عنوان
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Nano-ZnO/carboxymethyl cellulose-based active coating impact on ready-to-use pomegranate during cold storage
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نوع پژوهش
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مقاله چاپشده در مجلات علمی
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کلیدواژهها
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Edible coating, Microbial load, Fruit weight loss, Minimally processed
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چکیده
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Minimally processed pomegranate rapidly loses its overall quality because of high water loss and microbial contamination. Nano-ZnO in combination with carboxymethyl cellulose (CMC) coating was used on pomegranate arils. Arils were dipped for 4 min in distilled water (control), 0.1 or 0.2% (w/v) nano-ZnO suspension and then ZnO treated arils were coated with 0.5% (w/v) CMC and stored for 12 days at 4 ◦C. Coatings decreased total yeast + mold during 12 days of storage while total mesophilic bacteria was decreased during 6 days of storage. Coatings decreased weight loss and also the greatest juice percent was in coated arils. Soluble solids content decreased during storage with no significant difference between treatments. CMC + 0.2% nano-ZnO suppressed total phenol changes. Total anthocyanin, vitamin C, and antioxidant capacity were higher in coated arils. These findings suggest that nano-ZnO + CMC coating has the potential to extend minimally processed pomegranate storage life.
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پژوهشگران
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رسول امینی (نفر دوم)، محمود کوشش صبا (نفر اول)
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