Seasonal variation of the chemical constituents from Croton species.
نویسندگان
چکیده
The terpenes, sterols, alkaloid (glaucine) and alpha-tocopherol show seasonal variation for Croton hemiargyreus hemiargyreus and Croton echinocarpus. The amounts of triterpenes are higher during the tropical summer and in most samples the major sesquiterpene was characterized as caryophyllene. The seasonal variation of glaucine showed a maximum between June and October for C. hemiargyreus, and was present only in January and June in C. echinocarpus.
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عنوان ژورنال:
- Zeitschrift fur Naturforschung. C, Journal of biosciences
دوره 56 5-6 شماره
صفحات -
تاریخ انتشار 2001