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1-Methylcyclopropene treatment controls ethanol accumulation associated with regulation of mitochondrial energy metabolism in kiwifruit (Actinidia deliciosa) cv. "Bruno" during storage at room temperature.
Journal of Food Biochemistry ( IF 4 ) Pub Date : 2020-05-25 , DOI: 10.1111/jfbc.13273
Maratab Ali 1 , Muhammad Ammar Raza 1 , Shenge Li 1 , Chen Huan 1 , Xiaolin Zheng 1
Affiliation  

In this paper, the effects of 1‐methylcyclopropene (1‐MCP) treatment on the ethanol accumulation and mitochondrial energy metabolism in kiwifruit (Actinidia deliciosa) cv. “Bruno” were investigated during storage at room temperature (24 ± 1°C). The results showed that 1‐MCP treatment significantly reduced the ethanol accumulation, maintained higher levels of adenosine triphosphate (ATP) content and energy charge (EC), enhanced enzymes activities involved in mitochondrial energy metabolism, such as succinic dehydrogenase, cytochrome C oxidase, H+‐adenosine triphosphatase (H+‐ATPase), and Ca2+‐adenosine triphosphatase (Ca2+‐ATPase), and regulated the NADH/NAD+ ratio, and pyruvate to tricarboxylic acid cycle (TCA) by suppressing the glutamate–pyruvate transaminase and promoting the pyruvate dehydrogenase activity, and decarboxylation of citric acid in harvested kiwifruit. These shifts in mitochondrial energy metabolism and oxidative phosphorylation correlated the higher ATP yield and an elevated EC with lower ethanol accumulation (13.71% of those in the control fruit) under 1‐MCP treatment, and reduced the susceptibility of ethanol related off‐flavor disorder in kiwifruit during storage.

中文翻译:

1-甲基环丙烯处理可控制与猕猴桃(Actinidia deliciosa)cv中线粒体能量代谢相关的乙醇积累。在室温下储存期间的“布鲁诺”。

在本文中,1-甲基环丙烯(1-MCP)处理对猕猴桃(Actinidia deliciosa)cv中乙醇积累和线粒体能量代谢的影响。在室温(24±1°C)下储存期间对“ Bruno”进行了研究。结果表明,1-MCP处理可显着减少乙醇积累,维持较高水平的三磷酸腺苷(ATP)和能量电荷(EC),增强线粒体能量代谢中涉及的酶活性,如琥珀酸脱氢酶,细胞色素C氧化酶,H + -腺苷三磷酸酶(H + -ATPase)和Ca 2 + -腺苷三磷酸酶(Ca 2+ -ATPase),并调节NADH / NAD +通过抑制谷氨酸-丙酮酸转氨酶并促进丙酮酸脱氢酶活性,以及​​在收获的奇异果中柠檬酸脱羧,可实现丙酮酸与三羧酸循环(TCA)的比率。在1‐MCP处理下,线粒体能量代谢和氧化磷酸化的这些变化与较高的ATP产量和较高的EC与较低的乙醇积累(相对于对照水果的13.71%)相关,并降低了乙醇相关的异味障碍的易感性。猕猴桃在储存期间。
更新日期:2020-05-25
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