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A comprehensive study of factors affecting postharvest disorder development in celery
Postharvest Biology and Technology ( IF 7 ) Pub Date : 2021-02-01 , DOI: 10.1016/j.postharvbio.2020.111384 Maria Anastasiadi , Natalia Falagán , Simone Rossi , Leon A. Terry
Postharvest Biology and Technology ( IF 7 ) Pub Date : 2021-02-01 , DOI: 10.1016/j.postharvbio.2020.111384 Maria Anastasiadi , Natalia Falagán , Simone Rossi , Leon A. Terry
Abstract Fresh-cut celery is an economically important crop, susceptible to postharvest disorders such as browning at cut ends, which can compromise quality and affect freshness perception. The study herein represents the most comprehensive attempt to date to determine the factors that mediate celery postharvest disorders and uncover the physiological and biochemical mechanisms involved. Three main experiments were conducted over two years, covering the early and late Spanish season and the late UK season. The aim of the experiments was to study: a) the effect of seasonal variation and horticultural maturity on shelf-life (20 °C) of fresh-cut celery; b) the effect of postharvest application of 1-methylcyclopropene (1-MCP) and continuous ethylene supplementation on browning and pithiness development during cold storage (5 °C); and c) the effect of preharvest deficit irrigation on the quality of fresh-cut celery during shelf-life (20 °C). Lesser horticultural maturity increased browning and pithiness with browning severity being positively correlated with chlorogenic acid concentrations in celery cut-ends. Ethylene supplementation accelerated the metabolic activity of celery, leading to early senescence. We found that 1-MCP suppressed respiration rate and delayed browning. Deficit irrigation promoted browning, which coincided with a rapid increase in abscisic acid and its main catabolite phaseic acid during storage. Mild deficit irrigation promoted the increase of chlorogenic acid after 6 d of storage, while severe deficit irrigation did not show this increase. These findings will help growers and retailers standardise industry practices ensuring uniform quality and better shelf-life estimations.
中文翻译:
影响芹菜采后病害发展因素的综合研究
摘要 鲜切芹菜是一种重要的经济作物,易受采后疾病的影响,如切端褐变,这会影响质量并影响新鲜度。本文的研究代表了迄今为止最全面的尝试,以确定介导芹菜收获后疾病的因素并揭示所涉及的生理和生化机制。在两年的时间里进行了三个主要实验,涵盖了西班牙产季的早晚和英国产季的后期。实验的目的是研究: a) 季节性变化和园艺成熟度对鲜切芹菜保质期 (20 °C) 的影响;b) 采后施用 1-甲基环丙烯 (1-MCP) 和连续补充乙烯对冷藏 (5 °C) 期间褐变和果肉度发展的影响;c) 收获前亏缺灌溉对保质期(20°C)鲜切芹菜品质的影响。较低的园艺成熟度增加了褐变和髓质,褐变严重程度与芹菜切端中的绿原酸浓度呈正相关。乙烯补充加速芹菜的代谢活动,导致早期衰老。我们发现 1-MCP 抑制呼吸速率并延迟褐变。灌溉不足促进了褐变,这与储存期间脱落酸及其主要分解代谢物相酸的迅速增加相吻合。轻度亏缺灌溉促进了贮藏6 d后绿原酸的增加,而重亏灌溉则没有这种增加。
更新日期:2021-02-01
中文翻译:
影响芹菜采后病害发展因素的综合研究
摘要 鲜切芹菜是一种重要的经济作物,易受采后疾病的影响,如切端褐变,这会影响质量并影响新鲜度。本文的研究代表了迄今为止最全面的尝试,以确定介导芹菜收获后疾病的因素并揭示所涉及的生理和生化机制。在两年的时间里进行了三个主要实验,涵盖了西班牙产季的早晚和英国产季的后期。实验的目的是研究: a) 季节性变化和园艺成熟度对鲜切芹菜保质期 (20 °C) 的影响;b) 采后施用 1-甲基环丙烯 (1-MCP) 和连续补充乙烯对冷藏 (5 °C) 期间褐变和果肉度发展的影响;c) 收获前亏缺灌溉对保质期(20°C)鲜切芹菜品质的影响。较低的园艺成熟度增加了褐变和髓质,褐变严重程度与芹菜切端中的绿原酸浓度呈正相关。乙烯补充加速芹菜的代谢活动,导致早期衰老。我们发现 1-MCP 抑制呼吸速率并延迟褐变。灌溉不足促进了褐变,这与储存期间脱落酸及其主要分解代谢物相酸的迅速增加相吻合。轻度亏缺灌溉促进了贮藏6 d后绿原酸的增加,而重亏灌溉则没有这种增加。