Wiley
0021-8847
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MÔI TRƯỜNG NUÔI CẤY LACTOBACILLI Dịch bởi AI
Tập 23 Số 1 - Trang 130-135 - 1960
TÓM TẮT: Giới thiệu một môi trường nuôi cấy cải tiến cho vi khuẩn lactobacilli.
Môi trường này hỗ trợ sự phát triển tốt của lactobacilli nói chung, và đặc biệt
hữu ích cho một số chủng nhạy cảm chỉ phát triển kém trong các môi trường chung
khác. Ngoài ra, trong môi trường này không cần sử dụng nước ép cà chua, một
nguyên liệu có sự biến đổi cao. Khi được điều chỉnh một chút, môi trường này
cũng có...
#Lactobacilli #môi trường nuôi cấy #chủng nhạy cảm #nước ép cà chua #thử nghiệm lên men #cải tiến môi trường.
Enumeration of human colonic bacteria producing phenolic and indolic compounds: effects of pH, carbohydrate availability and retention time on dissimilatory aromatic amino acid metabolism
Tập 81 Số 3 - Trang 288-302 - 1996
E.A. SMITH AND G.T. MACFARLANE. 1996. Concentrations of phenolic compounds in
human gut contents were more than fourfold higher in the distal colon (6.2 mmol
kg‐1) compared to the proximal bowel (1.4 mmol kg‐1). Tryptophan metabolites
were never found in more than trace amounts in large intestinal contents and
phenol substituted fatty acids were the major products of aromatic amino acid
fermentati...
Purification, characterization and antimicrobial spectrum of a bacteriocin produced by Pediococcus acidilactici
Tập 65 Số 4 - Trang 261-268 - 1988
An antimicrobial peptide designated pediocin AcH was isolated from Pediococcus
acidilactici strain H. The pediocin AcH was purified by ion exchange
chromatography. The molecular weight of pediocin AcH was determined by SDS‐PAGE
to be about 2700 daltons. Pediocin AcH was sensitive to proteolytic enzymes,
resistant to heat and organic solvents, and active over a wide range of pH.
Pediocin AcH exhibi...
The effect of pH, salt concentration and temperature on the survival and growth of Listeria monocytogenes
Tập 69 Số 1 - Trang 63-72 - 1990
Factorially designed experiments have been used to study the growth and survival
of Listeria monocytogenes in different combinations of pH and salt
concentrations at ambient and chill temperatures. Survival at low pH and high
salt concentration was strongly temperature dependent. The minimum pH values
that allowed survival after 4 weeks from an initial 104 cells were 4·66 at 30†C,
4·36 at 10†C and...
The bactericidal, fungicidal and sporicidal properties of hydrogen peroxide and peracetic acid
Tập 54 Số 3 - Trang 417-423 - 1983
The antimicrobial properties of aqueous solutions of peracetic acid and hydrogen
peroxide have been compared. Peracetic acid exhibited excellent antimicrobial
properties, especially under acidic conditions. Reductions by a factor of 106 in
the numbers of vegetative bacteria are obtained within 1 min at 25°C using a
solution containing 1.3 mmol/l of peracetic acid. Rapid activity against
bacterial ...
Relationships Amongst the Fast‐growing Rhizobia of Lablab purpureus, Leucaena leucocephala, Mimosa spp., Acacia farnesiana and Sesbania grandiflora and their Affinities with Other Rhizobial Groups
Tập 49 Số 1 - Trang 39-53 - 1980
Colony characteristics, growth in litmus milk, precipitation in calcium
glycerophosphate medium and utilization of carbon sources of the root‐nodule
bacteria isolated from the tropical legumes Leucaena, Mimosa, Acacia, Sesbania
and Lablab were similar to fast‐growing rhizobia of temperate legumes,
particularly Rhizobium meliloti. In agglutination tests, isolates from each host
shared antigens with...
Contribution of the microflora to proteolysis in the human large intestine
Tập 64 Số 1 - Trang 37-46 - 1988
Protease activities in human ileal effluent were approximately 20‐fold greater
than in normal faeces. Comparative studies with faeces from a person who did not
have a pancreas suggested that a substantial proportion of the proteolytic
activity in normal faeces was of bacterial origin. Thimerosal, iodoacetate, EDTA
and cysteine significantly inhibited proteolysis in faeces, but not in small
intesti...