Evaluating the Effects of Microwave Treatment on Functional and Physicochemical Properties of Different Edible Seed Flours
ACS FOOD SCIENCE & TECHNOLOGY(2023)
摘要
The present study aimed to evaluate the modulating effects of microwave treatment (MT) on functional and physicochemical properties of various edible seeds exposed at a 360 W power level for 5, 10, and 15 min exposure time. The results revealed that MT significantly (p < 0.05) enhanced the overall emulsion activity index, water and oil absorption properties. Water-soluble proteins were also increased upon MT, specifically in fenugreek seed flour (18.79-27.10 mg/g) and nigella seed flour (19.05-24.76 mg/g). Changes in physicochemical properties were validated by Fourier transform infrared spectroscopy, X-ray diffraction, and differential scanning calorimetry analysis. However, the crystallinity index decreased in all microwave-treated flour compared to untreated flour, and alterations were observed in protein secondary structures and intermolecular bonds. Therefore, these findings suggest that MT at 360 W up to 15 min exposure time maintains the quality characteristics of edible seeds, hence offering potential applications in the food industry.
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关键词
microwave treatment,functional properties,physicochemical properties,edible seeds,crystallinity
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