核桃渣的蛋白组成分析及其营养价值评价  

Protein Composition Analysis and Nutritional Value Evaluation of Chinese Walnut Residues

作　　者：李杰[1] 谢辰阳 黄雪薇 杨芳[1] LI Jie;XIE Chenyang;HUANG Xuewei;YANG Fang(School of Environmental Ecology and Biological Engineering,Wuhan Institute of Technology,Key Laboratory of Green Chemical Process(Wuhan Institute of Technology),Ministry of Education,Engineering Research Center of Phosphorus Resources Development and Utilization of Ministry of Education,Wuhan 430205,China)

机构地区：[1]武汉工程大学环境与生态工程学院,绿色化工过程教育部重点实验室(武汉工程大学),国家磷资源开发利用工程技术研究中心,湖北武汉430205

出　　处：《武汉工程大学学报》2022年第3期298-303,共6页Journal of Wuhan Institute of Technology

基　　金：国家自然科学基金青年基金(31701604);教育部磷资源开发利用工程研究中心、湖北省中低品位磷矿开发利用协同创新中心创新基金(LCX2021002);武汉工程大学绿色化工过程教育部重点实验室开放基金(GCP202103)。

摘　　要：针对核桃渣是核桃油加工后的废弃物,而其蛋白质含量较高的实际情况,分析了其中水分、灰分、蛋白质以及氨基酸组成,并对其进行营养价值评价。实验结果表明:核桃渣的水分含量在5.68%~6.14%之间,灰分含量在4.85%~5.47%之间,蛋白质含量在42.47%~53.58%之间。新疆、湖北及云南三个地区核桃渣的必需氨基酸指数分别为68.60、65.00和70.70,可消化必需氨基酸评分分别为40%、35%和48%。核桃渣的第一限制氨基酸为赖氨酸,其它必需氨基酸含量均高于联合国粮食及农业组织/世界卫生组织标准。因此,核桃渣是一种优质的植物蛋白源,本研究可为其后续植物蛋白产品的开发提供参考依据。Walnut residue is the waste of walnut oil processing,and its protein content is high.The content of moisture,ash and protein and amino acid composition was analyzed and its nutritive value was evaluated.The results show that the moisture content of walnut residue is 5.68%-6.14%,the ash content is 4.85%-5.47%,and the protein content is 42.47%-53.58%.The essential amino acid indexes of walnut residue from Xinjiang,Hubei and Yunnan are 68.60,65.00 and 70.70,respectively,and the digestible essential amino acid scores are 40%,35% and 48%,respectively.The first limiting amino acid of walnut residue is lysine,and the content of other essential amino acids is higher than that confirmed by the standard of Food and Agriculture Organization of the United Nations/World Health Organization.Therefore,the walnut residue is a high quality vegetable protein source,and this study can provide a reference for the future development of vegetable protein products.

关 键 词：核桃渣 氨基酸 营养价值 评价 

分 类 号：TS255.7[轻工技术与工程—农产品加工及贮藏工程]