Ershov YuV

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Carotenoids stabilize beta-carotene 15,15'-dioxygenase (CDO) during the isolation of the enzyme from the rabbit small intestinal mucosa using a thiol protector and protease inhibitors and in the course of the enzyme purification. The inhibition of CDO by lycopene, lutein and astaxanthin is competitive. Carotenoids partly protect CDO from the action of both(More)
Extracts of rat and rabbit intestinal mucosa were fractionated with ammonium sulfate. The precipitate contained beta-apocarotenoid-14',13'-dioxygenase (ADO) activity. beta-Apo-14'-carotenal was found to be the product of enzymatic cleavage of beta-apo-8'-carotenol. Activities of ADO and beta-carotene-15,15'-dioxygenase (CDO) were detected in the presence of(More)
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