Physico-chemical characteristics and functional properties of beta-chitin and its use as a raw material for paper making

Date

4-2011

Degree

Bachelor of Science in Chemistry

College

College of Arts and Sciences (CAS)

Adviser/Committee Chair

Veronica C. Sabularse

Abstract

ABSTRACT

OBLIGAR, YORADYL C. University of the Philippines Los Banos, March 2009. 'sic° -chemical characteristics and functional properties of beta-chitin and its use as a raw material for paper making.

Adviser: Dr. Veronica C. Sabularse.

Beta chitin was prepared from squid pen by a two-step process: deproteination and demineralization. The prepared chitin was grayish white in color with a yield of 50.92%. The pulverized squid chitin had a moisture content of 0.88%. On a dry weight basis, the squid chitin had an ash content of 0.32%, protein content of 5.19%, crude fiber 0.20% and crude fat 0.43%.

Beta chitin had a moisture content of 1.20%. Its ash content was 0.21%, protein content of 2.22%, crude fiber 0.15% and crude fat 0.32% on a dry weight basis. It had a bulk density of 1.05 g/triL. From viscosity measurements, the average molecular weight was found to be 1.83 a 106 g/mol and the degree of deacetylation was 24.376 for baseline a and 15.667 Co baseline- b. Dye binding capacity (DBC) of chitin varied with temperature. The DBC of beta chitin was 0.83 mg/L at 20 C. 1.37 mg/L at 40 °C and 2.33 mg/L at 60 'C. Water binding capacity was 94.31% while for fat binding capacity was 88.13%.

Analysis of the chitin paper produced showed that it had a moisture content of 0.58 % and ash content of 0.29%. Paper having a dimension of 9 x 18 cm was able to support a weight of 74.96 g when wet. The absorbency of the paper both for water and oil were determined. The same size of paper was able to hold 35 drops (1.5 mL) of water and 45 drops (2.25 mL) of oil before it started to drip. The water absorbency of the paper as measured by increase in mass was also determined and was found to be 91.42%. The paper was able to absorb the ink in 5 seconds.

Language

English

Location

UPLB Main Library Special Collections Section (USCS)

Call Number

LG 993.5 2011 C4 O25

Document Type

Thesis

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