Abstract:采用一套有效容积为3．2L的UASB反应器，接种普通城市污水处理厂污泥浓缩池污泥，以自配合NH4^＋N和NO2^-N的废水为进水，对ANAMMOX反应过程的启动和运行特征进行了研究．结果表明：进水溶解氧质量浓度为2．7～3．2mg／L，反应器的启动经历了污泥适应期、ANA-MMOX活性表现期及ANAMMOX活性提高期3个阶段，在反应器运行的第119天，NH4^＋N和NO2^-N的去除率分别为96．6％，75．4％，成功启动了厌氧氨氧化过程．在将NH^＋-N浓度从50mg／L提高到70mg／L，使进水中NH4^＋N比NO2^-N为1：1．32时，NH4^＋N、NO2^--N、TN的去除率分别达到了99．9％，99．9％和91．2％．ANAMMOX反应过程中，去除的NH4^＋-N、NO2^--N和生成的NO3^--N的比例表现为1：1．54：0．30．pH出水高于进水，稳定在8．4左右．碱度进、出水变化不大．获得的具有厌氧氨氧化活性的污泥为褐色，并在反应器的下部形成了褐色颗粒污泥．运行表明，容积负荷、反应区温度对ANAMMOX反应的稳定运行产生明显影响．

Abstract:With the method of enrichment culture,a high efficient naphthalene-degrading strain,ND24,was isolated from petroleum wastewater. The strain was capable of utilizing naphthalene as a sole carbon source for growth and degrading naphthalene upto 98.4% of exi

Abstract:This paper mainly the studied effects of different HLB values of emulsifiers on partial coalescence. The study showed that emulsifier of high HLB value could induce partial coalescence more effectively than that of low HLB value in promoting partial coale

Abstract:Experiments were conducted to evaluate effects of cysteamine supplement on growth and safety of rats.Rats were ventral injected cysteamine of 0,20,35 and 50 mg/kg body weight,respectively,and rats were fed cysteamine of 0,15,30 and 60 mg/kg feed respectiv

Abstract:采用动态流变仪研究了AIcalase碱性蛋白酶在酶凝大豆蛋白7S，11S组分和不同配比的7S和11S组分的混合物的过程中温度、酶的添加量对体系流变性质的影响．结果表明：7S和11S的酶凝反应均受温度和加酶量的综合影响，低温均有利于两者的凝胶：20～40℃下都能得到较高的凝胶强度；在各个温度下两者也都有一个最适的酶添加量．两者相比较：温度对11S的影响更为明显，相同条件下11S所形成的凝胶强度要比7S大．11S是使大豆蛋白胶凝的主要组分，7S是影响胶凝的重要组分。

Abstract:以过硫酸铵为引发剂，研究了酸解氧化淀粉与醋酸乙烯酯的接枝共聚反应．探讨了淀粉与单体比例对接枝共聚反应的影响；选择接枝反应温度、PH值为自变量，应用中心组合设计，考察淀粉接枝反应过程中接枝百分率、接枝效率和单体转化率的变化，采用多元二次回归和响应面分析等手段，对接枝反应进行优化．研究发现，酸解氧化淀粉与醋酸乙烯酯接枝共聚反应的最佳条件为单体与淀粉质量比为80：100、接枝反应温度为70℃左右、PH值为4左右，对应接枝百分率为28．2％，接枝效率为49．1％，单体转化率为99．8％．

Abstract:采用缓冲液浸提、硫酸铵盐析、Phenyl—Sepharose CL-4B疏水层析和Sephadex G-75凝胶过滤层析等分离纯化手段，从宇佐美曲霉E001固态发酵曲中分离出木聚糖酶组分，再经DEAE-Sepharose fast flow阴离子交换层析进一步纯化，获得了两种电泳纯木聚糖酶XynⅠ和XynⅡ．分别采用SDS-PAGEG-75凝胶过滤层析测得XynⅠ、XynⅡ相对分子质量，两种酶均为单体蛋白质；等电聚焦电泳测得两种酶的等电点（pI）；测定了XynⅠ、XynⅡ的酶动力学常数；序列测定XynⅡN末端15个氨基酸残基的．

Abstract:研究了玉米蛋白粉中玉米黄素的抗肿瘤活性。采用体外培养的人癌细胞株——人口腔鳞癌KB细胞作为对象，观察玉米黄素对抑瘤活性、细胞周期的影响，发现玉米黄素对KB细胞24h的半数抑制浓度IC50为35μmol／L，在20μmol／L时即明显抑制KB细胞的对数生长；细胞周期分析显示时相左移，G1期细胞百分率增多，S期、G2＋M期百分率降低．DNA凝胶电泳显示30μmool／L玉米黄素作用72h能使KB细胞的DNA发生明显的降解．因此从玉米蛋白粉中提取的玉米黄素能明显抑制KB细胞生长，其抗肿瘤活性强，对细胞周期的影响提示G0期阻滞．

Abstract:The preparation of diagnostic Lactate Dehydrogenase with high purity from a strain of Lactobacillus plantarum was designed. LDH was prepared by DEAE Sepharose F. F. ion exchange chromatography, Phenyl Sepharose 6 F. F. hydrophobic chromatography, and Seph

