Sucrose transportation control mediates the fresh-keeping effects of burdock fructooligosaccharide in 'Crimson Seedless' grapes. (1st December 2020)

• Record Type: Journal Article
• Authors: Sun, Fei; Zhu, Lili; Wang, Xince; Cheng, Jianfeng; Cui, Bo; Liu, Jingjing; Tan, Feifei; Fu, Maorun
• Is Part Of: Food chemistry. Volume 332(2020)
• Publication Date: 2020-12-01
• Subjects: Burdock fructooligosaccharide -- Grape -- Sucrose -- Sucrose transporter -- SUC12 -- SUC27; Food -- Analysis -- Periodicals; Food -- Composition -- Periodicals; 664
• DOI: 10.1016/j.foodchem.2020.127437
• Languages: English
• ISSNs: 0308-8146

Abstract

Highlights: BFO limit the flesh sugar export to improve the sweetness/TSS and crispness/firmness. BFO limit the skin sugar signal import to delay the senescence. BFO and sucrose regulate the sucrose transportation via SUC12 and SUC27 . Abstract: In 'Crimson Seedless' grapes, the appearance of senescence caused by abnormal dark red color, the loss of crisp taste caused by the decrease in firmness, and the fading of sweetness caused by the decrease in total soluble sugar (TSS) are the main problems affecting its edible qualities after storage. In the mesocarp, burdock fructooligosaccharide (BFO) restricted sucrose export; therefore, more carbohydrates were retained directly leading to higher TSS and sweetness, and cell osmotic pressure and firmness were retained indirectly. In the exocarp, BFO restricted sucrose import; therefore, the signal molecule sucrose was reduced and the senescence-related processes were inhibited. The downregulation of SUC12 and SUC27 by BFO may play an important role in restricting sucrose transportation. The opposing effects exhibited by exogenous sucrose treatments compared to those of BFO further verified these mechanisms. Based on the above mechanisms, sucrose transportation mediates the fresh-keeping effects of BFO in 'Crimson Seedless' grapes.