摘要
以16种桑树品种雄花茶为研究对象,测定分析桑树雄花茶的水浸出物、可溶性糖、游离氨基酸、总黄酮、总多酚和1-脱氧野尻霉素(1-deoxynojirimycin,DNJ)含量以及抗氧化活性,并通过隶属函数法综合评价桑树雄花茶的营养价值。结果表明,桑树雄花茶的水浸出物含量在40%左右;在16个品种间,5个营养成分与活性成分指标存在一定差异,变异系数均大于30%;抗氧化活性也存在一定差异,其中,雄花茶铁还原氧化能力品种间差异较大,变异系数大于30%。营养价值综合得分由高到低依次为那兰1号、农桑14号、农桑12号、桂5×A9、恭同7号、花菜桑、鲁诱6号、长2、旅桑1号、泉桑1号、长1、桂7626、华交8号、466、K2和果选9号。综合各桑树雄花茶的营养成分含量、活性成分含量及抗氧化能力,筛选桑树雄花茶制备用品种宜从那兰1号、农桑14号、农桑12号及桂5×A9等营养价值综合得分较高品种结合产量统计与感官评价进行下一步选择。
The contents of water extract,soluble sugars,free amino acids,total flavonoids,total polyphenols,and 1-deoxynojirimycin(DNJ),as well as the antioxidant activity of 16 types of staminate flower tea of mulberry were determined and analyzed.The nutritional value of mulberry staminate flower was comprehensively evaluated by the method of membership function.The results showed that the contents of water extracts were around 40%.There were some differences between 5 indexes of nutrients and active components of 16 staminate flower teas,all with coefficients of variation greater than 30%.There were also some differences in antioxidant activity between these varieties,especially in ferric ion reduction and antioxidant ability,which had a relatively greater coefficient of variation over 30%.The comprehensive scores of nutritional values from high to low were Nalan 1,Nongsang 14,Nongsang 12,Gui 5×A9,Gongtong 7,Huacai Sang,Luyou 6,Chang 2,Lyusang 1,Quansang 1,Chang 1,Gui 7626,Huajiao 8,466,K2 and Guoxuan 9.Based on the comprehensive analysis of the nutrient content,active component content and antioxidant capacity of all the mulberry staminate flower tea,it is recommended that mulberry varieties with higher comprehensive scores of nutritional values such as Nalan 1,Nongsang 14,Nongsang 12 and Gui 5×A9 should be selected for the preparation of staminate flower tea and for further selection in combination with yield analysis and sensory evaluation.
作者
林天宝
柳丽萍
刘培刚
钱文春
魏佳
朱燕
刘岩
郭君鑫
许自龙
计东风
吕志强
Lin Tianbao;Liu Liping;Liu Peigang;Qian Wenchun;Wei Jia;Zhu Yan;Liu Yan;Guo Junxin;Xu Zilong;Ji Dongfeng;Lyu Zhiqiang(Institute of Sericulture and Tea,Zhejiang Academy of Agricultural Sciences,Hangzhou 310021,China;Huzhou Agricultural Science and Technology Development Center,Huzhou Zhejiang 313002,China;Huashui Junxin Family Farm,Dongyang Zhejiang 322102,China)
出处
《蚕业科学》
CAS
CSCD
北大核心
2023年第3期271-276,共6页
ACTA SERICOLOGICA SINICA
基金
浙江省农业新品种选育重大技术专项(2021C02072)
财政部和农业农村部国家现代农业产业技术体系项目
浙江省公益技术研究计划项目(LGN21C160013)
浙江省自然科学基金重点项目(LZ21C020001)。
关键词
桑树雄花茶
营养成分
活性成分
抗氧化活性
Staminate flower tea of mulberry
Nutrient
Active component
Antioxidant activity
作者简介
共同第一作者:林天宝(1982—),男,副研究员。E-mail:kissumbra@126.com;共同第一作者:柳丽萍(1968—),女,高级农艺师。E-mail:784751320@qq.com;通信作者:吕志强,研究员。E-mail:lvzq@mail.zaas.ac.cn。
