عنوان

قابلیت زنده مانی فرم های آزاد، تثبیت و کپسوله شده باکتری لاکتوباسیلوس پلانتاروم با استفاده از بستر زئولیت و آلژینات در برابر شرایط سخت محیطی

شماره

‭۱۱۸۸۷پ‬

زبان متن نوشتاري يا گفتاري و مانند آن

per

عنوان اصلي

قابلیت زنده مانی فرم های آزاد، تثبیت و کپسوله شده باکتری لاکتوباسیلوس پلانتاروم با استفاده از بستر زئولیت و آلژینات در برابر شرایط سخت محیطی

نام نخستين پديدآور

/مهشیدسادات صدرنیا

نام ناشر، پخش کننده و غيره

: ارس

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چاپی

جزئيات پايان نامه و نوع درجه آن

کارشناسی ارشد

نظم درجات

کشاورزی - تکنولوژی مواد غذایی

زمان اعطا مدرک

‮‭۱۳۹۳/۱۱/۲۵‬

کسي که مدرک را اعطا کرده

تبریز

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تثبیت

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زئولیت

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میکروکپسولاسیون

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لاکتوباسیلوس پلانتاروم

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زنده مانی

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آلژینات

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nThe beneficial effects of probiotic microorganisms appear when they arrive in the intestinal medium, viable and in high enough number. The probiotic bacterial cells can be immobilized by microencapsulation and can be protected from the harsh conditions of low pH, bile salts and digestive enzymes that exist in GI tract, thus allowing safe delivery of the cells to the colon, where they will be released. The immobilization of microorganisms onto suitable materials as carriers is currently gaining much attention in various fields of biotechnology. The perfect carrier of microorganism should be inert, nontoxic, of porous structure, relatively cheap, easily available, environmental friendly. Among the inorganic carriers, zeolites have been shown as a good material for the immobilization of microorganisms. In this study Lactobacillus plantarum was immobilized by zeolite and encapsulated using calcium alginate-zeolit-starch, via extrogen technique, and were incubated in simulated gastric juice, simulated intestinal juice. The morphology and size of microcapsules were measured by scanning electron and optical microscopy. The results indicated that the survival of free cells, immobilized cells on zeolite and microencapsulated probiotic increased significantly in simulated gastro-intestinal condition (P < 0.05). Sodium Alginate-Zeolit-Starch coating played a significant role in the protection of probiotic bacteria in simulated gastro-intestinal condition. In the case of free L. plantarum, the initial mean survival count of 9/65 log CFU/mL reduced to 2/17 log CFU/mL after 180 min. Also, the initial mean survival count of immobilized onto zeolite, microencapsulation of Casei with algenate and encapsulation of the immobilizated Casei onto zeolit with alginate-zeolite-starch beads decreased to 5/4, 5/6 and 7/3 log CFU/mL respectively after 180 min. In general, this study indicated that immobilization and microencapsulation could successfully and significantly protect probiotic bacteria against adverse conditio

مستند نام اشخاص تاييد نشده

صدرنیا، مهشیدسادات

يادداشت عمومي

سیاه و سفید

وضعیت فهرست نویسی

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