Difference Quality Characteristics of Xihu Longjing Tea with Different Processing Technology

CUI Hongchun; ZHANG Jianyong; AO Cun; HUANG Haitao; ZHENG Xuxia; ZHAO Yun; SHI Daliang; YU Jizhong

doi:10.13386/j.issn1002-0306.2020070165

Volume 42 Issue 13

Jun. 2021

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Science and Technology of Food Industry > 2021 > 42(13): 268-273. > DOI: 10.13386/j.issn1002-0306.2020070165

CUI Hongchun, ZHANG Jianyong, AO Cun, et al. Difference Quality Characteristics of Xihu Longjing Tea with Different Processing Technology [J]. Science and Technology of Food Industry, 2021, 42(13): 268−273. (in Chinese with English abstract). doi: 10.13386/j.issn1002-0306.2020070165.

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Difference Quality Characteristics of Xihu Longjing Tea with Different Processing Technology

1.
Tea Research Institute, Hangzhou Academy of Agriculture, Hangzhou 310024, China
2.
Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou 310008, China

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Received Date: July 13, 2020
Available Online: May 10, 2021

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Abstract

Abstract

In order to clarify the differences of quality characteristics of Xihu Longjing tea with different processing technologies, four processing methods were used to process the Xihu Longjing tea, including the method of processing tea with machines in all processes, the method of handmade processing after one fixation by machine, the method of handmade processing after two fixation by machine, and the method of handmade tea for all processes. The sensory quality and the content of physical and chemical components were compared and analyzed, and the relationship between color difference and soup color was analyzed. The results showed that the shape of the tea made by handmade processing after one fixation by machine and handcraft processing after two fixation by machine was better than that of handmade tea for all processes. The taste and aroma of the Xihu Longjing tea by the handmade processing after one fixation by machine was similar to that of the handmade tea for all processes, and it was better than that of the processing tea with machines in all processes. There were no significant differences in polyphenol content, caffeine content, free amino acid content and L value (P>0.05) among four processing methods, but significant differences in a value and b value (P<0.05). The method of handmade processing after one fixation by machine was conducive to the retention of key flavor chemicals such as EGCG, GCG, glutamine and theanine in Xihu Longjing tea. The taste and aroma quality of the Xihu Longjing tea was significantly improved by the innovative technology of handmade processing after one fixation by machine, which was equivalent to the tea by handmade tea for all processes. It can provide technical support and theoretical basis for the quality improvement of Xihu Longjing tea.
- Xihu Longjing tea,
- processing technology,
- quality,
- chemical composition,
- processing tea with machines,
- handmade

