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All Journal Itepa : Jurnal Ilmu dan Teknologi Pangan
Nengah Sri Surianti
Mahasiswa Ilmu dan Teknologi Pangan, FTP Unud
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology

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PENGARUH KONSENTRASI ASAM SITRAT TERHADAP KARAKTERISTIK EKSTRAK PIGMEN LIMBAH SELAPUT LENDIR BIJI TERUNG BELANDA (Cyphomandra beatacea S.) DAN AKTIVITAS ANTIOKSIDANNYA Nengah Sri Surianti; I Gusti Ngurah Agung; GAK Diah Puspawati
Jurnal Ilmu dan Teknologi Pangan (ITEPA) Vol 1 No 1 (2012): Jurnal ITEPA
Publisher : Department of Food Science and Technology Study Program, Faculty of Agricultural Technology, Udayana University

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Abstract

This research aimed to determine the influence of citric acid concentration on characteristic ofthe pigment extract of seed jelly tamarillo waste and to determine the exact concentration of citric acidto produce the best characteristic of pigment extracts of seed jelly tamarillo waste. This research useda randomized block design with treatments concentration of citric acid concentration on five levels,such as: 2%, 4%, 6%, 8%, and 10%. The treatment was repeated 3 times in order to get 15 unitsexperimntal. Vareabel observed were the yield, moisture content, anthocyanin total, phenol total andantioxidant activity. The results showed that the treatment is very significant on yield, totalanthocyanin, and total phenols, dan significantly on water content. The best results were obtainedfrom the treatment of citric acid concentration of 10% with characteristic yield of 42.29%, watercontent of 13.23%bk, anthocyanin total of 82.38 mg/100g, and phenols total of 33976.20 mg/100g.The best results pigment extract had antioxidant activity at IC50 on concentrations of 75.15 ppm.
Co-Authors Gusti Ayu Kadek Diah Puspawati I Gusti Ngurah Agung