Comparison of some edible coatings and paper bag on preservation of cucumber (Cucumis sativus L.) during storage

Document Type : Full Article


Department of Horticultural Science, School of Agriculture, Shiraz University. Shiraz, I. R. Iran


 To investigate the effect of some edible coatings on weight loss and storage life of two thorny cucumber cultivars including Tiba’ and ‘Kurage’ cultivars, this research was conducted in a factorial experiment using a completely randomized design with three replications. The experiment comprised five treatments including three edible coatings (olive oil, almond oil and liquid paraffin), packing in brown paper bag without any edible coating and control treatment. All of the treated samples were placed in a thin plastic container having eight holes and control samples were placed in a plastic box solely. Packages were stored at 10 ºC and 85-90% RH for 14 days. The results showed that ‘Tiba’ cultivar had higher firmness than ‘Kurage’ cultivar. Cucumbers coated with almond oil had the least weight loss in comparison with other coating materials, but the differences between two cultivars were not significant. The highest color difference was belonged to the paper bag treatment which had the significant difference with control and the other coating treatments. Cucumbers placed in paper bag resulted in the highest greenness value. In conclusion, both thorny cucumber cultivars covered with coating materials showed the best appearance and luster shape which was related to the effects of edible coatings on reducing water loss, chlorophyll degradation and softening.


Article Title [فارسی]

کاربردبرخی پوشش‌های خوراکی بر نگهداری خیار در مدت انبارمانی

Authors [فارسی]

  • سحر صداقت
  • مجید راحمی
گروه علوم باغبانی، دانشکده کشاورزی، دانشگاه شیراز، شیراز، ج. ا. ایران
Abstract [فارسی]

به منظور بررسی تاثیر برخی پوشش ­های خوراکی برکاهش وزن و عمر انباری دو رقم خیار خاردار "کوراژ" و "تیبا "، پژوهشی بصورت فاکتوریل در قالب طرح کاملا تصادفی با سه تکرار طراحی شد. این پژوهش دارای 5 تیمار شامل سه پوشش خوراکی (روغن زیتون، روغن بادام و پارافین خوراکی)، بسته­ بندی در کیسه کاغذی قهوه­ ای بدون پوشش خوراکی و تیمار شاهد بود.  کلیه نمونه ­های تیمار شده در ظروف پلاستیکی، هر کدام با هشت سوراخ، برای تهویه پیچیده شدند و تیمار شاهد فقط در ظروف پلاستیکی قرار داشت. بسته­ ها در دمای 10 درجه سانتی­گراد و رطوبت نسبی 85-90% به مدت 14 روز در انکوباتور انبار شدند. نتایج نشان داد که رقم تیبا سفتی بیشتری نسبت به رقم کوراژ داشت. خیارهای تیمار شده با روغن بادام کمترین کاهش وزن در مقایسه با سایر مواد پوششی داشتند، اگرچه اختلاف معنی ­داری بین دو رقم دیده نشد. بالاترین تفاوت رنگ مربوط به تیمار بسته­ بندی در کاغذ بود که تفاوت معنی­ داری با شاهد و سایر تیمارهای پوششی داشت. خیارهای بسته ­بندی شده در کاغذ بیشترین درجه سبز بودن را داشتند. بنابراین، هر دو رقم خیار خاردار پوشیده شده با مواد پوششی، ظاهر و درخشندگی بالاتری داشتند که مرتبط با  اثر پوشش­ های خوراکی بر کاهش وزن کمتر، کاهش از بین رفتن کلروفیل  و تاخیر در نرم شدن بود.

Keywords [فارسی]

  • پوشش‌های خوراکی
  • خیار خاردار
  • کاهش وزن
  • مواد پوششی
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