RT Journal Article
SR Electronic(1)
A1 MACFIE, HALLIDAY J. H.
A1 GUTTERIDGE, COLIN S.
A1 NORRIS, JOHN R.
YR 1978
T1 Use of Canonical Variates Analysis in Differentiation of Bacteria by Pyrolysis Gas-Liquid Chromatography
JF Microbiology,
VO 104
IS 1
SP 67
OP 74
DO https://doi.org/10.1099/00221287-104-1-67
PB Microbiology Society,
SN 1350-0872,
AB Low-resolution pyrolysis gas-liquid chromatography (p.g.l.c.) can differentiate genera of aerobic food spoilage bacteria. Multivariate statistical techniques were applied but neither principal components nor furthest neighbour cluster analysis produced a consistent differentiation although both confirmed the reproducibility of p.g.l.c. When the distance between genera was redefined in terms of Mahalanobis D
2 a generalized concept taking into account scatter around the mean - good differentiation was observed and could be displayed graphically by plotting the genus group means relative to the first two canonical variate axes. The coefficients of the canonical variates provide a strategy for discriminating between the genus groups. Some practical problems in the identification of unknowns using this technique are discussed.,
UL https://www.microbiologyresearch.org/content/journal/micro/10.1099/00221287-104-1-67