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Changes in the Grape Cane Stilbene Content under Various Conditions of Storage
ACS Sustainable Chemistry & Engineering ( IF 7.1 ) Pub Date : 2019-11-26 , DOI: 10.1021/acssuschemeng.9b04681 Ivo Soural 1 , Naděžda Vrchotová 2 , Jan Tříska 2 , Josef Balík 1
ACS Sustainable Chemistry & Engineering ( IF 7.1 ) Pub Date : 2019-11-26 , DOI: 10.1021/acssuschemeng.9b04681 Ivo Soural 1 , Naděžda Vrchotová 2 , Jan Tříska 2 , Josef Balík 1
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Wine-making produces a variety of biological wastes, such as grape canes, leaves, stems, shoots, etc. These materials constitute attractive sources of biological substances, such as stilbenes (stilbenoids). The grape canes alone possess a considerably greater content of these health-beneficial substances than the berries; of those, trans-resveratrol is among the best known components, in addition to its oligomers, e.g., trans-ε-viniferin (dimer) and r2-viniferin (tetramer). This article compares various conditions of storage of grape canes, including exposure of the material to special stress conditions (SSC) such as UV radiation, maceration in water, or application of an elicitor to the grape canes. When grape canes were left dry in a laboratory over the period of several tens of weeks, the content of these substances increased (more than 10 times for trans-resveratrol and by around 50% for trans-ε-viniferin and r2-viniferin), while during long-term storage for 1 to 3 years the content of these substances dropped (by up to 30% for trans-resveratrol and trans-ε-viniferin). For r2-viniferin, however, it increased by up to 72%. The use of SSC appears to be a special method where the contents of the stilbenes can be changed.
中文翻译：
不同贮藏条件下甘蔗中二苯乙烯含量的变化
葡萄酒酿造会产生各种生物废物，例如葡萄藤，树叶，茎，芽等。这些材料构成了有吸引力的生物物质来源，例如斯蒂芬类（stilbenoids）。单是葡萄藤，这些有益健康的物质就比浆果多得多。其中，反式白藜芦醇除了其低聚物（例如反式-ε-viniferin（二聚体）和r2-viniferin（四聚体）。本文比较了葡萄藤的各种存储条件，包括将材料暴露于特殊应力条件（SSC）下，例如紫外线辐射，水中浸渍或将激发剂施加到葡萄藤上。当将葡萄藤在实验室中放置数十周后干燥时，这些物质的含量会增加（反式白藜芦醇的含量是其10倍以上，反式-ε-葡萄素和r2-葡萄素的含量约为50％），而在长期储存1至3年的过程中，这些物质的含量下降了（反式白藜芦醇和反式白藜芦醇的含量最多下降了30％-ε-viniferin）。但是，对于r2-viniferin，它最多增加了72％。使用SSC似乎是一种特殊的方法，其中可以更改斯蒂尔苯的含量。
更新日期：2019-11-28
中文翻译：
不同贮藏条件下甘蔗中二苯乙烯含量的变化
葡萄酒酿造会产生各种生物废物，例如葡萄藤，树叶，茎，芽等。这些材料构成了有吸引力的生物物质来源，例如斯蒂芬类（stilbenoids）。单是葡萄藤，这些有益健康的物质就比浆果多得多。其中，反式白藜芦醇除了其低聚物（例如反式-ε-viniferin（二聚体）和r2-viniferin（四聚体）。本文比较了葡萄藤的各种存储条件，包括将材料暴露于特殊应力条件（SSC）下，例如紫外线辐射，水中浸渍或将激发剂施加到葡萄藤上。当将葡萄藤在实验室中放置数十周后干燥时，这些物质的含量会增加（反式白藜芦醇的含量是其10倍以上，反式-ε-葡萄素和r2-葡萄素的含量约为50％），而在长期储存1至3年的过程中，这些物质的含量下降了（反式白藜芦醇和反式白藜芦醇的含量最多下降了30％-ε-viniferin）。但是，对于r2-viniferin，它最多增加了72％。使用SSC似乎是一种特殊的方法，其中可以更改斯蒂尔苯的含量。
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