The state has clearly put forward the development goal of people-oriented urbanization as the essential value in the National Plan on New Urbanization .The new urbanization puts forward new tasks and requirements for ...The state has clearly put forward the development goal of people-oriented urbanization as the essential value in the National Plan on New Urbanization .The new urbanization puts forward new tasks and requirements for the urban comprehensive planning.Under the current background of new urbanization,the traditional urban comprehensive planning can no longer meet the needs of current development in terms of preparation methods and contents[1].By sorting out the problems that arise in the process of urbanization development in Anxi County,this paper proposed the overall plan for Anxi County,Quanzhou,Fujian from the aspects of urban overall development strategy,urban positioning,new urbanization strategy,city scale,industrial system,spatial structure,and transportation system,with a view to providing a reference for the future development of Anxi County against the background of new urbanization.展开更多
Anxi Tieguanyin Tea Culture System,which highlights the planting and development of a semi-fermented,dark-green tea(or oolong tea),known as Tieguanyin^was added to the list of Globally Important Agricultural Heritage ...Anxi Tieguanyin Tea Culture System,which highlights the planting and development of a semi-fermented,dark-green tea(or oolong tea),known as Tieguanyin^was added to the list of Globally Important Agricultural Heritage Systems Progamme(GIAHS)by the United Nations Food and Agriculture Organization(FAO)in May 2022.In November that year,“traditional tea processing techniques and associated social practices in China”was added to the Representative List of the Intangible Cultural Heritage of Humanity by the United Nations Educational,Scientific and Cultural Organization(UNESCO).展开更多
Objectives:The purpose of this work was to evaluate the potential application of papers containing 1-methylcyclopropene(1-MCP)postharvest treatment for suppressing fruit decay of fresh Anxi persimmons and its possible...Objectives:The purpose of this work was to evaluate the potential application of papers containing 1-methylcyclopropene(1-MCP)postharvest treatment for suppressing fruit decay of fresh Anxi persimmons and its possible mechanism.Materials and methods:Anxi persimmon fruit were treated with papers containing 1-MCP at the dosage of 1.35μL/L and stored at(25±1)℃and 85 per cent relative humidity for 35 days.During storage,the fruit decay rate and lignin content were evaluated,and the content of total phenolics,the activities of phenylalanine ammonia lyase(PAL),polyphenol oxidase(PPO),peroxidase(POD),chitinase(CHI),and p-1,3-glucanase(GLU)were determined by spectrophotometry.Results:The 1-MCP-treated persimmons displayed a lower fruit decay rate,but higher contents of lignin and total phenolics,higher activities of PAL,PPO,POD,CHI,and GLU.Conclusions:The treatment with 1-MCP could inhibit the fruit decay of postharvest Anxi persimmons,which might be because 1-MCP enhanced fruit disease resistance by increasing the activities of disease resistance-associated enzymes and retaining higher contents of disease resistance-related substances in postharvest fresh Anxi persimmons.These findings indicate that papers containing 1-MCP at the dosage of 1.35μL/L have potential application in suppressing fruit decay and extending storage life of postharvest fresh Anxi persimmons.展开更多
Objectives:The aim of this work was to analyse the effects of 1-methylcyclopropene(1-MCP)treatment on the metabolisms of membrane lipids in postharvest Anxi persimmons during storage.Materials and methods:Anxi persimm...Objectives:The aim of this work was to analyse the effects of 1-methylcyclopropene(1-MCP)treatment on the metabolisms of membrane lipids in postharvest Anxi persimmons during storage.Materials and methods:Anxi persimmon(Diospyros kaki L.f.cv.Anxi)fruits were treated by paper containing 1-MCP with a concentration of 1.35μl/l.The cellular membrane permeability was analysed by the electric conductivity meter.The activities of lipoxygenase(LOX),phospholipase(PLD)and lipase were determined by spectrophotometry.The component and relative amounts of membrane fatty acids were determined using gas chromatograph(GC).Results:The 1-MCP-treated Anxi persimmons manifested a lower electrolyte leakage rate,lower LOX,PLD and lipase activities,higher levels of unsaturated fatty acids(USFAs),higher ratio of USFAs to saturated fatty acids(SFAs)(U/S),higher index of USFAs(IUFA),but lower levels of SFAs.Conclusions:The degradation and the metabolisms of membrane lipids could be suppressed by 1-MCP treatment,which might be accountable for the delaying softening of postharvest Anxi persimmons during storage.展开更多
本研究采用感官评价、高效液相色谱、高效液相色谱-串联质谱及顶空固相微萃取-气相色谱-质谱对不同香型安溪黄金桂中的主要风味品质成分进行分析。结果表明,安溪黄金桂具有“芬芳四溢、味醇甘美”的特征,不同香型安溪黄金桂的感官品质...本研究采用感官评价、高效液相色谱、高效液相色谱-串联质谱及顶空固相微萃取-气相色谱-质谱对不同香型安溪黄金桂中的主要风味品质成分进行分析。结果表明,安溪黄金桂具有“芬芳四溢、味醇甘美”的特征,不同香型安溪黄金桂的感官品质各具特色,清香型黄金桂花果香清鲜持久、滋味鲜醇甘爽;浓香型黄金桂焙香浓郁有甜感、滋味浓醇甘爽。两种香型黄金桂共筛选出61种差异香气物质。基于气味活性值分析及香气特征影响(aroma character impact,ACI)值进一步分析,发现清香型黄金桂的甲基庚烯酮、水杨酸甲酯、正己醛和异戊醇的ACI值显著高于浓香型,推测上述物质为呈现清香、花香和果香的关键特征香气物质;浓香型黄金桂中的脱氢芳樟醇、桃金娘烯醇、2,5-二甲基-3-乙基吡嗪、2-乙酰基-3-甲基吡嗪、柠檬烯和藏红花醛ACI值显著高于清香型,推测上述物质为呈现烘焙香、花香和果香的关键特征香气物质。本研究初步探明了不同香型安溪黄金桂品质化学特征及其香气形成的物质基础,可为阐明安溪黄金桂风味品质特征提供科学依据。展开更多
摘要The state has clearly put forward the development goal of people-oriented urbanization as the essential value in the National Plan on New Urbanization .The new urbanization puts forward new tasks and requirements for the urban comprehensive planning.Under the current background of new urbanization,the traditional urban comprehensive planning can no longer meet the needs of current development in terms of preparation methods and contents[1].By sorting out the problems that arise in the process of urbanization development in Anxi County,this paper proposed the overall plan for Anxi County,Quanzhou,Fujian from the aspects of urban overall development strategy,urban positioning,new urbanization strategy,city scale,industrial system,spatial structure,and transportation system,with a view to providing a reference for the future development of Anxi County against the background of new urbanization.
