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  • Title: Hydrogen-rich water delays fruit softening and prolongs shelf life of postharvest okras.
    Author: Dong W, Shi L, Li S, Xu F, Yang Z, Cao S.
    Journal: Food Chem; 2023 Jan 15; 399():133997. PubMed ID: 36037687.
    Abstract:
    The effect of hydrogen-rich water (HRW) treatment on softening, cell wall components and cell wall metabolic genes in okras after harvest was studied. The results showed that HRW treatment could maintain fruit firmness and delay softening, thereby prolonging shelf life in okras during storage. The treated okras displayed significantly lower levels water- and chelate-soluble pectins while higher contents of Na2CO3-soluble pectin, hemicellulose and cellulose. The cell wall biosynthesis was maintained by HRW treatment via up-regulating genes involved in biosynthesis of pectin, hemicellulose and cellulose at the beginning of storage. On the contrary, the treatment could inhibit the cell wall disassembly due to the down-regulation of numerous cell wall degradative genes including AePME, AeGAL and AeCX at the end of storage. Taken together, our results suggested that HRW treatment delayed softening and extended shelf life in postharvest okras through modifying cell wall biosynthesis and disassembly at different times of storage.
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