改良气调包装鲜切莴苣中抗坏血酸、类胡萝卜素和糖的浓度和保留率

IF 5.7 1区 农林科学 Q1 HORTICULTURE Horticultural Plant Journal Pub Date : 2024-02-29 DOI:10.1016/j.hpj.2023.07.008
Jinita Sthapit Kandel, Ivan Simko, Ryan J. Hayes, Beiquan Mou
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引用次数: 0

摘要

鲜切莴苣广泛用于即食沙拉,以改良气调包装(MAP)出售。即使在改良气调包装中,鲜切生菜的保质期也很短,导致营养流失。生菜栽培品种在改良气调包装中的货架期表现出遗传变异,但它们在营养保留方面的变异却不为人知。我们对 50 个品种的抗坏血酸(AsA)、类胡萝卜素和糖的初始含量及其在贮藏中的保持率进行了评估。确定了一种或多种营养物质含量高和/或保持率高的品种。莴苣品种 "Floricos "的三种营养素含量都很高。三种营养素保持率相对较高的品种有'Salinas 88'、'Siskiyou'、'Solar'、SM09A、'Romance'和'Green Towers'。罗马菜栽培品种'Balady Barrage'、'Green Towers'和'Darkland'的所有测试养分初始含量相对较高,但保留率较好。AsA/胡萝卜素的初始浓度与保留率之间没有明显的相关性,这表明在莴苣营养改良计划中,除了含量外,营养素的保留率也应成为育种目标。利用皮尔逊相关系数进行的统计分析确定,组织退化(AUDePS)与所有测试营养素的保留率之间呈负相关[AsA为-0.52(< 0.0001),总胡萝卜素为-0.27(< 0.01),总糖为-0.59(< 0.0001)],这表明组织退化程度的增加会加剧营养素的衰减。各实验的广义遗传率()分别为:AsA 0.15,总胡萝卜素 0.23,总糖 0.50。鉴定营养成分含量高、货架期长、营养保留好的种质为莴苣产业和相关育种计划提供了宝贵的信息。
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Concentration and retention of ascorbic acid, carotenoids, and sugars in fresh-cut lettuce in modified atmosphere packaging
Fresh-cut lettuce is widely used in ready-to-eat salads sold in modified atmosphere packages (MAP). Even in MAP, fresh-cut lettuce has short shelf life that results in loss of nutrients. Lettuce cultivars exhibit genetic variation for shelf life in MAP, but their variation for nutrient retention is not known. Fifty accessions were evaluated for initial content of ascorbic acid (AsA), carotenoids, and sugars and their retention in storage. Accessions with high content and/or good retention of one or more nutrients were identified. The romaine accession ‘Floricos’ had high levels of all the three nutrients. Accessions with relatively high retention of all the three nutrients were ‘Salinas 88’, ‘Siskiyou’, ‘Solar’, SM09A, ‘Romance’, and ‘Green Towers’. Romaine cultivars, ‘Balady Barrage’, ‘Green Towers’, and ‘Darkland’ had relatively high initial levels of all tested nutrients and good rate of their retention. There was no clear correlation between initial AsA/carotene concentrations and their retention rates, suggesting that besides content, retention of nutrients should also be a breeding target in a lettuce nutritional improvement program. Statistical analyses with the Pearson’s correlation coefficient determined a negative relationship between tissue deterioration (AUDePS) and retention of all tested nutrients [ of -0.52 ( < 0.0001) for AsA, -0.27 ( < 0.01) for total carotene, and -0.59 ( < 0.0001) for total sugars], suggesting that an increase in tissue deterioration intensifies nutrient decay. Broad-sense heritability () across the experiments was 0.15 for AsA, 0.23 for total carotene, and 0.50 for total sugars. Identification of germplasm with high nutrient content, extended shelf life and good nutrient retention provides valuable information for the lettuce industry and associated breeding programs.
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来源期刊
Horticultural Plant Journal
Horticultural Plant Journal Environmental Science-Ecology
CiteScore
9.60
自引率
14.00%
发文量
293
审稿时长
33 weeks
期刊介绍: Horticultural Plant Journal (HPJ) is an OPEN ACCESS international journal. HPJ publishes research related to all horticultural plants, including fruits, vegetables, ornamental plants, tea plants, and medicinal plants, etc. The journal covers all aspects of horticultural crop sciences, including germplasm resources, genetics and breeding, tillage and cultivation, physiology and biochemistry, ecology, genomics, biotechnology, plant protection, postharvest processing, etc. Article types include Original research papers, Reviews, and Short communications.
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