The last few decades, many studies are done polyphenolic compounds, hormones because of their biological and pharmacological activities. Hromones are abundant in the plant world from algae to sawmills. To date, hromones found in the nature of the 2-metilderivati and therefore are classified as C 6-C 4compounds. Peucenin, eugenitol isoeugenitol and hormones are the most common in nature (and Hinreiner Geissman, 1952).
From the oil of clove is extracted colorless, crystalline substance known as eugenin (Meijer and Schmid, 2004). Crossosoma bigelovii plants extract were isolated and well-known hromones eugenin noreugenin (Klausmeyer et al., 2009).
Tuntuwachwuttikul et al. (2006) have isolated four new hormones from plants and to perforate Harrisonia: perforamone A, B, C and D in addition to already known: saikohromona, greveihromenola, eugenina.
The two hromones were isolated from Peperomia vulcanica. These are 5-hydroxy-2-(14′-(E)-nonadekenil) hormones (1) and 5-hydroxy-2-[12′-(3 „, 4“-metilenedioksifenil-dodekanil] hormones (2) (Mbah et al., 2002). Research in the Study Phytochemicals De Carvalho et al. (2005) have resulted in the identification of ten new hormones in leaves of Licania arianeae as follows: four 5,7-dihydroxy-2-alkilhromona, four 5,7-dihydroxy -6-chloro-2-alkilhromona and two 5,7-dihydroxy-6 ,8-dichloro-2-alkilhromona.
Bondge (2009) found that hormones in a number of plants involved in the growth cycle and encourage the consumption of oxygen in the tissues. They are photochemically very active (Kumar and Yusuf, 2006).
References:
1. Bondge SP, A facile synthesis of new 6-acetamido-3-aroyl-2-styryl chromones, Indian Journal of Chemistry, Vol. 48B, 2009, 1435-1437
2. De Carvalho MG, Lucilene Faustina De Oliveira Cndido, Patrcia Miranda Da Costa, Victor Marcos Rumjanek, Chromones arianeae from Licania (Chrysobalanaceae), Natural Product Research, Volume 19, 2005, pages 7-12
3. TA Geissman and Elly Hinreiner, Theories of the Biogenesis of Flavonoid Compounds (Part I), Botanical Review, Vol. 18, no. 2, 1952
4. Klausmeyer P., Qin Zhou, Dominic A. Scudiero, Badarch Uranchimeg, Giovanni Melillo, John H. Cardellini, II, Robert H. Shoemaker, Ching-jer Changand Thomas G. McCloud, cytotoxic and HIF-1α Inhibitory Compounds from Crossosoma bigelovii, J. Nat. Prod., 2009, 72 (5), pp 805-812
5. Kumar R. and M. Yusuf, Chromones and bischromones: an account of photoinduced reactions, ARKIVOC 2006 (ix) 239-264, ISSN 1424-6376 Page 239
6. Mbah J. Maguerite HK Tchuendem, Pierre Tane and Olov Sterner, Twochromones from Peperomia vulcanica, Phytochemistry, Volume 60, Issue 8, August 2002, Pages 799-801
7. Meijer Th. M., H. Schmid, Über die des Konstitution Eugenins, Helvetica Chimica Acta, Volume 31 Issue 6, Pages 1603 to 1607, 2004
8. Tuntuwachwuttikul P. Phansa P. Pootaeng-On Y. and Taylor W, Chromones from the Branches of Harrisonia perforate, Chem. Pharm. Bull. 54 (1) 44-47 (2006)
Author: MPG71
agroekonomija 