Effects of Chitosan Coating on the Storage of Peach, Japanese Pear, and Kiwifruit.

Du, Jianming; Gemma, Hiroshi; Iwahori, Shuichi

doi:10.2503/jjshs.66.15

Cited by 139 publications

(83 citation statements)

References 14 publications

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“…This is an issue of particular concern for human health because of the temporal proximity of use to the point of consumption of food. Fungal rots have been successfully prevented by applying chitosan treatments in a range of fruits, including; apples, cherries, citrus, grapes, kiwifruit, litchi, papaya, peaches, pears, and strawberries [207,[218][219][220][221][222][223][224][225]. El Ghaouth et al [218] found that chitosan was antifungal when applied on its own, but also improved the action of the chitinolytic biological control agent Candida saitoana, and as such is line with the findings of improved efficacy of biopesticides on field-grown crops by chitin-based treatments.…”

Section: Use Of Chitin-based Treatments In Non-field Agricultural Sysmentioning

confidence: 99%

A Review of the Applications of Chitin and Its Derivatives in Agriculture to Modify Plant-Microbial Interactions and Improve Crop Yields

2013

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Abstract:In recent decades, a greater knowledge of chitin chemistry, and the increased availability of chitin-containing waste materials from the seafood industry, have led to the testing and development of chitin-containing products for a wide variety of applications in the agriculture industry. A number of modes of action have been proposed for how chitin and its derivatives can improve crop yield. In addition to direct effects on plant nutrition and plant growth stimulation, chitin-derived products have also been shown to be toxic to plant pests and pathogens, induce plant defenses and stimulate the growth and activity of beneficial microbes. A repeating theme of the published studies is that chitin-based treatments augment and amplify the action of beneficial chitinolytic microbes. This article reviews the evidence for claims that chitin-based products can improve crop yields and the current understanding of the modes of action with a focus on plant-microbe interactions.

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Section: Use Of Chitin-based Treatments In Non-field Agricultural Sysmentioning

confidence: 99%

A Review of the Applications of Chitin and Its Derivatives in Agriculture to Modify Plant-Microbial Interactions and Improve Crop Yields

2013

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“…It is considered as an ideal preservative coating because it has a disease suppressive effect, resulting from both physical and biochemical mechanisms. The physical properties of the polymer allow it to produce a film on the surface of treated fruit Iwahori, 1998), and has also the potential to prolong the storage life of many fruits, such as peach, Japanese pear, kiwifruit, strawberry and sweet cherry Iwahori, 1997;EL Ghaouth;Ponnampalam;Boulet, 1991;Romanazzi;Nigro;Ippolito, 2003). Chitosan also induces chitinase activity, and elicits phytoalexins and defense barriers in the host tissues (El Ghaouth et al,1992), as well as the defense responses in several plant systems.…”

Section: Introductionmentioning

confidence: 99%

Pre-harvest application of calcium chloride and chitosan on fruit quality and storability of ‘Early Swelling’ peach during cold storage

