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Food additives data book - wordpres

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Enzymes 400<br />

NAME: Beta-galactosidase<br />

CATEGORY: Enzymes<br />

FOOD USE: Milk and milk products<br />

SYNONYMS: Lactase<br />

pH OPTIMUM: Aspergillus niger 4.5; Aspergillus oryzae 4.5; Bacillus spp. 7.3; Kluyveromyces spp. 6.5;<br />

Saccharomyces spp. 6.5<br />

TEMPERATURE OPTIMUM °C: Aspergillus niger 55; Aspergillus oryzae 55; Bacillus spp. 60; Kluyveromyces spp. 45; Saccharomyces<br />

spp. 40<br />

SIDE ACTIVITIES: Aspergillus niger alpha-L-arabinase, glucanase, glucosidase, transferase, invertase, acid protease;<br />

Aspergillus oryzae alpha-L-arabinase, glucanase, glucosidase, transferase, invertase, acid protease;<br />

Bacillus spp. amylase, glucosidase, protease, transferase; Kluyveromyces spp. glucosidase, invertase,<br />

protease, transferase; Saccharomyces spp. glucosidase, invertase, protease, transferase<br />

FUNCTION IN FOODS: Hydrolysis of terminal non-reducing beta-D-galactose residues<br />

TECHNOLOGY OF USE IN FOODS: Milk and milk products – prevents grainy texture, stabilisation of proteins during freezing, removal of<br />

lactase for lactose-free products – soluble or immobilised<br />

SYNERGISTS: Aspergillus niger; Aspergillus oryzae; Bacillus spp.; Kluyveromyces spp.; Saccharomyces spp.<br />

ANTAGONISTS: Aspergillus niger glucose, galactose; Aspergillus oryzae glucose, galactose; Bacillus spp. glucose,<br />

galactose; Kluyveromyces spp. glucose, galactose; Saccharomyces spp. glucose, galactose

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