1-MCP Regulates Ethanol Fermentation and GABA Shunt Pathway Involved in Kiwifruit Quality During Postharvest Storage

Maratab Ali; Muhammad Ammar Raza; Shenge Li; Lichao Zhou; Chen Huan; Shen Shuling; Xiaolin Zheng

Horticultural Plant Journal (Jan 2021)

1-MCP Regulates Ethanol Fermentation and GABA Shunt Pathway Involved in Kiwifruit Quality During Postharvest Storage

Maratab Ali,
Muhammad Ammar Raza,
Shenge Li,
Lichao Zhou,
Chen Huan,
Shen Shuling,
Xiaolin Zheng

Affiliations

Maratab Ali: College of Food Science and Biotechnology, Key Laboratory of Fruits and Vegetables Postharvest and Processing Technology Research of Zhejiang Province, Zhejiang Gongshang University, Hangzhou 310018, China; National Institute of Food Science and Technology, Faculty of Food, Nutrition and Home Sciences, University of Agriculture, Faisalabad 38800, Pakistan
Muhammad Ammar Raza: College of Food Science and Biotechnology, Key Laboratory of Fruits and Vegetables Postharvest and Processing Technology Research of Zhejiang Province, Zhejiang Gongshang University, Hangzhou 310018, China
Shenge Li: College of Food Science and Biotechnology, Key Laboratory of Fruits and Vegetables Postharvest and Processing Technology Research of Zhejiang Province, Zhejiang Gongshang University, Hangzhou 310018, China
Lichao Zhou: Fruit Professional Cooperative of Huaji Shan in Linhai City, Linhai, Zhejiang 317000, China
Chen Huan: College of Food Science and Biotechnology, Key Laboratory of Fruits and Vegetables Postharvest and Processing Technology Research of Zhejiang Province, Zhejiang Gongshang University, Hangzhou 310018, China
Shen Shuling: College of Food Science and Biotechnology, Key Laboratory of Fruits and Vegetables Postharvest and Processing Technology Research of Zhejiang Province, Zhejiang Gongshang University, Hangzhou 310018, China; Corresponding authors. Tel: +86 571 28008958
Xiaolin Zheng: College of Food Science and Biotechnology, Key Laboratory of Fruits and Vegetables Postharvest and Processing Technology Research of Zhejiang Province, Zhejiang Gongshang University, Hangzhou 310018, China; Corresponding authors. Tel: +86 571 28008958

Journal volume & issue: Vol. 7, no. 1
pp. 23 – 30

Abstract

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Kiwifruit (Actinidia deliciosa) ‘Bruno’ is prone to accumulate ethanol rapidly after respiratory climacteric during storage at ambient conditions without stresses, which causes quality deterioration of the fruit associated with alcohol off-flavor. For maintaining the postharvest quality of kiwifruit ‘Bruno’, the effects of 1.0 µL • L−1 1-methylcyclopropene (1-MCP) treatment on regulating the ethanol fermentation and γ-aminobutyric acid (GABA) shunt pathway associated with control of alcohol off-flavor were investigated during storage at room temperature (24 ± 1) °C for 27 days. The results showed that 1-MCP treatment significantly reduced the respiration rate, ethylene production, decay rate, ascorbic acid (AsA) loss, and delayed the decline in the firmness and titratable acidity (TA), and the increase in total soluble solid (TSS) in kiwifruit. Furthermore, 1-MCP treatment effectively inhibited the increases in contents of acetaldehyde, ethanol, and GABA along with the suppressed activities of key enzymes involved in ethanol fermentation and GABA shunt pathway, such as pyruvate decarboxylase (PDC), alcohol dehydrogenase (ADH), glutamate decarboxylase (GAD), and GABA-transaminase (GABA-T) in kiwifruit during storage. In conclusion, 1-MCP treatment efficiently regulated the ethanol fermentation and GABA shunt pathway by delaying the ripening process to avoid the alcohol off-flavor development, thereby contributed to maintaining the quality of the kiwifruit.

Published in Horticultural Plant Journal

ISSN: 2095-9885 (Print); 2468-0141 (Online)
Publisher: KeAi Communications Co., Ltd.
Country of publisher: China
LCC subjects: Agriculture: Plant culture
Website: https://www.keaipublishing.com/en/journals/horticultural-plant-journal/

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