Muhammad Mazhar, Zhu Yong, Wen Anyan, Liu Na, Qin Likang
Key Laboratory of Plant Resource Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), College of Life Sciences/Institute of Agro-Bioengineering, Guizhou University, Guiyang, Guizhou, China.
School of Liquor and Food Engineering, Guizhou University, Guiyang, Guizhou, China.
Front Nutr. 2022 Dec 22;9:1063602. doi: 10.3389/fnut.2022.1063602. eCollection 2022.
Regular consumption of low-glycemic index (GI) foods is a common strategy for type 2 diabetes patients. To evaluate the potential application of adzuki beans in low-GI foods, the phenolic profile and alpha-amylase inhibitor (α-AI) activity of four varieties of adzuki beans (G24, Te Xiao Li No. 1, Gui Nong No. 1, and Qian Xiao Hei) were determined. The starch digestibility properties and glycemic index (IVGI) of these beans were also evaluated using the digestion model coupled with 3,5-dinitrosalicylic acid colorimetry. The results indicated that these adzuki beans, containing numerous phenolics, showed inhibitory activities to alpha-amylase with the α-AI activities between 1.760 ± 0.044 and 3.411 ± 0.186 U/g. The resistant starch (RS) contributed predominantly to the total starch with proportions between (69.78 ± 2.45%) and (81.03 ± 0.06%); Te Xiao Li No. 1 was the highest compared with the other varieties. The adzuki beans were categorized into low- or medium-GI foods, and the IVGI ranged from (39.00 ± 0.36) to (56.76 ± 4.21). These results suggested that adzuki beans can be used as a component of low-GI foods.
经常食用低血糖指数（GI）的食物是2型糖尿病患者常用的策略。为了评估小豆在低GI食物中的潜在应用，测定了四个小豆品种（G24、特小李一号、桂农一号和黔小黑）的酚类成分和α-淀粉酶抑制剂（α-AI）活性。还使用消化模型结合3,5-二硝基水杨酸比色法评估了这些小豆的淀粉消化特性和血糖指数（IVGI）。结果表明，这些富含多种酚类物质的小豆对α-淀粉酶具有抑制活性，α-AI活性在1.760±0.044至3.411±0.186 U/g之间。抗性淀粉（RS）在总淀粉中占主导地位，比例在（69.78±2.45%）至（81.03±0.06%）之间；与其他品种相比，特小李一号的比例最高。小豆被归类为低GI或中GI食物，IVGI范围为（39.00±0.36）至（56.76±4.21）。这些结果表明，小豆可作为低GI食物的一种成分。
