Preparation of Blood Glue from Porcine Plasma Protein and Cross-linking Reaction of Plasma Protein with Formaldehyde

  • Cho, Yongsik (Department of Food Science and Technology, College of Agriculture, Chungnam National University) ;
  • Lee, Hwahyoung (Department of Forest Products, College of Agriculture, Chungnam National University) ;
  • Song, Kyung Bin (Department of Food Science and Technology, College of Agriculture, Chungnam National University)
  • Received : 1999.04.27
  • Published : 1999.06.30

Abstract

Blood glue was prepared to reutilize porcine blood. Plasma proteins after lyophilization were treated by addition of wood flour, sodium hydroxide, sodium silicate, and hydrated lime to make blood glue with a suitable adhesivity. Characteristics of the prepared blood glue was monitored by measuring the viscosity with time, and the relationship between degree of hydrolysis of plasma proteins by addition of various amounts of sodium hydroxide and adhesivity was studied. To prevent the emission of formaldehyde during manufacturing of plywood by blood glue, the cross-linking reaction of plasma protein with formaldehyde was also examined. Fourier transform infrared, circular dichroism, and fluorescence spectroscopy study showed that blood plasma proteins react with formaldehyde, resulting in removal of formaldehyde by cross-linking reaction.

Keywords