Fractionation of volatile constituents from curcuma rhizome by preparative gas chromatography.

F Q Yang, H K Wang, H Chen, J D Chen, Z N Xia
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引用次数: 26

Abstract

A preparative gas chromatography (pGC) method was developed for the separation of volatile components from the methanol extract of Curcuma rhizome. The compounds were separated on a stainless steel column packed with 10% OV-101 (3 m × 6 mm, i.d.), and then, the effluent was split into two gas flows. One percent of the effluent passed to the flame ionization detector (FID) for detection and the remaining 99% were directed to the fraction collector. Five volatile compounds were collected from the methanol extract of Curcuma rhizome (5 g/mL) after 83 single injections (20 uL) with the yield of 5.1-46.2 mg. Furthermore, the structures of the obtained compounds were identified as β-elemene, curzerene, curzerenone, curcumenol, and curcumenone by MS and NMR spectra, respectively.

Abstract Image

Abstract Image

Abstract Image

莪术中挥发性成分的制备气相色谱分离。
建立了莪术甲醇提取物中挥发性成分的制备气相色谱分离方法。化合物在填充10% OV-101 (3 m × 6 mm, i.d)的不锈钢柱上分离,然后将流出物分成两个气流。1%的废水通过火焰电离检测器(FID)进行检测,其余99%被引导到馏分收集器。莪术根甲醇提取物(5 g/mL)经83次单次注射(20 uL),得到5种挥发性化合物,得率为5.1 ~ 46.2 mg。通过质谱和核磁共振鉴定,化合物的结构分别为β-榄香烯、莪术烯、莪术烯酮、姜黄烯醇和姜黄烯酮。
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