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  • Title: [Chemical diversity of the biological active ingredients of salvia officinalis and some closely related species].
    Author: Máthé I, Hohmann J, Janicsák G, Nagy G, Dora R.
    Journal: Acta Pharm Hung; 2007; 77(1):37-45. PubMed ID: 17518111.
    Abstract:
    Comparative studies on the volatile and non-volatile fractions of 6 species. i.e. Salvia officinalis, S. tomentosa, S. fruticosa, S. candelabrum, S. ringens, S. lavandulifolia of the Section Salvia (Lamiaceae) have been carried out. Both fractions provide the chemical pattern matches to the chemotaxonomic character of Subfamily Nepetoideae in Erdtmanr two subfamiliar system. S. lavandulifolia had the highest essential oil content, followed by S. fruticosa, S. tomentosa, S. officinalis and S. candelabrum. S. ringens contains volatile oil only in traces. The neurotoxin thujone content was the highest in the S. officinalis oils and in that of S. fruticosa. No thujone was detected in S. lavandulifolia. The other species, e.g.: S. tomentosa contain this compound only in moderate concentrations (less than 10%). Among the non-volatile fractions of the plant ingredients the triterpene ursolic and oleanolic acids had the highest concentration in the leaves. Despite some rare cases, ursolic acid dominates the tritepene fraction. Rosmarinic and caffeic acids were measured in similar concentrations, in all species. As the case of S. officinalis shows, these compounds vary significantly in all organs during the vegetation period. Caffeic acid is also ubiquitous in the genus Salvia but as our data suggest it occurs in an order of magnitude lower concentration than rosmarinic acid. The isolation of phenylethanolid martynoside, though obtained in a rather small concentration, is of great chemotaxonomic significance, as this is the first phenylethanolid type glycoside isolated not only from the Salvia genus but also from the entire Subfamily Nepetoideae. As pheylethanolids are rather common and accumulate in significant concentrations in plants of the Subfamily Lamioideae, our opinion that the chemical differences between the two subfamilies are less qualititative than quantitative, is confirmed. This holds true of other chemical markers like monoterpenes, ursolic and oleanolic acids, caffeic acid and now phenylethanolids. Diterpenes i.e. 7-methyl carnosoate, rosmanol 7- methylether, sageon from S. officinalis, 7alpha-acetoyroyleanone, 7alpha-hydroxyroyleanone, royleanone, 6,7-dehydroroyleanone from S. tomentosa and candesalvoquinone, candelabroquinone, 12-O-methylcandesalvone, candesalvone B methyl ester and candelabrone have been isolated from Salvia candelabrum. All of the compounds belong to the abietane type of diterpenoids and have pronounced antioxidant effect.
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