Characterization of fungal SCP from lignocellulosics : changes in chemical composition as affectted by substrate

Date

3-1985

Degree

Bachelor of Science in Agricultural Chemistry

College

College of Arts and Sciences (CAS)

Adviser/Committee Chair

Carlito R. Barril

Abstract

Paner, Teodoro Mac, College of Agriculture-College of Arts and Sciences, University of the Philippines at Los Banos. March, 1985. Characterization of Fungal SCP from Lignocellulosics: Changes in Chemical Composition as Affected by Substrate. Adviser: Dr. Carlito R. Barril

ABSTRACT

Pretreated rice straw, rice hulls, bagasse, and corn cobs were used to produce single-cell protein (SCP) using Chaetomium cellulolyticum. SCP from rice hulls yielded 10.38%, 13.27%, and 9.19% crude protein for 1% and 2% NaOH-pretreated and alkaline peroxide-pretreated rice hulls, respectively, after 24 hours of shake flask fermentation.

Proximate analysis of SCP from rice straw, bagasse, and corn cob as substrate after 30 hours of shake flask fermentation gave the following results, respectively (dry-matter basis): crude protein, 28.52%, 23.56%, 21.41%; crude fat, 1.52%, 1.27%, 1.13%; crude fiber, 7.61%, 27.45%, 19.41%; ash, 38.77%, 11.38%, 14.49%; nitrogen-free extract, 23.58%, 36.34%, 43.45%; RNA, 0.73%, 2.10%, 2.50%, The essential amino acid profile of rice straw SCP and bagasse SCP com-pared well with the FAO reference, except for a lower value for methionine and trace amounts for cystine. Significant difference was found in the alanine content, which in bagasse SCP was 18.37% of the protein and in rice straw SCP was 8.04% of the protein, while the other amino acids were generally found to be lower in bagasse SCP.

Location

UPLB Main Library Special Collections Section (USCS)

Call Number

LG 993.5 1985 A13 P36

Document Type

Thesis

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