碧螺春废弃枝叶营养成分分析及其抗氧化活性研究  

Nutritional components analysis and antioxidant activity of abandoned branches and leaves of Biluochun

作　　者：刘菊华 金震 朱本顺 朱昫飏 蒋晨威 王鹏程 王桃云[1] LIU Ju-hua;JIN Zhen;ZHU Ben-shun;ZHU Xu-yang;JIANG Chen-wei;WANG Peng-cheng;WANG Tao-yun(College of Chemical,Biological and Material Engineering,Suzhou University of Science and Technology,Suzhou 215009,Jiangsu,China)

机构地区：[1]苏州科技大学化生材料工程学院

出　　处：《湖北农业科学》2019年第18期111-114,120,共5页Hubei Agricultural Sciences

基　　金：江苏省大学生创新创业资助项目(201710332040Y);苏州科技大学校科研基金资助项目(341732301)

摘　　要：为评价碧螺春废弃枝叶的营养成分,采用国标法及其他方法对碧螺春废弃枝叶的总花色苷、总多酚、总黄酮、氨基酸、矿质元素等营养成分进行了测定,并对其提取物的抗氧化活性进行了研究。结果表明,碧螺春废弃枝叶中营养成分很丰富,其中总花色苷、总多酚及总黄酮含量分别为0.77mg矢车菊花素-3-葡萄糖苷/g(DW)、165.22mg没食子酸/g(DW)和52.62mg芦丁/g(DW),其水分、灰分、粗脂肪、有机酸、可溶性蛋白质和可溶性总糖含量分别为76.77%、4.80%、3.66%、0.16%、2.99%、3.86%。碧螺春废弃枝叶含有18种氨基酸,总量为55.8mg/g,8种人体必需氨基酸含量为20.53mg/g;其中苏氨酸、缬氨酸、亮氨酸、苯丙氨酸+酪氨酸、赖氨酸含量均高于FAO/WHO模式。同时,其亮氨酸和赖氨酸含量还高于鸡蛋蛋白质模式。碧螺春废弃枝叶提取物具有良好的抗氧化能力,且其总抗氧化能力与提取物含量呈正相关性。因此,碧螺春废弃枝叶具有很好的应用价值,值得进行深入的开发利用。To analysis and evaluate nutrient quality of abandoned branches and leaves of Biluochun(ABLB),using the national standard methods and some other methods,total anthocyanin contents,total polyphenols,total flavonoids,mineral elements and some other nutritional components were determined.And total antioxidant capacity(T-AOC)of ABLB was investigated.The results indicated that there are many kinds of nutrients in ABLB.And contents of anthocyanin,polyphenol and flavnoid were 0.77 mg cyanidin 3-galactoside/g(DW),165.22 mg gillic acid/g(DW)and 52.62 mg rutin/g(DW),respectively.The contents of moisture,ash,crude fat,crude fiber,total soluble protein and total soluble sugar in ABLB were 76.77%,4.80%,3.66%,0.16%,2.99%and 3.86%.The ABLB had 18 kinds of amino acids,total amino acid and essential amino acid were 55.8 mg/g and 20.53 mg/g,respectively.The amino acids of Thr,Val,Leu,Phe+Tyr and Lys were higher than that in the pattern of FAO/WHO and Leu,Lys were higher than the pattern of egg.The extract of ABLB had good antioxidant activity and the content of ABLB was positively correlated with antioxidant capacity.So,the ABLB appear to have a good prospect of exploitation and application.And it is worth our in-depth development and utilization.

关 键 词：碧螺春废弃枝叶 营养成分 分析鉴定 提取物 总抗氧化力 

分 类 号：S571.1[农业科学—茶叶生产加工]