Metallo-Anthocyanins. I

Anthocyanins and their variation in red wines I. Monomeric anthocyanins and their color expression.

Originating in the grapes, monomeric anthocyanins in young red wines contribute the majority of color and the supposed beneficial health effects related to their consumption, and as such they are recognized as one of the most important groups of phenolic metabolites in red wines. In recent years, our increasing knowledge of the chemical complexity of the monomeric anthocyanins, their stability,...

Observations on Anthocyanins. I: The Anthocyanins of the Young Leaves of the Grape Vine.

Anthocyanins

versus �l�bal features,� res�ectively (R�mei et al. ‘Rhythmic TMS �ver �arietal c�rtex links �istinct brain frequencies t� �l�bal versus l�cal visual �r�cessin�’ Curr. Bi�l. 21,� 334–337). If true,� this inter�retati�n �f the c��in� architecture �f the visual brain is si�nificant. But I al�ays ��rry that future ex�eriments �ill ��int �ut a mistake in �ur inter�retati�n �f the brain measurements...

Metallo-intercalators and metallo-insertors.

Since the elucidation of the structure of double helical DNA, the construction of small molecules that recognize and react at specific DNA sites has been an area of considerable interest. In particular, the study of transition metal complexes that bind DNA with specificity has been a burgeoning field. This growth has been due in large part to the useful properties of metal complexes, which poss...

Leuco-anthocyanins. 2. Systematic distribution of leuco-anthocyanins in leaves.

In Part 1 (preceding paper) a method of demonstrating the presence of leuco-anthocyanins in plant tissues has been described. A modified version of this method, in which paper chromatographic separation of the anthocyanidins is not carried out, has been applied to the leaves of several hundred species of plants. As a confirmatory test, in the great majority of instances the vanillin reaction ha...