مقایسه اثرات صمغ‌های قدومه شیرازی و فارسی به‌عنوان هیدروکلوئید جایگزین چربی بر خصوصیات فیزیکوشیمیایی و حسی خامه صبحانه کم‌چرب

نوع مقاله : مقاله پژوهشی

نویسندگان

• ریحانه داخته ¹
• محمدرضا خانی ¹
• شهریار دبیریان ²

¹ گروه علوم و صنایع غذایی، واحد شهرقدس، دانشگاه آزاد اسلامی، تهران، ایران

² گروه تضمین کیفیت صنایع شیر ایران (پگاه)

https://doi.org/10.22067/ifstrj.v17i1.85367

چکیده

این تحقیق با هدف جایگزینی بخشی از چربی خامه صبحانه با استفاده از دو نوع صمغ قدومه شیرازی و فارسی انجام شد. بدین منظور میزان چربی خامه از 25 درصد (در نمونه شاهد) به 18 و 15 درصد کاهش یافت و هریک از این صمغ‌ها به‌طور جداگانه در مقادیر 2/0، 3/0 و 4/0 درصد (وزنی/وزنی) در فرمولاسیون استفاده شدند. سپس ویژگی‌های فیزیکوشیمیایی و حسی نمونه‌ها موردبررسی و مقایسه قرار گرفت. نتایج نشان داد که اثر نوع صمغ و مقدار صمغ روی میزان pH، اسیدیته، ماده خشک، رطوبت، آب‌اندازی و ویسکوزیته نمونه‌های تولیدشده معنی‌دار بود (05/0>P). در هر دو نوع خامه (با 15 و 18 درصد چربی)، pH تیمار حاوی %4/0 صمغ قدومه شیرازی (81/6) به‌طور معنی­‌داری بالاتر از pH نمونه شاهد (69/6) و دیگر تیمارها بود (05/0>P). درصد رطوبت نمونه شاهد (%7/68) پایین‌تر از تیمارهای موردبررسی (%7/78-73) بود اما درصد ماده خشک نمونه شاهد (%3/31) بالاتر از تیمارها (%9/26-2/21) بود و بیشترین ماده خشک در هر دو نوع خامه 18 و 15 درصد به تیمار حاوی %4/0 صمغ فارسی اختصاص یافت. ویسکوزیته تیمارهای خامه %18 چربی حاوی %4/0 صمغ قدومه شیرازی (21915 سانتی‌پوآز) و صمغ فارسی (21919 سانتی‌پوآز) به‌طور معنی‌داری بالاتر از نمونه شاهد (21507 سانتی‌پوآز) و سایر تیمارها بود. همچنین آب­اندازی در تیمارهای خامه %18 چربی حاوی %4/0 صمغ قدومه و صمغ فارسی (صفر میلی­لیتر) و نیز تیمار خامه %15حاوی %4/0 صمغ قدومه شیرازی (صفر میلی‌لیتر) همانند نمونه شاهد مشاهده نگردید (05/0<P). در ویژگی‌های حسی نیز نوع صمغ صرفاً روی رنگ اثر معنی‌­دار داشت و اثر نوع خامه و مقدار صمغ عمدتاً روی بافت و پذیرش کلی نمونه‌ها معنی‌دار بود. درمجموع خامه کم‌چرب %18 چربی حاوی %4/0 صمغ قدومه و صمغ فارسی بهترین نتایج فیزیکوشیمیایی و حسی را در مقایسه با سایر تیمارها به‌خود اختصاص دادند.

کلیدواژه‌ها

• جایگزین چربی
• صمغ قدومه شیرازی
• صمغ فارسی
• خامه صبحانه کم چرب
• هیدروکلوئید

عنوان مقاله [English]

Comparison of the effects of Qodume shirazi (Alyssum homolocarpum) and Persian gums (Amygdalus scoparia) as fat replacer hydrocolloid on physicochemical properties of low-fat table cream

نویسندگان [English]

• Reyhaneh Dakhteh ¹
• Mohammadreza Khani ¹
• Shahriar Dabiriyan ²

¹ Department of Food Science and Technology, Shahr-e-Qods Branch, Islamic Azad University, Tehran, Iran

² Iran Dairy Industries Co. (Pegah)

چکیده [English]

Introduction: Because of the relationship between fat intake and obesity and the incidence of cardiovascular diseases, the demand for low-fat products has been increased. There are several methods to produce low fat products, which one of these methods is the use of fat replacer. The present study was aimed to partial substitution of fat in table cream by Qodume shirazi (Alyssum homolocarpum) and Persian (Amygdalus scoparia) gums.
 
Materials & Methods: The fat content of cream was decreased from 25% (in control sample) to 18% and 15%, and each of these gums were added to the low-fat cream formulation in 0.2%, 0.3%, and 0.4% (w/w), separately to make 12 treatments. All samples were examined for physicochemical (including pH, acidity, dry matter, moisture, synersis, and viscosity) and organoleptic (including color, aroma, taste, texture and overall acceptability) properties.
 
Results and Discussion: The results showed that the effect of type and amount of gums was significant for the pH, acidity, dry matter, moisture, syneresis, and viscosity of produced samples (P<0.05). In both types of cream (with 15 and 18 percent fat), pH of treatment containing 0.4% Qodume gum (6.81) was significantly higher than control (6.69) and other treatments (P<0.05). Moisture content of the control sample (68.7%) was lower than other treatments (73-78.7%) but dry matter of the control sample (31.3%) was higher than other treatments (21.2-26.9%) and in both creams containing 18% and 15% fat, the higher dry matter was devoted to sample containing 0.4% of Persian gum. The viscosity of cream with 18% fat containing 0.4% Qodume shirazi gum (21915 cP) and Persian gum (21919 cP) was significantly higher than the control sample (21507 cP) and other treatments. Moreover, syneresis of treatments with 18% fat containing 0.4% Qodume and Persian gums (0 ml), and also cream sample with 15% fat containing 0.4% Qodume gum (0 ml) was not observed as in the control sample (P>0.05). Evaluation of sensory properties revealed that the type of gums only had significant effect on color and the effects of cream type and amount of gums were mostly significant on texture and overall acceptance. In general, low-fat cream with 18% fat containing 0.4% Qodume and Persian gums had showed the best physicochemical and sensory results comparing to other treatments.

کلیدواژه‌ها [English]

• fat replacer
• hydrocolloid
• Low-fat table cream
• Persian gum
• Qodume shirazi gum

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