Traditional formaldehyde-based adhesives rely excessively on petrochemical resources,release toxic gases,and pollute the environment.Plant-derived soybean protein adhesives are eco-friendly materials that have the pot...Traditional formaldehyde-based adhesives rely excessively on petrochemical resources,release toxic gases,and pollute the environment.Plant-derived soybean protein adhesives are eco-friendly materials that have the potential to replace the formaldehyde-based adhesives used to fabricate wood-based panels.However,the poor water resistance,high brittleness,and poor mildew resistance of soybean protein adhesives limit their industrial applications.This article reviews recent research progress in the modification of soybean protein adhesives for improving the bonding performance of adhesives used for wood-based panel fabrication.Modification methods were summarized in terms of water resistance,solid content,and mildew resistance.The modification mechanisms and remaining problems were also discussed.Finally,the current industrial applications and the future research direction of soybean protein adhesives are discussed.展开更多
通过将金针菇多糖(Flammulina velutipes polysaccharide,FVP)添加到大豆分离蛋白(soy protein isolate,SPI)水凝胶中并进行热处理以提高SPI水凝胶强度、持水性和热稳定性。通过对二三级结构及分子间作用力的检测,进一步分析FVP-SPI水...通过将金针菇多糖(Flammulina velutipes polysaccharide,FVP)添加到大豆分离蛋白(soy protein isolate,SPI)水凝胶中并进行热处理以提高SPI水凝胶强度、持水性和热稳定性。通过对二三级结构及分子间作用力的检测,进一步分析FVP-SPI水凝胶的稳定性。结果显示:热处理及添加FVP显著提高SPI水凝胶的持水能力,热变性焓ΔH提高了25.46%,水凝胶稳定性显著提高。疏水相互作用、二硫键和静电相互作用是形成热处理FVP-SPI水凝胶的主要作用力。FVP的加入提高了静电相互作用,使水凝胶中α-螺旋向β-折叠转变,SPI中色氨酸暴露于表面,疏水性增强。FVP对SPI水凝胶的增强作用为SPI水凝胶的开发应用提供一定参考。展开更多
基金the National Natural Science Foundation of China(31722011)Beijing Forestry University Outstanding Young Talent Cultivation Project(2019JQ03004)the Agricultural Science and Technology Fund Project of Shandong Province(Forestry Science and Technology Innovation)(2019LY008).
文摘Traditional formaldehyde-based adhesives rely excessively on petrochemical resources,release toxic gases,and pollute the environment.Plant-derived soybean protein adhesives are eco-friendly materials that have the potential to replace the formaldehyde-based adhesives used to fabricate wood-based panels.However,the poor water resistance,high brittleness,and poor mildew resistance of soybean protein adhesives limit their industrial applications.This article reviews recent research progress in the modification of soybean protein adhesives for improving the bonding performance of adhesives used for wood-based panel fabrication.Modification methods were summarized in terms of water resistance,solid content,and mildew resistance.The modification mechanisms and remaining problems were also discussed.Finally,the current industrial applications and the future research direction of soybean protein adhesives are discussed.
文摘通过将金针菇多糖(Flammulina velutipes polysaccharide,FVP)添加到大豆分离蛋白(soy protein isolate,SPI)水凝胶中并进行热处理以提高SPI水凝胶强度、持水性和热稳定性。通过对二三级结构及分子间作用力的检测,进一步分析FVP-SPI水凝胶的稳定性。结果显示:热处理及添加FVP显著提高SPI水凝胶的持水能力,热变性焓ΔH提高了25.46%,水凝胶稳定性显著提高。疏水相互作用、二硫键和静电相互作用是形成热处理FVP-SPI水凝胶的主要作用力。FVP的加入提高了静电相互作用,使水凝胶中α-螺旋向β-折叠转变,SPI中色氨酸暴露于表面,疏水性增强。FVP对SPI水凝胶的增强作用为SPI水凝胶的开发应用提供一定参考。