4.7 Article

Functional cake from rice flour subjected to starch hydrolyzing enzymes: Physicochemical properties and in vitro digestibility

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FOOD BIOSCIENCE
卷 42, 期 -, 页码 -

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ELSEVIER
DOI: 10.1016/j.fbio.2021.101072

关键词

Starch hydrolysis; Glycemic index; Rice flour; Cake; Storage stability

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Rice cake prepared from hydrolyzed flour has lower energy, starch, and glycemic index, higher resistant starch content, and better storage stability compared to control.
Rice cake (RC) was prepared from rice flour subjected to starch hydrolyzing enzymes and studied for in vitro digestibility, glycemic response, morphological characteristics and storage stability. Moisture, water activity, carbohydrate, starch, glycemic index, glycemic load and energy values were significantly lower while, crude protein, fat, fiber, ash, resistant starch and dietary fiber were higher in RC than control (p<0.05). Significantly (p<0.05) higher batter viscosity but lower batter density was observed in hydrolyzed flour than control. Scanning electron microscopic (SEM) studies revealed indistinguishable starch granules and covered mucilage coated compared to control. Storage studies revealed that RC exhibited non-significant increase in a(w), moisture, free fatty acids (FFAs), hardness, cohesiveness and gumminess under both ambient and refrigerated conditions (p>0.05). Chewiness increased significantly after 0 day (p<0.05) however, springiness exhibited non-significant variation from2nd to 6th day of storage (p>0.05).Thus RC has lower energy, starch, glycemic index (GI) and glycemic load (GL) and higher resistant starch content and better storage stability than control.

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