摘要Anxi Tieguanyin Tea Culture System,which highlights the planting and development of a semi-fermented,dark-green tea(or oolong tea),known as Tieguanyin^was added to the list of Globally Important Agricultural Heritage Systems Progamme(GIAHS)by the United Nations Food and Agriculture Organization(FAO)in May 2022.In November that year,“traditional tea processing techniques and associated social practices in China”was added to the Representative List of the Intangible Cultural Heritage of Humanity by the United Nations Educational,Scientific and Cultural Organization(UNESCO).
基金funded by the Science and Technology Project of Finance Department of Fujian Province,China(KLe16002A,KLe16H01A).
摘要Objectives:The purpose of this work was to evaluate the potential application of papers containing 1-methylcyclopropene(1-MCP)postharvest treatment for suppressing fruit decay of fresh Anxi persimmons and its possible mechanism.Materials and methods:Anxi persimmon fruit were treated with papers containing 1-MCP at the dosage of 1.35μL/L and stored at(25±1)℃and 85 per cent relative humidity for 35 days.During storage,the fruit decay rate and lignin content were evaluated,and the content of total phenolics,the activities of phenylalanine ammonia lyase(PAL),polyphenol oxidase(PPO),peroxidase(POD),chitinase(CHI),and p-1,3-glucanase(GLU)were determined by spectrophotometry.Results:The 1-MCP-treated persimmons displayed a lower fruit decay rate,but higher contents of lignin and total phenolics,higher activities of PAL,PPO,POD,CHI,and GLU.Conclusions:The treatment with 1-MCP could inhibit the fruit decay of postharvest Anxi persimmons,which might be because 1-MCP enhanced fruit disease resistance by increasing the activities of disease resistance-associated enzymes and retaining higher contents of disease resistance-related substances in postharvest fresh Anxi persimmons.These findings indicate that papers containing 1-MCP at the dosage of 1.35μL/L have potential application in suppressing fruit decay and extending storage life of postharvest fresh Anxi persimmons.
基金This study was supported by the Project of Finance Department of Fujian Province in China(KLe16H01A,KLe16002A)the Science and Technology Innovation Foundation at Fujian Agriculture and Forestry University of China(CXZX2016086,KF2015051).
摘要Objectives:The aim of this work was to analyse the effects of 1-methylcyclopropene(1-MCP)treatment on the metabolisms of membrane lipids in postharvest Anxi persimmons during storage.Materials and methods:Anxi persimmon(Diospyros kaki L.f.cv.Anxi)fruits were treated by paper containing 1-MCP with a concentration of 1.35μl/l.The cellular membrane permeability was analysed by the electric conductivity meter.The activities of lipoxygenase(LOX),phospholipase(PLD)and lipase were determined by spectrophotometry.The component and relative amounts of membrane fatty acids were determined using gas chromatograph(GC).Results:The 1-MCP-treated Anxi persimmons manifested a lower electrolyte leakage rate,lower LOX,PLD and lipase activities,higher levels of unsaturated fatty acids(USFAs),higher ratio of USFAs to saturated fatty acids(SFAs)(U/S),higher index of USFAs(IUFA),but lower levels of SFAs.Conclusions:The degradation and the metabolisms of membrane lipids could be suppressed by 1-MCP treatment,which might be accountable for the delaying softening of postharvest Anxi persimmons during storage.
摘要本研究采用感官评价、高效液相色谱、高效液相色谱-串联质谱及顶空固相微萃取-气相色谱-质谱对不同香型安溪黄金桂中的主要风味品质成分进行分析。结果表明,安溪黄金桂具有“芬芳四溢、味醇甘美”的特征,不同香型安溪黄金桂的感官品质各具特色,清香型黄金桂花果香清鲜持久、滋味鲜醇甘爽;浓香型黄金桂焙香浓郁有甜感、滋味浓醇甘爽。两种香型黄金桂共筛选出61种差异香气物质。基于气味活性值分析及香气特征影响(aroma character impact,ACI)值进一步分析,发现清香型黄金桂的甲基庚烯酮、水杨酸甲酯、正己醛和异戊醇的ACI值显著高于浓香型,推测上述物质为呈现清香、花香和果香的关键特征香气物质;浓香型黄金桂中的脱氢芳樟醇、桃金娘烯醇、2,5-二甲基-3-乙基吡嗪、2-乙酰基-3-甲基吡嗪、柠檬烯和藏红花醛ACI值显著高于清香型,推测上述物质为呈现烘焙香、花香和果香的关键特征香气物质。本研究初步探明了不同香型安溪黄金桂品质化学特征及其香气形成的物质基础,可为阐明安溪黄金桂风味品质特征提供科学依据。