Potential Use of Rum Distillery Slops as Animal Feed Supplement II. Nitrogen Content of Mycelial Growth in Slops

Abstract

Rum distillery slops proved to be a valuable medium for the growth of molds rich in mycelial protein. High reductions of BOD and total sugar content of the medium were obtained. The nitrogen content of recovered slops decreased as mycelial yield increased, indicating that the mold utilizes nitrogen for its growth. Increases in the pH of the slops were observed in all growth experiments conducted. Two mold strains compared favorably with the control mold strain in comparative mold screening tests among 12 strains investigated. Variations in protein content of mycelia were observed among the different strains studied. BOD reductions of slops were found proportional to mycelial yields, 30-53% after eight days' growth with the best strains tested.