Lysine and threonine supplementation promotes postharvest quality of Volvariella volvacea mushroom during low-temperature preservation via maintenance of the citrate cycle

文献类型： 外文期刊

第一作者： Zheng, Tingting

作者： Zheng, Tingting;Wang, Ying;Li, Zhengpeng;Bao, Dapeng;Tan, Qi;Zou, Gen;Su, Erzheng;Zhang, Jianguo;Li, Nanyi;Wei, Yongjun;Bao, Dapeng

作者机构：

关键词： Volvariella volvacea; Energy metabolism; Functional food; L -lysine; L -threonine

期刊名称：LWT-FOOD SCIENCE AND TECHNOLOGY （ 影响因子：6.0； 五年影响因子：6.0 ）

ISSN： 0023-6438

年卷期： 2023 年 182 卷

页码：

收录情况： SCI

摘要： Volvariella volvacea, the edible straw mushroom, is popular among consumers; however, its freshness is difficult to maintain at 4 degrees C. Spray treatment with the ubiquitin-binding enzyme E2 (UBEV2) inhibitor L345-0044 maintained the freshness of V. volvacea during storage at 4 degrees C for 48 h. Inhibitor treatment enhanced the ability of V. volvacea to resist cold stress by inducing overexpression of genes involved in protein translation, protein turnover, N-glycan biosynthesis, and lysine metabolism. Overexpression of saccharopine dehydrogenase genes, which participate in lysine metabolism in yeast, enhanced freezing tolerance. Anti-freezing experiments showed that the addition of L-lysine or L-threonine improved the quality of V. volvacea at 4 degrees C with stable soluble sugar levels, as lysine or threonine metabolism produced acetyl-CoA for maintaining the citrate cycle. Our findings revealed that supplementation with L-lysine or L-threonine prolonged the preservation time of V. volvacea for more than 24 h via maintenance of the citrate cycle.

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