Skip to main content

The Adsorption of β-Carotene I. by bleaching earths

Abstract

Activities of various bleaching earths for removal of β-carotene from acetone solution were found to be in the decreasing order tonsil, fuller’s earth, silica, and kaolin. Experimental evidence indicated that except for silica, in addition to physical adsorption, processes involving chemisorption and subsequent chemical reaction proceeded on the surface of the clay minerals. An Arrhenius activation energy of the order of 10 kcal mol−1 was found for the adsorption of β-carotene from a solution in acetone on tonsil. Metallic ions, such as Fe3+ , are suggested to be the active sites for chemisorption and reaction. Oxygen was not essential for activity.

This is a preview of subscription content, access via your institution.

References

  1. Doak T.E., JAOCS 55:599A (1978).

    Google Scholar 

  2. Clegg A.J., Ibid. 50:321 (1973).

    Article  CAS  Google Scholar 

  3. Meller M.T., and M. Servant, Oleagineux, 9:873 (1954).

    Google Scholar 

  4. Rich A.D., JAOCS 44:298A (1967).

    Article  Google Scholar 

  5. Rich A.D., Ibid. 47:564A (1970).

    Article  CAS  Google Scholar 

  6. Kobayashi, K., K. Yamamolo, and J. Abe, Chem. Soc. Chem. Ind. Jpn. 35 Supplement Binding 35 (1932).

  7. Jonas, R., (Unilver Ltd). Brit. Pat. 691,924, 1953; Velan, M., Fr. Patent 1,162,458, 1958.

  8. Lippens, B.C., “Physical and Chemical Aspects of Adsorbents and Catalysis,” Edited by B.G. Linsen, Academic Press, 1970, p. 172.

  9. RamakrishnanT.V., Diss. Abstr. B. 34:3840 (1974).

    Google Scholar 

  10. Hunter, R.F., and R.M. Krakenberger, J. Chem. Soc. 1 (1947).

  11. Bruggemann J., W. Krauss, and J. Tiews, Naturwissenschaften 38:562 (1951).

    Google Scholar 

  12. Savinov B.G., and A.A. Svishehuk, Ukr. Khim. Zhr. 16:57 (1950).

    CAS  Google Scholar 

  13. Argoud M.S., Oleagineux 9:717 (1954). [Received January 17, 1979]

    CAS  Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

About this article

Cite this article

Khoo, L.E., Morsingh, F. & Liew, K.Y. The Adsorption of β-Carotene I. by bleaching earths. J Am Oil Chem Soc 56, 672–675 (1979). https://doi.org/10.1007/BF02660071

Download citation

  • Received:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF02660071

Keywords