The contamination of Alternaria alternata alters the compounds in cherry fruit during cold storage

IF 6.8 1区农林科学 Q1 AGRONOMY Postharvest Biology and Technology Pub Date : 2025-01-16 DOI:10.1016/j.postharvbio.2025.113408

Feng Wang , Dongjie Liu , Ruijing Liu , Qin Wang , Gengsheng Xiao , Lukai Ma

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Abstract

Alternaria alternata is a common fruit-decaying fungus that is potentially hazardous to fruit quality and human health. In this study, volatile and non-volatile compounds in cherry quality after artificial inoculation with A. alternata during cold storage were investigated using HS-GC-IMS and LC-MS. After fungal exposure, cherry samples exhibited significant changes in fungal counts, fruit firmness, and total soluble solid. A total of 36 volatile compounds, including 15 alcohols, 9 aldehydes, 5 esters, 4 ketones, 2 sulfur compounds, and 1 hydrocarbon were detected in the cherries by HS-GC-IMS. Changes in various aldehydes and sulfur compounds occurred in the early and middle storage stages, and changes in alcohols, esters, and ketones occurred in the middle-later storage stages. Seven types of non-volatile compounds were identified as key differential metabolites including 2-hydroxyphenylacetic acid O-b-D-glucoside, 2-O-benzoyl-D-glucose, gluconic acid, D-glucuronic acid, malonic acid, portulacaxanthin II, and altenusin, which are involved in the biosynthesis pathways of glucose, glycoside compounds, betalain, and fungal metabolites. This study provides further understanding of the relationship between the contamination of A. alternata and the quality of cherry fruit and lays the foundation for preservation technology for fresh fruit.

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交替孢霉的污染改变了樱桃果实在冷藏过程中的化合物

交替孢霉是一种常见的水果腐烂真菌，对水果品质和人体健康有潜在的危害。本研究采用hplc - gc - ims和LC-MS技术，研究了冷库人工接种双歧杆菌后樱桃品质中挥发性和非挥发性成分的变化。在真菌暴露后，樱桃样品在真菌计数、果实硬度和总可溶性固形物方面表现出显著的变化。HS-GC-IMS共检测出36种挥发性化合物，其中醇类15种，醛类9种，酯类5种，酮类4种，硫类2种，烃类1种。各种醛类和硫类化合物的变化发生在贮藏前期和中期，醇类、酯类和酮类化合物的变化发生在贮藏中后期。鉴定出7种非挥发性化合物为关键差异代谢物，包括2-羟基苯基乙酸o -b- d -葡萄糖苷、2- o -苯甲酰- d -葡萄糖、葡萄糖酸、d -葡萄糖醛酸、丙二酸、马齿苋黄质II和altenusin，它们参与了葡萄糖、糖苷类化合物、甜菜素和真菌代谢物的生物合成途径。本研究为进一步了解青霉污染与樱桃果实品质的关系提供了依据，为鲜果保鲜技术奠定了基础。

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来源期刊

Postharvest Biology and Technology 农林科学-农艺学

CiteScore

12.00

自引率

11.40%

发文量

309

审稿时长

38 days

期刊介绍： The journal is devoted exclusively to the publication of original papers, review articles and frontiers articles on biological and technological postharvest research. This includes the areas of postharvest storage, treatments and underpinning mechanisms, quality evaluation, packaging, handling and distribution of fresh horticultural crops including fruit, vegetables, flowers and nuts, but excluding grains, seeds and forages. Papers reporting novel insights from fundamental and interdisciplinary research will be particularly encouraged. These disciplines include systems biology, bioinformatics, entomology, plant physiology, plant pathology, (bio)chemistry, engineering, modelling, and technologies for nondestructive testing. Manuscripts on fresh food crops that will be further processed after postharvest storage, or on food processes beyond refrigeration, packaging and minimal processing will not be considered.