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  • Title: The activity of hydrolases of larval stages of Anisakis simplex (Nematoda).
    Author: Lopieńska-Biernat E, Zółtowska K, Rokicki J.
    Journal: Wiad Parazytol; 2004; 50(3):503-7. PubMed ID: 16865960.
    Abstract:
    Activity of hydrolases during the third and fourth larval stage of Anisakis simplex was identified by applying the API ZYM test method. In A. simplex larvae the activity of phosphatases was high, particularly that of acid phosphatase (40 nmol/mg(-1)). Among esterases lack of activity of lipase (C14) is worth noticing while the activity of esterases (C4) and (C8) was high. The activity of those later two enzymes was higher in L3 larvae than in L4 larvae. The highest activity in the subclass of glucosidases was recorded for beta-fucosidase and N-acetyl-beta-glucosaminidase. A higher activity in L3 larvae than in L4 larvae was recorded for: beta-glucuronidase and N-acetyl-beta-glucosaminidase (2-fold) and beta-fucosidase (3-fold). Differently the activity of beta-galactosidase and beta-glucosidase was higher in L4 larvae than in L3 larvae. The tests did not show activity of alpha-galactosidase, beta-glucosidase and alpha-mannosidase on both larval forms.
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