Sulfur dioxide (SO2) accumulation in postharvest grape: The role of pedicels of four different varieties
文献类型： 外文期刊
作者： Yuan, Yuyao 1 ; Wei, Jia 2 ; Xing, Shijun 1 ; Zhang, Zheng 1 ; Wu, Bin 2 ; Guan, Junfeng 3 ;
作者机构： 1.Xinjiang Agr Univ, Coll Hort, Urumqi 830052, Xinjiang, Peoples R China
2.Inst Agroprod Storage & Proc, Xinjiang Acad Agr Sci, Urumqi 830091, Xinjiang, Peoples R China
3.Hebei Acad Agr & Forestry Sci, Inst Biotechnol & Food Sci, Shijiazhuang 050051, Hebei, Peoples R China
关键词： Grapes; Sulfur dioxide; Pedicel structure; Postharvest quality; SO(2)accumulation
期刊名称：POSTHARVEST BIOLOGY AND TECHNOLOGY （ 影响因子：6.751； 五年影响因子：7.001 ）
ISSN： 0925-5214
年卷期： 2022 年 190 卷
页码：
收录情况： SCI
摘要： Fumigation with sulfur dioxide (SO2) is the most common and effective treatment for maintaining the postharvest quality and controlling storage disease in table grape. However, excessive accumulation of SO2 caused by improper use may result in berry discoloration or off-flavors. It remains unclear whether SO2 accumulation is related to the structure of the grape pedicel. Here, we used four varieties of table grapes to investigate the relationship between pedicel structure and SO2 accumulation in different parts of a grape cluster. The results showed that SO2 accumulation in the pedicels of different grape varieties was significantly higher than that in the rachises and berries. In pedicels, SO2 mainly diffused through the lenticels. Furthermore, the pedicel water content and lenticel area were closely related to the extent of SO2 accumulation. This study reveals the pathways for diffusion and the sites of SO2 accumulation in postharvest grapes after fumigation with SO2. Further, it provides a sound theoretical basis for studies related to SO2 accumulation in grapes.
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