Pre-Harvest Application of Multi-Walled Carbon Nanotubes Improves the Antioxidant Capacity of ‘Flame Seedless’ Grapes during Storage

Riye Sha, Shuhua Zhu, Linnan Wu, Xujiao Li, Huanhuan Zhang, Dongdong Yao, Qi Lv, Fangxia Wang, Fengyun Zhao, Pengcheng Li and Kun Yu
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Riye Sha: The Key Laboratory of Characteristics of Fruit and Vegetable Cultivation and Utilization of Germolasm Resources of the Xinjiang Production and Construction Crops, Department of Horticulture, College of Agriculture, Shihezi University, Shihezi 832003, China
Shuhua Zhu: College of Chemistry and Material Science, Shandong Agricultural University, Taian 271018, China
Linnan Wu: The Key Laboratory of Characteristics of Fruit and Vegetable Cultivation and Utilization of Germolasm Resources of the Xinjiang Production and Construction Crops, Department of Horticulture, College of Agriculture, Shihezi University, Shihezi 832003, China
Xujiao Li: The Key Laboratory of Characteristics of Fruit and Vegetable Cultivation and Utilization of Germolasm Resources of the Xinjiang Production and Construction Crops, Department of Horticulture, College of Agriculture, Shihezi University, Shihezi 832003, China
Huanhuan Zhang: The Key Laboratory of Characteristics of Fruit and Vegetable Cultivation and Utilization of Germolasm Resources of the Xinjiang Production and Construction Crops, Department of Horticulture, College of Agriculture, Shihezi University, Shihezi 832003, China
Dongdong Yao: The Key Laboratory of Characteristics of Fruit and Vegetable Cultivation and Utilization of Germolasm Resources of the Xinjiang Production and Construction Crops, Department of Horticulture, College of Agriculture, Shihezi University, Shihezi 832003, China
Qi Lv: The Key Laboratory of Characteristics of Fruit and Vegetable Cultivation and Utilization of Germolasm Resources of the Xinjiang Production and Construction Crops, Department of Horticulture, College of Agriculture, Shihezi University, Shihezi 832003, China
Fangxia Wang: The Key Laboratory of Characteristics of Fruit and Vegetable Cultivation and Utilization of Germolasm Resources of the Xinjiang Production and Construction Crops, Department of Horticulture, College of Agriculture, Shihezi University, Shihezi 832003, China
Fengyun Zhao: The Key Laboratory of Characteristics of Fruit and Vegetable Cultivation and Utilization of Germolasm Resources of the Xinjiang Production and Construction Crops, Department of Horticulture, College of Agriculture, Shihezi University, Shihezi 832003, China
Pengcheng Li: Xinjiang Academy of Agricultural Sciences, Shihezi 832000, China
Kun Yu: The Key Laboratory of Characteristics of Fruit and Vegetable Cultivation and Utilization of Germolasm Resources of the Xinjiang Production and Construction Crops, Department of Horticulture, College of Agriculture, Shihezi University, Shihezi 832003, China

Sustainability, 2022, vol. 14, issue 15, 1-16

Abstract: As a widely distributed fruit, grapes are susceptible to oxidative damage during storage and transportation, resulting in declining quality and commodity value. This study aimed to investigate the effects of preharvest application of different concentrations of multi-walled carbon nanotubes (MWCNTs) on the postharvest quality of ‘Flame Seedless’ grapes. The results showed that low-concentration (25 and 50 mg L −1 ) MWCNTs treatments maintained the comprehensive quality index, firmness, soluble sugar, titratable acid, pH value, and ascorbic acid (AsA) content of grapes. MWCNTs at 25 and 50 mg L −1 increased the activities of peroxidase (POD), catalase (CAT), superoxide dismutase (SOD), and ascorbic acid (APX). Furthermore, MWCNTs reduced the malondialdehyde (MDA) content and decreased the accumulation of excessive reactive oxygen species (ROS) in grape peel and pulp tissues. In addition, transmission electron microscopy (TEM) images demonstrated that MWCNTs were absorbed by parenchymal cells in the grape peel and pulp through the epidermal cell layer. MWCNTs with a specific concentration can be used as a new inducer for the biosynthesis of antioxidants to reduce oxidative damage in grapes during storage.

Keywords: table grape; multi-walled carbon nanotubes; OXIDATIVE damage (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2022
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