Effect of β-aminobutyric acid on cell wall modification and senescence in sweet cherry during storage at 20 °C

被引:86
作者
Wang, Lei [1 ]
Jin, Peng [1 ]
Wang, Jing [1 ]
Jiang, Lulu [1 ]
Shan, Timin [1 ]
Zheng, Yonghua [1 ]
机构
[1] Nanjing Agr Univ, Coll Food Sci & Technol, Nanjing 210095, Jiangsu, Peoples R China
基金
中国国家自然科学基金;
关键词
Sweet cherry; beta-Aminobutyric acid; Cell wall polysaccharides; Softening; HYDROLYTIC ENZYME-ACTIVITY; FRUIT-QUALITY; FIRMNESS; L; POLYSACCHARIDES; CONSTITUENTS; MECHANISMS; EXPRESSION; COATINGS; GROWTH;
D O I
10.1016/j.foodchem.2014.12.011
中图分类号
O69 [应用化学];
学科分类号
081704 ;
摘要
The effects of postharvest beta-aminobutyric acid (BABA) treatment on fruit firmness, pectin degrading enzymes, cell wall constituents and microstructural alterations of pericarp in sweet cherry fruit were investigated. BABA significantly delayed the decline of fruit firmness and inhibited the increase of membrane permeability and the accumulation of malondialdehyde in cherries. The BABA-treated fruit exhibited significantly higher contents of water-soluble pectin, CDTA-soluble pectin, Na2CO3-soluble pectin, total pectin, cellulose and hemicellulose than the control during storage. Activities of pectin degrading enzymes including polygalacturonase and pectinmethylesterase were markedly reduced by BABA treatment. Observations by scanning electron microscopy showed BABA maintained smooth cuticle and integrated structure of subepidermal cell in sweet cherry. These results suggest that the delay in fruit senescence by BABA may be due to depressed membrane permeability and malondialdehyde content, reduced activities of polygalacturonase and pectinmethylesterase, enhanced cell wall polysaccharides content, and integrated subepidermal cell structure in sweet cherry. (C) 2014 Elsevier Ltd. All rights reserved.
引用
收藏
页码:471 / 477
页数:7
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