Postharvest ascorbic acid application maintained physiological and antioxidant responses of Guava (Psidium guajava L.) at ambient storage

Azam, Muhammad; Hameed, Laraib; Qadri, Rashad; Ejaz, Shaghef; Ali, Aslam; Khan, Muhammad Imran; Zhang, Jiukai; Nafees, Muhammad; Ahmad, Ishtiaq; Ghani, M. A.; Jiao, Chen; Anjum, Naveeda

doi:10.1590/fst.19820

Cited by 17 publications

(11 citation statements)

References 29 publications

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“…Peroxisomes are known to respond to salt stress by varying degrees, which is related to the ascorbate glutathione cycle [70]. A previous study [71] also revealed that the activities of catalase (CAT), peroxidase (POD), and ascorbic peroxidase (VC) are all increased with the increase in salt concentration. Furthermore, studies have shown that the peroxisome membrane protein from the PEX11 family is involved in regulating the number and size of peroxisomes in plant cells [72].…”

Section: Ros In Peroxisomesmentioning

confidence: 99%

ROS Homeostasis and Plant Salt Tolerance: Plant Nanobiotechnology Updates

Liu

et al. 2021

Sustainability

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Salinity is an issue impairing crop production across the globe. Under salinity stress, besides the osmotic stress and Na+ toxicity, ROS (reactive oxygen species) overaccumulation is a secondary stress which further impairs plant performance. Chloroplasts, mitochondria, the apoplast, and peroxisomes are the main ROS generation sites in salt-stressed plants. In this review, we summarize ROS generation, enzymatic and non-enzymatic antioxidant systems in salt-stressed plants, and the potential for plant biotechnology to maintain ROS homeostasis. Overall, this review summarizes the current understanding of ROS homeostasis of salt-stressed plants and highlights potential applications of plant nanobiotechnology to enhance plant tolerance to stresses.

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Section: Ros In Peroxisomesmentioning

confidence: 99%

ROS Homeostasis and Plant Salt Tolerance: Plant Nanobiotechnology Updates

Liu

et al. 2021

Sustainability

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“…1-MCP has a pronounced effect on fruit ripening and significantly maintains high fruit firmness, maintains fruit quality and reduces the incidence of decay [4]. Other commonly used techniques, such as edible coating treatments, modified atmosphere, and controlled atmosphere storage, ascorbic acid treatment, gamma irradiation, fungicides, calcium chloride and nitric oxide, can reduce the fruit peel browning index, maintain the fruit quality and extend the shelf life of guava fruit [1,3,[8][9][10][11][12][13].…”

Section: Introductionmentioning

confidence: 99%

Melatonin Treatment Improves Postharvest Preservation and Resistance of Guava Fruit (Psidium guajava L.)

Fan

Xiong

Lei

et al. 2022

Foods

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Guava fruit has a short postharvest shelf life at room temperature. Melatonin is widely used for preservation of various postharvest fruit and vegetables. In this study, an optimal melatonin treatment (600 μmol·L−1, 2 h) was identified, which effectively delayed fruit softening and reduced the incidence of anthracnose on guava fruit. Melatonin effectively enhanced the antioxidant capacity and reduced the oxidative damage to the fruit by reducing the contents of superoxide anions, hydrogen peroxide and malondialdehyde; improving the overall antioxidant capacity and enhancing the enzymatic antioxidants and non-enzymatic antioxidants. Melatonin significantly enhanced the activities of catalase, superoxide dismutase, ascorbate peroxidase and glutathione reductase. The contents of total flavonoids and ascorbic acid were maintained by melatonin. This treatment also enhanced the defense-related enzymatic activities of chitinase and phenylpropanoid pathway enzymes, including phenylalanine ammonia lyase and 4-coumaric acid-CoA-ligase. The activities of lipase, lipoxygenase and phospholipase D related to lipid metabolism were repressed by melatonin. These results showed that exogenous melatonin can maintain the quality of guava fruit and enhance its resistance to disease by improving the antioxidant and defense systems of the fruit.

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“…In present study, control fruit exhibited more weight loss than treated ones which was probably due to higher moisture loss, respiration, and transpiration rate (Figure 1b & c). Mostly, higher doses of respiration reduce respiration rate and metabolic activities which lead to minimize the weight loss of fruits (Tariq et al, 2004;Boynton et al, 2006;Azam et al, 2020).…”

Section: Discussionmentioning

confidence: 99%

Postharvest application of gamma irradiation affects fruit quality and antioxidant enzymes activities of ‘kinnow’ mandarin fruits during cold storage

et al. 2023

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Food safety with maintained fruit quality is an important challenge for postharvest industry of citrus fruits. The present study was designed to check the effects of gamma irradiation on postharvest fruit quality of 'Kinnow' mandarin stored at 5 ± 1 °C and 90 ± 5% Relative Humidity. In the first experiment, fruits were exposed to different doses of gamma radiation (100-500 Gy), while after analyzing the results of first experiment, in the second experiment fruits were treated with 500, 600, 800 and 1000 Gy of gamma radiation. It was observed that higher doses of gamma irradiation exhibited lower weight loss and disease incidence as well as inhibiting the increase of soluble solid content (SSC) and retained higher titratable acidity (TA) and lower SSC: TA ratio. After 90 days of storage, maximum levels ascorbic acid, total phenolic contents and total antioxidants along with catalase (CAT), peroxidase (POD) and superoxide dismutase (SOD) activities were recorded higher in fruits treated with 800 Gy. These fruit also exhibited higher score of taste, aroma and texture during storage. Overall results suggest that pre-storage treatment of 800 Gy is the most effective treatment and have potential application for quality management of 'Kinnow' mandarin under long term cold storage.

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Postharvest ascorbic acid application maintained physiological and antioxidant responses of Guava (Psidium guajava L.) at ambient storage

Cited by 17 publications

References 29 publications

ROS Homeostasis and Plant Salt Tolerance: Plant Nanobiotechnology Updates

ROS Homeostasis and Plant Salt Tolerance: Plant Nanobiotechnology Updates

Melatonin Treatment Improves Postharvest Preservation and Resistance of Guava Fruit (Psidium guajava L.)

Postharvest application of gamma irradiation affects fruit quality and antioxidant enzymes activities of ‘kinnow’ mandarin fruits during cold storage

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