بررسی امکان تولید نوشیدنی های پروبیوتیک بر پایه آب کرفس و شاه توت با بکارگیری باکتری لاکتوباسیلوس پلانتارم

نویسندگان
1 استادیار گروه علوم صنایع غذایی، واحد رودهن، دانشگاه آزاد اسلامی، رودهن، ایران
2 دانشجوی کارشناسی ارشد مهندسی علوم صنایع غذایی، واحد رودهن، دانشگاه آزاد اسلامی، رودهن، ایران
چکیده
در این پژوهش به منظور تولید نوشیدنی‌های پروبیوتیک شاه‌توت و کرفس از باکتری لاکتوباسیلوس پلانتاروم در دو غلظت 1 و 2 درصد در دمای محیط و یخچال استفاده شد. آزمون‌های انجام شده شامل تعیین pH، اسیدیته قابل تیتر، شمارش زنده‌مانی میکروارگانیسم‌های هدف و ارزیابی حسی بود. نتایج نشان داد که با گذشت زمان و رشد باکتری هدف در نوشیدنی‌های شاه‌توت و کرفس، pH به صورت معنی داری کاهش یافته است. نتایج حاصل از شمارش زنده مانی نشان داد که در میان تمام نمونه‌ها، محلول آب شاه‌توت حاوی 2 درصد از باکتری نگهداری شده در یخچال بعد از 28 روز نسبت به سایر نمونه‌ها دارای بیشترین تعداد زنده‌مانی میکروارگانیسم‌ها یعنی 107×25/8 CFU/ml و همچنین آب‌میوه کرفس حاوی 2 درصد از باکتری پروبیوتیک نگهداری شده در یخچال بعد از گذشت 21 روز نسبت به سایر نمونه‌ها دارای بیشترین تعداد زنده‌مانی میکروارگانیسم یعنی107×02/4 CFU/ml بود که دو نمونه مورد نظر در این شرایط هنوز با نام نوشیدنی پروبیوتیک قابل نام‌گذاری هستند. نتایج ارزیابی حسی نیز نشان داد که خواص حسی نمونه‌های BLR1 (آب­میوه شاه‌توت حاوی 1 درصد باکتری در یخچال)، BLR2 (آب­میوه شاه‌توت حاوی 2 درصد باکتری در یخچال) و CLR1 (آب­میوه کرفس حاوی 2 درصد باکتری در یخچال) با نمونه‌های شاهد خود بدون تفاوت معنی داری هم امتیاز بوده­اند اما به طور کلی نمونه‌های آب‌میوه کرفس امتیاز بالاتری نسبت به آب‌میوه شاه‌توت کسب کردند. از یافته‌های حاصل می­توان نتیجه گرفت که آب شاه‌توت و کرفس بستر خام مناسبی جهت رشد باکتری لاکتوباسیلوس پلانتاروم بوده­اند.
کلیدواژه‌ها

موضوعات


عنوان مقاله English

Investigating the possibility of probiotic production base on Celery and Blackberry beverages by using Lactobacillus plantarum

نویسندگان English

marjan nouri 1
Armin Amin Moghadasi1 2
1 Assistant professor, Food Science and Technology, Roudehen Branch Islamic Azad University, Roudehen
2 Master of Science student, Food Science and Technology, Roudehen Branch Islamic Azad University, Roudehen
چکیده English

In this study, Lactobacillus plantarum bacteria were used for production of blackberry and celery probiotic beverages in two concentrations of 1 and 2% at ambient temperature and refrigerator. The tests included determination of pH, titratable acidity, counting viability of target microorganisms and sensory evaluation. The results showed that with passing time and growth of target bacteria in blackberry and celery beverages, pH was significantly dropped. The results of counting viability showed that among all samples, blackberry beverage containing 2% of the bacteria stored in the refrigerator after 28 days had the highest viability of microorganisms, which is 8.25×107 CFU/ml as well as celery beverage containing 2% of probiotic bacteria stored in the refrigerator after 21 days had the highest viability of microorganisms, 4.02×107 CFU/ml, than the other samples, of which two samples were in these conditions Still called by the name of probiotic beverage. The sensory evaluation also showed that the sensory properties of the BLR1 (Blackberry beverage with 1% bacteria in refrigerator), BLR2 (Blackberry beverage with 2% bacteria in refrigerator) and CLR1 (Celery beverage with 2% bacteria in refrigerator) with their evidence samples also scored without significant difference, but in general, samples of celery beverage scored more than blackberry beverage. From the findings, it can be concluded that blackberry and celery beverages were suitable raw material for growth of Lactobacillus plantarum.

کلیدواژه‌ها English

Drinks
Celery
Blackberry
Healthy
Lactobacillus plantarum
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