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Guar galactomannan (referred to as guar gum) is a versatile polysaccharide, obtained from the seeds of the shrub Cyamopsis tetragonolobus, which finds several applications in either its native or chemically modified form. For textile printing, guar gum can also be partially depolymerised in order to promote dye penetration, improve swelling in water and achieve the desired rheological properties....
Two different catalases present in cell-free extracts of the yeast Trigonopsis variabilis have been separated by dye-binding chromatography. Both enzymes, named TvC-I and TvC-II, behave as members of the ''typical catalases'' family: they have a broad pH activity profile and do not possess peroxidase activity, are quite stable when treated with ethanol/chloroform mixtures, are inhibited by azide and...
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