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中国精品科技期刊2020
杨腊, 朱美蓉, 黄继庄, 覃民扬, 庄席福, 房玉林. 刺葡萄叶茶的制备与品质分析[J]. 食品工业科技, 2019, 40(14): 254-259. DOI: 10.13386/j.issn1002-0306.2019.14.041
引用本文: 杨腊, 朱美蓉, 黄继庄, 覃民扬, 庄席福, 房玉林. 刺葡萄叶茶的制备与品质分析[J]. 食品工业科技, 2019, 40(14): 254-259. DOI: 10.13386/j.issn1002-0306.2019.14.041
YANG La, ZHU Mei-rong, HUANG Ji-zhuang, QIN Min-yang, ZHUANG Xi-fu, FANG Yu-lin. Preparation and Quality Analysis of Grape Leaf Tea of Vitis davidii Foëx[J]. Science and Technology of Food Industry, 2019, 40(14): 254-259. DOI: 10.13386/j.issn1002-0306.2019.14.041
Citation: YANG La, ZHU Mei-rong, HUANG Ji-zhuang, QIN Min-yang, ZHUANG Xi-fu, FANG Yu-lin. Preparation and Quality Analysis of Grape Leaf Tea of Vitis davidii Foëx[J]. Science and Technology of Food Industry, 2019, 40(14): 254-259. DOI: 10.13386/j.issn1002-0306.2019.14.041

刺葡萄叶茶的制备与品质分析

Preparation and Quality Analysis of Grape Leaf Tea of Vitis davidii Foëx

  • 摘要: 以江西君子谷酒庄野生资源圃刺葡萄叶片为试验材料,以三种刺葡萄叶片(包括嫩尖C1、黄绿色幼叶C2、红褐色幼叶C3)制成的叶茶为研究对象,通过感官评定,酚类物质、矿物质元素比较分析、为刺葡萄叶片加工利用和刺葡萄叶茶品质改进提供基础。结果发现,三种刺葡萄叶茶C1、C2、C3的感官评定有明显差异,尤其在叶茶的外形、滋味、汤色上。三种叶茶的酚类物质(总酚、总类黄酮、总黄烷醇、总花色苷)的含量有显著性差异(p<0.05)。C3的酚类物质含量相对较高,C2、C3的总酸和还原性糖无显著性差异。C1中检测到9种单体酚;C2中检测到12种单体酚,种类最多;C3检测到10种单体酚。三种叶茶的矿物质元素含量均是Ca的浓度最高、Cu的浓度最低,C3的五种矿物质元素含量相对最高。综合看来,C3刺葡萄叶茶的品质最优,因此红褐色幼叶野更具有叶茶开发的利用价值。

     

    Abstract: In order to develop resources for the use of grape leaves, this study compared and analyzed sensory characteristic, phenolic compounds and mineral elements contents of leaf made from three different grape leaves of Vitis davidii Foëx (C1 tender leaves, C2 yellow-green young leaves and C3 reddish-brown young leaves) in the wild resources of Jiangxi Gentle Valley Winery. The results showed that there were significant differences in sensory evaluation of C1, C2 and C3, especially in the shape, taste and color of tea soup. The contents of phenolic compounds (total phenolic, total flavonoids, total flavanols and total anthocyanin) in three kinds of leaf tea had significantly difference (p<0.05). The contents of phenolic compounds in C3 was higher than C1 and C2, but there was no significant difference in total acid and reducing sugar between C2 and C3.Nine, twelve, ten kinds of individual phenotic were deteccted from C1, C2 and C3, respectively. Ca contents was the highest among mineral elements, wihle Cu was the lowest. The contents of the five mineral elements of C3 were the highest in three kinds of leaf tea. All the results showed that the quality of C3 was the best, which would be more valuable.

     

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