黔江肾豆营养品质研究-食品科学.pdf

※营养卫生 食品科学 2012, Vol. 33, No. 13 271 1 1 1 1,2, 梁叶星 ，彭佳莹 ，邹泊羽 ，钟 耕 * (1.西南大学食品科学学院，重庆 400716 ； 2.重庆市特色食品工程技术研究中心，重庆 400716) 以黔江肾豆为对象进行理化分析研究并运用Englyst 法对其碳水化合物消化速度做进一步测定。结果表明： 肾豆籽粒中蛋白质含量达(23.08 ±0.97)% 、淀粉含量为(43.44 ±0.69)% 、脂肪含量为(2.72 ±0.09)% 、粗纤维含量 为(3.90 ±0.04)% 、灰分含量为(3.19 ±0.06)% 、还原糖及非还原糖含量分别为(1.38 ±0.03)% 、(0.29 ±0.05)% ，钾 镁含量高、而钠含量低，其中蛋白质评价必需氨基酸指数(EAAI)为 0.87 ，氨基酸比值系数(RC)为 0.91 ，是一种低 脂高蛋白高矿物元素含量的优质食物资源。肾豆富含慢速消化淀粉，含量达(41.46 ±0.64)% ( 以干基淀粉计) ，加 热糊化对其含量有降低作用。 黔江肾豆；营养品质；慢速消化淀粉 Nutritional Quality of Qianjiang Grown Kidney Beans 1 1 1 1,2, LIANG Ye-xing ，PENG Jia-ying ，ZOU Bo-yu ，ZHONG Geng * (1.College of Food Science, Southwest University, Chongqing 400716, China ； 2. Chongqing Special Food Programme and Technology Research Center, Chongqing 400716, China) Abstract：Kidney bean (Phaseolus vulgaris L.) is a featured crop grown in Qianjiang district, southeast Chongqing, China. The plant is commercially exploited due to its pleasant sensory characteristics and plentiful nutrients. In the present study, the chemical composition of Qianjiang grown kidney beans were determined. Moreover, the digestion rate of carbonhydrates from Qianjiang grown kidney beans was also explored by Englyst method. The results indicated that Qianjiang grown kidney beans contained protein (23.08 ± 0.97)%, starch (43.44 ± 0.69)%, crude fat (2.72 ± 0.09)%, crude fiber (3.90 ± 0.04)%, ash (3.19 ± 0.06)%, reducing sugar (1.38 ± 0.03)% and non-reducing sugar (0