Steenbock, Harry

Cleland WW, Northrop DB, O Leary MH. Isotope effects on enzyme-catalyzed reactions [Proceedings of the Sixth Annual Harry Steenbock Symposium, held in Madison, Wisconsin, on June 4 and 5,1976]. Baltimore University Park Press 1977. 

Patenting university research Harry Steenbock and the Wisconsin Alumni Research Foundation, Isis 80 (1989) ... 

Altona, C., Proceedings of the Fourth Annual Harry Steenbock Symposium, Madison, NI, M. Sundaralingam and S. T. Rao, ed.. University Park Press, 1975, p. 613. 

Formation of vitamin D in plant foods. If ergosterol (the provitamin found in plants) is irradiated with ultraviolet light, vitamin Dj is produced. This is the well-known Steenbock Irradiation Process, which was patented by Dr. Harry Steenbock of the University of Wisconsin. 

In 1924, the mystery of how sunlight could prevent rickets was partially solved. Dr. Harry Steenbock of the University of Wisconsin and Dr. A. Hess of Columbia University, working independently, showed that the antirachitic activity could be produced in foods and in animals by ultraviolet light. The process, known as the Steenbock Irradiation Process was patented by Steenbock, with the royalties assigned to the Wisconsin Alumni Research Foundation of the University of Wisconsin. Subsequent research disclosed that it was certain sterols in foods and animal tissues that acquired antirachitic activity upon being irradiated. Before irradiation, the sterols were not protective against rickets. 

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