با همکاری انجمن علوم و صنایع غذایی ایران

نوع مقاله : مقاله پژوهشی

نویسندگان

گروه علوم و صنایع غذایی، دانشکده کشاورزی، دانشگاه فردوسی مشهد.

چکیده

با توجه به نیاز روز افزون بشر به منابع جدید پروتئینی و میزان بالای پروتئین در دانه گاودانه،در این پژوهش خصوصیات فیزیکوشیمیایی و مکانیکی دانه گاودانه و ویژگی های عملکردی آرد حاصل از آن، مورد ارزیابی قرار گرفت؛ همچنین اثر تغییرات pH بر تغییر در میزان حلالیت، ظرفیت کف کنندگی و پایداری آن و ظرفیت امولسیون کنندگی و پایداری آن مورد بررسی قرار گرفت. متوسط طول، عرض و ارتفاع دانه ها به ترتیب 5638/3، 6197/3 و 8365/3 میلی متر و میانگین حسابی و هندسی قطر، ضریب کرویت و سطح به ترتیب 6733/3، 6701/3میلی متر، 0318/1و 405/42 میلی متر مربع بدست آمد. میانگین دانسیته واقعی، دانسیته توده و درصد تخلخل به ترتیب6/1326 کیلوگرم بر متر مکعب،7962/0کیلوگرم بر متر مکعب و 2753/40 درصد و متوسط ضرایب اصطکاک استاتیکی در سطوح تخته سه‌لایه، شیشه، لاستیک، فایبرگلاس و آهن گالوانیزه به ترتیب 4348/0، 1943/0، 4244/0، 3249/0 و 3739/0 بود. آرد حاصل از این دانه دارای 24 درصد پروتئین و 9 درصد چربی بود وظرفیت جذب آب و روغن، به ترتیب01/0±01/2 و 03/0± 77/1 (گرم آب یا روغن بر گرم نمونه) محاسبه شد. همچنین نتایج نشان داد تغییرات pH در محدوده 3 تا 9، میزان حلالیت، ظرفیت کف کنندگی و پایداری کف و ظرفیت امولسیون کنندگی و پایداری امولسیون آرد گاودانه موثر بود.

کلیدواژه‌ها

عنوان مقاله [English]

Evaluating the physicochemical and mechanical properties of bittervetch seed (Vicia ervilia) and the functional properties of the resulted flour

نویسندگان [English]

  • Masoud Taghizadeh
  • Behdad Shokrollahi
  • Fatemeh Hamedi

Department of Food Science and Technology, Agriculture Faculty, Ferdowsi University of Mashhad, Iran.

چکیده [English]

Due to the need to find new protein sources with considering the fact that the bitter vetch seed has high levels of protein content, physicochemical and mechanical properties of bitter vetch seed and functional properties of its flour were evaluated in this study. The effects of altering the pH on protein solubility, foaming capacity, foaming stability, emulsion capacity and emulsion stability were studied. The average length, width and height of the grains were 3.5638 mm, 3.6197 mm and 3.8365 mm. the arithmetic and the geometric mean diameter, sphericity and the area were 3.6733mm, 3.6701mm, 1. 0318 and 42.405mm2 respectively. The average true density, bulk density and porosity were 1326.6 kg/m3, 0.7962 kg/m3 and 40.2753% respectively. also the average coefficients of static friction of the plywood, glass, rubber, fiberglass and galvanized iron surface layer were 0.4348, 0.1943, 0.4244, 0.3249 and 0.3739 respectively. Flour produced from this seed contains 24% protein and 9% fat. water and oil absorbing capacity were obtained 2.01 ±0.01 and 1.77±0.03 respectively (grams of water or oil per grams of sample). The results also showed that changes in pH, affected the solubility, foaming capacity, foaming stability, emulsion capacity and emulsion stability of bitter vetch flour.

کلیدواژه‌ها [English]

  • bittervetch
  • flour
  • Physicochemical properties
  • Mechanical properties
  • Functional properties
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