3种梵净山茶营养成分分析
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摘要
根据国家相关检测标准,以梵净山茶为研究对象,测定翠珠绿茶、金黔红红茶、梵针黑茶中主要营养成分、氨基酸含量、游离氨基酸含量、矿物质元素、重金属含量,比较3种梵净山茶的营养成分差异并对其营养价值进行了评价。试验结果表明:翠珠绿茶的维生素C含量较高为191.50 mg/100 g,梵针黑茶的还原糖和总糖含量较高分别达3.42%和7.24%,金黔红红茶的总糖含量较低;梵针黑茶的粗纤维含量最高达13.43%,3种梵净山茶的EAA/TAA的比值均大于40%,EAA/NEAA比值均大于60%,远超过WHO/FAO理想蛋白的标准模式;金黔红红茶游离氨基酸总量较高为2.167 g/100 g,翠珠绿茶茶氨酸含量较高为0.635 g/100 g;梵净山茶富含人体必需的微量元素,可作为人体补充矿物质元素的重要来源,其中翠珠绿茶的Fe、Se含量较高分别为674.76 mg/kg、7.56 mg/kg,金黔红红茶的Zn、Cu含量较高分别为116.95 mg/kg、77.90 mg/kg;重金属含量测定结果符合食品安全国家标准。
According to the national related standards,some of the major nutritional components,including amino acid contents,free amino acid contents,mineral elements,heavy metal elements in Fanjing Mountains tea were determined. The results showed that Cui-zhu green tea which has high content vitamin C was191.50 mg/100 g,Fan-zhen black tea of reducing sugar and total sugar content was higher 3.42 % and 7.24 %respectively,the total sugar content of Jin-qianhong black tea was relatively low. Crude fiber content of Fan-zhen black tea was up to 13.43 %.The ratio of three kinds of Fanjing Mountains tea EAA/TAA were greater than40 %,the EAA/NEAA ratio were greater than 60 %,far more than the WHO/FAO ideal protein standard mode.Jin-qianhong black tea total free amino acid was higher which was 2.167 g/100 g,theanine content of green tea was higher which was 0.635 g/100 g. Fanjing mountains tea was rich in essential trace elements,could be used to supplement the body an important source of mineral elements,including Fe and Se content of Cui-zhu green tea was higher,respectively was 674.76 mg/kg,7.56 mg/kg,Zn and Cu content of Jin-qianhong black tea was higher,respectively was 116.95 mg/kg,77.90 mg/kg. The determination results of heavy metal elements content in accord with national food safety standards.
According to the national related standards,some of the major nutritional components,including amino acid contents,free amino acid contents,mineral elements,heavy metal elements in Fanjing Mountains tea were determined. The results showed that Cui-zhu green tea which has high content vitamin C was191.50 mg/100 g,Fan-zhen black tea of reducing sugar and total sugar content was higher 3.42 % and 7.24 %respectively,the total sugar content of Jin-qianhong black tea was relatively low. Crude fiber content of Fan-zhen black tea was up to 13.43 %.The ratio of three kinds of Fanjing Mountains tea EAA/TAA were greater than40 %,the EAA/NEAA ratio were greater than 60 %,far more than the WHO/FAO ideal protein standard mode.Jin-qianhong black tea total free amino acid was higher which was 2.167 g/100 g,theanine content of green tea was higher which was 0.635 g/100 g. Fanjing mountains tea was rich in essential trace elements,could be used to supplement the body an important source of mineral elements,including Fe and Se content of Cui-zhu green tea was higher,respectively was 674.76 mg/kg,7.56 mg/kg,Zn and Cu content of Jin-qianhong black tea was higher,respectively was 116.95 mg/kg,77.90 mg/kg. The determination results of heavy metal elements content in accord with national food safety standards.
