-quite a comprehensive report on the testing and evaluations of this component found in most "Calamus Oil's"
Quote:
Explanation
ß-asarone and calamus have not previously been evaluated by the
Joint FAO/WHO Expert Committee on Food Additives.
ß-asarone (cis-isomer of 2,4,5-trimethoxy-l-propenylbenzene) is a
constituent of oil of calamus, a flavouring agent derived from the
dried rhizome of Acorus calamus Linn. The ß-asarone content of
calamus oils varies with source of the plant. Indian Acorus calamus
from the Jammu area is tetraploid and yields an oil containing
approximately 75% ß-asarone; Acorus calamus from Kashmir is hexaploid
and yields an oil containing approximately 5% ß-asarone (Vashist &
Handa, 1964). The European variety of the plant is diploid and also
yields an oil with approximately 5% ß-asarone (Larry, 1973). Normally,
only the oil of the diploid variety is used for flavouring aromatic
alcoholic beverages (Usseglio-Tomasset, cited in Larry, 1973). The
roots and rhizomes of Acorus calamus have been used in the Ayurvedic
system of medicine for treating a variety of diseases such as epilepsy
add hysteria (Madan et al., 1960).