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The site-specific natural abundance deuterium distribution of raspberry ketone 3 obtained through a variety of methods has been determined through deuterium nuclear magnetic resonance (NMR) spectroscopy. This technique provided a means of distinguishing between natural raspberry ketone biogenerated from 4-hydroxybenzalacetone 2, obtained from 4-hydroxybenzaldehyde of extractive botanical origin and acetone produced by sugar fermentation, by reduction using baker's yeast and other microorganisms from other raspberry ketone samples obtained in different non-natural ways. The natural origin procedure results also in a commercial sample obtained in an unspecified manner. A mechanistic interpretation has been proposed to explain the difference in site-specific deuterium content between the examined samples.

Additional information

Authors: FRONZA G, Politecnico CNR, Dipartimento Chimica, Milano (IT);FUGANTI C, Politecnico CNR, Dipartimento Chimica, Milano (IT);GUILLOU C, JRC Ispra (IT);RENIERO F, JRC Ispra (IT);JOULAIN D, Robertet SA, Grasse (FR)
Bibliographic Reference: Article: Journal of Agriculture, Food and Chemistry
Record Number: 199711321 / Last updated on: 1997-10-16
Original language: en
Available languages: en
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