USE OF RESPONSE SURFACE METHODOLOGY TO EVALUATE THE REDUCING POWER IN BINARY SOLUTIONS OF ASCORBIC ACID WITH NATURAL POLYPHENOLIC ANTIOXIDANTS

Use of response surface methodology to evaluate the reducing power in binary solutions of ascorbic acid with natural polyphenolic antioxidants

Natural polyphenols, ferulic acid (FA) and hesperetin (Hp) were tested for their Fe3+-reducing power, using the TPTZ methodology, as a first step to rank them according to their antioxidant potential.Ranking also included quercetin (Qt), a very Chai Tea well-studied natural, polyphenolic antioxidant, and ascorbic acid (AA).All phenolics considered

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The Bieti Church: The Problem of Dating and the Origin of Masters

This article considers a monument of architecture located in the middle reaches of the Mejuda River in the Ksani gorge in the historical Georgian region Shida Kartli.The Bieti church is a unique monument of the region, representing a half-cave building.The southern part of the church is built of travertine and cobblestone, and the northern part is

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