مدلسازی کینتیک انتقال جرم طی سرخ کردن عمیق ناگت پنیر کردی پوشش داده شده با سفیده تخم مرغ

مجله پژوهشهای علوم و صنایع غذایی ایران

مقاله 3، دوره 9، شماره 2 - شماره پیاپی 24، تیر 1392   

نوع مقاله: مقاله پژوهشی

شناسه دیجیتال (DOI): 10.22067/ifstrj.v9i2.25673

نویسندگان

الهام انصاری فر^{* 1}؛ محبت محبی؛ فخری شهیدی؛ مهدی وریدی²

¹دانشگاه فردوسی

²فردوسی مشهد

چکیده

هدف این پژوهش ارزیابی اثر دما و زمان سرخ کردن و فرمولاسیون‌های مختلف خمیرابه بر ویژگی‌های رئولوژیکی خمیرابه، میزان جذب خمیرابه و پارامترهای کینتیک انتقال جرم ناگت پنیر در طی سرخ کردن عمیق بوده است. بدین منظور با افزودن صفر، 5 و 10 % سفیده‌ی تخم مرغ به خمیرابه‌ی ناگت پنیر در دماهای 150 ، 170 و °C190 در زمان‌های صفر، 1، 2، 3 و 4 دقیقه به صورت عمیق سرخ شدند. خمیرابه شاهد ریسکوزیته ظاهری و میزان جذب خمیرابه بیشتری نسبت به سایر خمیرابه ها داشت. ضریب نفوذ موثر رطوبت برای ناگت‌های پوشش دار شده با خمیرابه شاهد در محدوده (m2/s) 8-10×45/2 تا (m2/s) 8-10×16/3، با ضریب تبیین 86/0 تا 91/0 و برای ناگت‌های پوشش دار شده با خمیرابه حاوی سفیده تخم مرغ در محدوده ی(m2/s) 8-10×40/1 تا (m2/s) 8-10×90/2، با ضریب تبیین 87/0 تا 98/0 بدست آمد. ضریب نفوذ سرعت انتقال روغن بین(m2/s) 3-10×1/1 تا (m2/s) 3-10×9/8، با ضریب تبیین 82/0 تا 99/0 بود. مقادیر انرژی فعال سازی برای حذف رطوبت در نمونه‌های شاهد و پوشش دار با خمیرابه حاوی سفیده تخم مرغ، برابر (kJ/mol)01/30 و بین52/36 تا 42/38(kJ/mol) بدست آمد.

کلیدواژه‌ها

انتقال جرم؛ خمیرابه؛ سرخ کردن عمیق؛ سفیده تخم مرغ؛ ناگت پنیرکردی

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