Evaluation of physical properties, functional components, and starch digestibility of dumpling skins made from barley flour with various amounts of β-glucan

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  • β-グルカン量の異なる大麦餃子皮の物性, 機能性成分および糖質消化性の評価
  • v-グルカンリョウ ノ コトナル オオムギ ギョウザ ヒ ノ ブッセイ, キノウセイ セイブン オヨビ トウシツ ショウカセイ ノ ヒョウカ

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Abstract

<p>This study aimed to evaluate the physical properties, functional components and starch digestibility of dumpling skins made from barley flour with various amounts of β-glucan (cv. Sachiho Golden, Mochikinuka, and Daishimochi). Barley dumpling skins were prepared by mixing 60 g of barley flour, 40 g of wheat flour, and 65 ml of ultrapure water, kneaded, shaped, and cooked. Wheat dumpling skins were also prepared and used for comparison. β-glucan content in the cooked skins was the highest in Daishimochi (2.2 % db), while total polyphenol content was the highest in Daishimochi (2.0 % db). Cooked skins showed that Mochikinuka (2.4 N) and Daishimochi (2.4 N) had the lowest firmness, and Daishimochi (7.7 mm) had the shortest extension. Starch digestibility differed among the cooked skins, and estimated glycemic index was highest for Mochikinuka (127.7) and lowest for Sachiho Golden (94.4). Equilibrium percentage of starch hydrolysis was negatively correlated with the apparent amylose content (r = -0.99, p < 0.01) and resistant starch content (r = -0.98, p < 0.05). β-glucan content in the cooked skin did not correlate with firmness, extension, apparent viscosity, and starch digestibility, indicating that it may have indirectly affected these properties.</p>

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