贮藏温度和采后处理剂对牛油果(Persea americana Mill.)保质期和质量的不同功效。

IF 3.1 2区 农林科学 Q2 CHEMISTRY, APPLIED Plant Foods for Human Nutrition Pub Date : 2024-09-01 Epub Date: 2024-07-06 DOI:10.1007/s11130-024-01207-5
Vittal Kamble, C K Narayana, G Karunakaran, D V Sudhakar Rao, S Sriram, Laxman R H
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引用次数: 0

摘要

牛油果含有丰富的植物营养素,如维生素、矿物质、类胡萝卜素、碳水化合物、多酚和不饱和脂肪酸。然而,由于其气候性状,水果极易受贮藏温度的影响,导致货架期短和质量下降。在本研究中,牛油果果实(登录号 CHES-HA-I/I)在不同的低温(5、9 和 12 °C,相对湿度 90-95%)下贮藏,以确定冷藏的最佳低温。在另一项实验中,用 1-甲基环丙烯(1-MCP,500 ppb)和壳聚糖(0.5%)处理鳄梨果实,以延长货架期,提高果实质量。结果表明,贮藏温度对水果的生理、生化和抗氧化活性有显著影响。与 12 °C 相比,9 °C 下贮藏的水果生理失重(PLW)更低,呼吸作用和乙烯产生减少,碳水化合物、蛋白质和脂肪含量更高。同样,在自由基清除活性(FRSA)和血浆铁还原能力(FRAP)方面,9 °C 下贮藏的牛油果具有最高的抗氧化特性。同时还发现,在 5 °C 下贮藏的果实会出现冷冻损伤。此外,外源施用 1-MCP 能显著降低 9 °C 下的呼吸作用和乙烯产生率,并能延长货架期至 42 天,同时提高果实质量和抗氧化活性。然而,经壳聚糖处理的水果和对照水果的货架期分别为 28 天和 21 天,营养成分含量最低。这项研究得出的结论是,与其他储存温度(5 和 12 °C)和采后处理(壳聚糖)相比,9 °C 的储存温度和 1-MCP 处理能显著延长牛油果水果的货架期,提高水果质量。
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Differential Efficacy of Storage Temperature and Postharvest Treatment on Shelf Life and Quality of Avocado Fruit (Persea americana Mill.).

Avocado fruit is a rich source of phytonutrients such as vitamins, minerals, carotenoids, carbohydrates, polyphenols and unsaturated fatty acids. However, due to its climacteric nature, fruits are highly susceptible to storage temperature, resulting in poor shelf life and reduced quality. In the present study avocado fruits (Accession CHES-HA-I/I) were stored at different low temperatures (5, 9 and 12 °C with 90-95% relative humidity, RH) to identify optimum low temperature for cold storage. In a further experiment, avocado fruits were treated with 1-methylcyclopropene (1-MCP, 500 ppb) and chitosan (0.5%) to extend the shelf life with better fruit quality. The results showed that storage temperatures had significant effect on physiological, biochemical and antioxidant activities of fruits. Lower physiological loss in weight (PLW), reduced respiration and ethylene production, and higher carbohydrates, protein and fat content were recorded in fruits stored at 9 °C as compared to 12 °C. Similarly, maximum antioxidant properties in terms of free radical scavenging activity (FRSA) and ferric reducing ability of plasma (FRAP) was found in avocado fruits stored at 9 °C. It was also noticed that chilling injury was developed in fruits stored under 5 °C. In addition, exogenous application of 1-MCP significantly reduced respiration and ethylene production rate at 9 °C and extended the shelf life up to 42 days with better fruit quality and more antioxidant activities. However, chitosan treated and control fruits had shelf life up to 28 and 21 days respectively, with minimum nutritional content. From this study it is concluded that a storage temperature of 9 °C and 1-MCP treatment significantly enhanced the shelf life of avocado fruits with better fruit quality as compared to other storage temperatures (5 and 12 °C) and postharvest treatment (chitosan).

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来源期刊
Plant Foods for Human Nutrition
Plant Foods for Human Nutrition 工程技术-食品科技
CiteScore
6.80
自引率
7.50%
发文量
89
审稿时长
12-24 weeks
期刊介绍: Plant Foods for Human Nutrition (previously Qualitas Plantarum) is an international journal that publishes reports of original research and critical reviews concerned with the improvement and evaluation of the nutritional quality of plant foods for humans, as they are influenced by: - Biotechnology (all fields, including molecular biology and genetic engineering) - Food science and technology - Functional, nutraceutical or pharma foods - Other nutrients and non-nutrients inherent in plant foods
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