استفاده از روش‌های هوای داغ، فروسرخ و مایکروویو برای خشک‌کردن جوانه‌های چرخ‌شده نخود

نویسندگان
کیمیا گوهرپور 1
فخرالدین صالحی 2
امیر دارایی گرمه‌خانی 3
1 دانشجوی کارشناسی ارشد، گروه علوم و صنایع غذایی، دانشگاه بوعلی سینا، همدان، ایران
2 دانشیار، گروه علوم و صنایع غذایی، دانشگاه بوعلی سینا، همدان، ایران
3 دانشیار، گروه مهندسی علوم و صنایع غذایی، دانشکده فنی و منابع طبیعی تویسرکان، دانشگاه بوعلی سینا، همدان، ایران
10.22034/FSCT.21.148.154
چکیده
فرآیند جوانه‌زنی شامل تغییراتی در ویژگی‌های تغذیه‌ای، بیوشیمیایی و حسی است که باعث بهبود کیفیت و افزایش قابلیت هضم نخود می‌شود. از جوانه‌های چرخ‌شده و خشک‌شده نخود برای تهیه محصولات مختلفی مانند فلافل استفاده می‌شود. لذا در این پژوهش استفاده از روش‌های هوای داغ (دمای 70 درجه سلسیوس)، فروسرخ (توان 250 وات) و مایکروویو (توان 220 وات) برای خشک‌کردن جوانه‌های چرخ‌شده نخود بررسی و مدل‌سازی شد. زمان خشک شدن نمونه‌ها در خشک‌کن فروسرخ از دو خشک‌کن دیگر کمتر بود. متوسط زمان خشک شدن نمونه‌ها در خشک‌کن‌های هوای داغ، فروسرخ و مایکروویو به ترتیب برابر 3/63، 7/26 و 7/156 دقیقه بود. در این پژوهش، ضریب نفوذ مؤثر رطوبت برای جوانه‌های چرخ‌شده نخود در خشک‌کن‌های هوای داغ، فروسرخ و مایکروویو به ترتیب برابر m2s-1 9-10×99/4، m2s-1 9-10×95/17 و m2s-1 9-10×59/1 به دست آمد. جهت بررسی سینتیک خشک شدن جوانه‌های چرخ‌شده نخود، مدل‎های ریاضی ونگ و سینگ، هندسون و پابیس، تقریب انتشار، پیج، نیوتن، میدیلی و لگاریتمی بر داده‎های تجربی برازش داده شدند. در نهایت، در مدل‌سازی فرآیند خشک‌کردن این محصول، مدل ریاضی میدیلی با چهار پارامتر به دلیل حداقل خطا به‌عنوان بهترین مدل انتخاب شد.
کلیدواژه‌ها
خشک‌کردن
ضریب نفوذ مؤثر رطوبت
فروسرخ
مایکروویو
مدل‌سازی
نخود

موضوعات

عنوان مقاله English

Application of hot-air, infrared, and microwave methods for drying ground of chickpea sprouts

نویسندگان English

Kimia Goharpour 1
Fakhreddin Salehi 2
Amir Daraei Garmakhany 3
1 MSc Student, Department of Food Science and Technology, Bu-Ali Sina University, Hamedan, Iran
2 Associate Professor, Department of Food Science and Technology, Bu-Ali Sina University, Hamedan, Iran
3 Associate Professor, Department of Food Science and Technology, Toyserkan Faculty of Engineering and Natural Resources, Bu-Ali Sina University, Hamedan, Iran
چکیده English

The sprouting process includes changes in nutritional, biochemical, and sensory characteristics that improve chickpea quality and increase its digestibility. Various products such as Falafel are made from ground and dried chickpea sprouts. Therefore, in this research, the use of hot air (70°C), infrared (250 W), and microwave (220 W) methods for drying ground chickpea sprouts was investigated and modeled. The drying time of the samples in the infrared dryer was shorter than the other two dryers. The average drying time of the samples in the hot air, infrared and microwave dryers was 63.3, 26.7, and 156.7 min, respectively. In this research, the effective moisture diffusivity coefficient of ground chickpea sprouts in hot air, infrared and microwave dryers was determined to be 4.99×10-9 m2s-1, 17.95×10-9 m2s-1, and 1.59×10-9 m2s-1, respectively. To study the drying kinetics of ground chickpea sprouts, Wang and Singh, Henderson and Pabis, Approximation of diffusion, Page, Newton, Midilli, and Logarithmic mathematical models were fitted to the experimental data. Finally, when modeling the drying process of this product, Midilli's mathematical model with four parameters was chosen as the best model due to its minimal error.

کلیدواژه‌ها English

Chickpea
Drying
Effective moisture diffusivity coefficient
Infrared
Microwave
Modeling
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