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Proximate, Amino Acid Composition and Antibacterial Activity of Woton (Sterculia sp.) Leaves from Raja Ampat, West Papua, Indonesia Mohammad Sayuti; Iman Supriatna; Intanurfemi B. Hismayasari; Ahmad Yani; Saidin
Jurnal Airaha Vol 8 No 01: June 2019
Publisher : Politeknik Kelautan dan Perikanan Sorong, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (159.054 KB) | DOI: 10.15578/ja.v8i1.104

Abstract

Woton (Sterculia sp.) plant is an endemic plant of Papua and West Papua, Indonesia that has many benefits for the community. This research aims to examine the contents of proximate, amino acid, and antibacterial activity from the leaves extract of two plants namely Sterculia shilinglawii and Sterculia tragacantha. The sample of Sterculia sp. leaves are cleaned, dried, and milled. Then, its chemical composition, amino acid, and bacterial activity are analyzed using a standard procedure. The chemical composition was analyzed using standard AOAC, amino acid was examined using LCMS and antibacterial activity was analyzed using barrier zone against the bacteria that attack the fish. The research results showed that the chemical compositions of Sterculia sp. leaves are carbohydrates, protein, water, ash and fat. The main amino acid contents of woton (Sterculia sp.) leaves are L-Arginine, L-Valine, L-Proline, L-Alanine. Bacterial Test Results showed that woton (Sterculia sp.) leaves extract has intermediate inhibition response against V. algynoliticus. It has been concluded that Sterculia sp. leaves have the potential chemical content.
PENINGKATAN LAJU PERTUMBUHAN SPESIFIK IKAN LELE (Clarias sp) DENGAN SUPLEMENTASI VITAMIN C PADA PAKAN Agung Abadi; Novela W Romboisano; Yati M Lalaem; Ernawati; Intannurfemi B Hismayasari; Asthervina W Puspitasari; Saidin
Journal of Fish Nutrition Vol. 2 No. 1 (2022): Journal of Fish Nutrition
Publisher : Journal of Fish Nutrition

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (754.446 KB) | DOI: 10.29303/jfn.v2i1.1383

Abstract

This study aims to determine the effect of vitamin C supplementation at feed on the specific growth rate (SGR) and Body weight Index (BWI). The high production of catfish requires increased growth. This research was conducted by adding vitamin C to the feed at 200 mg/L (A), 400 mg/L (B), 600 mg/L (C) and Control (K). The addition of vitamin C to feed conducted by dissolving vitamin C in water and then adding it to the feed according to the dose. The results of ANOVA data analysis using SPSS 16 showed that there was no significant difference sig>0.05 with values ​​for the Specific Growth Rate (SGR) respectively B 5.41 %bw/d, C 4.90 %bw/d, A 2.41% bw/d, and K 1.69 %bw/d, as well as BWI values ​​of B 89%, C 86%, A 62% and K 45%, respectively. Statistical supplementation of vitamin C in feed did not have a significant effect on increasing the specific growth rate and the percentage of weight gain index.
Co-Authors Agung Abadi Ahmad Yani Asthervina W Puspitasari Ernawati Hismayasari, Intanurfemi B Iman Supriatna Intannurfemi B Hismayasari Novela W Romboisano Sayuti, Mohammad Yati M Lalaem