Journal
LWT-FOOD SCIENCE AND TECHNOLOGY
Volume 106, Issue -, Pages 247-253Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.lwt.2019.02.026
Keywords
Fortification; Amino acids; Predicted biological (BV) value; Protein efficiency ratio (PER) and thermal stability
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Funding
- Science and Engineering Research Board (SERB), Department of Science and Technology (DST), New Delhi, India
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The effect of baking temperatures (180, 190, 200, 210 & 220 degrees C) on the quality attributes viz., proximate composition, amino acids and protein quality of the de-oiled bottle gourd seed cake powder (BGSCP) fortified biscuit was investigated. Baking temperature predictably was found to have a significant effect on the parameters considered. Excluding ash content, a temperature dependent kinetic of the proximate composition was observed. Foremost heat sensitive amino acids were ARG > MET > LYS > HIS which were declined significantly (p < 0.05) up to 30-35% followed by ILE > ASP > ALA > TRP > VAL > PHE > SER up to 20-25% with increase in the baking temperature from 180 220 degrees C. A significant (p < 0.05) amount decrease in the total essential amino acids (24.02%), predicted biological value (26.69%) and protein efficiency ratio (20.71%) were recorded. Essential amino acids of the fortified biscuit were found more heat sensible as compared to its nonessential amino acids compositions and resulted from an initial ratio of 68:32 (180 degrees C) to 59:41 (220 degrees C), respectively.
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