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茶叶科学 ›› 2009, Vol. 29 ›› Issue (6): 407-411.doi: 10.13305/j.cnki.jts.2009.6.01

• •    下一篇

茶叶水溶性膳食纤维的制备及其理化特性的研究

艾仄宜, 张洁, 杨晓萍*, 韩雪萍, 阿丽亚   

  1. 华中农业大学园艺林学学院,湖北 武汉 430070
  • 收稿日期:2009-02-07 修回日期:2009-07-10 发布日期:2019-09-09
  • 通讯作者: * yangxp@mail.hzau.edu.cn
  • 作者简介:艾仄宜(1987— ),女,湖北武汉人,本科在读。

Study on Preparation and Physicochemical Properties of Water-soluble Dietary Fiber from Tea

AI Ze-yi, ZHANG Jie, YANG Xiao-ping*, HAN Xue-ping, A Li-ya   

  1. College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan 430070, China
  • Received:2009-02-07 Revised:2009-07-10 Published:2019-09-09

摘要: 对酶法提物茶叶水溶性膳食纤维(SDF)的工艺及其理化性能进行研究,探讨了料液比、pH值、酶添加量、温度及时间对SDF提取率的影响。在单因素试验基础上,通过L16(45)正交试验确定最佳提取工艺。结果表明:pH值对茶叶SDF提取的影响最大,其次依次为温度、酶添加量、时间、料液比;茶叶SDF提取的最佳工艺为:温度60℃、酶添加量0.08 g/g、pH值9.0、时间2.0 h、料液比1∶20,提取率达53.72%,所得SDF具有较好持水力、膨胀力和持油力,对胆固醇、胆酸钠也有一定吸附作用,为一种优质膳食纤维。

关键词: 茶叶, 水溶性膳食纤维, 酶法, 提取, 理化特性

Abstract: The extraction technology and properties of water soluble dietary fiber (SDF) from tea through enzymatic method were studied. The results showed that the effect of pH was the most important, followed by temperature, enzyme dosage, time and ratio of solid-liquid. Through orthogonal test, the optimum conditions of extraction were obtained on the basis of single factor test, as follows: enzyme dosage 0.08 g/g, pH9.0, time 2 h, temperature 60℃ and ratio of solid-liquid 1∶20. The yield of SDF is 53.72%. SDF from tea is a superior dietary fiber with high capacities of water holding, swelling and oil holding, as well as good absorption on cholesterol and sodium cholate.

Key words: tea, water-soluble dietary fiber, enzymatic method, extraction, physicochemical properties

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