Abstract:对Alkalibacteriumsp.F26发酵产碱性果胶酶的培养基和培养条件进行了优化.考察了碳源、氮源、无机盐、表面活性剂及起始pH、发酵时间、温度等发酵条件的影响.经单因素和响应面分析试验得到适宜的发酵培养基为(组分g/dL):葡萄糖0.95,蛋白胨1,NaCl 6.3,MgSO4.7H2O0.02,K2HPO4.3H2O 0.1,NaCO31,吐温-80 1;培养条件为:250 mL三角瓶装液量25 mL,35℃,起始pH值11.25,培养24 h.在此优化条件下培养,酶活达1 015 U/mL.

Abstract:Vacuum frying is a common used method to produce high quality vegetable or fruit chips.The effect of frying temperature and vacuum degree on moisture content,oil content,color and texture of fried carrot chips were investigated in this study.During the va

Abstract:To investigate the effects of 5 kinds of mixtures of oligopeptides from enzymic hydrolysates of egg white(MOEE) on immune functions of mice in vitro.Neutral red and MTT were used to observe the effects of different MOEE and different concentration of the

Abstract:MTT assay was used to study the effects of a glycoprotein MTS03 from Tricholoma matsutake combined with 5-Fu on human liver cancer Bel-7402 cells and the cytotoxicity of the drugs against human liver L-02 cells. The preliminary mechanism of MTS03 on cance

Abstract:In this paper,the carbohydrate change at different pcsitions of fresh maize ears during the milk stage was studied.The results showed that the changing curve of the total soluble candy(TSC) content of kernel was a form of parabola and the changing pattern

Abstract:从13株米曲霉菌株中筛选到一株产氨基酰化酶活力较高的米曲霉（Aspergillus oryzae）W0607，以米曲霉w0607为生产菌固态发酵生产氨基酰化酶，较适的培养基组成和培养条件为；麸皮7．0g，豆饼粉3．0g，蛋白胨0．3g，水11mL，PH值6．5，发酵温度28℃，发酵周期约48h．在此条件下，米曲霉W0607的氨基酰化酶产率为400u／g左右．

Abstract:在定向筛选α-糖苷酶抑制剂的实验中，从游动放线菌E-3519发酵液中分离到化合物SH-9766，其对α-淀粉酶和蔗糖酶有强烈的抑制作用．通过理化性质、质谱、红外和核磁共振等图谱数据的分析，证明与阿卡波糖同质．

Abstract:苦荞麦中蛋白质的生物价非常高，具有降低胆固醇、预防胆固醇沉积、抑制体内胆结石形成等多种生理功能．作者从抗疲劳、提高运动能力作用方面研究苦荞麦蛋白质的生理活性．实验中将小鼠随机分组，连续灌胃4周，检测小鼠的附重游泳、爬杆时间等生化指标．试验结果表明：苦荞麦球蛋白质可以显著的提高小鼠的附重游泳时间、爬杆时间和肝糖原的含量，有效的降低血乳酸和血清尿素的含量．球蛋白质具有抗疲劳作用，主要原因是其氨基酸组成中F因子低，可以抑制5-羟色胺的形成，对神经中枢系统（CNS）的抑制作用降低，使活动能力增强和耐力时间延长．

Abstract:Peanut skin is a by-product of the peanut industry with low economic value despite of its high content of antioxidants such as phenol.The scavenging activity of peanut skin on superoxide anion and hydroxyl free radicals,and inhibitory ability of lipid per

Abstract:建立了以纸层析法定量检测麦芽糖基β–环状糊精含量的方法.通过实验确定了适宜的展开剂,组成为V(正丙醇)V(正丁醇)V(水)=534;适宜洗脱剂为0.1 mol/L的盐酸溶液. 洗脱时间为14 h.回收实验表明当点样量在150～250 μg时测定结果准确可靠.重复性实验的变异系数为3.58%.纸层析法与HPLC法相比较,测定结果的相对误差为-3.99%.实验证明,纸层析法可作为测定麦芽糖基β–环状糊精的常规方法.

Abstract:采用糖苷酶催化合成了一种新型的黄酮葡萄糖苷化舍物，并对158例糖尿病患者进行了为期9个月的口服治疗．疗效实验结果表明：黄酮葡萄糖苷治疗组可使糖尿病患者的血糖代谢基本回归到正常水平．

Abstract:Pectin encompass a group of acidic heteropolysaccharides with three structural domains: homogalacturonan(HGA),rhamnogalacturonanI(RG-I) and rhamnogalacturonan II(RG-II),covalently linked to one another.The pectolytic enzymes are of great variety,the defin

Abstract:Milk proteins have many attrative nutritional, physico-chemical, functional, technological, physiological and even nutraceutical properties. They are used in many different food products, ranging from dairy products to beverages, dietary and medical produ

Abstract:The food safety is a social hotspot social currently. One important subject of the article is to study the way of monitoring and inspecting food safety.Application of photobacteria to monitor food contamination is summarized in this article.The study on m