Abstract:本研究利用析因分析,探讨了从豆渣中制取大豆多糖的最适工艺条件,比较了大豆多糖在多种加工条件下的持水性变化,并应用于鱼圆加工,改善了鱼圆的保水性和质构。结果表明,在pH=9,温度30～50℃,处理时间20～30min,液固比4.5∶1时,可将豆渣中的蛋白质去除60%以上。食盐和蔗糖的存在,pH的变化和加热对多糖持水性的影响有限,该大豆多糖可用于多种食品。

Abstract:测定了原料绞股蓝和绞股蓝酒的总皂甙含量。绞股蓝总皂甙含量为6.67%,每100ml酒含绞股蓝总皂甙120mg,研究了绞股蓝总皂甙在酒中的浸出率与酒度和时间的关系。在酒度28°,38°和55°条件下分别进行试验,浸出率未见明显改变;绞股蓝在酒中浸泡15d,30d和45d时分别进行试验,浸出率也未见明显改变。同时测定了绞股蓝酒中的氨基酸和微量元素的含量,它含有18种氨基酸,其中包括人体必需的8种氨基酸,微量元素也很丰富,如Zn(0.4ppm),Mn(0.8ppm),Fe(0.02ppm),Se(0.007ppm)等。

Abstract:研究了以5-Br-DMPAP分光光度法测定食品中微量Cr,对实验条件及共存离子的干扰进行了探讨。在C_2H_5OH存在下,Cr(Ⅲ)和5-Br-DMPAP在pH4.5～5.5范围内形成有色络合物,ε=6.75×10~4L.mol~(-1).cm~(-1),Cr在0～12μg/25ml范围符合比耳定律,变异系数和回收率分别在2.6%～8.7%和90.2%～95.3%之间。

Abstract:The components of offodors were isolated from 20g silkworm powder by Simultaneous Distillation Extractor. The isolated volatile offodors compounds were concentrated by oldshow fractional column and K. D concentrator. 39 compounds were identified by GCMS a

Abstract:研究和讨论了一株短杆菌异淀粉酶的筛选,诱变,产酶条件及部分酶学特性。结果是摇瓶发酵液中酶活单位最高可达520u/ml.酶作用最适pH可低至5.0,最适温度可高至55℃。该酶对多种不同的含α-1,6-葡萄糖苷键的底物皆具有良好的水解作用。水解产物的分子量分布情况类似于假单胞菌异淀粉酶。

Abstract:Three preparations of lactase were obtained from the culture broth of As-pergillus niger CWL2NU-3. One of them was used for studying, the effects of pH, tempera-ture and carbohydrates on the activity and stabiiity. From the configuration and charge dis-tr

Abstract:The rheological characteristics of the effluent form starch factory during evaporation were studied and a suitable mathematical model was chosen. A treatment by pentosanase could reduce greatly the viscosity and make the evaporation more complete. A numbe

Abstract:Comparison mas made of electrode surface roughening in pulsating current and periodic reverse current electrodeposition. It was shown that less rough deposits were obtained in electrodeposition with a pulsating current.

Abstract:A method for estimation of fixed number of worker base on queuing theory was introduced, especially to solve the question of loom assignment of repairman in weavingshop for raising the economic efficiency of the factory.

Abstract:The forming principle of frustum cone-like cup (container) is studied. Discussion is focused on fundamental condition for forming-hugging cup bodies and seam-knurling cup bottom, and relationship and formula between various essential parameters of paper c

Abstract:A point-to-point transmission between IBM-PC and compatible computer was studied. By adding modem, the transmission distance was extended "to over several kilometers. The communication of Hierarchical computer system in factory could be carried out based

Abstract:The Purpose of this investigation was to theoretically and experimentally check the possibility of Combining two holographic gratings in a way that the spatial distribution of the input field is as same as in the fild of the output plane. The application