Investigation and isolation of a protein-vitamin concentrate from pine needles

Summary 1. The fractional and amino-acid compositions of needle proteins and of a protein-vitamin concentrate isolated from an extract have been determined.2. The optimum conditions of the protein-extracting process have been found. The dependence of the influence of various factors on the degree of extraction of the protein from the needles has been shown.3. The results obtained enable the protein-vitamin concentrate to be recommended as a valuable additive to fodder for agricultural animals.Siberian Technological Institute, Krasnoyarsk. Translated from Khimiya Prirodnykh Soedinenii, No. 4, pp. 517–522, July–August, 1976.