引文
[1]孙长颢,凌文华,黄国伟.营养与食品卫生学[M].北京:人民卫生出版社,2013
[2]阚建全,谢笔均.食品化学[M].北京:中国农业大学出版社,2008
[3]韩立新,李冉.ICP-AES法测定茶叶、茶水中的矿物质和微量元素[J].光谱学与光谱分析,2002,22(2):304-306
[4]K Kuan-Li,W Meng-Shih,C Chun-Te,et al.Comparative studies on the Hypolidemic and growth suppressive effects of oolong,black,pu-erh and green Tea leaves in rats[J].Journal of Agricultural&Food Chemistry,2005,53(2):480-489
[5]宋鲁彬,黄建安,刘仲华,等.中国黑茶对FXR及LXR核受体的作用[J].茶叶科学,2009,29(2):131-135
[6]吕海鹏,谷记平,林智,等.普洱茶的化学成分及生物活性研究进展[J].茶叶科学,2007,27(1):8-18
[7]陶华君.茶叶与人体健康[J].中国食物与营养,2004(2):45-48
[8]王汉生.茶与人体健康[J].广东茶业,1995(2):21-28
[9]吴艳艳,侯冬岩,回瑞华,等.高效液相色谱法测定铁观音茶叶和茶茎中的维生素C含量[J].鞍山师范学院学报,2012,14(6):22-25
[10]李立祥,罗志刚.安徽省茶树品种与茶叶氨基酸遗传差异的对应分析[J].生物数学学报,1997,12(4):366-371
[11]齐红革,尹华涛,廖振宇,等.ICP-MS法测定不同产地绿茶中矿物质和微量元素[J].食品研究与开发,2015,36(8):65-67
[12]许乾丽,孙向彤,李明炬,等.老鹰茶、虫茶的化学成分研究[J].贵州科学,2000(3):191-195
[13]郁建平.贵州苦丁茶植物资源及化学成分分析[J].植物资源与环境学报,1997(2):22-25
[14]龙成梅,杨鼎,孙成斌,等.都匀毛尖茶中铁、铜、锰的测定[J].广州化工,2012,40(17):98-100
[15]范宝磊,张健.火焰原子吸收光谱法和原子荧光光谱法测定茶叶中的微量元素[J].光谱实室,2010,27(3):1008-1011
[16]陈丽珍,翟锐锐,李娟.海南白沙绿茶中维生素C含量的测定[J].广州化工2012,40(6):103-104
[17]付于.脑缺血再灌注损伤神经细胞非谷氨酸依赖性钙离子通道的研究进展[J].中西医结合心脑血管病杂志,2011,31(1):106-107
[18]程桂广,刘会灵,王煜丹,等.雀舌茶营养成分分析[J].营养学报,2010,32(2):201-202
[19]汤鸣绍.中国白茶的起源、品质成分与保健功效[J].福建茶叶,2015,37(2):45-50
[20]郭玮玮.精氨酸对肉仔鸡生长性能和免疫功能的影响及其机理研究[D].呼和浩特:内蒙古农业大学,2014
[21]中华人民共和国卫生部.GB/T 2762-2012食品安全国家标准食品中污染物限量[S].北京:中国标准出版社,2012
[22]中华人民共和国农业部.NY 659-2003茶叶中铬、镐、汞、砷及氟化物限量[S].北京:中国标准出版社,2003
[2]阚建全,谢笔均.食品化学[M].北京:中国农业大学出版社,2008
[3]韩立新,李冉.ICP-AES法测定茶叶、茶水中的矿物质和微量元素[J].光谱学与光谱分析,2002,22(2):304-306
[4]K Kuan-Li,W Meng-Shih,C Chun-Te,et al.Comparative studies on the Hypolidemic and growth suppressive effects of oolong,black,pu-erh and green Tea leaves in rats[J].Journal of Agricultural&Food Chemistry,2005,53(2):480-489
[5]宋鲁彬,黄建安,刘仲华,等.中国黑茶对FXR及LXR核受体的作用[J].茶叶科学,2009,29(2):131-135
[6]吕海鹏,谷记平,林智,等.普洱茶的化学成分及生物活性研究进展[J].茶叶科学,2007,27(1):8-18
[7]陶华君.茶叶与人体健康[J].中国食物与营养,2004(2):45-48
[8]王汉生.茶与人体健康[J].广东茶业,1995(2):21-28
[9]吴艳艳,侯冬岩,回瑞华,等.高效液相色谱法测定铁观音茶叶和茶茎中的维生素C含量[J].鞍山师范学院学报,2012,14(6):22-25
[10]李立祥,罗志刚.安徽省茶树品种与茶叶氨基酸遗传差异的对应分析[J].生物数学学报,1997,12(4):366-371
[11]齐红革,尹华涛,廖振宇,等.ICP-MS法测定不同产地绿茶中矿物质和微量元素[J].食品研究与开发,2015,36(8):65-67
[12]许乾丽,孙向彤,李明炬,等.老鹰茶、虫茶的化学成分研究[J].贵州科学,2000(3):191-195
[13]郁建平.贵州苦丁茶植物资源及化学成分分析[J].植物资源与环境学报,1997(2):22-25
[14]龙成梅,杨鼎,孙成斌,等.都匀毛尖茶中铁、铜、锰的测定[J].广州化工,2012,40(17):98-100
[15]范宝磊,张健.火焰原子吸收光谱法和原子荧光光谱法测定茶叶中的微量元素[J].光谱实室,2010,27(3):1008-1011
[16]陈丽珍,翟锐锐,李娟.海南白沙绿茶中维生素C含量的测定[J].广州化工2012,40(6):103-104
[17]付于.脑缺血再灌注损伤神经细胞非谷氨酸依赖性钙离子通道的研究进展[J].中西医结合心脑血管病杂志,2011,31(1):106-107
[18]程桂广,刘会灵,王煜丹,等.雀舌茶营养成分分析[J].营养学报,2010,32(2):201-202
[19]汤鸣绍.中国白茶的起源、品质成分与保健功效[J].福建茶叶,2015,37(2):45-50
[20]郭玮玮.精氨酸对肉仔鸡生长性能和免疫功能的影响及其机理研究[D].呼和浩特:内蒙古农业大学,2014
[21]中华人民共和国卫生部.GB/T 2762-2012食品安全国家标准食品中污染物限量[S].北京:中国标准出版社,2012
[22]中华人民共和国农业部.NY 659-2003茶叶中铬、镐、汞、砷及氟化物限量[S].北京:中国标准出版社,2003