et al. 2017

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Studies related with the storage of peach fruits have received great relevance in Egypt. In this study, the effect of pre-harvest sprays of calcium chloride and chitosan, separately and in combination, on quality attributes and storability of peach fruits stored at 0±1 °C was studied. 'Early Swelling' peach trees were sprayed twice with 1% or 2% calcium chloride. The first spraying was at pea stage, while the second one was performed at 10 days before harvesting. Chitosan sprays were performed at 0.5 or 1%, alone or in combination with 1 and 2% calcium chloride, at 10 days before harvesting. Untreated trees served as control. Fruits were harvested at maturity stage, then packaged and stored at 0±1 °C and 85-90% of relative humidity. Fruit physical and chemical properties were evaluated at 7-day intervals. Results showed that pre-harvest application with 2% CaCl 2 +1% chitosan was most effective in minimizing weight loss (%) and decay (%), as well as in maintaining maximum firmness and lengthening shelf life. Fruit color was not affected by any of the treatments, while untreated fruits and calcium chloride treatment alone, at both applied concentrations, maintained higher total soluble solids (TSS, %), total phenolic content, and lower titratable acidity percentage.Index terms: Alternative chemicals; CaCl 2 ; quality attributes. RESUMOEstudos relacionados ao armazenamento de pêssego tem sido considerado de grande relevância no Egito. Neste estudo, o efeito da pulverização pré-colheita com cloereto de calico e quitosano, isoladamente ou em conjunto, na qualidade e na capacidade de armazenamento de frutos de pessegueiro armazenados a 0±1 °C foi avaliada. Frutos da variedade 'Early Swelling' foram tratados com 1,0 ou 2,0% de cloreto de cálcio. O primeiro tratamento foi aplicado num estado precoce de formação do fruto enquanto o segundo foi aplicado 10 dias antes da colheita. Quitosano foi aplicado nas concentrações de 0,5 ou 1,0%, isoladamente ou em combinação com 1,0% ou 2,0% de cloreto de cálcio também 10 dias antes da colheita. Árvores não tratadas serviram como controle. Os frutos foram colhidos quando maduros, empacotados e mantidos a 0±1 °C e sob condições de humidade relativa de 85-90%. Propriedades físicas e químicas dos frutos foram avaliadas em intervalos de 7 dias. Os resultados mostraram que a aplicação de 2% CaCl 2 + 1% quitosano foi a mais eficaz em minimizar a perda de peso (%) e a senescência (%), bem como na manutenção da rigidez e aumento do período de vida em prateleira. A cor dos frutos não foi afectada por nenhum dos tratamentos enquanto frutos não tratados e cloreto de cálcio isoladamente, em ambas as concentrações, mantiveram um elevado teor de sólidos solúveis totais (TSS, %), elevado teor de fenóis e reduzida percentagem de acidez de titulação.Termos para indexação: Químicos alternativos; CaCl 2 ; atributos qualitativos.

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“…The purified chitosan was then air-dried and stored at room temperature until required. For incorporation into media, purified chitosan was dissolved in 0.25 N HCl, then adjusted to pH 5.6 with 2 N NaOH (Du et al, 1997). Chitosan was incorporated into potato dextrose agar at concentrations of 0, 1, 2, 3, 4, 5 and 6 mg ml -1 .…”

Section: -Effect Of Chitosan Concentrations On the Mycelial Growth Omentioning

confidence: 99%

Role of Chitosan Extracted from Shrimp Waste in Controlling Tomato Blackmold Disease Caused by Alternaria alternata

Zian

2016

Journal of Applied Plant Protection

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Tomato suffers from several diseases at all stages of its life. Blackmold, caused by Alternaria alternate (Fr.) Keissler is one of the most important postharvest disease of tomato. The effect of various concentrations of chitosan solution on A. alternata the causal agent of blackmold disease of tomato fruits on mycelial growth was studied. The isolate was tested in vitro using PDA amended with seven concentrations of chitosan (0, 1, 2, 3, 4, 5 and 6 mg ml -). Chitosan significantly (P < 0.05) inhibited the radial mycelial growth of this fungus by 67.4% at 6 mg ml 1 concentration. Tomato fruits treated with aqueous solution of chitosan compared with the Ipromise ® fungicide (Thiophonate-methyl 20% + Iprodione 20%) was artificially inoculated with A. alternata and incubated at 8, 18 and 28°C. Lesion diameters and total phenolic contents were recorded 7 and 14-days after inoculation. Chitosan also, significantly (P < 0.05) reduced the lesion diameters of tomato fruits which were smaller for all treatments when stored at 8°C compared to the control treatment. Chitosan treatment resulted in the highest increase in total phenolic contents over the untreated control. Whereas a less increase in total phenolic contents was recognized in fungicide treatment. In all treatments, total phenolic contents increased first and declined at the end of storage. The results of this study indicate that chitosan was a alternative safe coating method especially when stored at low temperature degree for prevents tomato fruits blackmold disease which causes economic losses during transportation, marketing and storage.

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Effects of Chitosan Coating on the Storage of Peach, Japanese Pear, and Kiwifruit.

Cited by 139 publications

References 14 publications

A Review of the Applications of Chitin and Its Derivatives in Agriculture to Modify Plant-Microbial Interactions and Improve Crop Yields

A Review of the Applications of Chitin and Its Derivatives in Agriculture to Modify Plant-Microbial Interactions and Improve Crop Yields

Pre-harvest application of calcium chloride and chitosan on fruit quality and storability of ‘Early Swelling’ peach during cold storage

Role of Chitosan Extracted from Shrimp Waste in Controlling Tomato Blackmold Disease Caused by Alternaria alternata

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