[Objectives] This study was conducted to analyze the differences in procyanidine content in grapes caused by different producing areas. [Methods]With Muscat Hamburg grape from different producing areas as an experimen...[Objectives] This study was conducted to analyze the differences in procyanidine content in grapes caused by different producing areas. [Methods]With Muscat Hamburg grape from different producing areas as an experimental material,procyanidine content was determined by n-butanol-hydrochloric acid colorimetry. [Results] The procyanidins contents in different parts of the same variety ranked as grape seed > grape skin > grape flesh. The procyanidins contents in grapes from different producing areas were in order of Changli County,Hebei Province > Dazeshan Town,Shandong Province > Hangu District,Tianjin City.[Conclusions]The procyanidins contents in Muscat Hamburg grapes from different producing areas differ to a certain degree.展开更多
以玫瑰香(Vitis vinifera L. cv. Muscat Hamburg)葡萄为试材,研究果实纵横径,始熟期前后pH值、可溶性糖、总酸和脱落酸含量的变化。结果表明,玫瑰香葡萄果实纵横径变化趋势基本一致,分第一个快速生长期、缓慢生长期、第二个快速生长期...以玫瑰香(Vitis vinifera L. cv. Muscat Hamburg)葡萄为试材,研究果实纵横径,始熟期前后pH值、可溶性糖、总酸和脱落酸含量的变化。结果表明,玫瑰香葡萄果实纵横径变化趋势基本一致,分第一个快速生长期、缓慢生长期、第二个快速生长期三个时期,果实内可溶性糖主要为葡萄糖和果糖,蔗糖含量很少。可溶性糖含量在始熟期开始快速上升,三种糖变化趋势基本一致。葡萄糖、果糖和蔗糖始熟期前平均日增量分别为0.29,0.23,0.01 mg/g,始熟期后三者平均日增量分别为1.35,1.67,0.12 mg/g。始熟期前果实内葡萄糖∶果糖为12∶1,始熟期后葡萄糖和果糖含量开始快速升高,果糖升高速率高于葡萄糖,到花后77 d,二者差距逐渐缩至葡萄糖∶果糖为1∶1。pH值在始熟期开始快速升高,总酸含量和pH值呈吻合相反变化趋势。脱落酸含量伴随始熟的发生而迅速增加,果实成熟阶段有一个高峰,完熟前下降。总之,随着花后56 d葡萄果实成熟的启动,可溶性糖含量(主要葡萄糖和果糖)、pH值和ABA水平开始快速上升。葡萄果实成熟的启动依赖于ABA峰出现,而果实完熟过程不依赖于ABA的积累。葡萄果实始熟期前后可溶性糖含量、pH值和ABA水平之间平行关系调控的生理机制,即ABA持续积累的生理机制是今后研究的重要内容。展开更多
基金Supported by the Key Research and Development Foundation of Tianjin City(17YFXTZC00040)Agriculture Product Quality and Security Detection Foundation of Ministery of Agriculture(181821301092362005)Tianjin Science and Technology Program(17JCYBJC29800,16PTZSTG00020)
文摘[Objectives] This study was conducted to analyze the differences in procyanidine content in grapes caused by different producing areas. [Methods]With Muscat Hamburg grape from different producing areas as an experimental material,procyanidine content was determined by n-butanol-hydrochloric acid colorimetry. [Results] The procyanidins contents in different parts of the same variety ranked as grape seed > grape skin > grape flesh. The procyanidins contents in grapes from different producing areas were in order of Changli County,Hebei Province > Dazeshan Town,Shandong Province > Hangu District,Tianjin City.[Conclusions]The procyanidins contents in Muscat Hamburg grapes from different producing areas differ to a certain degree.
文摘以玫瑰香(Vitis vinifera L. cv. Muscat Hamburg)葡萄为试材,研究果实纵横径,始熟期前后pH值、可溶性糖、总酸和脱落酸含量的变化。结果表明,玫瑰香葡萄果实纵横径变化趋势基本一致,分第一个快速生长期、缓慢生长期、第二个快速生长期三个时期,果实内可溶性糖主要为葡萄糖和果糖,蔗糖含量很少。可溶性糖含量在始熟期开始快速上升,三种糖变化趋势基本一致。葡萄糖、果糖和蔗糖始熟期前平均日增量分别为0.29,0.23,0.01 mg/g,始熟期后三者平均日增量分别为1.35,1.67,0.12 mg/g。始熟期前果实内葡萄糖∶果糖为12∶1,始熟期后葡萄糖和果糖含量开始快速升高,果糖升高速率高于葡萄糖,到花后77 d,二者差距逐渐缩至葡萄糖∶果糖为1∶1。pH值在始熟期开始快速升高,总酸含量和pH值呈吻合相反变化趋势。脱落酸含量伴随始熟的发生而迅速增加,果实成熟阶段有一个高峰,完熟前下降。总之,随着花后56 d葡萄果实成熟的启动,可溶性糖含量(主要葡萄糖和果糖)、pH值和ABA水平开始快速上升。葡萄果实成熟的启动依赖于ABA峰出现,而果实完熟过程不依赖于ABA的积累。葡萄果实始熟期前后可溶性糖含量、pH值和ABA水平之间平行关系调控的生理机制,即ABA持续积累的生理机制是今后研究的重要内容。