动物毛发中的溶出物质及其性质

本文研究用还原法溶解毛发，回收具有再生成双硫键效力的可溶性蛋白质，建立一个衡量制革用动物毛发的标准。     

Melting Behavior of Gels Prepared from Isolated Subunits of Collagen

Acid-soluble collagen (ASC) was prepared from fresh pigskin corium, and denatured under mild conditions to obtain a mixture of parent gelatins. The mixture was precipitated with ammonium sulfate and preliminarily fractionated into four fractions by step-wise redissolution in ammonium sulfate solutions of decreasing concentration. From these fractions, substantially pure α1, α2, β₁₁, and β₁₂ peptide chains could be obtained by CM-cellulose ion-exchange chromatography. Differential scanning calorimetry (DSC) of the melting process of these peptide gels demonstrated that the thermal stability of α2-gel was very much lower than that of α1-gel.     

Renaturation of α1 Chains from Shark Skin Collagen Type 1

Renaturation of α1 chains from shark skin collagen (1) was measured by the increase in optical rotation and viscosity. The rotation change of the α1(1) chains became constant after 18 hr, while the viscosity increased further with time. Size exclusion chromatographic patterns of renaturation products of α1 (I) chain gave similar results to that of native collagen. The renaturation products remelted with rising temperature in a similar way to the melting of native collagen as judged from the rotation-temperature curve.     

Effects of Polymers on Secondary Nucleation of Ice Crystals

The kinetics of ice crystallization in various polymer solutions were studied by the thermal response method in a batch crystallizer. Polymers suppress the secondary nucleation of ice crystals, depending on the kinds of polymer and concentration. The decrease of the nucleation rate constant in polymer solutions was related to the increase of viscosity. The effects of polymers on the nucleation rate were also observed in solutions containing low molecular weight compounds.     

从白湿革削匀革屑中制取明胶

本文介绍从白湿革削匀革屑中制取明胶的研究情况，以确定酸浸条件与脱铝效果的关系，以及脱铝削匀革屑（ＤＡＳ）ＰＨ值对明胶浸出率的影响。     

鞋材料革的卫生研究

我们在鞋内卫生方面完成了系统研究，并注明了条件。本文中，我们报导了湿气的累积和微生物的生长取决于鞋的不同材料。我们得出结论，鞋的用料和结构对累积湿气和它对微生物环境的影响方面是最重要的卫生因素。