تأثیر انواع پوشش و بسته‌بندی بر روی خصوصیات فیزیکی میوه خرمالوی تحت بار

نوع مقاله : مقاله پژوهشی لاتین

نویسندگان

• سجاد جعفرزاده ¹
• محسن آزادبخت ¹
• فریال وارسته ¹
• محمد واحدی ترشیزی ²

¹ گروه مهندسی مکانیک بیوسیستم، دانشگاه علوم کشاورزی و منابع طبیعی گرگان، گرگان، ایران

² گروه مهندسی بیوسیستم، دانشگاه تربیت مدرس، تهران، ایران

https://doi.org/10.22067/ifstrj.2023.81571.1242

چکیده

با توجه به اینکه خرمالو یک میوه‌ی حساس به فشار بوده و نگهداری این میوه در انبارها به سختی انجام می‌شود، در این تحقیق سعی شده به بررسی پارامترهای موثر بر کاهش تغییرات خصوصیات فیزیکی آن پرداخته شود. این پارامترها نیروی بارگذاری در 2 سطح 150 و 250 نیوتن، سه نوع بسته‌بندی ظرف فومی با فیلم پلی‌اولفین، پلی‌اتیلن ترفتالات و جعبه‌ی معمولی و چهار نوع پوشش پلی آمین پوترسین با غلظت‌های 1 و 2 میلی‌مولار، آب مقطر و بدون پوشش بود. خصوصیاتی مانند درصد تغییرات وزن، حجم و چگالی میوه خرمالو و همچنین سفتی این میوه در مرحله‌ی قبل و بعد از انبارداری بررسی شد. با توجه به نتایج بدست آمده برای سفتی میوه‌ها، بیشترین مقدار سفتی در تیمار پوترسین با غلظت 1 میلی‌مولار و پوشش ظرف فومی با فیلم پلی‌اولفین با مقدار 5/6 نیوتن بدست آمد که تقریبا سه برابر سفتی میوه‌های بدون پوشش بود. کمترین میزان درصد کاهش وزن، حجم و چگالی نیز در همین نوع پوشش و بسته‌بندی بدست آمد که مقادیر آن به ترتیب 458/2، 82/1 و 833/0 % نسب به روز اول انبارداری می‌باشد. در مجموع استفاده از تیمار پلی‌آمین تاثیر مثبتی جهت تغییرات خصوصیات فیزیکی میوه‌ی خرمالو را نشان داد و بهترین ظرف نوع بسته‌بندی که کمترین تغییرات را ایجاد کرد ظروف فومی با فیلم پلی‌اولفین بود.

کلیدواژه‌ها

• انبارداری
• بارگذاری
• بسته‌بندی
• پلی‌آمین
• خرمالو
• خواص فیزیکی

موضوعات

• مهندسی مواد غذایی

عنوان مقاله [English]

The Effect of Different Types of Coating and Packaging on the Physical Properties of Persimmon Fruit under Load

نویسندگان [English]

• Sajad Jafarzadeh ¹
• Mohsen Azadbakht ¹
• Faryal Varasteh ¹
• Mohammad Vahedi Torshizi ²

¹ Department of Bio-System Mechanical Engineering, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran

² Department of Bio-System Engineering, Tarbiat Modares University, Tehran, Iran

چکیده [English]

Since persimmon is a pressure-sensitive fruit and it is difficult to store this fruit in warehouses, in this research, an attempt has been made to examine the parameters affecting the reduction of changes in its physical properties. The samples were loaded at 150 and 250 N, three types of foam container packaging with polyolefin film, polyethylene-terephthalate, and ordinary box, and four types of polyamine putrescine coating with concentrations of 1 and 2 mM, distilled water and uncoated. Properties such as Physiological Weight Loss, volume, and the density of persimmon fruit, as well as the firmness of this fruit in the prepost-storage stage were examined. The results showed, the highest firmness was obtained in the treatment of putrescine at a concentration of 1 mM and a foam container with polyethylene film with a value of 6.5 N, which was almost three times the firmness of uncoated fruits. The lowest Physiological Weight Loss, volume, and density were obtained in the same type of coating and packaging. The values of these parameters were 2.458%, 1.82, and 0.833%, respectively, compared to the first day of storage. Overall, the use of polyamine treatment showed a significant effect on changes in the physical properties of persimmon fruit, and foam containers with polyolefin film emerged as the optimal packaging option, resulting in the least amount of change among the different types of packaging used.

کلیدواژه‌ها [English]

• Loading force
• Packaging
• Persimmon
• Physical properties
• Polyamine
• Storage

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