Applied and environmental microbiology, 69(1), 367-372 (2003-01-07)
Submerged cells of the basidiomycete Nidula niveo-tomentosa, a microbial producer of 4-(4-hydroxyphenyl)-butan-2-one, were supplemented with (13)C-labeled L-phenylalanines and with [1-(13)C]glucose. Labeled transformation products were detected by a novel method of analyzing stable isotope-labeled metabolites, gas chromatography (GC) coupled to an
Production levels of p-coumaric acid (p-CA), p-hydroxyphenylbut-3-ene-2-one (benzalacetone), and p-hydroxyphenyl-2-butanone (raspberry ketone) were measured in raspberry cell suspension cultures to investigate metabolite dynamics in a short (two-step) pathway. Intracellular concentrations of benzalacetone and the raspberry ketone fluctuated during the time
Raspberry ketone (RK) is a natural phenolic compound of the red raspberry. The dietary administration of RK to male mice has been reported to prevent high-fat diet-induced elevation in body weight and to increase lipolysis in white adipocytes. To elucidate
Food additives & contaminants. Part A, Chemistry, analysis, control, exposure & risk assessment, 27(4), 433-446 (2010-01-16)
This study aimed to compare different methods of assessing dietary exposure to flavourings in the context of a stepwise approach. The dietary exposure to four flavourings--raspberry ketone, glycyrrhizinic acid, coumarin, and caffeine--was determined. When dietary exposure exceeded the safety limits
The title chiral amine, 3-(4-methoxyphenyl)-1-methylpropylamine 5 has been synthesized from naturally abundant betuligenol 1 in three steps and also in good yield. Furthermore, the versatile intermediate 3 could be manipulated for the preparation of chiral disulphide 7. The amine derivative
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