PRODUCTION OF LOW PHYTIC ACID WEANING FOODS BASED ON WHEAT GRAINS: II - EVALUATION OF PRODUCED NOVEL WEANING FOOD IN COMPARISON WITH COMMERCIAL PRODUCTS

Document Type : Original Article

Authors

Food Industries Dept., Fac. of Agriculture, Mansoura Univ., Mansoura, Egypt.

Abstract

This study aimed to evaluate produced weaning food based on wheat grains
low in its content of phytic acid PA which inhibits the minerals absorption such as Ca,
Fe and Zn. These minerals are of special importance in infants nutrition. A laboratory
formula of weaning food was prepared named N with low content of PA by naturally
activation of phytase. It was compared with 6 samples of commercial weaning foods
from local markets. Phytic acid, phosphorus and its derivatives and the absorption of
previous minerals were determined in all samples.
The results showed that PA in commercial weaning food samples ranged
from 73.798 to 352.642 mg/100g., while reduced to be 6.670mg/100g for N sample.
The percentage of phytate phosphorus to total phosphorus ranged from 7.150 -
20.161 % for the commercial samples, but it was just 0.520 %, for the N sample. The
phytate: Ca, Fe and Zn molar ratio ranged from 0.010 to 0.214 , 0.921 to 3.842 and
2.140 to 3.810 respectively for the commercial samples, while the N sample recorded
0,001 , 0.038 and 0.091 respectively.
This study was carried out to evaluate produced novel weaning food based
on wheat grains low in PA by activation of naturally occurring phytase. Also, this novel
product was compared with some commercial weaning products.