K. arborea

Five alkaloids, 244-248, have been isolated that contain a new ring system resulting from the fission of the 16,17-bond in fruticosine. The structure of methyl 11,12-methylenedioxy-chanofruticosinate (Alkaloid C, 246), a constituent of the leaves of Kopsia officinalis (190) and K. arborea Bl. (191), was established by X-ray crystallographic analysis (190). Alkaloids A and B lack the methylenedioxy group, and it was deduced, on the basis... 

Greshoff (107) had already drawn attention to the fact that a large number of Javanese plants are alkaloid bearing and had prepared crystalline alkaloids from K. flavida Blume, K. arborea Blume, and ascertained their presence in K. albiflora Boerl. and the closely related Calpicarpum roxburghii G. Don which is supposedly synonymous with K. fruticosa A. DC. 

Fig. 7.1 Total nutrient stocks and in plant biomass plus soil in rain forest, newly planted Pinus caribaea (6 months old), P. caribaea, and Gmelina arborea plantations at the end of the first rotation (9.5 and 8.5 years old, respectively), and second rotation P. caribaea (1.5 years old) at Jari (Sanchez et al. 1985). H = harvest loss from trees taken when clearing the rain forest for the plantations L = leaching. Total nutrient stock is defined as the sum of all the nutrients in plant biomass (aboveground, litter, detritus, roots) plus total N, available P (extracted by the Mehlich method), and exchangeable K, Ca, and Mg in the top meter of the soil.

Sugiura, Y., Matsuda, K., Yamada, Y., Nishikawa, M., Shioya, K., Katsuzaki, H., Imai, K., and Amano, H. (2007). Anti-allergic phlorotannins from the edible brown alga, Eisenia arborea. Food Sci. Technol. Res. 13,54-60. 

Govindachari, T. R., P. C. Parthasarathy, H. K. Desai, and P. A. Mohamed Cluytyl ferulate, a new long chain ester from Gmelina arborea Linn, and Lannea grandis (Denust.). Indian J. Chem. 9, 1027 (1971). 

Unkonen K 1982 Nonvolatile dichloromethane extractives of Gmelina arborea. Tappi 65 71... 

Glombitza, K.W. and Gerstberger, G. (1985) Phlorotannins with dibenzodioxin structural elements from the brown alga Eisenia arborea. Phytochemistry, 24, 543-551. 

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