β-Ionone Treatment Enhances the Antioxidant Capacity in Postharvest Broccoli (Brassica oleracea L. var. Italica) by Maintaining the Levels of Bioactive Substances

Foods, Journal Year: 2025, Volume and Issue: 14(5), P. 762 - 762

Published: Feb. 24, 2025

Broccoli is prone to nutrient loss during postharvest storage due its high respiratory metabolism. In this study, we investigated the effects of 0.1 mm β-ionone on bioactive substances and antioxidant capacity broccoli. We found that decline in scavenging rates 1,1-diphenyl-2-picrylhydrazyl 2,2'-azinobis-(3-ethylbenzthiazoline-6-sulphonate) radicals was delayed treated florets. This delay attributed treatment, which upregulated expression biosynthetic genes related glucosinolates riboflavin broccoli, thereby slowing these nutrients. Additionally, treatment increased transcript levels anabolic while reducing encoding enzymes involved catabolism ascorbic acid (AsA) glutathione (GSH), resulting higher AsA GSH broccoli compared control. Overall, enhanced by delaying These findings provide first evidence exogenous helps preserve horticultural products.

Language: Английский

Post-Harvest Quality Changes and Molecular Responses of Epidermal Wax in ‘Munage’ Grapes with Botrytis cinerea Infection

International Journal of Molecular Sciences, Journal Year: 2025, Volume and Issue: 26(8), P. 3468 - 3468

Published: April 8, 2025

This study aimed to investigate the impact of Botrytis cinerea (B. cinerea) on post-harvest quality 'Munage' grapes and their molecular mechanism. The results showed that B. significantly reduced grapes, which was manifested by an increase in incidence rot rate, a significant weight loss rate fruit color difference, decrease firmness. In addition, infection changed reactive oxygen species antioxidant enzyme activities including increasing H2O2 content O2- generation as well changing superoxide dismutase (SOD), glutathione (GSH), catalase (CAT), peroxidase (POD) activities. also wax structure causing completely dissolve disappear reducing relative components. Through RNA-seq analysis, it found after infection, 49 differentially expressed genes (DEGs) related fatty acid synthesis, extension, cutin transport up-regulation or down-regulation, 12 different transcription factors (TFs) differential expression. These TFs were correlated with DEGs synthesis metabolism, indicating they may play important role epidermal changes caused cinerea. revealed mechanism provided scientific basis for grape disease prevention maintenance.

Language: Английский

Sulfur dioxide enhances the resistance of postharvest grape berries to gray mold through hydrogen peroxide signaling

Postharvest Biology and Technology, Journal Year: 2024, Volume and Issue: 221, P. 113325 - 113325

Published: Nov. 23, 2024

Language: Английский