月桂醛和琥珀酸酐接枝改性天然胶原所得产物的表面活性

Surface Activity of the Product from Native Collagen Graft Modified by Lauric Aldehyde and Succinic Anhydride

摘要:

以月桂醛与琥珀酸酐接枝改性具有三股螺旋结构的天然胶原，得到了一种保留了天然胶原结构的生物表面活性剂（简称BCB）。本文研究了BCB的基本表面活性性能，结果表明：BCB和天然胶原的乳液类型都为o/w型。BCB较天然胶原拥有更好的泡沫膨胀和泡沫稳定性、乳化活性和乳化稳定性、吸油能力，但吸水能力降低。此外，BCB的表面张力随着存放时间的增加而降低，润湿能力随着其浓度的增加而提高。

Abstract:

The native collagen with triple helix structure was modified by lauric aldehyde and succinic anhydride, and the biosurfactant retaining native collagen structure was prepared (BCB). The basic surface activity of BCB was investigated and the results showed that the emulsion types of BCB and native collagen were o / w. Compared with native collagen, BCB exhibited better surface activity such as the foam expansion, foam stability, oil absorption capacity, emulsion activity and emulsion stability, but presented lower water absorption capacity. Moreover, the surface tension of BCB decreased with the increased storage time. The wetting power increased with increasing the concentration of BCB.