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Fikriatun Nurhikmawati
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Chemistry

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PENGGUNAAN KITOSAN DARI LIMBAH KULIT UDANG SEBAGAI INHIBITOR KEASAMAN TUAK Fikriatun Nurhikmawati; Manuntun Manurung; A. A. I. A. Mayun Laksmiwati
Jurnal Kimia (Journal of Chemistry) Vol. 8, No. 2 Juli 2014
Publisher : Program Studi Kimia, FMIPA, Universitas Udayana (Program of Study in Chemistry, Faculty of Mathematics and Natural Sciences, Udayana University), Bali, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (115.746 KB) | DOI: 10.24843/JCHEM.2014.v08.i02.p08

Abstract

The research has been conducted to determine the ability of chitosan from shrimp shell as an inhibitor of tuak acidity. Isolation of chitin is done through three stages, namely deproteination, demineralization, and depigmentation. The deacetylation process of chitin into chitosan was accomplished with 50% (w/v) NaOH with a ratio of 1:10 at 90oC for 120 minutes. 15.33 g chitin was gained (15.33%), and 9.94 g chitosan or 9.94% were obtained with a degree of deacetylation of 69.87%. The optimum concentration of kitosan to inhibit tuak pH changes was 2% (w/v) thus providing a longer shelf life with lowest acidity (pH).
Co-Authors Anak Agung Istri Agung Mayun Laksmiwati Manuntun Manurung