Skip to main content
SpringerLink
Log in

Elucidation of the chemical structures of natural antioxidants isolated from rosemary

  • Technical
  • Published:
Journal of the American Oil Chemists’ Society

Abstract

A natural antioxidant extract with activity greater than BHA and equal to BHT was isolated from rosemary leaves. The extract was separated into 7 primary fractions with liquid chromatography, using silicic acid as an adsorbent followed by gradient elution. Each fraction was rechromatographed to yield a total of 16 subfractions. Two compounds, carnosol and ursolic acid, were identified by infrared, mass and nuclear magnetic resonance spectrometry. Carnosol was shown to be one of the active antioxidant components in rosemary. Ursolic acid was not an effective antioxidant. Further fractionation of the most active antioxidant subfractions by high performance liquid chromatography and the elucidation of the chemical structures of these fractions are now in progress.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  1. Formo, M.W., in Bailey’s Industrial Oil and Fat Products, Vol. 1, 4th edn., Wiley Interscience, New York, NY, 1979.

    Google Scholar 

  2. Waldrop, M., Chem. Eng. News (May 5, 1980), p. 22.

  3. Federal Regist. 42:27603 (1977).

  4. Rac, M., and B. Ostric-Matijasevic, Rev. Fr. Corps Gras 2:796 (1955).

    CAS  Google Scholar 

  5. Chang, S.S., B. Ostric-Matijasevic, O.A.-L. Hsieh and C.-L. Huang, J. Food Sci. 42:1102 (1977).

    Article  CAS  Google Scholar 

  6. Bracco, U., J. Löliger and J.L. Viret, JAOCS 58:686 (1981).

    CAS  Google Scholar 

  7. Sahasrabudhe, M.R., and D.G. Chapman, JAOCS 38:88 (1961).

    CAS  Google Scholar 

  8. Official and Tentative Methods of the American Oil Chemists’ Society, Vol. II, 3rd edn., American Oil Chemists’ Society, Champaign, IL, 1973.

  9. White, A.I., and G.L. Jenkins, J. Am. Pharm. Assoc. 31:37 (1942).

    CAS  Google Scholar 

  10. Brieskorn, C.H., and A. Fuch, Chem. Ber. 95:3034 (1962).

    CAS  Google Scholar 

Download references

Author information

Author notes

  1. James W. Wu

    Present address: Mrs. Paul’s Kitchens., Inc., 19128, Philadelphia, PA

  2. Min-Hsiung Lee

    Present address: Department of Agricultural Chemistry, National Taiwan University, Taipei, Taiwan, Republic of China

Authors and Affiliations

  1. Department of Food Science, Cook College, Rutgers, The State University, 08903, New Brunswick, NJ

    James W. Wu, Min-Hsiung Lee, Chi-Tang Ho & Stephen S. Chang

Authors
  1. James W. Wu
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Min-Hsiung Lee
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. Chi-Tang Ho
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. Stephen S. Chang
    View author publications

    You can also search for this author in PubMed Google Scholar

Additional information

Paper of the Journal Series, New Jersey Agricultural Experiment Station, Cook College, Rutgers, The State University of New Jersey, New Brunswick, NJ 08903.

About this article

Cite this article

Wu, J.W., Lee, MH., Ho, CT. et al. Elucidation of the chemical structures of natural antioxidants isolated from rosemary. J Am Oil Chem Soc 59, 339–345 (1982). https://doi.org/10.1007/BF02541016

Download citation

  • Received:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF02541016

Keywords

Search

Navigation