تاثیر سبوس با میزان اسید فیتیک کاهش یافته به روش تلفیقی آسیاب/اتوکلاو/ آون بر خواص رئولویکی و فاکتورهای پخت پاستای فرمی سدانو

نویسندگان
1 گروه علوم و صنایع غذایی واحد علوم و تحقیقات دانشگاه آزاد اسلامی
2 استاد گروه علوم و صنایع غذایی،دانشکده علوم کشاورزی و صنایع غذایی،واحد علوم و تحقیقات تهران،دانشگاه آزاد اسلامی
3 عضو مرکز دانش بنیان گروه صنعتی و پژوهشی فرهیختگان زرنام
چکیده
امروزه پاستا یکی از محصولات غذایی پر مصرف است و استفاده از سبوس در فرمولاسیون آن راهکاری مناسب جهت تولید محصول مغذی و غنی از ترکیبات فیبری می باشد. وجود اسید فیتیک در سبوس به دلیل تشکیل کمپلکس با ترکیبات ریزمغذی و از دسترس خارج کردن آنها، عاملی محدود کننده ای محسوب میشود و حذف یا کاهش آن برای استفاده از سبوس ضروری است. در پژوهش حاضر ابتدا سبوس خام در دو مش 90 و 120 میکرومتر، آسیاب گردید. هریک از نمونه ها تحت فرآوری حرارتی/ رطوبتی در درون اتوکلاو /آون به ترتیب با دمای 121 و 150درجه به مدت 90 و 20 دقیقه قرار داده شدند. نمونه های فرآوری شده به مقادیر 5/2، 5 و 5/7 درصد با آرد پاستا مخلوط و خواص رئولوژیکی خمیر حاصله توسط آزمون میکسولب بررسی و نمونه با خواص مطلوب در تولید پاستای فرمی سبوس دار از نوع سدانو انتخاب شد. در این پژوهش اندازه گیری فیبر نا محلول در شوینده ی اسیدی بر اساس روش ون سوست، و اندازه گیری اسید فیتیک با استفاده از روش کروماتوگرافی مایع با کارایی بالا انجام شده است. نتایج آزمونها نشان داد که غنی کردن پاستای فرمی سدانو با سبوس فرآوری شده به روش اتوکلاو آون در مقادیر 5 و 5/7 درصد باعث بهبود پارامترهای رئولوژیکی خمیر شده است. در نهایت، نمونه پاستای حاوی سبوس فرآوری شده به روش تلفیقی اتوکلاو /آون با مش 90 و میزان 5%، با کمترین میزان افت پخت ، مناسب ترین خواص رئولوژیکی و ویژگی های حسی مشابه با پاستای شاهد به عنوان بهترین تیمار این پژوهش معرفی گردید.
کلیدواژه‌ها

موضوعات


عنوان مقاله English

The impact of bran with reduced phytic acid by using a combined mill/autoclave/oven method on the rheological characteristics and cooking variables of Sedani-type pasta

نویسندگان English

samaneh Gol Mohammadi 1
maryam mizani 2
amin Seyed Yaghoubi 3
1 Department of Food Sci and technology , Science and Research Branch Islamic Azad University
2 Professor, Dept. Of Food Science and Technology, Science and Research Branch, Islamic Azad University
3 Head of Quality Control at Zar Industrial & Research Group
چکیده English

Today, pasta is one of the most popular foods, and the addition of bran into its formulation provides the possibility of producing a healthy, high-fiber food product. As some micronutrients may become unavailable due to complex formation by phytic acid, which is present in bran, reducing the amount of this ingredient may eliminate this limiting factor and improve its applications in foods. The raw bran used in this study was first ground into two mesh sizes, 90 and 120 micrometers and then, processed by two stages of dry/humid thermal processes, accomplished in an autoclave and oven, at temperatures of 121°C and 150°C for 90 and 20 minutes, respectively. The bran sample mixed with the pasta flour in proportions of 2.5, 5, and 7.5(gr/100gr flour). The rheological characteristics of the mixed- flour pastes were analyzed by Mixolab test to determine the best formulation for the Sedani-type bran-enriched pasta. Van Soest and the high-performance liquid chromatography methods were used to evaluate the insoluble portion of fiber in acidic detergent and phytic acid, respectively. According to the results, two paste formulations containing 5 and 7.5% of the bran exhibited the best rheological properties. In conclusion, the pasta sample formulated with 5% of the processed bran showed the lowest cooking loss and the highest sensory scores compared to control and may be recommended as the best treatment.

کلیدواژه‌ها English

Wheat bran
Phytic acid
Pasta
Rheological properties
Cooking quality
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