Green Tea Fixation by Simultaneous Microwave and Hot Air Treatment

Abstract

Abstract: The fixation of green tea by simultaneous microwave and hot air treatment was optimized based on PPO activity and water loss rate. After 60 s of treatment at 1200 W microwave power and 50 ℃ hot air temperature, 20 g of tea leaves almost completely lost PPO activity, became yellowish green, and showed naturally curly shape, soft texture and outstanding aroma thereby facilitating subsequent rolling and shaping. Therefore, the quality requirements of good fixation were met.

Key words: green tea, simultaneous microwave and hot air treatment, fixation, polyphenol oxidase (PPO), water loss rate

[1]	ZHANG Mingming, YIN Hongxu, DENG Yuliang, YAO Yuefeng, JIANG Yongwen, HUA Jinjie, YUAN Haibo, YANG Yanqin. Analysis of Key Odorants Responsible for Different Chestnut-Like Aromas of Green Teas Based on Headspace Solid-Phase Microextraction Coupled with Comprehensive Two-Dimensional Gas Chromatography Time-of-Flight Mass Spectrometry and Odor Activity Value [J]. FOOD SCIENCE, 2020, 41(2): 244-252.
[2]	ZHANG Mingming, JIANG Yongwen, HUA Jinjie, WANG Jinjin, YUAN Haibo, YANG Yanqin. Effect of Drying Methods on Chestnut-Like Aroma of Green Tea [J]. FOOD SCIENCE, 2020, 41(15): 115-123.
[3]	YE Qingqing, LIU Panpan, WANG Fang, WANG Jieqiong, XU Yongquan, YIN Junfeng, ZENG Liang. Differences in Taste Characteristics of Sugar-Free Green Tea Beverages from Different Producing Areas [J]. FOOD SCIENCE, 2019, 40(19): 23-31.
[4]	XU Wei, PENG Yingqi, ZHANG Tuo, KONG Yingying, XIAO Wenjun. Dynamic Change of Major Taste Substances during Green Tea Processing and Its Impact on Green Tea Quality [J]. FOOD SCIENCE, 2019, 40(11): 36-41.
[5]	MA Linlong, LIU Yanli, CAO Dan, GONG Ziming, LIU Panpan, JIN Xiaofang. Analysis of Aroma Components of Green Teas Made from Leaves of High-Quality Tea Strains in Hubei Province [J]. FOOD SCIENCE, 2019, 40(10): 251-256.
[6]	ZHENG Li, HOU Caiyun, REN Fazheng. Anti-obesity Efficacy of Extracts from Several Kinds of Tea in High-Fat Diet-Induced Obese Mice [J]. FOOD SCIENCE, 2018, 39(17): 192-199.
[7]	KANG Suyoung ZHU Yin ZHENG Xinqiang, LIANG Yuerong, LIN Zhi. Multivariate Statistical Analysis of Volatiles Compounds in Green Teas from Different Harvesting Seasons [J]. FOOD SCIENCE, 2018, 39(14): 268-275.
[8]	WU Bengang, XIAO Mengchao, LIU Meijuan, PAN Zhongli, MA Haile. Fixation and Drying of Green Tea Using Sequential Catalytic Infrared Heating and Hot Air Drying [J]. FOOD SCIENCE, 2017, 38(9): 126-132.
[9]	WANG Bin, LIU Qingru, YE Xingqian, ZHANG Xiaowei, LIU Jing, WANG Hui. Effect of Processing Conditions on Acrylamide Formation in Green Tea [J]. FOOD SCIENCE, 2017, 38(8): 220-224.
[10]	ZHOU Tianshan, MI Xiaoling, WANG Yancheng, YU Youben, LI Shilin, QI Yugang. Effect of Different Processing Techniques on the Quality of ‘Shaancha 1’ Green Tea [J]. FOOD SCIENCE, 2017, 38(3): 148-154.
[11]	WANG Qi, ZHAO Guifu, ZHANG Xuzhou, ZHAO Lei, XIA Tao, ZHANG Xinfu. Effects of Four Different Tea Varieties and Harvesting Seasons on Aroma Characteristics of Green Tea [J]. FOOD SCIENCE, 2016, 37(20): 102-107.
[12]	WANG Shuhui, LONG Limei, SONG Shasha, CAO Xueli. Analysis of Characteristic Flavor Components and Cultivar Discrimination of Three Varieties of Famous Green Tea [J]. FOOD SCIENCE, 2016, 37(2): 128-131.
[13]	LIU Panpan, LIU Xiaohui, LUO Longxin, LONG Dan, HE Qunxian. Comparative Analysis of Aroma Characteristics of Green Tea Beverages from Different Regions [J]. FOOD SCIENCE, 2016, 37(2): 147-152.
[14]	WANG Wei, LIN Nan, ZHOU Xiaojing, LE Shengfeng, DU Ning, ZHANG Jinghua. Development of EGCG Reference Material [J]. FOOD SCIENCE, 2016, 37(14): 110-115.
[15]	MA Mengjun1, CHANG Rui1, LUO Liyong1,2,ZENG Liang1,2,*. Changes in Biochemical Components and Physical Characteristics of Fragrant Green Tea Infusion during Sterilization and Storage [J]. FOOD SCIENCE, 2015, 36(6): 109-113.

Green Tea Fixation by Simultaneous Microwave and Hot Air Treatment

RichHTML

PDF (PC)

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 15

Recommended Articles

Metrics

Comments