Nutritional and Healthful Aspects of Cultured and Culture-Containing Dairy Foods

Shahani, K. M.; Chandan, Ramesh C.

doi:10.3168/jds.s0022-0302(79)83481-5

Cited by 135 publications

(59 citation statements)

References 30 publications

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“…LAB fermentation in yogurt, cheese, and other fermented products was shown to result in increased levels of riboflavin, folate, vitamin B12, niacin, and pyridoxine [65,66]. Soy fermentation with Streptococcus thermophilus ST5 and Lactobacillus helveticus R0052 or Bifidobacterium longum R0175 also caused a small increase in thiamine and pyridoxine concentration that was not statistically significant [67].…”

Section: Biosynthesis Of Other B-group Vitaminsmentioning

confidence: 99%

Biosynthesis of Vitamins by Probiotic Bacteria

Gu¹,

Li²

2016

Probiotics and Prebiotics in Human Nutrition and Health

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Vitamins are important micronutrients that are often precursors to enzymes, which all living cells require to perform biochemical reactions. However, humans cannot produce many vitamins, so they have to be externally obtained. Using vitamin-producing microorganisms could be an organic and marketable solution to using pseudo-vitamins that are chemically produced, and could allow for the production of foods with higher levels of vitamins that could reduce unwanted side effects. Probiotic bacteria, as well as commensal bacteria found in the human gut, such as Lactobacillus and Bifidobacterium, can de novo synthesize and supply vitamins to human body. In humans, members of the gut microbiota are able to synthesize vitamin K, as well as most of the water-soluble B vitamins, such as cobalamin, folates, pyridoxine, riboflavin, and thiamine.

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Section: Biosynthesis Of Other B-group Vitaminsmentioning

confidence: 99%

Biosynthesis of Vitamins by Probiotic Bacteria

Gu¹,

Li²

2016

Probiotics and Prebiotics in Human Nutrition and Health

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“…Lactic acid bacteria have all these characteristics, are not enteropathogenic or enterotoxigenic and are known for their ability to suppress the growth of species of enteric bacteria in vitro (4)(5)(6). Although physiological conditions in vivo are vastly different from in vitro model systems used for most studies, the presence of lactic acid bacteria in the intestine is postulated to limit the growth, metabolism or survival of other enteric bacteria, which may in turn limit pathogenic or toxigenic effects (7)(8)(9).…”

Section: Introductionmentioning

confidence: 99%

Monoassociation with Lactobacillus acidophilus UFV-H2b20 stimulates the immune defense mechanisms of germfree mice

Neumann¹,

Oliveira²,

Cabral³

et al. 1998

Braz J Med Biol Res

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Probiotics are formulations containing live microorganisms or microbial stimulants that have some beneficial influence on the maintenance of a balanced intestinal microbiota and on the resistance to infections. The search for probiotics to be used in prevention or treatment of enteric infections, as an alternative to antibiotic therapy, has gained significant impulse in the last few years. Several studies have demonstrated the beneficial effects of lactic acid bacteria in controlling infection by intestinal pathogens and in boosting the hosts nonspecific immune response. Here, we studied the use of Lactobacillus acidophilus UFV-H2b20, a lactic acid bacterium isolated from a human newborn from Viçosa, Minas Gerais, Brazil, as a probiotic. A suspension containing 10 8 cells of Lactobacillus acidophilus UFV-H2b20 was inoculated into groups of at least five conventional and germfree Swiss mice to determine its capacity to stimulate the host mononuclear phagocytic activity. We demonstrate that this strain can survive the stressing conditions of the intestinal tract in vivo. Moreover, the monoassociation of germfree mice with this strain for seven days improved the hosts macrophage phagocytic capacity, as demonstrated by the clearance of a Gram-negative bacterium inoculated intravenously. Monoassociated mice showed an undetectable number of circulating E. coli, while 0.1% of the original inoculum was still present in germfree animals. Mice treated with viable or heat-killed Lactobacillus acidophilus UFV-H2b20 presented similarly improved clearance capacity when compared with germfree controls. In addition, monoassociated mice had twice the amount of Kupffer cells, which are responsible for the clearance of circulating bacteria, compared to germfree controls. These results suggest that the L. acidophilus strain used here stimulates a nonspecific immune response and is a strong candidate to be used as a probiotic.

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“…Although the mechanism of pathogen inhibition by lactic acid bacteria (LAB) is not completely understood, it is known that these microorganisms inhibit the adherence, multiplication and pathogenic action of invasive microorganisms (Saavedra 1995). The antagonistic mechanisms of LAB may include the activity of organic acids, hydrogen peroxide (Shahani and Chandan 1979;Juven et al 1992), diacetyl, bacteriocins and other compounds (Helander et al 1997). …”

Section: Resultsmentioning

confidence: 99%