现代农业科技Issue(8)：124-128,133,6.DOI:10.3969/j.issn.1007-5739.2024.08.032
6个鲜食葡萄品种不同部位生物活性物质含量及抗氧化活性比较
Content and Antioxidant Activity of Bioactive Substance in Different Parts of Six Fresh Grapes
摘要
Abstract
Fresh grapes with three kinds of color systems(a seedless variety and a seeded variety in each color system)were chosen as the experimental material.The contents of polyphenols,flavonoids and procyanidins in stem,pericarp,pulp and seed of grapes were detected.The antioxidant activities of these grapes were evaluated by using 2,2-diphenyl-1-picrylhydrazyl radicals(DPPH·)method.The correlation coefficient between the contents and total activity of the three bioactive substances were analyzed.The results indicated that the contents of polyphenols in stem was varietal in different color grapes varieties,and the polyphenols content of yellow green varieties and red varieties were significantly higher than that of purple black varieties,the polyphenols content of seedless grapes was higher than that of seeded grapes;the flavonoids content was the highest in red varieties,and flavonoids content of seedless grapes was higher than that of seeded grapes.The contents of polyphenols,flavonoids and procyanidins in pericarp were increasing with the darking of pericarp color;the darker the color,the higher the contents;the content of proanthocyanidins of seedless grapes was significantly higher than that of seeded grapes in yellow green varieties and red varieties.The content of polyphenols in pulp was the lowest in seeded grapes of purple black varieties;the content of proanthocyanidins in purple black varieties was significantly higher than that in red varieties;the content of proanthocyanidins of seeded grapes was significantly higher than that of seedless grapes in yellow green varieties and red varieties.Overall the contents of polyphenols and proanthocyanidins in grapes seeds significantly increased with the darking of pericarp color.The antioxidant activity of bioactive substances in stem of seedless grapes in yellow green varieties and red varieties were significantly higher than those in purple black varieties,and antioxidant activity of bioactive substances in seedless grapes was higher than that in seeded grapes.The antioxidant activity of bioactive substances in purple black varieties was significantly higher than that in yellow green varieties and red varieties.Antioxidant activity of bioactive substances of seeded grapes were significantly higher than that of seedless grapes in yellow green varieties.There was a significantly positive correlation between the content of polyphenols and flavonoids and the total antioxidant activity of the extract.In conclusion,the stems of fresh grapes are rich in polyphenols and flavonoids,and the content was the highest in the red seedless varieties.The grapes'harvest stem can be used as a raw material for extracting polyphenols and flavonoids.The polyphenols,flavonoids and proanthocyanidin of fresh grapes increased with the darking of the pericarp color.Varieties with dark pericarp color and good quality can be selected for fresh grapes.The grapes seeds are rich in polyphenols,flavonoids and proanthocyanidin,which can be used as raw materials for extracting bioactive substances.The total antioxidant activity of fresh grapes extract is mainly determined by polyphenols and flavonoids.关键词
鲜食葡萄/器官/生物活性物质/含量/抗氧化活性Key words
fresh grape/organ/bioactive substance/content/antioxidant activity分类
农业科技引用本文复制引用
张金容,邓群仙,袁璐,辛亚宁,邓倩..6个鲜食葡萄品种不同部位生物活性物质含量及抗氧化活性比较[J].现代农业科技,2024,(8):124-128,133,6.基金项目
四川省科技计划项目(2022ZHYZ0002) （2022ZHYZ0002）
四川省科普培训项目(2022JDKP0024). （2022JDKP0024）
