Claim Missing Document
Check
Articles

Found 4 Documents
Search

POTENSI KANDUNGAN PIGMEN KLOROFIL a DAN b BEBERAPA RUMPUT LAUT GENUS Gracilaria: OPTIMALISASI KANDUNGAN KARBOHIDRAT Nugrayani, Dewi; Dewi, Rose; Endrawati, Hadi; Sanjayasari, Dyahruri
Jurnal Harpodon Borneo Vol 9, No 1 (2016): Volume 9 No 1 April 2016
Publisher : Jurnal Harpodon Borneo

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (181.965 KB) | DOI: 10.35334/harpodon.v9i1.56

Abstract

Response pigment and ecological is major factor of photosynthesis. Quantity of chlorophyll a,b are not same in Gracilaria, though in one genus. Difference fluctuation ecological conditions on waters; (Station 1): estuaries, (Station 2): coastal, (Station 3): 100m from the shoreline, based on literature study will affect the rate of  photosynthesis. This research aims  need to measure of quantitatively pigments (chlorophyll a,b) and carbohydrate to know the difference. Method by purposive random sampling; chlorophyll a,b using UV-Vis spectrophotometer; carbohydrate with analysis by difference; also control  physical and chemical parameters of waters. Results show the chlorophyll a, b and carbohydrates in G. verrucosa (163.58 ± 8.90mg /L;79.32 ± 5.53 mg /L; 37.19 ± 1.50%); G. gigas (128.01 ± 7.2 mg /L;117.76 ± 5,85mg /L; 44.48 ± 0.90% ) and G. salicornia (100.36 ± 23.35mg/L; 93.73 ± 11,59mg/L; 36.94 ± 0.72%). The highest correlation between pigments (chlorophyll b) with the formation of carbohydrate in G. gigas (r = 0.991). Range of water quality measured during the study still the threshold that can be tolerated Gracilaria, found only high phosphorus content above the threshold that 1.935 to 2.517 mg/ L.Key words: G. verrucosa, G. gigas, G. salicornia, Chlorophyll a, b , Carbohydrate
ESTIMASI NISBAH PROTEIN-ENERGI PAKAN IKAN SENGGARINGAN (Mystus nigriceps) DASAR NUTRISI UNTUK KEBERHASILAN DOMESTIKASI Sanjayasari, Dyahruri; Kasprijo, Kasprijo
Jurnal Perikanan dan Kelautan Vol 15, No 02 (2010)
Publisher : Fakultas Perikanan dan Kelautan Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jpk.15.02.%p

Abstract

Senggaringan fish is one of important fisheries resource which needs todevelop in Purbalingga. Unfortunately there were still lacks of domesticationtechnology to support it. One of the most potential aspects to prepare theaquaculture of senggaringan is by preparing the nutrition aspect and feedmanagement. This research has purpose to encourage the effect of protein leveland protein energy ratio in different feed to relative growth, protein retention(PR) and protein efficiency ratio (PER) of senggaringan. The method was usedCompletely Randomize Design with five different feed protein level and energyratio P1 (25;18), P2 (30;13.9), P3 (30; 14.2), P4 (30;15), P5 (35;12) with 4repetitions. The data was collectected for five weeks. The result showed that P4(30;15) had the best performance than other treatments. The best PR and PERalso showed by treatment P4 (P<0.05), 47,14% and 1,52. It means thatsenggaringan fish can accept pellet as their food to fastening the growth. Butthere still need more research to encourage the nutrition composition every phaseand feed management of senggaringan fish to succeed the domestication.
Kajian Senyawa Flavonoid pada Sargassum Sp. dengan Pengeringan Asin Sebagai Sumber Antioksidan Helena, Shifa; Sanjayasari, Dyahruri
Jurnal Laut Khatulistiwa Vol 1, No 1 (2018): February 2018
Publisher : Dept. Marine Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/lkuntan.v1i1.24008

Abstract

Rumput laut diketahui berpotensi mengandung antioksidan yang dapat menghambat pembentukan karsinogenik pada tubuh. Salah satu makroalgae yang memiliki senyawa bioaktif ini adalah alga coklat antara lain Sargassum sp. Tujuan dari penelitian ini adalah mengetahui potensi senyawa flavonoid pada rumput laut coklat (Sargassum sp.) dengan pengeringan asin sebagai sumber antioksidan. Metode yang digunakan yaitu ekstraksi Soxhletasi. Hasil uji kualitatif yang diperoleh menunjukkan bahwa Sargassum sp. mengandung senyawa bioaktif seperti senyawa flavonoid. Kelompok senyawa aktif flavonoid ini dapat menjadi sumber antioksidan yang baik untuk perlindungan tubuh akibat radikal bebas. Nilai rendemen pada ekstrak rumput laut coklat (Sargassum sp.) dengan metode ekstraksi Soxhlet dengan rataan berat 30,00 gram mendapat nilai rataan rendemen 22,56%. Hasil perhitungan kadar air menunjukan bahwa rataan kadar air yang diperoleh adalah 23,63%.
SKRINING FITOKIMIA DAN UJI TOKSISITAS EKSTRAK DAUN KATUK (Saoropus androgenus (L.) Merr.) TERHADAP LARVA UDANG ARTEMIA SALINA: POTENSI FITOFARMAKA PADA IKAN Dyahruri Sanjayasari; Wiranda G Pliliang
Berkala Perikanan Terubuk Vol 39, No 1 (2011): Februari 2011
Publisher : Fakultas Perikanan dan Kelautan, Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (786.421 KB) | DOI: 10.31258/terubuk.39.1.%p

Abstract

Phytochemical screening and Brine Shrimp lethality test of katuk leavesextract had been done against Artemia salina Leach. The aims of this study is toscreen potentially bioactive extract of katuk leaves as an effort to find out thechemical substances responsible for the toxic effect. Katuk leaves (Saoropusandrogenus (L.) Merr.) was extracted by ethanol 96%, to find the rendemen ofkatuk leaf extract. Phytochemical screening was done qualitatively. The toxicitytest was used experimental design with 4x3 treatments. The concentration extract50 ppm, 100 ppm, 500 ppm and 1000 ppm, with 3 repetitions. Its effect was testedagainst A. salina, L (Brine Shrimp Test). The result of phytochemical screeningshowed that compounds in the extract of katuk leaves (Saoropus androgenus (L.)Merr.) contained of sterol after the addition of diethyl ether. Katuk leaf extractalso contained phenol substance such as tannin, saponin and flavonoid. The resultof the study shows that extract of katuk leaves (Saoropus androgenus) was toxicbecause it was able to kill more than 50% larva of A. salina, L at the concentrationless than 1000 ppm. The LC50 of katuk leaves extract (Saoropus androgenus (L.)Merr.) was shown at 954.01 ppm.