Phenolic antioxidant compounds produced by in vitro shoots of sage (Salvia officinalis L.)

被引:93
作者
Santos-Gomes, PC
Seabra, RM
Andrade, PB
Fernandes-Ferreira, M
机构
[1] Univ Minho, Dept Biol, P-4710057 Braga, Portugal
[2] Univ Porto, Fac Pharm, CEQUP, Pharmacognosy Lab, P-4050 Oporto, Portugal
关键词
salvia officinalis L; sage; shoots; antioxidant compounds; rosmarinic acid; carnosol; phenolics;
D O I
10.1016/S0168-9452(02)00052-3
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
In vitro shoots of sage (Salvia officinalis L.) were established under four different cytokinin supplementations by culturing nodal segments excised from aseptically germinated seedlings. The highest rates of shoot proliferation and linear shoot growth occurred with the supplementation of 1.5 mg/l benzyladenine and 0.05 mg/l dichlorophenoxyacetic acid. However, under these conditions, the specific production of total antioxidant phenolics was the lowest. Variation in kinetin (KIN) concentration (1.5; 2.0; 4.0 mg/l), in the presence of 0.05 mg/l 2,4-D, did not influence significantly the rates of shoot proliferation and linear shoot growth but influenced the production of antioxidant phenolics and biomass. Seventeen compounds were identified in the antioxidant phenolic extracts from shoots: gallic acid, 3-O-caffeoylquinic acid, 5-O-caffeoylquinic acid, caffeic acid, and rosmarinic acid, as phenolic acids; hesperetin, apigenin, hispidulin, cirsimaritin, and genkwanin, as flavonoids; epirosmanol, epirosmanol methyl ether, carnosol, epiisorosmanol ethyl ether, rosmadial, carnosic acid, and methyl carnosate, as phenolic diterpenes. With exception of carnosic acid and methyl carnosate, all the other phenolic compounds (15) were also identified in a commercial sample of this species. Rosmarinic acid and carnosol were the main compounds in all the antioxidant phenolic extracts. The increase in concentration of KIN decreased the accumulation of the most of phenolic diterpenes, particularly that of carnosol. (C) 2002 Elsevier Science Ireland Ltd. All rights reserved.
引用
收藏
页码:981 / 987
页数:7
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