The experiment addressed the effects of preharvest KH_(2)PO_(4)foliar spraying(20 mmol·L^(-1))on fruit quality and composition(including volatile organic compounds,VOCs)of cherry tomatoes(‘Caravaggio’,‘Sugarl...The experiment addressed the effects of preharvest KH_(2)PO_(4)foliar spraying(20 mmol·L^(-1))on fruit quality and composition(including volatile organic compounds,VOCs)of cherry tomatoes(‘Caravaggio’,‘Sugarland’and‘Top Stellina’)after 0(S0),7(S7)and 14 days(S14)of storage at 8.0°C.On the average of the 3 genotypes,the KH_(2)PO_(4)treatment improved fruit pressure firmness,total soluble solids(TSS),titratable acidity(TA),total phenols and carotenoids concentrations,along with the fruits'antioxidant capacity(by up to 17%for FRAP assay).Within the S7–S14 period,control fruits showed the highest reductions in TSS,TSS/TA ratio and total carotenoids(-17,-12 and-45,respectively),whereas treated fruits proved the strongest increase in DPPH(+12%).Sixteen out of 32 VOCs were promoted following KH_(2)PO_(4)application,including the aldehydes hexanal,(E)-2-hexenal and(Z)-3-hexenal and the apocarotenoids(E)-citral,(E)-β-ionone,geranylacetone and 6-methyl-5-hepten-2-one.Proceeding from S0 to S14,several VOCs decreased more strongly in control fruits,as for hexanal(-48%)and total aldehydes(-42%,whereas at S14 treated fruits had higher concentrations of linalool,geranylacetone and 6-methyl-5-hepten-2-one(1.06,52.50 and 79.27μg·kg^(-1),respectively).‘Caravaggio’demonstrated the strongest apocarotenoid reduction at S14,whereas‘Top Stellina’was more responsive to KH_(2)PO_(4)(mainly forβ-cyclocitral,geranylacetone and total terpenes/terpenoids),thus highlighting the central role of the genotype in responding to other experimental factors.Nonetheless,these results suggest that proper preharvest KH_(2)PO_(4)applications can preserve specific commercial,nutritional and quality traits of cold-stored cherry tomatoes.展开更多
POS（Point of sak）中文称为银行卡服务终端（或称为柜台终端），大致可分为金融POS和商业POS两种。所谓金融POS系统，就是通过POS终端及其网络直接办理转账、划账等结算业务，实现无现金、无支票、无纸张的金融结算。它主要用以支持...POS（Point of sak）中文称为银行卡服务终端（或称为柜台终端），大致可分为金融POS和商业POS两种。所谓金融POS系统，就是通过POS终端及其网络直接办理转账、划账等结算业务，实现无现金、无支票、无纸张的金融结算。它主要用以支持用户以银行卡、借记卡等卡片货币方式进行消费行为的系统。完全电子化的金融POS系统主要包括三部分：POS终端机、网络设备及主机处理系统。展开更多
基金funded by the National Recovery and Resilience Plan(NRRP),Mission 4 Component 2 Investment 1.3—Call for proposals No.341 of 15 March 2022 of Italian Ministry of University and Research funded by the European Union—NextGenerationEU,Award Number:Project code PE00000003Concession Decree No.1550 of 11 October 2022 adopted by the Italian Ministry of University and Research,CUP E63C22002060006+1 种基金Project title“ON Foods—Research and innovation network on food and nutrition Sustainability,Safety and Security—Working ON Foodsfunded by the Italian Ministry of University and Research(MUR)under the project“Conservabilità,qualitàe sicurezza dei prodotti ortofrutticoli ad alto contenuto di servizio-ARS01_00640–POFACS”(Grant Nos.D.D.1211/2020 and 1104/2021).
文摘The experiment addressed the effects of preharvest KH_(2)PO_(4)foliar spraying(20 mmol·L^(-1))on fruit quality and composition(including volatile organic compounds,VOCs)of cherry tomatoes(‘Caravaggio’,‘Sugarland’and‘Top Stellina’)after 0(S0),7(S7)and 14 days(S14)of storage at 8.0°C.On the average of the 3 genotypes,the KH_(2)PO_(4)treatment improved fruit pressure firmness,total soluble solids(TSS),titratable acidity(TA),total phenols and carotenoids concentrations,along with the fruits'antioxidant capacity(by up to 17%for FRAP assay).Within the S7–S14 period,control fruits showed the highest reductions in TSS,TSS/TA ratio and total carotenoids(-17,-12 and-45,respectively),whereas treated fruits proved the strongest increase in DPPH(+12%).Sixteen out of 32 VOCs were promoted following KH_(2)PO_(4)application,including the aldehydes hexanal,(E)-2-hexenal and(Z)-3-hexenal and the apocarotenoids(E)-citral,(E)-β-ionone,geranylacetone and 6-methyl-5-hepten-2-one.Proceeding from S0 to S14,several VOCs decreased more strongly in control fruits,as for hexanal(-48%)and total aldehydes(-42%,whereas at S14 treated fruits had higher concentrations of linalool,geranylacetone and 6-methyl-5-hepten-2-one(1.06,52.50 and 79.27μg·kg^(-1),respectively).‘Caravaggio’demonstrated the strongest apocarotenoid reduction at S14,whereas‘Top Stellina’was more responsive to KH_(2)PO_(4)(mainly forβ-cyclocitral,geranylacetone and total terpenes/terpenoids),thus highlighting the central role of the genotype in responding to other experimental factors.Nonetheless,these results suggest that proper preharvest KH_(2)PO_(4)applications can preserve specific commercial,nutritional and quality traits of cold-stored cherry tomatoes.
文摘POS（Point of sak）中文称为银行卡服务终端（或称为柜台终端），大致可分为金融POS和商业POS两种。所谓金融POS系统，就是通过POS终端及其网络直接办理转账、划账等结算业务，实现无现金、无支票、无纸张的金融结算。它主要用以支持用户以银行卡、借记卡等卡片货币方式进行消费行为的系统。完全电子化的金融POS系统主要包括三部分：POS终端机、网络设备及主机处理系统。
