Abstract:通过对假单胞菌（Ｐｓｅｕｄｏｍｏｎａｓｓｐ．）ＪＷ１２发酵液脂肪酶稳定性的研究，表明了发酵液脂肪的稳定性主要受蛋白酶的影响。当用吐温８０作为碳源时，通过对发酵培养基组成的调整，达到降低蛋白酶的目的，提高发酵液脂肪酶酶活。

Abstract:对４种布隆迪产木薯（ＲＵＭＯＮＧＥ，ＲＩＺＩＭＥＴＩ，ＭＰＥＭＢＵＲＩＲＡ，ＩＮＡＫＩ－ＲＡＲＡ）块根茎的组成进行了分析。结果表明：它们之间主要组分的差异不大，淀粉含量都高，且都含有生氰毒物（以氢氰酸含量计为１００～１４０ｍｇ／ｋｇ）。通过实验，研究出了发酵法制备木薯酸性淀粉的工艺，并对发酵过程中淀粉的乳酸含量、ｐＨ值及淀粉与制备环境的温度差的变化等因素进行了探讨。结果表明：发酵时间以２８ｄ为宜；此时基本脱掉了木薯中的毒物，并使淀粉中的乳酸质量分数从０．１％逐渐增加到０．５６％（增加了５．６倍），ｐＨ值从７．５降低到３．５０，而且淀粉的卫生指标、粘弹性及焙烤面包的性能均良好。

Abstract:报道了甲壳低聚糖对食品中一些常见的细菌、霉菌、酵母菌的抗菌作用，其抑菌率明显超过对照组，相应最小抑菌质量浓度为１～１０ｇ／Ｌ，随着甲壳低聚糖质量浓度增加，抑菌作用逐渐变强。并探讨了甲壳低聚糖抗菌活性与结构之间的关系，结果表明甲壳低聚糖的抗菌活性与氨基含量和氨基质子化以及相对分子质量大小有关。此外，当甲壳低聚糖作为防腐剂应用于苹果原汁保藏时，在果汁中含４ｇ／Ｌ甲壳低聚糖可使果汁的保藏期由对照实验中３７℃时９ｄ增加到７０ｄ，显示了很好的防腐效果。

Abstract:在选用８种具有两亲性质的表面活性剂、２种胆汁盐和１２种金属盐，对庚烷中催化己酸乙酯合成的固定化米氏毛霉脂肪酶进行非共价修饰时发现：在一定的质量浓度范围内，阴、阳离子型和非离子型的表面活性剂对脂肪酶酶促催化活性有不同程度的促进；在底物浓度从０．２５ｍｏｌ／Ｌ提高至０．５ｍｏｌ／Ｌ时，气溶胶硫代琥珀酸２［２－乙己酸］酯钠盐、十二烷基磺酸钠和ＴｒｉｔｏｎＸ－１００对于脂肪酶保持稳定的催化活性有较大的提高作用。并从酶的活性中心和表面活性剂的结构和特性上对原因进行了分析。而胆汁盐和金属盐对脂肪酶的修饰作用不大，在高浓度时反而会抑制酶的活性。

Abstract:基于影响搅拌式生物反应器的非生物参数、生物参数及流变学特性的分析研究，开发了高效轴向流搅拌器。在井岗霉素工业发酵中应用的初步结果表明：在使用原菌种及发酵工艺的基础上，保持原有效价不变，功耗下降１３％～１８％．

Abstract:报导了从水溶液中结晶α结晶麦芽糖的新工艺并对其功能性质进行了研究，结果表明，α结晶麦芽糖与β结晶麦芽糖相比，具有熔点高（３０℃以上），在水中的溶解度和乳化能力分别为β结晶麦芽糖的３倍以上和２倍。α结晶麦芽糖还具有较高的醇水溶性，此外对β结晶麦芽糖的纯度与形成α结晶麦芽糖的关系也进行了探讨。

Abstract:Decorticated sorghum and millet flours were used for substitution of bread making flour with different percentages. Fenugreek gum was added to the whole wheat flour as well as partially substituted wheat flour up to 0.9 %. The effects of fenugreek gum on

Abstract:The absorption and desorption of eighteen kinds of active carbon have been inversitigated. High Fischer ratio oligo peptide mixture was preparated with active carbon chromatographic methods. The amino acid composition and molecular weight distribution ha

Abstract:A brewing yeast strain was used as the original strain. A mutant strain M 4 with excellent anti staling ability was achieved after UV mutation and continuous domestication of methionine. Compared with the original strain, the content of carbonyl compoun

