بررسی خصوصیات رئولوژیکی فیزیکوشیمیایی و ارگانولپتیکی ماست کرفس رژیمی

نویسندگان
مهسا محمدی 1
مسعود دزیانی 1
فاطمه شهدادی 2
1 گروه علوم و صنایع غذایی، واحد شبستر، دانشگاه آزادا اسلامی، شبستر، ایران.
2 گروه علوم و صنایع غذایی، دانشکده کشاورزی، دانشگاه جیرفت، جیرفت، ایران
10.52547/fsct.19.124.137
چکیده
این مطالعه به منظور بررسی سطوح مختلف پوره کرفس بر ویژگی­های فیزیکوشیمایی و زنده مانی باکتری­های پروبیوتیک در ماست صورت گرفت. نتایج نشان داد در پایان دوره نگهداری بیشترین میزان pH در نمونه حاوی 10 درصد کرفس مشاهده شد. با افزایش دوره نگهداری میزان اسیدیته افزایش یافت و بیشترین و کمترین میزان اسیدیته در پایان دوره نگهداری به ترتیب در تیمارهای شاهد و حاوی 10 درصد کرفس مشاهده شد. نمونه­های ماست حاوی 10 درصد کرفس کمترین میزان جدا شدن سرم و نمونه شاهد بیشترین سینرسیس (درصد جدا شدن سرم یا آب اندازی) را در پایان دوره نگهداری نشان دادند. در بررسی ویژگی­های حسی تیمار­های حاوی 10 درصد کرفس بیشترین امتیازات طعم، بو، بافت و پذیرش کلی را کسب کرد. بیشترین و کمترین امتیاز رنگ به ترتیب مربوط به تیمار حاوی 5 درصد کرفس و شاهد بود. بررسی ویژگی­های رئولوژیکی نشان داد که در همه نمونه­ها با افزایش سرعت برشی ویسکوزیته کاهش یافت و در همه سرعت­های برش نمونه­های حاوی 10 درصد کرفس ویسکوزیته بیشتری نسبت به سایر نمونه­ها دارا بودند. در پایان دوره نگهداری بیشترین تعداد باکتری­های پروبیوتیک زنده مانده در نمونه­های ماست حاوی 10 درصد کرفس مشاهده شد. براساس نتایج این تحقیق، ماست پروبیوتیک حاوی کرفس به ­دلیل دارابودن خواص حسی و وپروبیوتیکی مطلوب می­تواند به­عنوان یک محصول فراسودمند معرفی گردد.
کلیدواژه‌ها
کرفس
ماست پروبیوتیک
خواص حسی
خواص رئولوژیکی
زنده‌مانی پروبیوتیک‌ها

موضوعات

عنوان مقاله English

Investigation of physicochemical and organoleptic properties of diet celery yogurt

نویسندگان English

Mahsa Mohammadi 1
masoud dezyani 1
Fatemeh Shahdadi 2
1 Department of Food Science and Technology, Shabestar branch, Islamic Azad University, Sofian, Iran.
2 Department of Food Science and Technology, Faculty of Agriculture, University of Jiroft, Jiroft, Iran.
چکیده English

This study was performed to evaluate the different levels of celery puree on the physicochemical properties and viability of probiotic bacteria in yogurt. The results showed that at the end of the storage period, the highest pH was observed in the sample containing 10% celery. With increasing the storage period, the acidity increased and the highest and lowest acidity at the end of the storage period was observed in control and treatments with 10% celery, respectively. Yogurt samples containing 10% celery showed the lowest serum separation rate and control samples showed the highest. In the case of sensory properties, treatments with 10% celery obtained the highest scores of taste, odor, texture and general acceptance. The highest and lowest color scores were related to the treatment containing 5% of celery and control, respectively. Evaluation of rheological properties showed that in all samples, the viscosity decreased with increasing shear rate and samples containing 10% celery have a higher viscosity than other samples. At the end of the storage period, the highest vaiability of probiotic bacteria was observed in yogurt samples containing 10% celery. According to the results of this study, probiotic yogurt containing celery can be introduced as a useful product due to its desirable sensory and probiotic properties.

کلیدواژه‌ها English

Celery
Probiotic yogurt
Sensory properties
Rheological properties
Probiotic viability
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