Effects of storage temperature on the quality of minimally processed pumpkin (Cucurbita moschata Duch) treated with ethanol and chitosan

Huynh, Anh T.; Nguyen, Ha V. H.

doi:10.22077/jhpr.2020.3318.1140

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	Effects of storage temperature on the quality of minimally processed pumpkin (Cucurbita moschata Duch) treated with ethanol and chitosan
Journal of Horticulture and Postharvest Research
مقاله 1، دوره 4، Special Issue - Fresh-cut Products - شماره پیاپی 10، تیر 2021، صفحه 1-12 اصل مقاله (1.32 M)
نوع مقاله: Original Article
شناسه دیجیتال (DOI): 10.22077/jhpr.2020.3318.1140
نویسندگان
Anh T. Huynh¹؛ Ha V. H. Nguyen^* ¹^{، 2}
¹Department of Food Technology, School of Biotechnology, International University, Ho Chi Minh city, Vietnam
²Vietnam National University, Ho Chi Minh City, Vietnam
چکیده
Purpose: This investigation focused on the most suitable temperature for fresh- cut pumpkin with harmonization between benefits and drawbacks. Research method: Fresh-cut pumpkin cubes were pre–treated with 30% ethanol and 1% chitosan, then stored for 15 days at different temperatures (5 °C or T5, 10 °C or T10, 15°C or T15 and 25°C or T25). Findings: At refrigeration temperature (below 10 °C), fresh-cut pumpkin could maintain its overall visual quality until the end of storage duration (15 days). The difference in firmness and total carotenoid content between T5 and T10 suggested chilling injury occurrence when pumpkin was stored under 10°C. Besides, other nutritional parameters of these two treatments such as weight loss, total soluble solid content, total phenolic compounds and antioxidant capacity did not significantly differ from each other. Regardless of their nutritional composition, T15 and T25 became disqualified for consumption on day 3 and day 6, respectively due to dramatic shrinkage and microbial development. Limitations: Storage duration should be extended until all treatments reach unacceptable quality.The activity of cell wall degrading enzymes and antioxidant enzymes during storage should be investigated to support this study’s findings. Originality/Value: The preservation of fresh-cut pumpkin can be elevated to 10 °C to avoid chilling damage without altering much of their nutritional value.
کلیدواژه‌ها
fresh–cut؛ postharvest quality؛ winter squash

مراجع
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Effects of storage temperature on the quality of minimally processed pumpkin (Cucurbita moschata Duch) treated with ethanol and chitosan