نتایج جستجو برای: leuconostoc
تعداد نتایج: 1338 فیلتر نتایج به سال:
Following the recognition of four primary colonial types of Leuconostoc mewnteroies by McCleskey et al. (1947), Leiva-Quiros and McCleskey (1947) studied the serological relationships among strains of the four types. They employed glucose-grown cultures for the production of antibodies so the cell antigens could be studied without the complication introduced by the dextran hapten. Several worke...
Pulsed-field gel electrophoresis analysis of chromosomal single and double restriction profiles of 17 strains belonging to three genera of 'Leuconostocaceae' was done, resulting in physical and genetic maps for three Fructobacillus, six Leuconostoc and four Weissella strains. AscI, I-CeuI, NotI and SfiI restriction enzymes were used together with Southern hybridization of selected probes to pro...
Morphological, cultural, physiological and biochemical characteristics were employed to identify lactic acid bacteria (LAB), isolated from drinking yoghurt in different areas in Fars province, Iran. From 18 drinking yoghurt samples a total of 673 LAB positives were determined, in which 117 (17.38%) and 556 (82.62%) were identified as lactic acid cocci and lactic acid bacilli, respectively. Addi...
Lactic acid bacteria, including lactobacilli, enterococci, leuconostoc and weissella species isolated from Iranian traditional fermented camel milk (Chal) were assessed for the incidence of virulence determinants (gelE, efaAfm, efaAfs, ace, espfs, cylM, cylA and cylB), sensitivity to various antibiotics and virulence phenotypes. The incidence of virulence genes was determined by polymerase cha...
A serologically reactive polysaccharide of dextran nature was produced from sucrose by the action of some enzyme or similar heat-labile agent contained in sterile filtered extracts derived from sucrose broth cultures of Leuconostoc mesenteroides. Rigorous controls were included to prove that this reaction occurred in the absence of microorganisms. Purified preparations of the dextran formed by ...
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