changes in qualitative properties of potato stick during pre-drying and frying

نویسندگان

مریم اسدی

کارشناس ارشد گروه علوم و صنایع غذایی دانشکدۀ کشاورزی دانشگاه صنعتی اصفهان ناصر همدمی

استادیار گروه علوم و صنایع غذایی دانشکدۀ کشاورزی دانشگاه صنعتی اصفهان سید امیر حسین گلی

استادیار گروه علوم و صنایع غذایی دانشکدۀ کشاورزی دانشگاه صنعتی اصفهان

چکیده

due to problems in storage, transport and price fluctuation of fresh potato, production of ready-to-use products like french fries is of particular importance.one of the important steps in product processing is pre-drying.sticks with 0.8*0.8*8 cm dimensions were prepared, blanched with hot water at 75°c for 10 minutes and dried at four different air temperatures of 50, 60, 70 and 80°c to moisture content of 70٪. finally, frying at 180°c for 4 minutes was performed. color and texture were evaluated during pre-drying whereas color, texture and oil uptake of samples were investigated after frying. the results showed that drying temperature was much effective on product texture while no difference was observed on color and oil uptake of potato sticks. the best quality will be obtained with drying at 70°c to moisture content of 75٪.

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منابع مشابه

modeling apparent density of potato strips pretreated with ultrasound and drying during deep-fat frying

the aim of this study was to investigate the effect of ultrasound and drying pretreatments on apparent density as well as modeling apparent density during deep-fat frying of potato slices. ultrasound pretreatment was performed at 28 and 40 khz for 15 min and drying pretreatment were conducted at 80°c for 8 and 15 min. then, the frying process was done at 150, 170 and 190°c for 60, 120, 180 and ...

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Changes in the Essential Oil Content and Composition of Lippia citriodora under Vacuum Oven-drying and Pre-drying Operation

Background: Pre-drying operations and drying methods have a significant effect on the quantity and quality of plants essential oils. Objective: In this study, the effect of pre-drying operation and vacuum oven-drying was investigated on the essential oil content and composition of Lippia citriodora. Method: This research was conducted as a factorial experiment in a completely randomized desig...

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عنوان ژورنال:
مهندسی بیوسیستم ایران

جلد ۴۵، شماره ۱، صفحات ۷۳-۷۹

کلمات کلیدی
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