امکان سنجی فنی استفاده از اشعه مادون قرمز در پوست گیری مغز فندق به روش خشک

نوع مقاله : مقاله پژوهشی

نویسندگان

1 هیات علمی

2 عضو هیات علمی دانشگاه تهران

3 دانشجوی کارشناسی ارشد مهندسی مکانیک بیوسیستم، پردیس ابوریحان دانشگاه تهران

چکیده

در این تحقیق، حذف پوست قهوه­ای روی مغز فندق با استفاده از تابش­دهی اشعه مادون قرمز مورد بررسی و ارزیابی قرار گرفت. برای این کار تأثیر پارامترهای توان لامپ مادون قرمز در سه سطح 800، 1200 و 1600 وات، مدت زمان تابش­دهی در سه سطح 2، 3 و 4 دقیقه و رطوبت اولیه مغز فندق در چهار سطح 4، 6، 8 و10 درصد بر پایه تر برای رسیدن به بیشترین میزان درصد سُست شدن پوست قهوه­ای روی مغز، انجام شد. آزمایش­ها به صورت فاکتوریل در قالب طرح کاملاً تصادفی با سه تکرار انجام شد. برای تعیین میزان درصد سُست شدن پوست قهوه­ای از تکنیک پردازش تصویر استفاده شد. نتایج نشان داد افزایش توان مادون قرمز و مدت زمان تابش­دهی به طور معنی­داری (p < 0.05) باعث افزایش میزان درصد سُست شدن پوست شد و افزایش رطوبت اولیه مغز فندق به طور معنی­داری (p < 0.05) بر کاهش میزان درصد سست شدن پوست گردید. اثرات متقابل هر سه پارامتر مورد بررسی، اثر معنی­داری (p < 0.05) در سست شدن پوست نشان داد. مناسب­ترین پارامترهای واحد مادون قرمز در توان تابشی 1600 وات، مدت زمان تابش­دهی 3 دقیقه و رطوبت اولیه مغز فندق 4 درصد تعیین شد.

کلیدواژه‌ها

موضوعات


عنوان مقاله [English]

Technical feasibility of using infrared radiation in dry-peeling for hazelnuts

نویسندگان [English]

  • Ali Mashallah kermani 1
  • Shahriar Kouravand 2
  • Jalal Eskandari 3
1 Abureyhan Campus
2 Department of Agro-Technology Engineering, College of Aburaihan, University of Tehran, Tehran, Iran
3 2Master of Science student, Department of Agro-Technology Engineering, College of Aburaihan, University of Tehran, Tehran
چکیده [English]

In this study, removal of the brown skin (seed coat) on the hazelnut kernel was investigated using infrared radiation. Evaluation of the infrared radiation method to achieve the highest percentage of seed coat loosening on the kernel. The effects of infrared emitter power at three levels of 800, 1200 and 1600 W, radiation duration at three levels of 2, 3 and 4 minutes, and the initial moisture content of hazelnuts at four levels of 4, 6, 8, and 10% wet basis (w.b.) were investigated. Experiments were conducted at factorial in a completely randomized design with three replications. The peel loosening percentage was determined with using image processing method The results showed that by increasing in the IR radiation power and radiation time increased the percentage skin loosening significantly (p < 0.05), while the increase of moisture content hazelnuts was caused reduced the percentage skin loosening (p < 0.05). The most appropriate parameters the IR radiation unit were determined to be radiation power at 1600 W, the radiation time 3 min, and the moisture content of hazelnut 4% (w.b.).

کلیدواژه‌ها [English]

  • Dry-peeling
  • Hazelnuts peeling
  • Infrared radiation
  • image processing
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