Hydroquinone enzymatic preparation

Wang, E, Amarasinghe, S., Leddy, I, Arnold, M., and Dordick, J. S. 1998. Enzymatically prepared poly(hydroquinone) as a mediator for amperometric glucose sensor. Polymer, 39,123-127. 

Vitamin K Vitamin K exhibits an important anti-hemorrhagic activity, which has increased the interest in developing analytical methods to determine its content in foods. The sample preparation includes various steps such as enzymatic hydrolysis and cleanup using SPE cartridges. Normal-phase LC and RP-LC have been used to separate vitamin K in conjunction with UV detection at 270 nm fluorescence detection can be used only after phylloquinone has been converted to the corresponding hydroquinone after electrochemical or chemical reduction. 

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