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[1]	龚淑英, 毛租法, 陆德彪, 等. 加工工艺对春季(高档)龙井茶品质的影响[J]. 中国茶叶,2011,33(12):8−11. doi: 10.3969/j.issn.1000-3150.2011.12.004
[2]	沈红. 不同加工方式对高档西湖龙井茶品质的影响-从感官审评结果中比较[J]. 中国茶叶加工,2010(3):33−35.
[3]	王辉, 龚淑英, 魏明香, 等. 茶树品种和加工工艺对长兴紫笋茶品质的影响[J]. 中国茶叶,2014,36(3):18−21. doi: 10.3969/j.issn.1000-3150.2014.03.007
[4]	Chuang Zhang, Claire Li-Chieh Suen, Chao Yang, et al. Antioxidant capacity and major polyphenol composition of teas as affected by geographical location, plantation elevation and leaf grade[J]. Food Chemistry,2018,244:109−119. doi: 10.1016/j.foodchem.2017.09.126
[5]	Liyuan Wang, Kang Wei, Hao Cheng, et al. Geographical tracing of Xihu Longjing tea using high performance liquid chromatography[J]. Food Chemistry,2014,146:98−103. doi: 10.1016/j.foodchem.2013.09.043
[6]	金晶, 邵宗清, 张兰美. 不同杀青方式龙井茶自动化连续生产线加工工艺探讨[J]. 茶叶,2017,43(3):157−160. doi: 10.3969/j.issn.0577-8921.2017.03.006
[7]	夏建仁, 徐力垣, 杨青, 等. 浅析龙井茶机制技术[J]. 中国茶叶加工,2016(1):20−23.
[8]	蒋炳芳. 龙井茶半连续化加工新技术的研究与应用[J]. 上海农业科技,2016(2):21, 65.
[9]	师大亮, 陆德彪, 金晶. 龙井茶小规模加工模式与技术集成[J]. 中国茶叶,2015,37(5):21−22. doi: 10.3969/j.issn.1000-3150.2015.05.011
[10]	方晨, 邹新武. 浅析西湖龙井茶品质形成的原因[J]. 中国茶叶加工,2011(3):22, 27−30.
[11]	王东波. 徐杰, 茹利军, 等. 龙井茶品质缺陷形成原因及改进方法[J]中国茶叶, 2019, 41(3): 46-48.
[12]	师大亮, 余继忠, 刘晓红, 等. 不同工艺、不同辉锅方式对龙井茶品质的影响研究[J]. 西南师范大学学报(自然科学版),2010,35(5):173−177.
[13]	康孟利, 薛旭初, 凌建刚, 等. 夏秋茶制作龙井茶的工艺参数优化[J]. 2007, 28(12): 145-147.
[14]	葛贻韬, 盛林锋, 高珑瀚, 等. 基于叶温监测的龙井茶机制过程关键控制点的识别[J]. 浙江农业科学,2019,60(3):425−426, 436.
[15]	韩延超, 陈杭君, 郜海燕, 等. 冲泡条件对西湖龙井抗氧化特性的影响及相关性分析[J]. 中国食品学报,2018,18(10):128−136.
[16]	尹军峰, 许勇泉, 陈根生, 等. 不同类型饮用水对西湖龙井茶风味及主要品质成分的影响[J]. 中国茶叶,2018,5:21−26. doi: 10.3969/j.issn.1000-3150.2018.04.005
[17]	Chen Q, Zhao J, Guo Z, et al. Determination of caffeine content and main catechins contents in green tea (Camellia sinensis L.) using taste sensor tech nique and multivariate calibration[J]. Journal of Food Composition and Analysis,2010,23(4):353−358. doi: 10.1016/j.jfca.2009.12.010
[18]	Chen Q, Zhao J, Vittayapadung S. Identification of the green tea grade level using electronic tongue and pattern recognition[J]. Food Research International,2008,41(5):500−504. doi: 10.1016/j.foodres.2008.03.005
[19]	Wang J, Wei Z. The classification and prediction of green teas by elector chemical response data extraction and fusion approaches based on the combination of e-nose and e-tongue[J]. RSC Advances,2015,5(129):106959–106970.
[20]	Xu L, Yan S, Ye Z, et al. Combining electronic tongue array and chemometrics for discriminating the specific geographical origins of green tea[J]. Journal of Analytical Methods in Chemistry,2013,2013:1−5.
[21]	Yu P, Yeo A S L, Low M Y, et al. Identifying key non-volatile com pounds in ready-to-drink green tea and their impact on taste profile[J]. Food Chemistry,2014,155:9−16. doi: 10.1016/j.foodchem.2014.01.046
[22]	Ma G, Zhang Y, Zhang J, et al. Determining the geographical origin of Chinese green tea by linear discriminant analysis of trace metals and rare earth elements: taking Dongting Biluochun as an example[J]. Food Control,2016,59:714−720. doi: 10.1016/j.foodcont.2015.06.037
[23]	Heyuan Jiang, Takuya Shii, Yosuke Matsuo, et al. A new catechin oxidation product and polymeric polyphenol of post-fermented tea[J]. Food Chemisty,2011,129(3):276−281.
[24]	Zhao M, Ma Y, Dai L L, et al. A high-performance liquid chromatographic method for simultaneous determination of 21 free amino acids in tea[J]. Food Analytical Methods,2013,6(1):69−75. doi: 10.1007/s12161-012-9408-4

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