Advance in Citrus Postharvest Management: Diseases, Cold Storage and Quality Evaluation

Strano, Maria Concetta; Altieri, Giuseppe; Admane, Naouel; FrancescoGenovese,; Renzo, Giovanni Carlo Di

doi:10.5772/66518

Cited by 27 publications

(21 citation statements)

References 64 publications

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“…The maintenance of an optimal temperature with high RH (90-95%) is the best scenario for citrus fruit storage. Other factors like fruit post-harvest sanitation, pre-cooling, and air velocity inside the storage room are important factors to maintain fruit shelf life [45]. Citrus species and varieties vary in their optimal storage temperature.…”

Section: Introductionmentioning

confidence: 99%

Salicylic Acid and Putrescine to Reduce Post-Harvest Storage Problems and Maintain Quality of Murcott Mandarin Fruit

2020

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Natural products have been used to improve citrus fruit quality and storability, which increase the fruit marketing period and exportation to distant markets. This study was conducted to evaluate the role of salicylic acid and putrescine on reducing post-harvest loss and maintaining the quality of stored Murcott mandarin. Fruit were harvested at 297–300 days from full bloom, and five 5-min dipping treatments were applied; salicylic acid (200 and 400 ppm), putrescine (50 and 100 ppm), and the control. One group of fruit was stored at 5 ± 1 °C and 90–95% relative humidity (RH), and the other group was stored at 23 ± 1 °C and 60–70% RH for 45 days. Quality attributes were recorded at harvest, 15, 30, and 45 days of storage. Weight loss and decay were significantly decreased with the application of salicylic acid and putrescine. Both materials were also effective maintaining fruit firmness, total soluble solids (TSS), acidity, TSS: acid ratio, and ascorbic acid during storage. Salicylic acid, especially at 400 ppm was more effective to reduce weight loss and decay, and to maintain fruit quality in comparison to putrescine treatments. It could be concluded that salicylic acid and putrescine are effectively delaying post-harvest deterioration rate and extending the storage period of Murcott mandarin fruit with acceptable quality.

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Section: Introductionmentioning

confidence: 99%

Salicylic Acid and Putrescine to Reduce Post-Harvest Storage Problems and Maintain Quality of Murcott Mandarin Fruit

2020

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“…Furthermore, some fungi strains have developed resistance to commonly used fungicides 6 . As antifungal resistance is becoming a significant concern, the search for new bioactive compounds has an important role to bypass the extensive use of fungicides 7 .…”

Section: Introductionmentioning

confidence: 99%

Antifungal potential of secondary metabolites involved in the interaction between citrus pathogens

Costa

Wassano

Angolini

et al. 2019

Sci Rep

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Numerous postharvest diseases have been reported that cause substantial losses of citrus fruits worldwide. Penicillium digitatum is responsible for up to 90% of production losses, and represent a problem for worldwide economy. In order to control phytopathogens, chemical fungicides have been extensively used. Yet, the use of some artificial fungicides cause concerns about environmental risks and fungal resistance. Therefore, studies focusing on new approaches, such as the use of natural products, are getting attention. Co-culture strategy can be applied to discover new bioactive compounds and to understand microbial ecology. Mass Spectrometry Imaging (MSI) was used to screen for potential antifungal metabolites involved in the interaction between Penicillium digitatum and Penicillium citrinum. MSI revealed a chemical warfare between the fungi: two tetrapeptides, deoxycitrinadin A, citrinadin A, chrysogenamide A and tryptoquialanines are produced in the fungi confrontation zone. Antimicrobial assays confirmed the antifungal activity of the investigated metabolites. Also, tryptoquialanines inhibited sporulation of P. citrinum. The fungal metabolites reported here were never described as antimicrobials until this date, demonstrating that co-cultures involving phytopathogens that compete for the same host is a positive strategy to discover new antifungal agents. However, the use of these natural products on the environment, as a safer strategy, needs further investigation. This paper aimed to contribute to the protection of agriculture, considering health and ecological risks.

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“…is one of the most cultivated fruits worldwide. In 2015, the world citrus production was around 121 million tons (Strano et al, 2017), which was 20.0% of total fruit production. Harvested fruits are usually stored before they reach the market for fresh consumption.…”

Section: Introductionmentioning

confidence: 99%

Antifungal activity and action mechanisms of yeasts isolates from citrus against Penicillium italicum

Cunha

Ferraz

Wehr

et al. 2018

International Journal of Food Microbiology

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Penicillium italicum (Blue mold) is a major postharvest disease of citrus. An alternative to controlling the disease is through the use of yeasts. The purpose of the present study was to screen effective yeast antagonists against P. italicum, isolated from soil, leaves, flowers, and citrus fruits, to assess the action mechanisms of the yeast isolates that were demonstrated to be effective for biocontrol, and to identify the most effective yeast isolates for the biocontrol of blue mold. The in vitro assays showed that six yeast strains inhibited up to 90% of the pathogen's mycelial growth. In vivo assays, evaluating the incidence of blue mold on sweet oranges, the strains ACBL-04, ACBL-05, ACBL-10 and ACBL-11 were effective, demonstrating the potential for the blue mold control when preventively applied, whereas the ACBL-08 strain showed a high potential to preventive and curative applications. Additional studies on the modes of action of these yeast strains showed that most of the evaluated yeast strains did not produce antifungal substances, in sufficient quantities to inhibit the pathogen growth. Competition for nutrients was not a biocontrol strategy used by the yeast strains. The 'killer' activity might be the main action mechanism involved in P. italicum biocontrol. This study indicated that the multiple modes of action against the pathogen presented by yeasts may explain why these strains provided P. italicum control under in vitro and in vivo conditions. However, further studies in future might be able to elucidate the 'killer' activity and its interaction with pathogen cells and the bioproduct production using Candida stellimalicola strains for control postharvest diseases.

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Advance in Citrus Postharvest Management: Diseases, Cold Storage and Quality Evaluation

Cited by 27 publications

References 64 publications

Salicylic Acid and Putrescine to Reduce Post-Harvest Storage Problems and Maintain Quality of Murcott Mandarin Fruit

Salicylic Acid and Putrescine to Reduce Post-Harvest Storage Problems and Maintain Quality of Murcott Mandarin Fruit

Antifungal potential of secondary metabolites involved in the interaction between citrus pathogens

Antifungal activity and action mechanisms of yeasts isolates from citrus against Penicillium italicum

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