[ Objective] This study aimed to provide theoretical reference for the extraction of theabrownine from Liubao tea, determination of the biological activity, and development and utilization of theabrownine. [Method] Or...[ Objective] This study aimed to provide theoretical reference for the extraction of theabrownine from Liubao tea, determination of the biological activity, and development and utilization of theabrownine. [Method] Orthogonal experimental design was adopted to investigate the effects of solid-liquid ratio, extraction temperature, extraction duration, and extraction frequency on the yield of theabrownine extracted from Liubao tea. The extraction technology was optimized, and the antioxidant activity of theabrownine was analyzed. [ Result] The results showed that extraction frequency and extraction temperature had significant effects on the yield of theabrownine extracted from Liubao tea, while solid-liquid ratio and extraction duration had no significant effect. The optimal conditions for extracting theabrownine from Liubao tea were determined as follows ： solid-liquid ratio was 1 ： 30, extraction temperature was 100℃, extraction duration was 80 min, and extraction frequency was 4 times. Under these conditions, the yield of theabrownine reached 22.92%. Results of antioxidant activity determination showed that hydroxyl radical-scavenging activity of theabrownine was as high as 74%, and the scavenging effects was significantly higher than that of Vitamin C under low concentrations; nitroso-scavenging activity of theabrownine reached 73%, with no significant difference from that of Vitamin C; superoxide anion free radical-scavenging activity of theabrownine could be above 60%, which was lower than that of Vitamin C. [Condusion] Liubao tea contains abundant theabrownine that has relatively high antioxidant activity with good prospects in antioxidant application, which lays solid foundation for in-depth development of Liubao tea.展开更多
Liubao tea has a long history in Wuzhou,Guangxi.With its unique process and high quality,Liubao tea has become a favorite commodity of Wuzhou people.At present,Guangxi Wuzhou Ou Shu Liubao Tea Co.,Ltd.into the Nanning...Liubao tea has a long history in Wuzhou,Guangxi.With its unique process and high quality,Liubao tea has become a favorite commodity of Wuzhou people.At present,Guangxi Wuzhou Ou Shu Liubao Tea Co.,Ltd.into the Nanning market has many problems;based on the analysis and research of the Liubao tea market,a sample of customer satisfaction of Liubao tea marketing was analyzed according to the current situation of market research.Through comprehensive data analysis,it provides theoretical data and data support for Ou Shu Liubao Tea Co.,Ltd.and provides data reference for the development of Nanning marketing system.The research object selected in this study is the customers who have purchased Guangxi Wuzhou Ou Shu Liubao Tea in Nanning,China in 2020.Firstly,it studies and analyzes the factors that affect employee satisfaction,and comprehensively uses the relevant theories of consumer behavior(6W1H)and marketing mix(4P).Then,taking 350 consumers of Guangxi Wuzhou Ou Shu Liubao Tea in Nanning,China as the survey object,a set of scale to measure consumer satisfaction is designed.SPSS reliability and validity analysis,descriptive analysis,and other analysis methods were used to analyze the results,and hypothesis test was carried out.At the same time,on the basis of this conclusion,it provides reference for Guangxi Wuzhou Ou Shu Liubao Tea Co.,Ltd.and puts forward specific countermeasures and suggestions.展开更多
基金Supported by Scientific and Technological Development Project of Guangxi Zhuang Autonomous Region(GKN1348022-4)General Project of Scientific Research Fund of the Education Department of Guangxi Zhuang Autonomous Region(201012MS138)
文摘[ Objective] This study aimed to provide theoretical reference for the extraction of theabrownine from Liubao tea, determination of the biological activity, and development and utilization of theabrownine. [Method] Orthogonal experimental design was adopted to investigate the effects of solid-liquid ratio, extraction temperature, extraction duration, and extraction frequency on the yield of theabrownine extracted from Liubao tea. The extraction technology was optimized, and the antioxidant activity of theabrownine was analyzed. [ Result] The results showed that extraction frequency and extraction temperature had significant effects on the yield of theabrownine extracted from Liubao tea, while solid-liquid ratio and extraction duration had no significant effect. The optimal conditions for extracting theabrownine from Liubao tea were determined as follows ： solid-liquid ratio was 1 ： 30, extraction temperature was 100℃, extraction duration was 80 min, and extraction frequency was 4 times. Under these conditions, the yield of theabrownine reached 22.92%. Results of antioxidant activity determination showed that hydroxyl radical-scavenging activity of theabrownine was as high as 74%, and the scavenging effects was significantly higher than that of Vitamin C under low concentrations; nitroso-scavenging activity of theabrownine reached 73%, with no significant difference from that of Vitamin C; superoxide anion free radical-scavenging activity of theabrownine could be above 60%, which was lower than that of Vitamin C. [Condusion] Liubao tea contains abundant theabrownine that has relatively high antioxidant activity with good prospects in antioxidant application, which lays solid foundation for in-depth development of Liubao tea.
文摘Liubao tea has a long history in Wuzhou,Guangxi.With its unique process and high quality,Liubao tea has become a favorite commodity of Wuzhou people.At present,Guangxi Wuzhou Ou Shu Liubao Tea Co.,Ltd.into the Nanning market has many problems;based on the analysis and research of the Liubao tea market,a sample of customer satisfaction of Liubao tea marketing was analyzed according to the current situation of market research.Through comprehensive data analysis,it provides theoretical data and data support for Ou Shu Liubao Tea Co.,Ltd.and provides data reference for the development of Nanning marketing system.The research object selected in this study is the customers who have purchased Guangxi Wuzhou Ou Shu Liubao Tea in Nanning,China in 2020.Firstly,it studies and analyzes the factors that affect employee satisfaction,and comprehensively uses the relevant theories of consumer behavior(6W1H)and marketing mix(4P).Then,taking 350 consumers of Guangxi Wuzhou Ou Shu Liubao Tea in Nanning,China as the survey object,a set of scale to measure consumer satisfaction is designed.SPSS reliability and validity analysis,descriptive analysis,and other analysis methods were used to analyze the results,and hypothesis test was carried out.At the same time,on the basis of this conclusion,it provides reference for Guangxi Wuzhou Ou Shu Liubao Tea Co.,Ltd.and puts forward specific countermeasures and suggestions.
