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Aim:To analyze the volatile chemical components of the herbal pair RhizomaLigustici Chuanxiong-Radix Paeoniae Rubra(RLC-RPR)and compare them withthose of each of the herbs alone.Methods:Gas chromatography-mass spectrom-etry(GC-MS),a chemometric resolution technique using the heuristic evolvinglatent projections(HELP)method,and the overall volume integration methodwere used.Results:In total,52,38,and 61 volatile chemical components in RLC,RPR,and RLC-RPR essential oils were determined,respectively,accounting for95.14%,95.19%,and 89.68% of the total contents of essential oil of RLC,RPR,andRLC-RPR,respectively.The main volatile chemical components werebutyldienephthalide(20.65%)and ligustilide(50.15%)for RLC;and n-hexadecanoicacid(20.18%),[Z,Z]9,12-octadecadienoic acid(30.11%),2-hydroxy-benzaldehyde(17.08%)for RPR,and butyldienephthalide(14.80%),and ligustilide(38.91%)forRLC-RPR.The main volatile chemical components of RLC-RPR were almost thesame as those of RLC,but the relative amounts were altered.Conclusion:Thenumber of volatile chemical components in RLC-RPR was almost equal to the sumof the number in the 2 constituent herbs,but the relative amounts were altered.Furthermore,an acid-base reaction takes place during the process of decoctingthe herbs.The data gathered in this study may be helpful for understanding thesynergistic nature of this herb pair in traditional Chinese medicine.
Aim: To analyze the volatile chemical components of the herbal pair RhizomaLigustici Chuanxiong-Radix Paeoniae Rubra (RLC-RPR) and compare them withthose of each of the herbs alone.Methods: Gas chromatography-mass spectrom-etry (GC-MS),a Chemometric resolution technique using the heuristic evolvinglatent projections(HELP)method,and the overall volume integration methodwere used.Results:In total,52,38,and 61 volatile chemical components in RLC,RPR,and RLC-RPR essential oils were determined,respectively ,accounting for95.14%,95.19%,and89.68% of the total contents of essential oil of RLC,RPR,andRLC-RPR,respectively.The main volatile chemical components werebutyldienephthalide (20.65%)and ligustilide (50.15%)for RLC; And n-hexadecanoicacid (20.18%), [Z,Z]9,12-octadecadienoic acid (30.11%), 2-hydroxy-benzaldehyde (17.08%) for RPR, and butyldienephthalide (14.80%), and ligustilide (38.91%) forRLC-RPR.The main volatile chemical components of RLC-RPR were almost the same as those of RLC, but the relative amounts w Ere altered.Components:The number of volatile chemical components in RLC-RPR was almost equal to the sumof the number of the 2 constituent herbs,but the relative amounts were altered.Furthermore,an acid-base reaction takes place during the process of decoctingthe herbs .The data gathered in this study may be helpful for understanding thesynergistic nature of this herb pair in traditional Chinese medicine.