MODELLING FOR THERMAL DEGRADATION OF THIAMIN (B1) IN FLAT ARABIC BREAD
Journal Title: International Journal of Applied and Natural Sciences - Year 2019, Vol 8, Issue 4
Abstract
Flat Arabic bread was prepared from 40.4 ppm thiamin- fortified patent, straight and whole wheat flours, by the straight dough method. Doughs were fermented for three fermentation times and baked at five temperatures for three different times each. The so-obtained bread was analyzed for its thiamin content using HPLC method.A predictive mathematical model using multivariate stepwise regression analysis with % thiamine retention as dependent variable, and baking conditions of fermentation time, baking temperature and time as independent variables, was constructed. Results indicated that regardless of the flour type, the process of baking resulted in about 21-24% loss of the vitamin, with baking temperature as the most significant variable affecting its degradation in this type of bread, followed by baking time. Fermentation time, on the other hand, had no significant effect on the retention of this vitamin. The model also showed that baking temperature is responsible for as much as 76% of variation in the thiamin change during baking.
Authors and Affiliations
Albawarshi Y. , Amr A. , Ismael K.
CYCLIC NEUTROPENIA FROM RIYADH, SAUDI ARABIA
Cyclic neutropenia has first been described in the literature in 1910, which discussed a 19 -month -old boy, who presented with periods of recurrent neutropenia, mouth ulcers, and fever1. Over the years our understanding...
Characterization of Rhizobium Isolates from Sesbania Rhizosphere and their Role in Bioremediation of Glyphosate and Monocrotophos
Monocrotophos and glyphosate are widely used as plant protection agents worldwide. The present study deals with the characterization and efficiency of three Rhizobium isolates (SR G, SR I, SR 01) obtained from the root n...
ASSESSING ECOLOGICAL QUALITY OF RIPARIAN HABITAT OF STREAMS OF NARMADA RIVER BASIN USING QBR INDEX
The present study was conducted to assess the ecological quality of riparian habitat of streams of Narmada river basin using QBR index. QBR index is used to determine the riparian habitat quality of Barna and Jamner stre...
ASSESSING LEVELS OF SELF-EFFICACY AMONG FAMILY CAREGIVERS OF PATIENTS WITH CANCER
Background: Family caregivers (FCs) play a substantial role in supporting and managing patients with cancer. Self-efficacy is investigated as an essential prerequisite for FCs providing optimum patient care. Purpose: Thi...
A Review of the History, Cultivation, Chemistry, Pharmacology and Adverse Health Effects of Khat
Khat is a term used for fresh leaves and buds of the plant Catha edulis. Khat chewing is a social tradition in some countries of eastern Africa, the southern part of Saudi Arabia and Yemen. It is chewed mainly for its in...