木薯肉与木薯皮营养成分的研究初报  

Primary Study of the Nutrient Contents in the Flesh and Cortex of Cassava Root

作　　者：魏艳[1,2] 黄洁[2] 许瑞丽[2] 安飞飞[2] 

机构地区：[1]海南大学农学院,海南海口570228 [2]中国热带农业科学院热带作物品种资源研究所 农业部木薯种质资源保护与利用重点实验室,海南儋州571737

出　　处：《热带作物学报》2015年第3期536-540,共5页Chinese Journal of Tropical Crops

基　　金：农业部现代农业产业技术体系建设专项资金(No.CARS-12-hnhj);农业部农业行业标准制定项目“热带作物品种区域试验技术规程-木薯”(农财发2012-56-311)

摘　　要：为提高木薯块根的利用价值,选取3个木薯品系,分别测定木薯肉、木薯皮中7种营养成分的含量。结果表明：木薯肉鲜样干物质含量为31.5%~42.1%,木薯肉干样粗淀粉含量为76.4%~87.0%,均极显著高于木薯皮;木薯皮鲜样含0.28~0.63 mg/hg的β-胡萝卜素和11.9~26.1 mg/hg维生素C,木薯皮干样含25.0%~28.2%粗蛋白、10.5%~21.5%可溶性糖、14.0%~19.9%粗纤维,均极显著高于木薯肉;与相关研究比较,木薯肉营养优于或不亚于甘薯和马铃薯,木薯皮营养优于或不亚于米糠和小麦麸皮。此外,木薯肉和木薯皮中均存在高干物质含量、高粗淀粉含量和低粗纤维含量的相互关系。Aiming to improve the utilization value of cassava root, 7 nutrient contents in the flesh and cortex of 3cassava clones were analyzed. The results indicated that dry matter content（DMC） of fresh flesh was 31.5%-42.1%,starch content（SC）of dry flesh was 76.4%-87.0%, which were very significantly higher than that in cortex. The contents of β-carotene and Vitamin C in fresh cortex were 0.28-0.63 mg/hg and 11.9-26.1 mg/hg, respectively, the contents of crude protein, soluble sugar and crude fiber in dry cortex were 25.0%-28.2%, 10.5%-21.5% and14.0%-19.9%, respectively, Above 5 nutrient contents in fresh or dry cortex were very significantly higher than that in flesh. Compared with the related research, the flesh nutrition is better than or can match with the sweet potato and potato, the cortex nutrition is better than or can match with the both bran of rice and wheat. Moreover, there are coexistence of higher DMC, higher SC and low crude fiber content together in the flesh and cortex.

关 键 词：木薯 营养 分析 利用 

分 类 号：S533[农业科学—作物学]