食源性致病菌一直是我国食品安全的危害之一,如何有效控制食品中食源性致病菌的繁殖一直是研究热点。该研究以等离子体活性乳酸溶液(Plasma-Activated Lactic Acid,PALA)体积分数、活化时间以及反应时间的单因素实验为基础,以大肠埃希...食源性致病菌一直是我国食品安全的危害之一,如何有效控制食品中食源性致病菌的繁殖一直是研究热点。该研究以等离子体活性乳酸溶液(Plasma-Activated Lactic Acid,PALA)体积分数、活化时间以及反应时间的单因素实验为基础,以大肠埃希氏菌、沙门氏菌、金黄色葡萄球菌及单核增生李斯特菌等菌种为模型,菌落总数为响应值,研究PALA对4种食源性致病菌的影响。研究结果表明:在一定范围内,4种食源性致病菌的杀灭率均随PALA体积分数的升高、活化时间以及反应时间的延长而增大;采用活化120 s、体积分数为0.2%的PALA与4种食源性致病菌反应10 min,约可杀灭纯培养大肠埃希氏菌7.71 lg CFU/mL、沙门氏菌4.52 lg CFU/mL、金黄色葡萄球菌4.03 lg CFU/mL、单核增生李斯特菌3.90 lg CFU/mL。对4种纯培养食源性致病菌的杀灭率达99.9%以上(P<0.05),可杀灭3.9个对数值以上菌落总数的致病菌。综上所述,PALA可快速、高效杀灭常见食源性致病菌。展开更多
The development of rural tourism is one of important measures for the protection and inheritance of agricultural cultural heritage,while agricultural cultural heritage also becomes decisive factor of promoting rural t...The development of rural tourism is one of important measures for the protection and inheritance of agricultural cultural heritage,while agricultural cultural heritage also becomes decisive factor of promoting rural tourism development.They complement each other and develop together.In this paper,Hakka terrace of Chongyi,Ganzhou City,Jiangxi Province is taken as the research object,and its cultural heritage is interpreted and classified.It could be roughly divided into four aspects:farming belief and cultural legend,processing techniques of agricultural by-products,traditional farming technology experience,traditional eco-agricultural system and landscape.Based on the four aspects,combining local current tourism resource use situation,four kinds of rural tourism development models based on rice cultivation terrace culture heritage are summarized.展开更多
Based on the research on the relevant background and significance of the sustainable development of agricultural cultural heritage,taking Wannian rice cultivation culture system as an example and its natural environme...Based on the research on the relevant background and significance of the sustainable development of agricultural cultural heritage,taking Wannian rice cultivation culture system as an example and its natural environment,traditional agricultural production activities,unique cultural patterns,socio-economic development and protection,and protection and development approach as the basis for evaluation,an evaluation index system for the sustainable development of Wannian rice cultivation culture system was constructed.Each index was quantified and standardized,and their weight was determined through the analytic hierarchy process to obtain the comprehensive evaluation value of the sustainable development of Wannian rice cultivation culture system.The evaluation value was analyzed to propose the main issues in the sustainable development of Wannian rice cultivation culture.展开更多
文摘食源性致病菌一直是我国食品安全的危害之一,如何有效控制食品中食源性致病菌的繁殖一直是研究热点。该研究以等离子体活性乳酸溶液(Plasma-Activated Lactic Acid,PALA)体积分数、活化时间以及反应时间的单因素实验为基础,以大肠埃希氏菌、沙门氏菌、金黄色葡萄球菌及单核增生李斯特菌等菌种为模型,菌落总数为响应值,研究PALA对4种食源性致病菌的影响。研究结果表明:在一定范围内,4种食源性致病菌的杀灭率均随PALA体积分数的升高、活化时间以及反应时间的延长而增大;采用活化120 s、体积分数为0.2%的PALA与4种食源性致病菌反应10 min,约可杀灭纯培养大肠埃希氏菌7.71 lg CFU/mL、沙门氏菌4.52 lg CFU/mL、金黄色葡萄球菌4.03 lg CFU/mL、单核增生李斯特菌3.90 lg CFU/mL。对4种纯培养食源性致病菌的杀灭率达99.9%以上(P<0.05),可杀灭3.9个对数值以上菌落总数的致病菌。综上所述,PALA可快速、高效杀灭常见食源性致病菌。
基金Sponsored by Humanities and Social Sciences Research Project of Jiangxi Colleges and Universities(JD1447)Jiangxi Art Science Planning Project(YG2013137)Nanchang Social Science Planning Project(JJ201206)
文摘The development of rural tourism is one of important measures for the protection and inheritance of agricultural cultural heritage,while agricultural cultural heritage also becomes decisive factor of promoting rural tourism development.They complement each other and develop together.In this paper,Hakka terrace of Chongyi,Ganzhou City,Jiangxi Province is taken as the research object,and its cultural heritage is interpreted and classified.It could be roughly divided into four aspects:farming belief and cultural legend,processing techniques of agricultural by-products,traditional farming technology experience,traditional eco-agricultural system and landscape.Based on the four aspects,combining local current tourism resource use situation,four kinds of rural tourism development models based on rice cultivation terrace culture heritage are summarized.
基金Sponsored by Social Science Planning Project of Jiangxi Province(19YS06)Science and Technology Project of Education Department of Jiangxi Province(GJJ190196)+1 种基金Basic Education Research Project of Jiangxi Province(SZUNDZH2020-1138)Culture and Art Science Planning Project of Jiangxi Province(YG2021134)。
文摘Based on the research on the relevant background and significance of the sustainable development of agricultural cultural heritage,taking Wannian rice cultivation culture system as an example and its natural environment,traditional agricultural production activities,unique cultural patterns,socio-economic development and protection,and protection and development approach as the basis for evaluation,an evaluation index system for the sustainable development of Wannian rice cultivation culture system was constructed.Each index was quantified and standardized,and their weight was determined through the analytic hierarchy process to obtain the comprehensive evaluation value of the sustainable development of Wannian rice cultivation culture system.The evaluation value was analyzed to propose the main issues in the sustainable development of Wannian rice cultivation culture.
