Propionibacterium

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Propionibacterium

 

a nonspore-forming, gram-positive, and nonmotile rod that measures 0.5–0.8 × 1.0–1.5 μ. In young cultures, the rods are twisted and slightly branched, while in older cultures they are coccoid.

Propionibacteria form yellow, orange, or red colonies and grow under both aerobic and anaerobic conditions. They are nonpathogenic and live in dairy products (except milk) and in the rumen and intestine of ruminants. Propionibacteria are the causative agents of propionic-acid fermentation. They ferment glucose, lactose, and other carbohydrates; they also ferment some alcohols, forming propionic and acetic acids and CO2 as a result. Enzymes that contain propionibacteria are used in cheese-making: the openings and the flavor and aroma of Swiss cheese are largely determined by propionic-acid fermentation. Propionibacteria are used in the microbiological synthesis of vitamin B12. Various nutrient media that contain cobalt are used to grow propionibacteria.

A. A. IMSHENETSKII

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found that streptococci we the most common genera in both normal and psoriasis skin, whereas staphylococci and Propionibacteria were significantly lower in psoriasis compared with control limb skin.[35] Consistent with the former, Gao et al .
After 28 days of treatment, the antibiotic-treated facial skin had significantly less Actinobacteria species, including corynebacteria and propionibacteria. However, the effect on Staphylococci was limited, "potentially confirming the increased resistance of the bacterium to macrolides," they wrote.
acidophilus, Leuconostoc lactis, Bifidobacterium longum (11), and some strains of Propionibacteria (12 13).
Acne is not an infectious disease in the classical sense; however, inflammatory acne can be viewed as an infection of the blocked pilosebaceous ducts with Propionibacteria which are trapped by cornified plugs within the follicular ducts.
Hennessy AA, Barrett E, Paul Ross R, Fitzgerald GF, Devery R, Stanton C (2012) The production of conjugated alpha-linolenic, gamma-linolenic and stearidonic acids by strains of bifidobacteria and propionibacteria. Lipids 47: 313-327.
More specifically, topics addressed in the first section include identification of new protective cultures and culture components, antifungal lactic acid bacteria and propionibacteria, and the potential of reuterin produced by Lactobacillus reuterie as a broad spectrum preservative.
Most bacterial DFM for young calves contain LAB, whereas dairy propionibacteria are rarely used.
The researchers also discovered differences in infant flora by body site, with streptococci, staphylococci, and propionibacteria being most prevalent on the forehead; streptococci, staphylococci, and corynebacteria being most prevalent on the arms; and clostridia, streptococci, and ruminococci being most prevalent on the buttocks.
Propionicin PLG-1 (MW 10000 Da) was reported to be active against a variety of microorganisms such as propionibacteria and many other G(+) and G(-) bacteria and even yeasts and fungi [1].
The effects of acne treatment with a combination of benzoyl peroxide and erythromycin on skin carriage of erythromycin-resistant propionibacteria. Br J Dermatol 1996; 134:107-113.
Jenseniin P is a bacteriocin that has been shown to kill the various cutaneous propionibacteria responsible for acne vulgaris, a skin condition that infects the sebaceous glands and hair follicles of the face, neck, back and chest of millions of teenagers and adults each year.
The interactions between the propionibacteria and the lactic acid bacteria are particularly crucial for flavor, texture and appearance.