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Food additives data book - wordpres

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Enzymes 436<br />

NAME: Metallo-neutral proteases<br />

CATEGORY: Enzymes<br />

FOOD USE: Fermented beverages/ Flour/ Hydrolysed proteins/ Meat<br />

SYNONYMS: EC 3.4.24.4<br />

pH OPTIMUM: Aspergillus oryzae 7; Bacillus thermoproteolyticus 8; Bacillus spp. 7<br />

TEMPERATURE OPTIMUM °C: Aspergillus oryzae 50; Bacillus thermoproteolyticus 65; Bacillus spp. 50<br />

SIDE ACTIVITIES: Aspergillus oryzae other proteases; Bacillus thermoproteolyticus other proteases; Bacillus spp. other<br />

proteases<br />

FUNCTION IN FOODS: Hydrolysis of proteins<br />

TECHNOLOGY OF USE IN FOODS: Preferential cleavage of bonds with hydrophobic residues<br />

SYNERGISTS: Aspergillus oryzae; Bacillus thermoproteolyticus; Bacillus spp.<br />

ANTAGONISTS: Aspergillus oryzae – reducing agents, chelating agents, halogens; Bacillus thermoproteolyticus –<br />

reducing agents, chelating agents, halogens; Bacillus spp. – reducing agents, chelating agents, halogens<br />

REFERENCE: Owusu-Ansah, Y. J. (1991) Enzymes. In: Smith, J. (Ed.), <strong>Food</strong> Additive User’s Hand<strong>book</strong>. Blackie<br />

A & P, London, pp. 120–150.

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