采收前施用磷酸一钾改善冷藏樱桃番茄的果实质量和挥发性成分

IF 5.7 1区 农林科学 Q1 HORTICULTURE Horticultural Plant Journal Pub Date : 2024-09-16 DOI:10.1016/j.hpj.2023.12.016
Miriam Distefano, Fabrizio Cincotta, Francesco Giuffrida, Concetta Condurso, Antonella Verzera, Cherubino Leonardi, Rosario Paolo Mauro
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引用次数: 0

摘要

该试验研究了采收前叶面喷洒 KH2PO4(20 mmol - L-1)对樱桃番茄("Caravaggio"、"Sugarland "和 "Top Stellina")在 8.0 °C 下贮藏 0 (S0)、7 (S7) 和 14 (S14) 天后果实质量和成分(包括挥发性有机化合物)的影响。从 3 个基因型的平均值来看,KH2PO4 处理提高了果实的硬度、总可溶性固形物 (TSS)、可滴定酸度 (TA)、总酚和类胡萝卜素的浓度,以及果实的抗氧化能力(在 FRAP 检测中提高了 17%)。在 S7-S14 期间,对照组水果的 TSS、TSS/TA 比值和类胡萝卜素总量的降幅最大(分别为-17、-12 和-45),而经处理的水果 DPPH 的增幅最大(+12%)。施用 KH2PO4 后,32 种挥发性有机化合物中有 16 种得到促进,包括醛类己醛、(E)-2-己烯醛和(Z)-3-己烯醛以及类胡萝卜素((E)-柠檬醛、(E)-β-酮、香叶基丙酮和 6-甲基-5-庚烯-2-酮)。从 S0 到 S14,对照组果实中的几种挥发性有机化合物下降得更厉害,如己醛(-48%∖)和总醛(-42%∖),而在 S14 处理过的果实中,芳樟醇、香叶基丙酮和 6-甲基-5-庚烯-2-酮的浓度更高(分别为 1.06、52.50 和 79.27 μg - kg-1)。卡拉瓦乔'在 S14 阶段对 apocarotenoid 的减少作用最强,而'Top Stellina'对 KH2PO4 的反应更强(主要是对β-环柠檬醛、香叶基丙酮和萜烯/类萜物总量的反应),从而突出了基因型对其他实验因素反应的核心作用。尽管如此,这些结果表明,采收前适当施用 KH2PO4 可以保护冷藏樱桃番茄的特定商业、营养和品质特征。
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Preharvest applications of monopotassium phosphate to improve fruit quality and volatilome composition in cold-stored cherry tomatoes
The experiment addressed the effects of preharvest KH2PO4 foliar spraying (20 mmol · L−1) on fruit quality and composition (including volatile organic compounds, VOCs) of cherry tomatoes (‘Caravaggio’, ‘Sugarland’ and ‘Top Stellina’) after 0 (S0), 7 (S7) and 14 days (S14) of storage at 8.0 °C. On the average of the 3 genotypes, the KH2PO4 treatment improved fruit pressure firmness, total soluble solids (TSS), titratable acidity (TA), total phenols and carotenoids concentrations, along with the fruits' antioxidant capacity (by up to 17% for FRAP assay). Within the S7–S14 period, control fruits showed the highest reductions in TSS, TSS/TA ratio and total carotenoids (−17, −12 and −45, respectively), whereas treated fruits proved the strongest increase in DPPH (+12%). Sixteen out of 32 VOCs were promoted following KH2PO4 application, including the aldehydes hexanal, (E)-2-hexenal and (Z)-3-hexenal and the apocarotenoids (E)-citral, (E)-β-ionone, geranylacetone and 6-methyl-5-hepten-2-one. Proceeding from S0 to S14, several VOCs decreased more strongly in control fruits, as for hexanal (−48%∖) and total aldehydes (−42%∖, whereas at S14 treated fruits had higher concentrations of linalool, geranylacetone and 6-methyl-5-hepten-2-one (1.06, 52.50 and 79.27 μg · kg−1, respectively). ‘Caravaggio’ demonstrated the strongest apocarotenoid reduction at S14, whereas ‘Top Stellina’ was more responsive to KH2PO4 (mainly for β-cyclocitral, geranylacetone and total terpenes/terpenoids), thus highlighting the central role of the genotype in responding to other experimental factors. Nonetheless, these results suggest that proper preharvest KH2PO4 applications can preserve specific commercial, nutritional and quality traits of cold-stored cherry tomatoes.
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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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