OPTIMASI PARAMETER PROSES PEMBUATAN NATA DE COCO DARI AIR KELAPA MENGGUNAKAN STATISTICAL EXPERIMENTAL DESIGN

INDRIANTI, NONI (2012) OPTIMASI PARAMETER PROSES PEMBUATAN NATA DE COCO DARI AIR KELAPA MENGGUNAKAN STATISTICAL EXPERIMENTAL DESIGN. Bachelor thesis, UNIVERSITAS MUHAMMADIYAH PURWOKERTO.

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Abstract

Nata is a layer of extracellular polysaccharides (cellulose) that is formed by the capsule-forming microbes. It is a fermented food that is created by Acetobacter xylinum, when it is grown in a liquid media containing sugar such as coconut water, it will produce a white layer of nata that floated on the surface media. The objective of this study is firstly to screen the variables that influence such as the amount of the carbon source using sugar (C), amount of the nitrogen source using urea, (N), amount of phosphate source using K2HPO4, (P), amount of the source of vitamins using vitamin B syrup,(V), fermentation time (LF), pH and the starter volume (JS) of nata de coco using Placket-Burman Screening Design, secondly optimalize the three most influential variables in the fermentation using the Response Surface Method. The result of Placket-Burman Screening Design show that the fermentation time (LF) and the amount of carbon source (C) are main factor that influence to yield, whereas the main interaction variable are C, pH, and LF. Meanwhile the result of Central Composite Design (CCD) show that the optimum yield for the amount of the carbon source using sugar at 17.5 gr/500 ml of coconut water, pH 5, and fermentation time for 10 days, it is obtained yield at 90.365% and the organoleptis test result show that respondents like taste and texture of it’s nata.

Item Type: Thesis (Bachelor)
Additional Information: Pembimbing: Alwani Hamad, S. T., M. Sc. dan A. Haris Mulyadi, S.T., M.T
Uncontrolled Keywords: nata de coco, Placket-Burman Screening Design, Response Surface Method, Central Composite Design
Subjects: T Technology > TP Chemical technology
Divisions: Fakultas Teknik > Teknik Kimia
Depositing User: Danarto Kh
Date Deposited: 16 Jan 2018 02:10
Last Modified: 16 Jan 2018 02:10
URI: http://repository.ump.ac.id/id/eprint/7063

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