نتایج جستجو برای: lactobacillus casei
تعداد نتایج: 19226 فیلتر نتایج به سال:
To develop a safe and effective mucosal vaccine against pathogenic influenza viruses, we constructed recombinant Lactobacillus casei strains that express conserved matrix protein 2 with (pgsA-CTA1-sM2/L. casei) or without (pgsA-sM2/L. casei) cholera toxin subunit A1 (CTA1) on the surface. The surface localization of the fusion protein was verified by cellular fractionation analyses, flow cytome...
Objective(s): This study considered the combination of chitosan nanoparticles with antioxidant-antibacterial fraction extracted from Lactobacillus casei and investigation of possible increasing of antibacterial activity of the fraction in hybrid nanoparticle and the effect of the fraction on the stability of chitosan nanoparticles. Methods: Extra...
ABSTRACT Background and objective: Considering the toxic side effects of chemotherapy in treatment of cancer, anticancer drugs of natural origin including probiotic Lactobacillus strains have recently attracted a lot of attention. Methods: After culturing chronic myeloid leukemia cell line K562 in 96-well plates, effects of different concentrations of ...
Contamination of folic acid assay medium with oleate led to a lag phase when Lactobacillus casei cultures were grown on folic acid but not when whole serum provided the folate source. This led to high assay values when using 20-hour incubation periods but satisfactory results were obtained after 48 hours' incubation. The addition of Tween 80 to the medium eliminated the lag phase and the assay ...
background and objective: semi-dry fermented sausages were manufactured from beef meat in three types: without starter culture (control), inoculated with lactobacillus casei and inoculated with lactobacillus paracasei. probiotic fermented sausages are safe and healthy meat products, which receive high commercial interest and growing market shares. material and methods: the physico–chemical char...
BACKGROUND The indiscriminate use of antibiotics in the treatment of infectious diseases can increase the development of antibiotic resistance. Therefore, there is a big demand for new sources of antimicrobial agents and alternative treatments for reduction of antibiotic dosage required to decrease the associated side effects. OBJECTIVES In this study, the synergistic action of aminoglycoside...
Ninety-two strains of lactic acid bacteria (LAB) were isolated from a Malaysian food ingredient, chili bo, stored for up to 25 days at 28 degreesC with no benzoic acid (product A) or with 7,000 mg of benzoic acid kg-1 (product B). The strains were divided into eight groups by traditional phenotypic tests. A total of 43 strains were selected for comparison of their sodium dodecyl sulfate-polyacr...
In this study, 15 Lactobacillus isolates were found to produce biosurfactants in the mid-exponential and stationary growth phases. The stationary-phase biosurfactants from lactobacillus casei subsp. rhamnosus 36 and ATCC 7469, Lactobacillus fermentum B54, and Lactobacillus acidophilus RC14 were investigated further to determine their capacity to inhibit the initial adhesion of uropathogenic Ent...
مقدمه: پوسیدگی دندانی یکی از شایع ترین بیماری ها در جهان است. باکتری های مختلفی در ایجاد و پیشبرد این ضایعه نقش دارند که لاکتوباسیل ها از آن جمله می باشند. هدف مطالعه حاضر بررسی اثر اسانس گیاه نعنا(menthaspicata) بر سه سوش lactobacillus casei( ptcc 1608)،(ptcc 1058) lactobacillus plantarum و (ptcc 1637) lactobacillus rhamnosus بود. مواد و روش ها: در این مطالعه هم گروهی آزمایشگاهی، تهیه اسانس ...
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