Processing of water-soluble reducing sugar from extracted green tea residue by different degradation methods

Authors

KONG Yingying, Key Lab of Tea Science of Ministry of Education, Changsha, Hunan 410128, China; National Research Center of Engineering Technology for Utilization of Botanical Functional Ingredients, Changsha, Hunan 410128, China
LIU An, Key Lab of Tea Science of Ministry of Education, Changsha, Hunan 410128, China; National Research Center of Engineering Technology for Utilization of Botanical Functional Ingredients, Changsha, Hunan 410128, China
XU Wei, Key Lab of Tea Science of Ministry of Education, Changsha, Hunan 410128, China; National Research Center of Engineering Technology for Utilization of Botanical Functional Ingredients, Changsha, Hunan 410128, China
ZHANG Tuo, Key Lab of Tea Science of Ministry of Education, Changsha, Hunan 410128, China; National Research Center of Engineering Technology for Utilization of Botanical Functional Ingredients, Changsha, Hunan 410128, China
GONG Zhihua, Key Lab of Tea Science of Ministry of Education, Changsha, Hunan 410128, China; National Research Center of Engineering Technology for Utilization of Botanical Functional Ingredients, Changsha, Hunan 410128, China
XIAO Wenjun, Key Lab of Tea Science of Ministry of Education, Changsha, Hunan 410128, China; National Research Center of Engineering Technology for Utilization of Botanical Functional Ingredients, Changsha, Hunan 410128, China; Hunan Collaborative Innovation Center fo

Abstract

In order to further develop and utilize the polysaccharides in tea residue, taking tea residue after green tea water extraction as raw material, and the yield of water-soluble reducing sugar was taken as the index, the effects of irradiation degradation + alkali degradation + acid degradation on green tea residue preparation of water-soluble reducing sugars were discussed on the basis of optimization of radiation degradation, alkali degradation and acid degradation for preparation of water-soluble reducing sugars. Results: The best degradation rate of irradiation was 1 200 kGy with a yield of 4.13%. The best combination of alkali degradation was 0.05 mol/L sodium hydroxide at 90 ℃ for 1 h, the yield was 2.08%. The optimal process of acid degradation was 9% nitric acid at 100 ℃ for 2 h, and the yield was 10.57%. The best combination of radiation degradation + alkali degradation + acid degradation was that the tea residue was firstly irradiated by irradiation at 1 000 kGy, degraded by the best combination of alkali degradation, and then degraded by the best combination of acid degradation, with the water-reducing sugar yield of 13.18%. The combination of degraded water-soluble reducing sugar has the highest yield.

Publication Date

6-28-2018

First Page

169

Last Page

173

DOI

10.13652/j.issn.1003-5788.2018.06.034

Recommended Citation

Yingying, KONG; An, LIU; Wei, XU; Tuo, ZHANG; Zhihua, GONG; and Wenjun, XIAO (2018) "Processing of water-soluble reducing sugar from extracted green tea residue by different degradation methods," Food and Machinery: Vol. 34: Iss. 6, Article 34.
DOI: 10.13652/j.issn.1003-5788.2018.06.034
Available at: https://www.ifoodmm.cn/journal/vol34/iss6/34

References

[1] 思雨. 提高茶叶深加工比例功能性产品将是未来目标[J]. 中国食品, 2017(1): 92-95.
[2] 尹军峰, 傅尚文, 刘新, 等. 我国茶叶深加工产品的安全问题及对策[J]. 食品科学技术学报, 2014, 32(2): 20-23.
[3] 叶倩, 梁月荣, 陆建良, 等. 茶渣综合利用研究进展[J]. 茶叶, 2005, 31(3): 150-153.
[4] 谢枫, 金玲莉, 涂娟, 等. 茶废弃物综合利用研究进展[J]. 中国农学通报, 2015, 31(1): 140-145.
[5] 殷福珊. 挑战纤维素的利用[J]. 日用化学品科学, 2009, 32(1): 24-26.
[6] 张春艳, 谭兴和, 熊兴耀, 等. 油菜秸秆Co⁶⁰-γ辐照降解产物分析[J]. 湖南农业大学学报: 自然科学版, 2017, 43(1): 92-97.
[7] 郑明霞, 李来庆, 郑明月, 等. 碱处理对玉米秸秆纤维素结构的影响[J]. 环境科学与技术, 2012, 35(6): 27-31.
[8] 孙万里. 稻草秸秆的预处理及生产乙醇的研究[D]. 无锡: 江南大学, 2010: 13-27.
[9] 彭姿, 谭兴和, 熊兴耀, 等. 稀硫酸处理促进辐照芒草木质纤维素酶解糖化条件的优化[J]. 安徽农业科学, 2013, 41(31): 12 455-12 457, 12 461.
[10] 于鹏亮. 茶渣中蛋白质和多糖的综合提取及其分离纯化[D]. 合肥: 安徽农业大学, 2013: 25-37.
[11] 冯继华, 曾静芬, 陈春茂, 等. 应用Van Soest法和常规法测定纤维素及木质素的比较[J]. 西南民族学院学报, 1994, 20(1): 55-56.
[12] 赵凯, 许鹏举, 谷广烨. 3,5-二硝基水杨酸比色法测定还原糖含量的研究[J]. 食品科学, 2008, 29(8): 534-536.
[13] 杨革生, 邵惠丽, 胡学超. 辐照对竹纤维素聚合度及其结晶结构的影响[J]. 功能高分子学报, 2007, 19-20(2): 143-147.
[14] 张帅. 新型溶剂制备再生纤维素纤维及其结构性能研究[D]. 上海: 东华大学, 2010: 45-64.
[15] 陆晨, 张士康, 朱科学, 等. 碱提酸沉法提取茶叶蛋白质的研究[J]. 现代食品科技, 2011, 27(6): 673-677.
[16] RUAN Dong, ZHANG Li-na, LU Ang, et al. A rapid process for producing cellulose multi-filament fibers from a NaOH/thiourea solvent system[J]. Macromolecular Rapid Communications: Publishing the Newsletters of the European Polymer Federation, 2006, 17: 1 495-1 500.
[17] 李秀艳, 谢瑞琪, 张玉芳. 纤维素水解研究进展[J]. 北京服装学院学报: 自然科学版, 2012, 32(2): 70-78.