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Titolo:
Three dimensional principal component analysis used for the study of enzyme kinetics. An empirical approximation for the determination of the dimensions of component matrices
Autore:
Morais, H; Ramos, C; Forgacs, E; Jakab, A; Cserhati, T; Oliviera, J; Illes, T; Illes, Z;
Indirizzi:
Hungarian Acad Sci, Inst Chem, Chem Res Ctr, H-1525 Budapest, Hungary Hungarian Acad Sci Budapest Hungary H-1525 Ctr, H-1525 Budapest, Hungary Natl Agron Stn, P-2784505 Oeiras, Portugal Natl Agron Stn Oeiras Portugal P-2784505 Stn, P-2784505 Oeiras, Portugal Univ Nova Lisboa, P-2825 Monte De Caparica, Portugal Univ Nova Lisboa Monte De Caparica Portugal P-2825 De Caparica, Portugal Lorand Eotvos Univ, Dept Operat Res, Budapest, Hungary Lorand Eotvos UnivBudapest Hungary Dept Operat Res, Budapest, Hungary Cent European Univ, Budapest, Hungary Cent European Univ Budapest Hungary nt European Univ, Budapest, Hungary
Titolo Testata:
QUANTITATIVE STRUCTURE-ACTIVITY RELATIONSHIPS
fascicolo: 3, volume: 20, anno: 2001,
pagine: 241 - 247
SICI:
0931-8771(200110)20:3<241:TDPCAU>2.0.ZU;2-G
Fonte:
ISI
Lingua:
ENG
Soggetto:
CHROMATOGRAPHY; LIPOPHILICITY; XYLANASES; MODELS;
Keywords:
xylanase production; Lentinus edode strains; three dimensional principal component analysis;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
25
Recensione:
Indirizzi per estratti:
Indirizzo: Cserhati, T Hungarian Acad Sci, Inst Chem, Chem Res Ctr, POB 17, H-1525 Budapest, Hungary Hungarian Acad Sci POB 17 Budapest Hungary H-1525 st, Hungary
Citazione:
H. Morais et al., "Three dimensional principal component analysis used for the study of enzyme kinetics. An empirical approximation for the determination of the dimensions of component matrices", QSAR, 20(3), 2001, pp. 241-247

Abstract

The effect of cation type and concentration and fermentation time on the xylanase production of four strains of Lentinus edodes was determined. Threedimensional principal component analysis (3D-PCA) followed by nonlinear mapping technique (NLMAP) was employed for the assessment of similarities anddissimilarities between the enzymatic activities. An empirical method was developed for the reduction of the dimensionality of component matrices. Nolinear relationship was found between the effect of cations on the enzyme production and their ion radii, concentration and charge. Enzyme productionwas similar up till 20 days of fermentation then changed considerably. Theenzyme activities of strains also showed marked differences. The results proved that the reduction of the dimensionality of component matrices exertsa negligible effect on the variance explained but it modifies the similarities and dissimilarities among the elements of the original matrix. It was established that 3D-PCA followed by NLMAP is a valuable tool for the evaluation of three dimensional data matrices in enzyme kinetic studies.

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Documento generato il 01/04/20 alle ore 11:41:50