Evaluating the supercritical extraction effects on the chemical compositions of the extracted oil using GC/TOF MS

International Conference on Materials Engineering and Science

Ibrahim, Ahmad H.^1 ; Al-Rawi, Sawsan S.^1

Faculty of Sciences, University of Zakho, Kurdistan Region, Iraq^1

关键词: Chemical compositions;    Extraction conditions;    Nutmeg;    Supercritical;    Supercritical extraction;    Supercritical temperatures;    Time of flight;    Time of flight mass spectrometry;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/454/1/012166/pdf
DOI  :  10.1088/1757-899X/454/1/012166

来源: IOP

【 摘 要 】

Gas chromatography time of flight mass spectrometry (GCTOFMS) is becoming an attractive and alternative full-spectrum technique against others traditional instruments. In this study, the GCTOFMS was used to evaluate the effect of supercritical temperature and pressure on the chemical composition of the extraction yields. A total of 12 samples obtained from 3x4 general factorial design were analyzed for it chemical components using GCTOFMS. A list of compounds was identified and matched to the NIST library with a hit over 80 % on the basis of the specific mass determination of their molecular ions and their major fragments. All the overlaps peaks were separated. All the extracted oils possess similar chemical components but varied in each compound concentration. Moreover, the aromatic ethers group was identified as the main group in the supercritical extracts with the presence of Myristicin as the highest peak, whereas, in the soxhlet extraction this group concentration was found lower. This result reveals the great effect of the extraction condition and the used method on the chemical compositions of the extraction yield and the concentration of each compound. This finding indicates and confirms the potential use of supercritical extraction in producing richer extract and fractions.