Abstract
Many of the physiological effects of coffee beverages are due to their caffeine content. The two major species of coffee, arabica and robusta, contain approximately I and 2% caffeine respectively. This corresponds to a cup of regular coffee containing on the average 85 mg of caffeine with a range of 50 to 150 mg based on preparation, blend and cup size.1 A cup of instant coffee contains approximately half that of regular coffee with a reported range of 40 to 110 mg. To minimise the physiological effects and still obtain the desirable attributes of a coffee beverage, many procedures for caffeine removal have been proposed.
Keywords
Supercritical Carbon Dioxide Coffee Bean Green Bean Green Coffee Instant Coffee
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References
- 1.Sivetz, M. and Foote, H. E., Coffee Processing Technology, AVI, Westport, Conn., 1963.Google Scholar
- 2.Meyer, J. F., Roselius, L. and Wimmer, K. H., US Patent No. 897,763, 1 September, 1908.Google Scholar
- 3.Roselius, W., Vitzthum, 0. and Hubert, P., Method for the production of caffeine free coffee extract, US Patent No. 3,843,824, 22 October, 1974.Google Scholar
- 4.Adler, I. L. and Earle, E. L., Process for preparing a decaffeinated soluble coffee extract, US Patent No. 2,933,395, 19 April, 1960.Google Scholar
- 5.National Coffee Association, Newsletter No. 1862, 4 October, 1982.Google Scholar
- 6.Patel, J. M., Wolfson, A. B. and Lawrence, B., Decaffeination process, US Patent No. 3,700,464, 24 October, 1972.Google Scholar
- 7.Mitchell, W. A. and Klose, R., Green coffee decaffeination using edible ester solutions, US Patent No. 3,682,648, 8 August, 1972.Google Scholar
- 8.Zosel, K., Process for recovering caffeine, US Patent No. 3,806,619, 23 April, 1974.Google Scholar
- 9.Bichsel, B., Fd Chem., 1979, 4, 53–62.CrossRefGoogle Scholar
- 10.Norman, I. and Viani, R., J. Fd Sci., 1972, 37, 925–7.CrossRefGoogle Scholar
- 11.Katz, S. N., Aprotic solvent decaffeination, US Patent No. 4,472,443, 18 September, 1984.Google Scholar
- 12.Patel, J. M. and Wolfson, A. B., Semi-continuous countercurrent decaffeina¬tion process, US Patent No. 3,671,263, 20 June, 1972.Google Scholar
- 13.Berry, N. E. and Waiters, R. H., Process of decaffeinating coffee, US Patent No. 2,309,092, 26 January, 1943.Google Scholar
- 14.Notting, L. and Chong, G. S., Continuous process for producing decaffeinated beverage extract, US Patent No. 3,361,571, 2 January, 1968.Google Scholar
- 15.Prasad, R., Gottesman, M. and Scarella, R. A., Decaffeination of aqueous roasted coffee extract, US Patent No. 4,341,804, 27 July, 1982.Google Scholar
- 16.Pagliaro, F. A., Franklin, J. G. and Gasser, R. J., Process for the production of a decaffeinated vegetable material and product obtained, Belgium Patent Application No. 835556, 13 May, 1976.Google Scholar
- 17.Morrison, L. R. Jr, Elder, M. N. and Phillips, J. H, Recovery of noncaffeine solubles in an extract decaffeination process, US Patent No. 4,409,253, It October, 1983.Google Scholar
- 18.Katz, S. N. and Proscia, G. E., Process for recovering caffeine from activated carbon, US Patent No. 4,513,136, 23 April, 1985.Google Scholar
- 19.Hirsbrunner, P. and Pavillard, B., Purification of caffeine, US Patent No. 4,531,003, 23 July, 1985.Google Scholar
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