Precipitation of rice bran protein using carrageenan and alginate

College

Gokongwei College of Engineering

Department/Unit

Chemical Engineering

Document Type

Article

Source Title

LWT - Food Science Technology

Volume

43

First Page

375

Last Page

379

Publication Date

2010

Abstract

Precipitation of rice bran protein, a high-quality nutritional protein, using polysaccharides (alginate and carrageenan) was investigated at various pH, temperature and amount of polysaccharide with the objective of obtaining higher protein recovery and possible wider industrial application. Both alginate and carrageenan were found to be effective in precipitating rice bran protein. At pH 3.5, the maximum amount of protein precipitated were 95% for a carrageenan-to-protein ratio of 2:1, and 93% for an alginate-to-protein ratio of 1:1. However, change of temperature (20–55°C) did not have a significant effect (p>0.05) on the amount of protein precipitated. The precipitate formed using alginate and carrageenan had protein content of 42.15 and 26.48g/100g of precipitate, respectively. The freeze dried product obtained from the rice bran extract precipitated with polysaccharides was capable of forming foam and emulsion, indicating its possible utilization as a food ingredient.

html

Digitial Object Identifier (DOI)

10.1016/j.lwt.2009.08.005

Disciplines

Chemical Engineering

Keywords

Rice bran; Alginates; Precipitation (Chemistry)

Upload File

wf_no

This document is currently not available here.

Share

COinS