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Bactericidal effect of hydrolysable and condensed tannin extracts on Campylobacter jejuni in vitro
ID
Anderson, Robin C.
(
Avtor
),
ID
Vodovnik, Maša
(
Avtor
),
ID
Min, Byeng R.
(
Avtor
),
ID
Pinchak, William Earl
(
Avtor
),
ID
Krueger, Nathan A.
(
Avtor
),
ID
Harvey, Roger B.
(
Avtor
),
ID
Nisbet, David J.
(
Avtor
)
URL - Predstavitvena datoteka, za dostop obiščite
http://www.springerlink.com/content/k4724053553718h7/fulltext.pdf
Galerija slik
Izvleček
Strategies are sought to reduce intestinal colonisation of food-producing animals by Compylobacter jejuni, a leading bacterial cause of human foodborne illness worlwide. Presently, we tested the antimicrobial activity of hydrolysable-rich blackberry, cranberry and chestnut tannin extracts and condensed tannin-rich mimosa, querbracho and sorghum tannins (each at 100 mg/mL) against C. jejuni via disc diffusion assay in the presence of supplemental casamino acids. We found that when compared to non-tannin-treated controls, all teste tannins inhibited the growth of C. jejuni and that inhibition by the condensed tannin-rich mimosa and querbracho extracts was mitigated in nutrient-limited medium supplemented with casamino acids. When tested in broth culture, both chestnut and mimosa extracts inhibited growth of C. jejuni and this inhibition was much greater in nutrient-limited than in full-strength medium. Consistent with observations from the disc diffusion assay, the inhibitory activity of the condensed tannin-rich mimosa extracts but not the hydrolysable tannin-rich chestnut extracts was mitigated by casamino acid supplementation to the nutrient-limited medium, likely because the added amino acids saturated the binding potential of the condensed tannins. These results demonstrate the antimicrobial activity of various hydrolysable and condensed tannin-rich extracts against C. jejuni and reveal that condensed tannins may be less efficient than hydrolysable tannins in controlling C. jejuni in gut environments containing high concentrations of amino acids an soluble proteins.
Jezik:
Angleški jezik
Ključne besede:
mikrobiologija
,
Camylobacter jejuni
,
tanini
,
bakteriocidi
Vrsta gradiva:
Delo ni kategorizirano
Tipologija:
1.01 - Izvirni znanstveni članek
Organizacija:
BF - Biotehniška fakulteta
Leto izida:
2012
Št. strani:
Str. 253-258
Številčenje:
Vol. 57, no. 4
PID:
20.500.12556/RUL-36562
UDK:
579
ISSN pri članku:
0015-5632
DOI:
10.1007/s12223-012-0119-4
COBISS.SI-ID:
3046280
Datum objave v RUL:
10.07.2015
Število ogledov:
1377
Število prenosov:
274
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Objavi na:
Gradivo je del revije
Naslov:
Folia microbiologica
Skrajšan naslov:
Folia microbiol.
Založnik:
Springer
ISSN:
0015-5632
COBISS.SI-ID:
25470976
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