KAVOA, he added, is an extraction of noble cultivars of kava that is standardized to a 20% kavalactone
content, the active constituents of kava.
alpinia yielded pinostrobin 1, along with two flavonoids (naringenin 7,4'-dimethyl ether 2 and naringenin 7-methyl ether 3), one chalcone (2',6'-dihydroxy-4'-methoxychalcone 4), one diarylheptanoid (3,5-heptanediol-1,7-diphenyl 5), and one kavalactone
(desmethoxyyangonin 6)  (Figure 1).
ratios in the extract were not available from the manufacturer.
profile is equivalent to the natural root.
Islanders shun plants with lots of DHM, a kavalactone
that causes nausea.
profile equivalent to the natural root.
The physiological properties of kava have been demonstrated to result from the kavalactone
content and the chemotype commonly assessed in plants of the same species with genetically defined phytochemical characteristics (Lebot and Levesque 1996; Lebot et al.
Gastrointestinal side effects such as nausea are a known negative effect from kava and is in part due to the kavalactone
dihydromethysticin (Lebot 2006).
Kavain, a kavalactone
and thus a main component of kava extracts, was tested at concentrations according to its content in the kava plant and also to its content in the kava extracts.
complex used for the preparation of the special Altromin pellet batches was a commercial extract (Gehrlicher Pharmazeutische Extrakte, Eurasburg, Germany, batch no.
For example, the anti-anxiety effect of kava's underground parts can be obtained from its kavalactone
constituents, of which there are six that are known to occur in substantial concentrations.