Wiley
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The inhibition of vegetative cell outgrowth and division from spores of Bacillus cereus T by hen egg albumen
Wiley - Tập 52 Số 1 - Trang 67-73 - 1982
Spores of Bacillus cereus T germinated and formed vegetative cells in Tryptone
Soya broth (TSB), pH 9‐0 and 7‐4 at 30oC. Spores germinated but did not form
vegetative cells when suspended in hen egg white (pH 9‐0) supplemented with
L‐alanine and inosine. Using a split image eyepiece, the volumes of germinating
spores in egg white were seen to increase as a result of increases in both
length and br...
Heat‐resistant Bacteria in Pasteurized Whole Egg
Wiley - Tập 46 Số 3 - Trang 601-613 - 1979
Samples of egg melange taken from an egg packing station contained an average of
7·3 x 104 organisms/ml which survived laboratory pasteurization at 65°C for 3
min. Many of the organisms surviving pasteurization were found to be coryneform
bacteria related to Microbacterium lacticum which could be differentiated into
several groups. The remainder were a miscellaneous collection of unidentified
cocc...
Purification, characterization and antimicrobial spectrum of a bacteriocin produced by Pediococcus acidilactici
Wiley - 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...
Antimicrobial activity of lactic acid bacteria isolated from sour doughs: purification and characterization of bavaricin A, a bacteriocin produced by Lactobacillus bavaricus MI401
Wiley - Tập 75 Số 2 - Trang 113-122 - 1993
Three hundred and thirty‐five lactic acid bacteria were isolated from sour
doughs and screened for antagonistic activity. Of these 145 showed activity
against one or several of the indicator strains used in the screening. The
antimicrobial activity of 18 isolates were due to a proteinaceous compound.
These 18 isolates belonged to three different Lactobacillus species:
Lactobacillus bavaricus, Lact...
THE EFFECT OF THE TETRACYCLINE COMPOUNDS ON THE STORAGE LIFE AND MICROBIOLOGY OF CHILLED EVISCERATED POULTRY
Wiley - Tập 21 Số 2 - Trang 313-329 - 1958
SUMMARY: Chlortetracycline, oxytetracycline and tetracycline, incorporated at 10
p/m in the ice slush used for cooling, were equally efficient in extending the
storage life of eviscerated poultry which was subsequently frozen, thawed and
stored at 1°. There was complete correlation between the sensory assessment of
‘off’odour and the total numbers of micro‐organisms present when these were
determi...
METHODS FOR THE ISOLATION OF FAECAL STREPTOCOCCI (LANCEFIELD GROUP D) FROM BACON FACTORIES
Wiley - Tập 19 Số 2 - Trang 193-203 - 1956
SUMMARY: Two methods have been developed for isolating and enumerating group D
faecal streptococci from localities such as bacon factories where they are
heavily outnumbered by other organisms. The first depends on presumptive counts
in a Lab‐Lemco‐peptone‐glucose broth (pH 6·0) containing 0·1% of thallous
acetate with confirmation by streaking on tetrazolium agar. The other method
involves direct...
High frequency transformation of Streptomyces niveus protoplasts by plasmid DNA
Wiley - Tập 71 Số 5 - Trang 422-427 - 1991
H.A. HUSSAIN AND D.A. RITCHIE. 1991. A procedure has been developed for
transforming protoplasts of the novobiocin producing strain Streptomyces niveus
at high frequency. This required the isolation of strains LH13 and LH20
defective in DNA restriction from the wild type (ATCC 19793) which is
transformed at very low frequencies. The LH13 and LH20 derivatives were obtained
by curing pIJ702 DNA from...
Bacterial sources of putrescine and cadaverine in chill stored vacuum‐packaged beef
Wiley - Tập 61 Số 2 - Trang 117-123 - 1986
Of the meat strains of streptobacteria, leuconostocs, Enterobacteriaceae and
Brochothrix thermosphacta tested, only Hafnia alvei and Serratia liquefaciens
showed diamine‐producing potential during growth in pure culture on beef stored
in vacuum packs at 1°C. Both organisms produced cadaverine at concentrations
similar to those reported previously in naturally contaminated beef stored under
the sam...
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