Journal of Food, Agriculture and Environment

Vol 11, Issue 1,2013
Online ISSN: 1459-0263
Print ISSN: 1459-0255

Effect of some hydrocolloids as adjuncts on the quality of whole egg or egg white coated fried yam chips


Buliyaminu A. Alimi 1*, Taofik A. Shittu 1, Lateef O. Sanni 1, Toyin A. Arowolo 2

Recieved Date: 2012-12-02, Accepted Date: 2013-01-20


Effect of different hydrocolloids (xanthan gum (XG), carboxymethyl cellulose (CMC) and gum tragacanth (GT)) and their concentrations (0.05-0.15 g/kg) on quality of whole egg (WE) and egg white (EW) coated fried yam chips were investigated. Parameters studied include coating pick-up (CPU) prior to frying, and moisture content (MC), moisture retention due to hydrocolloid (MR), fat content, oil uptake due to hydrocolloid (OU), instrumental colour and textural properties of coated fried yam chips. CPU was significantly (p<0.05) influenced by the type and concentration of hydrocolloid, egg form. Using EW in coatings recorded significantly (p<0.05) higher CPU compared with WE. MC and fat content increased with increased hydrocolloid concentration. Significant linear models for predicting the effect of CPU on fat content (0.905<0.988) and exponential model for predicting the effect of MC on peak force (r2 = 0.842) were generated. Use of EW in coatings resulted in lower MC and fat content. Chips’ lightness increased while browning index (BI) and peak force (or fracturability) decreased with increased hydrocolloid concentration. 


Hydrocolloids, frying, egg white, whole egg, yam chips, quality, moisture retention, oil uptake, browning, texture

Journal: Journal of Food, Agriculture and Environment
Year: 2013
Volume: 11
Issue: 1
Category: Food and Health
Pages: 19-24

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