The invention relates to the preparation of phenolics derivatives by enzymatic condensation of phenolics selected among pyrocatechol or its derivatives with the glucose moiety of sucrose. The production of said phenolics derivatives is achieved with a glucosyltransferase (EC 2.4.1.5). These O-?-glucosides of selected phenolics are new have a solubility in water higher than that of their parent polyphenol and have useful applications in cosmetic and pharmaceutical compositions such as antioxidative antiviral antibacterial immune-stimulating antiallergic antihypertensive antiischemic antiarrythmic antithrombotic hypocholesterolemic antilipoperoxidant hepatoprotective anti-inflammatory anticarcinogenic antimutagenic antineoplastic anti-thrombotic and vasodilatory formulations or in any other field of application.

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