Efficacy of washing treatment for extending the post-harvest shelf-life of papaya (Carica papaya)

Gunathilake, Dmc Champathi; Ak, Tiwari; Kahandawala, KA Tharanga

doi:10.22271/chemi.2018.v6.i4ai.05

Cited by 5 publications

(4 citation statements)

References 3 publications

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“…Therefore, fruits and vegetables harvesting need to consider correct maturity based on subsequent post-harvest process and transport requirement. 15,19 Fruits can be divided into two groups based on their ripening behavior upon harvesting. Those not able to continue proper ripening process once removed from the plant (such as cherry, citrus fruits, grape, pineapple and pomegranate), and those able to continue ripening process off the plant (eg.…”

Section: Harvesting At Correct Maturitymentioning

confidence: 99%

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Reducing post-harvest losses in fruits and vegetables for ensuring food security – Case of Sri Lanka

Rajapaksha¹,

Gunathilake²,

Pathirana³

et al. 2021

MOJFPT

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In Sri Lanka, 70% of 21 million population live in non-urban areas, and agriculture provides livelihood for approximately 40% of them. The agricultural marketing process in the country is a complex operation due to services and functions involved in moving a crop product from where it was produced to where it would finally be consumed. Further, with a wide range of agricultural crops being produced, post-harvest handling process create different degrees of quantitative and qualitative losses in a complex market chain, which are estimated at 20% to 40% for vegetables and 30% - 40% for fruits. Improper and non-scientific post-harvest practices and handling, gaps in integration of cold chain practices & elements with post-harvest process, and lack of knowledge & awareness on many related aspects at grass root farmer level etc. appear to contribute to losses that finally prevent due economic benefits reaching the small-scale producer. In order to increase the effectiveness of post-harvest process handling of fruit and vegetables, appropriate corrective measures targeting small scale producers as well as commercial scale producers need to be popularized and practiced. At small scale producer level, promotion of appropriate low-cost post-harvest practices and procedures, facilitating low-cost cold chain elements and user-friendly information flow mechanism on market situation would certainly help avoid some of the steps that lead to losses. Monitoring system of commercial post-harvest handling process that ensure scientific bulk handling, storage and transportation of fruit and vegetables, properly designed economic centers with well regulated environmentcontrolled storages etc. would greatly reduce loses in bulk handling, ensuring better food security in the island.

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Section: Harvesting At Correct Maturitymentioning

confidence: 99%

“…However, depending on the type of produce, some cold chain steps/operations may not be essential. Yet careful handling of the produce, suitably control of temperature and humidity in storages are an essential part of the process to minimize losses [3][4][5][6]15,16. Some of the steps in the Fig3are discussed in subsequent sections.…”

mentioning

confidence: 99%

Reducing post-harvest losses in fruits and vegetables for ensuring food security – Case of Sri Lanka

Rajapaksha¹,

Gunathilake²,

Pathirana³

et al. 2021

MOJFPT

Self Cite

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“…The recent studies revealed that papaya post-production losses are between 25%-40%, particularly in developing countries (Gunathilake et al, 2018). Mechanical damages during harvesting, transportation, and post-harvest diseases cause significant loss of papaya fruits.…”

Section: Introductionmentioning

confidence: 99%

Development of spray drying technique for papaya (<em>Carica papaya</em>) fruit juice powder

Wickramasinghe

Fernando²,

Perera

et al. 2022

J. Dry Zone Agric.

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Post-harvest losses of Carica papaya are considerably high throughout the supply chain due to variety of reasons. Spray drying is one of the potential preservation technologies to address this issue. Therefore, this research was conducted to identify the most acceptable carrier agent for papaya spray drying. The final quality of the product was tested with Maltodextrin and Glucose syrup with three different concentrations and at three different temperatures. Processing temperatures of 60 °C, 80 °C, and 100 °C were employed, with three concentrations (7.4%, 11.5%, and 15.3%) of carrier agents. The results revealed that temperature and carrier agent concentration had no effect on ascorbic acid, solubility, and pH (P>0.05). But the titratable acidity, moisture content and rehydration duration of dried powder differed. With increasing temperature, ascorbic acid and moisture content decreased while the pH of the solution increased with temperature and concentration.

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“…The most common fungal disease of papaya fruit is anthracnose, which is caused by Colletotrichum spp. and can result in 30–50% postharvest losses ( Gunathilake et al, 2018 ). Several technologies have been used to extend the postharvest shelf life of fruit, including fungicides, low-temperature storage, thermal processing, diverse packaging conditions, and preserving compounds obtained from natural sources that are “generally recognized as safe” ( Droby and Wisniewski, 2018 ).…”

Section: Introductionmentioning

confidence: 99%

Chitosan Coating Enriched With Ruta graveolens L. Essential Oil Reduces Postharvest Anthracnose of Papaya (Carica papaya L.) and Modulates Defense-Related Gene Expression

et al. 2021

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Anthracnose of papaya (Carica papaya L.) caused by the fungus Colletotrichum spp. is one of the most economically important postharvest diseases. Coating with chitosan (CS) and Ruta graveolens essential oil (REO) might represent a novel eco-friendly method to prevent postharvest anthracnose infection. These compounds show both antimicrobial and eliciting activities, although the molecular mechanisms in papaya have not been investigated to date. In this study, the effectiveness of CS and REO alone and combined (CS-REO) on postharvest anthracnose of papaya fruit during storage were investigated, along with the expression of selected genes involved in plant defense mechanisms. Anthracnose incidence was reduced with CS, REO, and CS-REO emulsions after 9 days storage at 25°C, by 8, 21, and 37%, respectively, with disease severity reduced by 22, 29, and 44%, respectively. Thus, McKinney’s decay index was reduced by 22, 30, and 44%, respectively. A protocol based on reverse transcription quantitative real-time PCR (RT-qPCR) was validated for 17 papaya target genes linked to signaling pathways that regulate plant defense, pathogenesis-related protein, cell wall-degrading enzymes, oxidative stress, abiotic stress, and the phenylpropanoid pathway. CS induced gene upregulation mainly at 6 h posttreatment (hpt) and 48 hpt, while REO induced the highest upregulation at 0.5 hpt, which then decreased over time. Furthermore, CS-REO treatment delayed gene upregulation by REO alone, from 0.5 to 6 hpt, and kept that longer over time. This study suggests that CS stabilizes the volatile and/or hydrophobic substances of highly reactive essential oils. The additive effects of CS and REO were able to reduce postharvest decay and affect gene expression in papaya fruit.

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Efficacy of washing treatment for extending the post-harvest shelf-life of papaya (Carica papaya)

Cited by 5 publications

References 3 publications

Reducing post-harvest losses in fruits and vegetables for ensuring food security – Case of Sri Lanka

Reducing post-harvest losses in fruits and vegetables for ensuring food security – Case of Sri Lanka

Development of spray drying technique for papaya (<em>Carica papaya</em>) fruit juice powder

Chitosan Coating Enriched With Ruta graveolens L. Essential Oil Reduces Postharvest Anthracnose of Papaya (Carica papaya L.) and Modulates Defense-Related Gene Expression

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