Abstract:通过对几种不同的木聚糖提取方法的比较，确立了酸预处理后加水蒸煮的方法提取低聚木糖生产用木聚糖的工艺路线。首先将玉米芯用质量浓度为１ｇ／Ｌ的Ｈ２ＳＯ４在６０℃下浸泡１２ｈ，滤去浸泡液，然后加水至固液比为１∶１０，在１５０℃蒸煮３０ｍｉｎ．采用此工艺木聚糖的提取得率可达到１７％（按玉米芯计），提取液的还原糖与总糖质量之比小于３３％．该法得到的提取液（和渣一起）用自制的木聚糖酶水解，可获得ｍ（木糖）∶ｍ（木二糖）∶ｍ（木三糖）＝１∶５∶２．７的高纯度低聚木糖产品，产品总糖的得率达到２６．４％（按玉米芯计）。

Abstract:试验用４～１５日龄艾维茵母系公鸡分为３组，饲喂按理想氨基酸模式配制成含不同蛋清蛋白与游离氨基酸比例的饲粮（蛋清蛋白氨基酸占８８．６％、４４．３％、０％），研究饲粮完整蛋白质比例对肉雏鸡整体、组织蛋白质周转代谢的影响。结果表明：饲喂游离氨基酸饲粮的第３组鸡整体、胸肌蛋白质生长率（ＦＧＲ）显著（Ｐ＜０．０５）低于第１、２组；其中，蛋白质合成率（ＦＳＲ）以第２组最高，２、３组极显著高于（Ｐ＜０．０１）第１组；降解率（ＦＤＲ）第１组显著（Ｐ＜０．０５～０．０１）低于第２和第３组。整体和胸肌ＦＧＲ的提高，主要是由于蛋白质降解率的相对降低。肝脏蛋白质ＦＧＲ３组间差异不显著（Ｐ＞０．０５），依次为３组＞１组＞２组。血浆寡肽量与整体和组织蛋白质ＦＳＲ、ＦＤＲ、ＦＧＲ间存在显著（Ｐ＜０．０５）的相关关系。结果表明，饲粮完整蛋白质比例影响肉仔鸡血液循环中的某些寡肽和整体与组织的蛋白质周转代谢。

Abstract:These is a great practical potential in producing riboflavin granule feed additive containing ca. 10% VB 2 from riboflavin fermentation broth directly. By testing of gravity settling,filtering and centrifugal separation,it was found that centrifuging wa

Abstract:In this paper, we studied hydrolysis of p nitrophenyl esters of carbobenzoxy phenyl by decanyl L histidine catalyst. The charge distribution of the substrate and catalyst was calculated by using INDO program. After analyzing these data, the reactive c

Abstract:The characteristics of hydrogen evolution of the Ni Co Mo cladding which was produced under designed technology conditions have been studied in laboratory. The factors affecting the formation of the cladding was investigated and the experimental result

Abstract:对有机硒和无机硒的测定进行了探讨，利用压榨提取无机硒，用荧光二阶导数法进行硒的定量测定，通过标准添加法对提取率进行了测定，回收率为９３．２％～９８．４％，变异系数为１．８６．

Abstract:研究了钨合金中钍的直接测定方法。在１．０ｍｏｌ／Ｌ硝酸和０．０８ｍｏｌ／Ｌ柠檬酸介质中，钍与３－［（２－羟基－３－羧基－５－磺基苯基）偶氮］－６－［（２－胂酸基苯基）偶氮］－４，５二羟基－２，７－萘二磺酸（ＡＳＡ－ＨＫＳ）发生灵敏的显色反应。钍与试剂形成１２绿色配合物，最大吸收波长为６７５ｎｍ，表观摩尔吸光系数为８．５４×１０４Ｌ／（ｍｏｌｃｍ）。钍含量在０～１．２ｍｇ／Ｌ范围内符合比耳定律。该方法的选择性是目前测定钍方法中较理想的，结果令人满意。

Abstract:The mechanical model of the U type Corolis mass flowmeter was designed,and the method to calculate its Sensitive Character was studied.The effect of restraint condition was also discussed.The results obtained here have been verified by the finite elemen

Abstract:By means of the orthogonal transform and its fast algorithm, the generalized discrete convolution method is presented in this paper under the condition of minimal Frobenius norm of the iterative operator. By using fast Hadamard transform, the binary convo

Abstract:A novel approach to estimate induction motor speed is presented in this paper. According to the reduced order model of induction motor, a model reference adaptive speed identification algorithm is obtained from measured motor stator voltages and currents

Abstract:A mathematical model of the fabrics knitted on double needle bar warp knitting machine was designed theoretically in the paper. Using the model, computer can directly accept the information of the structure knitted by double needle bar warp machine which

Abstract:The principle of the operation of sizing is described in this paper. The experimental results show that a significant improvement on the quality of operation could be achieved by mechanical treatment in the process of immerse sizing.

Abstract:分别在ｆ′′＋（ａ）≠０，ｆ′′＋（ａ）＝０，ｆ′′′＋（ａ）＝∞的情况下，研究了二阶Ｌａｇｒａｎｇｅ中值定理的中值的变化趋势