Impact of Edible Hydrocolloids on Quality and Shelf Life of Litchi (Litchi chinensis Sonn.) Under Ambient Conditions

IF 1.2 4区农林科学 Q3 HORTICULTURE

Erwerbs-Obstbau Pub Date : 2024-04-18 DOI:10.1007/s10341-024-01081-0

Pushpendra Kumar, Shruti Sethi, Swarajya Laxmi Nayak

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Abstract

The present study was conducted to evaluate the efficacy of edible hydrocolloids in inhibiting the pericarp browning and extending the shelf life of litchi under ambient storage conditions (27 ± 3 ℃ & 82 ± 5% RH). Pericarp browning of litchi deteriorates the shelf life and commercial value of fruits. Changes in polyphenol oxidase and peroxidase activity, colour index and concentrations of total phenolics, soluble solids content, titratable acidity and ascorbic acid were measured. Edible coatings, namely carboxymethyl cellulose (CMC), methylcellulose (MC), and acacia gum (AG), extended the shelf life and maintained the postharvest quality of litchi under ambient conditions. CMC had a profound impact on retention of soluble solids content (∼ 65%), titratable acidity (∼ 42%), ascorbic acid content (∼ 24%), and total phenolics (~ 40%) compared to the uncoated fruits until the end of 7 days of ambient storage. Moreover, lesser polyphenol oxidase (∼ 25%) and peroxidise activities (∼ 28%) were observed in CMC coated fruits under ambient conditions. Weight loss and decay incidence was also retarded in CMC coated fruits. Thus, CMC coating can be considered an eco-friendly alternative of chemical preservatives to preserve postharvest quality and reduce pericarp browning of litchi for 7 days.

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可食用水胶体对环境条件下荔枝（Litchi chinensis Sonn.）品质和保质期的影响

本研究旨在评估食用水胶体在常温储存条件下（27 ± 3 ℃ & 82 ± 5% RH）抑制荔枝果皮褐变和延长货架期的功效。荔枝果皮褐变会降低水果的货架期和商业价值。测量了多酚氧化酶和过氧化物酶活性、颜色指数和总酚类物质浓度、可溶性固形物含量、可滴定酸度和抗坏血酸的变化。在常温条件下，羧甲基纤维素（CMC）、甲基纤维素（MC）和刺槐胶（AG）等可食涂层可延长荔枝的货架期并保持其采后品质。与未涂布的水果相比，CMC 对可溶性固形物含量（65%）、可滴定酸度（42%）、抗坏血酸含量（24%）和总酚（40%）的保持有显著影响，直到常温贮藏 7 天结束。此外，在常温条件下，CMC 涂层水果的多酚氧化酶（∼ 25%）和过氧化物活性（∼ 28%）较低。涂有 CMC 的水果的重量损失和腐烂率也有所降低。因此，CMC涂层可被视为化学防腐剂的环保型替代品，可在7天内保持荔枝的采后品质并减少果皮褐变。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Erwerbs-Obstbau 农林科学-园艺

CiteScore

1.70

自引率

15.40%

发文量

152

审稿时长

>12 weeks

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