Dominance of Δ5-sterols in eight species of the cactaceae
Document Type
Article
Publication Date
1987
Department
Department of Biological Sciences
Abstract
The sterols from eight species in seven genera of the Cactaceae are 24-alkyl-Δ5-sterols. In all eight species, Echinopsis tubiflora, Pereskia aculeata, Hylocereus undatus, Notocactus scopa, Epiphyllum sp., Schlumbergera bridgesii, Opuntia comonduensis and O. humifusa, the dominant sterol is sitosterol (24α-ethylcholest-5-en-3β-ol) at 66-87% of the total sterol composition with the 24ξ-methylcholest-5-en-3β-ol present at 8-33%. Stigmasterol (24α-ethylcholesta-5,22E-dien-3β-ol) is present at 2-8% of the total sterol in P. aculeata, H. undatus, N. scopa and Epiphyllum sp. whereas cholesterol (cholest-5-en-3β-ol) is present in six species at levels of < 0.1-5.0%. Avenasterol (24-ethylcholesta-7,24(28)Z-dien-3/gb-ol) and sitostanol (24α-ethyl-5α-cholestan-3β-ol) are each present in two species.
Publication Title
Phytochemistry
Recommended Citation
Salt, T.,
Tocker, J.,
&
Adler, J.
(1987).
Dominance of Δ5-sterols in eight species of the cactaceae.
Phytochemistry,
26(3), 731-733.
http://doi.org/10.1016/S0031-9422(00)84774-3
Retrieved from: https://digitalcommons.mtu.edu/michigantech-p/7334