Biology of the bifidobacteria.

Poupard, J A; Husain, I; Norris, R F

doi:10.1128/mmbr.37.2.136-165.1973

Cited by 82 publications

(21 citation statements)

References 59 publications

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“…The relationship between viscosity of products and the quantity of polysaccharides in cultures of the 2 types yoghurt bacteria, tested separately, was non-linear (Cerning et al, 1986(Cerning et al, , 1988. It has also been reported that bifidobacteria can synthesize polysaccharides (Poupard et al, 1973;Shimamura et al, 1990) but in our experiments, only the lactobacilli produced polysaccharides. Furthermore, viscosity is not affected only by polysaccharides, but probably also by other physicochemical factors which remain to be defined, notably gelling of soymilk (Metwalli et al, 1982;Wolf, 1972).…”

Section: Discussionsupporting

confidence: 50%

Bacterial Growth and Volatile Compounds in Yoghurt‐Type Products from Soymilk ContainingBifidobacterium ssp

Murti

Bouillanne

Landon

et al. 1993

Journal of Food Science

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The growth of bacteria normally used to produce yoghurt was compared in soymilk and cow milk. Whether or not Bifidobnc&ium ssp. was present, fermented soymilks [soyoghurt (S), soyoghurt f bifidobacteria (SB)] were less acidic than fermented cow milks [yoghurt (Y), yoghurt + bifidobacteria (YB)]. When bifidobacteria were present (in SB), streptococci were more numerous than lactobacilli. Bifidobacteria in YB stimulated maximal growth of both yoghurt bacteria. In comparison to nonfermented milks, acetaldehyde and diacetyl increased in all cultures. Ethanol increased only in S/SB and acetone was detected only in Y/YB. Quantities of volatile products in Y/'YB were slightly lower than those in Y/S. In all cultures, n-hexanal was almost totally absent.

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Section: Discussionsupporting

confidence: 50%

Bacterial Growth and Volatile Compounds in Yoghurt‐Type Products from Soymilk ContainingBifidobacterium ssp

Murti

Bouillanne

Landon

et al. 1993

Journal of Food Science

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“…As for the scarceness of bifidobacteria Griitte & Miiller-Beuthow (12) have reported a decrease of faecal bifidobacteria in infants between 1958 and 1978. Poupard et al (13) found that it has become increasingly difficult to isolate bifidobacteria in their large urban hospital, while they still readily found them in a small suburban hospital. Gothefors et al (14) found bifidobacteria in 40% of stool specimens from breastfed infants at 6 days of age.…”

Section: Discussionmentioning

confidence: 99%

The Composition of the Faecal Microflora in Breastfed and Bottle Fed Infants from Birth to Eight Weeks

1985

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Recent technical advances have improved the possibilities to classify anaerobic bacteria. The aim of the present study was to examine the validity of the time-honoured opinion that the faecal flora is dominated by bifidobacteria in breastfed infants but not in bottle fed ones. The composition of the faecal flora of 15 breastfed and of 7 bottle fed infants was followed from birth to 8 weeks. Strictly anaerobic conditions were carefully applied. At 5 days and 3 weeks the incidence of Staph. epidermidis was significantly greater in the breastfed group compared to the bottle fed one. We were unable to confirm earlier reports of difference in the anaerobic flora between breastfed and bottle fed infants. In both feeding groups Bacteroides dominated among the anaerobic bacteria and bifidobacteria occurred in less than half of the faecal specimens. The results of the study add to other recent observations that it has been increasingly difficult to demonstrate bifidobacteria in babies delivered in large, urban hospitals. We found different frequencies of bifidobacteria in infants from different wards, suggesting the importance of environmental factors in gut colonization after delivery.

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“…It is now accepted that the genus Bifdobacterium is a member of the Actinomycetaceae family. This assumption has been made on the basis of a variety of morphological and colonial characteristics (Poupard 1973). Nevertheless, the production of L-lactate as a major metabolic end product should not be disregarded.…”

Section: Introductionmentioning

confidence: 99%

Regulatory effects of bifidobacteria on the growth of other colonic bacteria

Gibson

Wang

1994

Journal of Applied Bacteriology

606

334

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In the human large intestine bifidobacteria are a numerically important group of micro-organisms which are considered to exert a range of biological activities related to host health. One aspect is the inhibitory effect of these bacteria on other species, possibly excluding long term colonization by invasive pathogens. It has been suggested that the mechanism of inhibition carried out by bifidobacteria is related to the fermentative production of acids such as acetate and lactate. Experiments reported in this paper attempted to address this theory. Co-culture experiments whereby Bifidobacterium infantis was incubated with Escherichia coli and Clostridium perfringens, in a variety of fermentation systems, indicated that the bifidobacterium was able to exert an inhibitory effect not necessarily related to acid production. Further studies showed that eight species of bifidobacteria could variously excrete an anti-microbial substance with a broad spectrum of activity. Species belonging to the genera Salmonella, Listeria, Campylobacter and Shigella, as well as Vibrio cholerae, were all affected. These results show that bifidobacteria are able to exert more than one mechanism of inhibition, which may be of some importance with regard to protection against gastroenteritis.

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Biology of the bifidobacteria.

Cited by 82 publications

References 59 publications

Bacterial Growth and Volatile Compounds in Yoghurt‐Type Products from Soymilk ContainingBifidobacterium ssp

Bacterial Growth and Volatile Compounds in Yoghurt‐Type Products from Soymilk ContainingBifidobacterium ssp

The Composition of the Faecal Microflora in Breastfed and Bottle Fed Infants from Birth to Eight Weeks

Regulatory effects of bifidobacteria on the growth of other colonic bacteria

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