اثر غلظت‌های مختلف صمغ دانه بالنگو بر خصوصیات فیزیکوشیمیایی، بافتی و حسی نان سنگک غنی‌شده با پودر کدوحلوایی

نویسندگان
اوشا پورمحمدی مجاوری 1
سید حسین حسینی قابوس 2
سارا جعفریان 3
1 گروه علوم و مهندسی صنایع غذایی، واحد آزادشهر، دانشگاه آزاداسلامی، آزادشهر، ایران
2 استادیار مرکز تحقیقات صنایع غذایی شرق گلستان، واحد آزادشهر، دانشگاه آزاد اسلامی، آزادشهر، ایران.
3 استادیار، گروه علوم وصنایع غذایی، واحدنور، دانشگاه آزاداسلامی، نور، ایران
10.52547/fsct.18.111.189
چکیده
این مطالعه با هدف بررسی تأثیر پودر کدوحلوایی (12٪) و صمغ دانه بالنگو (0/0، 5/0، 0/1 و5/1%) بر روی خصوصیات فیزیکوشیمیایی، رئولوژیکی، بافتی و پارامترهای حسی نان سنگک انجام شد. ابتدا برش‌های تازه کدوحلوایی (ضخامت 5 میلی‌متر) خشک شدند (65 درجه سلسیوس) و نمونه‌ها پودر شده و در فرمولاسیون نان سنگک استفاده شد. خمیر نان کدوحلوایی فرموله شده با صمغ دانه بالنگو رفتار شبه پلاستیک و تیکسوتروپیک را نشان داد. با افزایش درصد صمغ دانه بالنگو از 0/0 به 5/1 درصد، ویسکوزیته خمیر نان از 31/13 به 65/23 پاسکال ثانیه افزایش یافت (P<0.05). با افزایش درصد صمغ دانه بالنگو، دانسیته نان‌های پخته شده از 1/880 به 29/704 کیلوگرم در مترمکعب کاهش یافت. رنگ سطح نمونه‌ها با افزودن صمغ دانه بالنگو تحت تأثیر قرار گرفت. نان کدوحلوایی با 0/1 درصد صمغ دانه بالنگو شاخص‌های رنگی L * ، a * و b * برابر با 38/65 ، 86/6 و 43/44 از خود نشان داد. وزن، رطوبت و مقادیر حجم نان‌ها به ترتیب از 83/52 به 02/57 گرم، 04/30 به 56/35 درصد و 38/65 سانتی‌متر مکعب به 99/80 سانتی‌متر مکعب رسید. صمغ دانه بالنگو تخلخل نان‌ها را بهبود بخشید و باعث کاهش افت پخت گردید و محصول نان نرمتر شد. نان سنگک با 5/1% صمغ دانه بالنگو بالاترین امتیاز رنگ، تخلخل و ظاهر را داشت و نان با 1٪ صمغ دانه بالنگو از نظر عطروطعم، خصوصیات بافتی و پذیرش کل بیشترین امتیاز را کسب نمودند (P<0.05).
کلیدواژه‌ها
ارزیابی حسی
خصوصیات بافتی
صمغ بالنگو
ویسکوزیته

عنوان مقاله English

Effect of different concentrations of balangu seed gum on the physicochemical, textural and sensory properties of sangak bread enriched with pumpkin powder

نویسندگان English

Ousha Pourmohammadi Mojaveri 1
Seyyed Hossein Hosseini Ghaboos 2
Sara Jafarian 3
1 Department of Food Science and Engineering, Azadshahr Branch, Islamic Azad University, Azadshahr , Iran.
2 Assistant Professor, Food Science and Technology Research Center of East Golestan, Azadshahr Branch, Islamic Azad University, Azadshahr, Iran.
3 Assistant Professor, Department of Food Science & Technology, Nour Branch, Islamic Azad University, Nour, Iran.
چکیده English

This study aims at evaluating the impact of pumpkin powder (12%) and Balangu seed gum (BSG) (0.00, 0.50, 1.00 and 1.50 %) on the physicochemical, rheology, textural properties and sensorial parameters of the sangak bread. First, the fresh pumpkin slices (5mm thickness) were dried (65°C) and samples were powdered and used in the sangak bread formulation. Pumpkin bread dough formulated with BSG showed pseudoplastic and thixotropic behaviour. The bread dough viscosity increased from 13.31 to 23.65 Pa.s with increasing BSG percent from 0.00 to 1.50 % (P<0.05). With increasing BSG concentration, the density of baked breads was reduced from 880.10 to 704.29 kg/m3. The surface color of samples was affected by addition of BSG. The pumpkin bread with 1.00 % BSG demonstrated a colour, with L*, a* and b* indexes equal to 65.38, 6.86 and 44.43, respectively. The weight, moisture content (MC) and volume values of breads increased from 52.83 to 57.02 g, 30.04 to 35.56 % and 65.38 to 80.99 cm3, respectively. BSG improved porosity of the breads and resulted in reduced baking loss and softer bread product. The sangak bread with 1.5% BSG had the best score of color, porosity and appearance, and the bread with 1% BSG had the highest satisfactory in terms of flavour, textural properties and total acceptance (P<0.05).

کلیدواژه‌ها English

Balangu gum
Sensory evaluation
Textural properties
Viscosity
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مجله علوم و صنایع غذایی ایران
دوره 18، شماره 111 - شماره پیاپی 111
اردیبهشت 1400
صفحه 189-200