بهینه سازی شرایط تولید (غلظت صمغ دانه بالنگو، دما و زمان سرخ کردن) ورقه های کدوی سرخ شده کم چرب با ‌استفاده روش سطح پاسخ

نویسندگان
اشرف گوهری اردبیلی 1
نرجس آقاجانی 1
امیر دارایی گرمه خانی 2
1 استادیار، گروه مهندسی ‌علوم و صنایع غذایی، دانشکده صنایع غذایی بهار، دانشگاه بوعلی سینا، همدان، ایران
2 استادیار، گروه مهندسی ‌علوم و صنایع غذایی، دانشکده فنی و منابع طبیعی تویسرکان، دانشگاه بوعلی سینا، همدان، ایران
10.52547/fsct.17.109.129
چکیده
مواد غذایی سرخ کردنی به سبب طعم و مزه و احساس دهانی مطلوب از محبوبیت ویژه­ای برخوردار هستند اما در مقابل حاوی مقدار زیادی روغن می‌باشند. زمان و دمای سرخ کردن و پوشش دهی قبل از سرخ کردن از مهم‌ترین عوامل موثر بر میزان روغن در فرآورده­های سرخ شده می­باشند. در این پژوهش اثر غلظت‌های مختلف صمغ دانه بالنگو به عنوان پوشش در سه سطح (0، 10 و 20 درصد وزنی-حجمی)، دما (150، 170 و 190 درجه سانتی­گراد) و زمان سرخ کردن (2، 4 و 6 دقیقه) بر خواص کیفی و ویژگی‌های حسی ورقه­های کدو سبز سرخ شده بررسی و با استفاده از روش سطح پاسخ بهینه یابی شد. نتایج نشان داد که با افزایش غلظت صمغ در پوشش، اتلاف رطوبت و میزان جذب روغن فرآورده کاهش یافت اما با افزایش زمان و دمای سرخ کردن، میزان رطوبت محصول کاهش و جذب روغن نمونه­ها افزایش یافت. روشنایی (*L) فرآورده با افزایش زمان و دمای سرخ کردن و افزایش غلظت صمغ دانه بالنگو کاهش یافت. در بین فاکتورهای مورد مطالعه به ترتیب دمای سرخ کردن > زمان سرخ کردن > غلظت صمغ دانه بالنگو بر روی فاکتورهای رنگی *a و *b فرآورده مؤثر بودند. نتایج ارزیابی حسی نمونه‌ها نشان داد که پذیرش کلی ورقه­های کدو سبز سرخ شده با افزایش زمان و دمای سرخ کردن افزایش می‌یابد اما با افزایش غلظت صمغ دانه بالنگو کاهش جزیی داشت. نتایج بهینه­سازی نشان داد که زمان سرخ کردن 2 دقیقه، غلظت صمغ دانه بالنگو 31/14 درصد و دمای سرخ کردن 177 درجه سانتی­گراد، شرایط بهینه فرآیند سرخ کردن ورقه­های کدو سبز بوده و با شرایط مذکور پارامترهای حسی و کیفی محصول به صورت بهینه حفظ می‌شود. استفاده از پوشش صمغ دانه بالنگو می‌تواند منجر به تولید محصول کدو سبز سرخ شده کم چرب بدون تأثیر نامطلوب بر خواص حسی و کیفی محصول شود.
کلیدواژه‌ها
ورقه‌های کدو سبز
صمغ دانه بالنگو
پوشش‌ دهی
سرخ کردن عمیق
روش سطح پاسخ

موضوعات

عنوان مقاله English

Response surface optimization of low fat fried zucchini slices production conditions (Balangu seed gum ‎concentration, frying time and temperature)‎

نویسندگان English

Ashraf Gohari Ardabili 1
Narjes Aghajani 1
Amir Daraei garmakhany 2
1 ‎Assistant Prof. Dept. food Science and Technology, Bahar faculty of food Science and Technology, ‎Bu-Ali Sina University, Hamedan‎
2 Assistant Prof. Dept. of food Science and Technology, College of food Science and Technology of ‎Toyserkan, Bu-Ali Sina University, Hamedan, Iran‎
چکیده English

Fried foods due to suitable taste, flavor and mouth feel are very popular but they contain high level of oil. Frying time and temperature and coating before frying process are the main factors, affetcting oil content in fried products. In this study the effect of different concentrations of Balangu seed gum (0, 10 and 20 %W/V), frying temperature (150, 170 and 190 0C) and frying time (2, 4 and 6 minutes) on the quality and sensory attributes of fried zucchini slices were investigated and optimized by response surface method. Results showed that the amounts of water loss and oil uptake during frying process were reduced with increase of gum concentration in the coating agent, but the moisture content of sample was decreased by increasing of frying time and temperature while oil uptake increased. The L* index of the final products were decreased with increase of frying time and temperature and Balangu seed gum concentration. The most affecting factors on the a* and b* index are frying temprature, frying time and Balangu seed gum concentration respectively. The sensory evaluation results, showed that, total acceptance of fried zucchini slices increased with frying time and temperature incensement while decreased with Balangu seed gum incensement. Optimization results showed that the optimum processing conditions of fried zucchini slices were frying time of 2 minute, Balangu seed gum concentration 14.31% and frying temperature 177 0C and in these conditions the quality attributes of final products were in optimum level. Application of Balangu seed gum lead to produce low fat fried zucchini slices without adverse effect on sensory attributes of final product.

کلیدواژه‌ها English

slices
Balangu seed gum
Coating
Deep fat frying
Response surface method
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