primary productivity was held at a depth of 0,5 m from the surface for S. polycystum and 0,1 m from the surface for E. cottonii. Dissolved oxygen was measured by DO meter. The result showed that mean of primary productivity for S. polycystum was 512,99 ± 169,26 mgC/m3/day and E. cottonii was 387,88 ± 219,93 mgC/m3/day.]"
Depok: Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Indonesia, 2014
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Lakeisha Aurelia
Pengaruh pertumbuhan rhizopus azygosporus UICC 539 di suhu 30°C dan 40°C pada campuran lumpur dan bungkil sawit (3:1) steril dan analisis komposisi nutrien = Effect of rhizopus azygosporus UICC 539 growth at 30°C and 40°C on sterile slurry and palm kernel cake mixtures and nutrient composition analysis
"Penelitian ini bertujuan untuk mengetahui pertumbuhan Rhizopus azygosporus UICC 539 di medium Potato Sucrose Agar (PSA) pada suhu 51°C, 52°C, 53°C, 54°C, 55°C, mengetahui kemampuan R. azygosporus UICC 539 untuk memfermentasi campuran lumpur dan bungkil sawit (3:1) steril pada suhu 30C dan 40C dengan Solid-State Fermentation (SSF), dan analisis komposisi campuran lumpur dan bungkil sawit (3:1) steril setelah pertumbuhan R. azygosporus UICC 539. Persiapan inokulum dengan menumbuhkan kapang dalam Potato Sucrose Broth (PSB) secara fermentasi pada suhu 30C dan 40C selama 5 hari. Inokulum (10%, v/v) ditambahkan ke dalam campuran lumpur sawit dan bungkil sawit (3:1) dalam cawan Petri (diameter 9 cm) pada 30C dan 40C selama 5 hari. Analisis nutrien pada fermentasi campuran lumpur dan bungkil sawit berdasarkan Standar Nasional Indonesia (SNI-01-2891-1992). Parameter yang diuji yaitu, energi total, energi dari lemak, kadar air, kadar abu, lemak total, protein, dan karbohidrat total. Hasil penelitian menunjukkan R. azygosporus UICC 539 tidak tumbuh pada PSA di suhu 51, 52, 53, 54, 55C. Strain tersebut dapat memfermentasi campuran lumpur dan bungkil sawit (3:1) steril pada suhu 30°C dan 40°C dengan SSF. Pertumbuhan R. azygosporus UICC 539 pada campuran limbah menunjukkan peningkatan kadar air dan abu, penurunan kadar protein, total kalori dan kandungan karbohidrat. Tidak ada perubahan kalori dari lemak dan kadar lemak total dibandingkan dengan kontrol.
This study aims to determine the growth temperature of Rhizopus azygosporus UICC 539 in Potato Sucrose Agar (PSA) at 51°C, 52°C, 53°C, 54°C, 55°C, to determine the ability of R. azygosporus UICC 539 to ferment mixture of slurry and palm kernel cake (3:1) sterile at 30°C and 40°C with Solid-State Fermentation (SSF), and analysis of the composition of a mixture of sterile slurry and palm kernel cake (3:1) after the growth of R. azygosporus UICC 539. Inoculum preparation by growing the mold in Potato Sucrose Broth (PSB) by fermentation at 30°C and 40°C for 5 days. Inocula (10%, v/v) were added to the mixture of slurry and palm kernel cake (3:1) in Petri dishes (9 cm diameter) at 30°C and 40°C for 5 days. Nutrient analysis in the mixed fermentation of slurry and palm kernel cake was carried out based on the Indonesian National Standard (SNI-01-2891-1992). The parameters tested were total energy, energy from fat, moisture content, ash content, total fat, protein, and total carbohydrates. The results showed that R. azygosporus UICC 539 did not grow on PSA at 51, 52, 53, 54, 55C. The strain could ferment a mixture of slurry and palm kernel cake (3:1) sterile at 30°C and 40°C with SSF. The growth of R. azygosporus UICC 539 in the waste mixture showed an increase in water and ash content, a decrease in protein content, total calories and carbohydrate content. There were no changes in calories from fat and total fat content compared to controls."
Depok: Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Indonesia, 2021
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Deborah Sotya Larasati
Pengaruh penutupan permukaan badan air terhadap perubahan produktivitas primer dan konsentrasi nutrien perairan (Studi kasus: Instalasi solar panel terapung di Danau Mahoni UI) = Effect of covering water bodies on water primary productivity and nutrient concentration changes (Case study: Floating solar panel installation on Lake Mahoni UI).
"Instalasi solar panel terapung memberikan dampak berupa terhalangnya cahaya matahari, yang merupakan sumber energi fitoplankton untuk melakukan fotosintesis, masuk ke badan air. Perubahan dalam aktivitas fitoplankton akan memengaruhi produktivitas primer serta konsentrasi sejumlah nutrien yang terlibat. Penelitian ini bertujuan untuk menganalisis pengaruh penutupan permukaan badan air berupa solar panel terapung terhadap perubahan produktivitas primer dan konsentrasi nutrien yaitu nitrat, amonia, dan fosfat perairan, serta hubungan antara produktivitas primer dan konsentrasi tiap nutrien. Penelitian dilakukan dengan objek studi Danau Mahoni UI dengan jumlah pengambilan sampel sebanyak 8 kali dalam kurun waktu delapan minggu. Analisis data dilakukan dengan menggunakan uji parametrik independent t test dan uji korelasi Pearson's. Penutupan permukaan danau oleh solar panel terapung memberi pengaruh yang signifikan secara statistic terhadap penurunan produktivitas primer danau dengan rata-rata penurunan produktivitas primer danau -79,79%, dan pengaruh yang tidak signifikan secara statistik terhadap peningkatan konsentrasi nutrien dengan rata-rata peningkatan konsentrasi nitrat 3,45%, amonia 18,96%, dan fosfat 4,87%. Korelasi produktivitas primer dengan konsentrasi nitrat dan amonia danau lebih kuat pada keadaan tanpa penutupan permukaan danau, sementara korelasi produktivitas primer dengan konsentrasi fosfat danau lebih kuat pada keadaan dengan penutupan permukaan danau.
Floating solar panel installation has an impact of blocking the sunlight, which serves as the source of energy for phytoplankton photosynthesis, to reach the water bodies. Changes in phytoplankton activities will affect water primary productivity and the concentration of involved nutrients. This study aims to analyze the effect of covering water bodies by floating solar panel on water primary productivity and nutrients (nitrate, ammonia, phosphate) concentration changes, and the relationship between water primary productivity and each nutrient concentration. The study is carried out with Lake Mahoni UI as the study object, with 8 times sampling in the span of eight weeks. Data analysis uses independent t test and Pearson's correlation. The covering of lake by floating solar panel has statistically significant effect on the decrease of lake primary productivity with average decrease of -79,79%, and statistically insignificant effect on the increase of lake nutrient concentration with average increase of 3,45% on nitrate concentration, 18,96% on ammonia concentration, and 4,87% on phosphate concentration. The correlation between lake primary productivity and nitrate and ammonia concentration is stronger without the covering of water bodies, while the correlation between lake primary productivity and phosphate concentration is stronger with the covering of water bodies."
Depok: Fakultas Teknik Universitas Indonesia, 2020
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