..thanks
beautifulsorrow..i don't think A. nilotica has been properly investigated..it has a wide distribution (most of Africa, Middle East, India & parts of Asia) and several varieties..almost always the reports of 'trace' or no alkaloids in acacias are based on single experiments..i've known A. obtusifolia to contain almost nothing..similarly, if we took a few nexus reports on A. floribunda at face value, we could conclude there was nothing in it, yet experienced researchers have found the species to usually contain fairly large amounts of DMT..i think the art of working with and extracting acacias is quite different to the rushed world of phytochemical 'screening' which often reports a low % in a plant..seasonal or genetic factors may be crucial..
the huge amounts of ethnobotanic data on A. nilotica suggests that, in the right place or time, it must contain some quite active and interesting things..
Trout 2004 writes of A. nilotica..
Trace amounts [5meoDMT] tentatively observed in seeds
(unconfirmed), 1995 tlc by J. Appleseed. Not confirmed by subsequent assay. Negative alkaloid assay of roots, stem-bark and leaves by Odebiyi & Sofowora (1978 )
in
Preliminary phytochemical and antimicrobial screening
of 50 medicinal plants from Nigeria D. Kubmarawa, G. A. Ajoku, N. M. Enwerem and D. A. Okorie [2007] tested many of the same plants tested by Odebiyi & Sofowora..they wrote:
..some of the results obtained are not in agreement with the previous findings. For example alkaloids were found to be absent in the stem bark of Anogeisus leiocarpus which is contrary to the findings of Baowa et al. (1978 ) and Atal et al. (1978 ). This might be due to climatic and environmental factors.
....they did find alkaloids in
A. senegal and
tortillis , but not nilotica..
http://www.tropicalforages.info/key/Forages/Media/Html/Acacia_nilotica.htm reports:
"
A. nilotica subsp. nilotica is restricted to well-drained seasonally flooded and riverine habitats from Senegal and northern Nigeria, to Sudan, Arabia and India.
A. nilotica subsp. kraussiana is the most common form in east tropical Africa including Botswana, Zambia, Rhodesia, Malawi, Tanzania, Angola, Mozambique, Transvaal, and Natal.
A. nilotica subsp. adstringens is the commonest variety in west Africa, from Senegal to Nigeria and widespread in northern parts of tropical Africa. Occurs in wooded grasslands, savannas and dry scrub forests above the flood plains. [
this is probably the variety tested by Odebiyi & Sofowora]
Naturalised in: Northern, sub-humid Australia where it is considered to be an invasive weed. Also naturalised in areas of eastern Indonesia."
and there are also
subsp.cupressiformis, subsp.tomentosa, subsp.subalta, subsp.leiocarpa, and subsp.hemispherica..! see chart attached below [from
Manual on taxonomy of Acacia nilotica]..
..according to
Medicinal Plants In Tropical West Africa by Oliver-Bever, A. nilotica contains 'Harmane derivatives' and tryptamine..
and lastly, Shulgin reports DMT in A. nilotica in TIKHAL, but because he doesn't provide a reference has been queried by Trout and others..
..
A. nilotica..very interesting and worthy of more study..