蜜环菌发酵保健饮料的研制

蜜环菌(Armillaria mellea Quel)是同兰科天麻互为寄生的食药兼用真菌，本项目对蜜环菌发酵保健饮料研制工艺进行了研究。结果表明，采用最佳工艺条件，发酵液中多糖含量高，添加6％复合甜味剂、0．1％L-乳酸及0．05％海藻酸钠等配制成饮料，可得多糖含量为0．3mg／mL，氨基酸为1．5g／L，蛋白质44mg／mL，色香味俱全的营养保键饮料。     

重组大肠杆菌产β-胡萝卜素的发酵条件

对重组大肠杆菌产β-胡萝卜素发酵条件进行了研究．在M9培养基中添加Span-200．7g／L有利于细胞生长和β-胡萝卜素表达，初始pH值6．0、接种体积分数5％、发酵温度28℃、抗生素氨苄青霉素质量浓度80μg／mL和氯霉素质量浓度40μg／mL为最佳发酵条件，在7L发酵罐进行发酵动力学试验表明，重组菌最适发酵周期为22h，细胞干重最高可达1．55g／L，β-胡萝卜素表达量可达0．75μg／mL。     

一株高产胞外多糖米酒乳杆菌的诱变筛选

通过对一株高产胞外多糖的米酒乳杆菌BXR-5—3在不同紫外线照射距离和时间、不同浓度亚硝基胍以及紫外线、亚硝基胍复合诱变等条件下分别诱变筛选和多糖含量测定,获得的胞外多糖产量最高诱变菌株的条件为紫外线照射距离为20cm,亚硝基胍的浓度为300μg／mL,处理时间为20min,其多糖的产量为339．0mg／L。     

高蛋白大米粉中磷含量测定

采用GB5413．112010中钒钼酸铵显色法测定高蛋白大米粉中的磷，方法显色效果明显，线性好，灵敏度高。在波长为440nm条件下，分光度与磷浓度在110μg／mL范围内呈线性关系，检出限为0．223μg／mL，测定高蛋白大米粉中磷的计算标准偏差为0．744，相对偏差为0．67％，总回收率为95．2％。     

火焰原子吸收光谱法连续测定黄酒中的金属离子

用微波消化罐消化样品，以火焰原子吸收光谱法在同一系列体系中测定黄酒中微量铜、锌、铁、锰的方法。考察了硝酸、过氧化氢的不同用量以及消化时间长短的影响和在同一体系中铜、锌、铁、锰的彼此干扰情况。结果：检出限铜为0．0048μg／mL，锌为0．0062μg／mL，铁为0．0045μg／mL，锰为0．0081μg／mL，相对标准偏差为2．0％～4．5％，回收率为99．6％-102．1％。     

HPLC测定人血浆中醋氯芬酸药物浓度的研究

目的 建立测定人血浆中醋氯芬酸浓度的高效液相色谱法。方法取血浆500μL酸化后用乙酸乙酯一步提取，40℃水浴氮气吹干，流动相复溶后进样测定。采用HypersilC18柱（250mm×4．6mm，5μm）；流动相为甲醇-0．1％冰醋酸（65：35，V／V），流速1．2mL／min；检测波长为276nm，柱温为室温。结果醋氯芬酸的血药浓度在0．1～15．0μg/mL范围内线性关系良好，此方法的最低检测浓度为0．1μg／mL。血浆中低、中、高3种浓度的回收率分别为103．23％，104．33％，101．11％，精密度RSD日内为2．800％～6．841％，日间为4．702％～8．161％。结论该方法专属性强，重现性好，操作简便。适用于药动学研究和血药浓度监测。     

高效液相色谱法测定调味品中"对位红"含量

建立了调味品中“对住红”含量的高效液相色谱测定方法。调味品样品用乙腈超声提取，以SB-C18柱作为分离柱，用乙酸溶液／乙腈（30：70）为流动相，流速0．7mL／min，波长482nm，进样20μL进行液相色谱分析。在10～100μg／kg范围内，方法回收率在83．1％～98．6％之间。最低检测浓度可达5μg／kg，具有良好的准确性和精密度。     

硒对杏鲍菇菌丝生长的影响

通过在液体培养基中添加亚硒酸钠,研究硒对杏鲍菇菌丝生长的影响.结果表明:当硒的浓度为0～ 30μg/mL时,杏鲍菇的生物量、多糖含量、蛋白质含量均呈增加趋势,且浓度在30μg/mL时,含量为最大;当浓度超过30μg/mL时,表现出抑制作用.硒在菌丝内的积累量在30μg/mL时为最大.     

营养珍珠悬浮降脂保健饮料的工艺配方研究

采用感官评定和多种实验方法对营养珍珠悬浮降脂保健饮料的工艺配方进行了研究。营养珍珠的最佳配方为海藻酸钠1．5％，明胶1．0％，DNA0．6％，奶油和糖适量，氯化钙3．0％，固化时间10分钟；液体保健饮料的最佳配方为山楂汁300mL、枸杞子提取液100mL、何首乌提取液250mL、蜂蜜0.03g／mL、蔗糖0．07g／ml。其中降血脂主要成分为总黄酮、枸杞多糖和二苯乙烯甙，营养珍珠主要成分为天然杂多糖和DNA。     

超声波提取北芪菇多糖工艺的优化及含量测定

研究超声波辅助提取法从北芪菇中提取粗多糖的工艺。通过单因素试验确定了影响多糖类化合物的主要因素及较优水平,用正交试验优化提取工艺条件。结果表明：在超声波功率350W、提取温度80℃、料液比1g：60mL、提取时间50min的工艺条件下,北芪菇粗多糖最大提取率为8．71g／100g。用分光光度法测定其含量,以葡萄糖为标准品,苯酚一硫酸体系显色,在波长490nm处对样品中的粗多糖进行含量测定。结果表明,粗多糖在0．1mg／mL～2．0mg／mL范围内线性关系良好,相关系数为0．9991,平均回收率为97．38％,RSD=1．29％。该方法测定北芪菇中粗多糖含量,操作简便、准确,具有良好的稳定性和重现性。     

蛋白质水解度测定方法综述

对目前国内外常用的蛋白质水解度测定方法进行了综述，其中pH—state方法是通过滴定水解过程中释放的质子测定DH；OPA、TNBS及国内常用的水合茚三酮和甲醛等测定方法是利用游离氨基的反应测定DH。     

聚多元羧酸盐的合成及应用

研究了聚多元羧酸盐的合成方法及反应机理,将其应用于洗涤剂和PVC制品中分别代替三聚磷酸钠和邻苯二甲酸二丁酯,证明有良好效果。     

SEROLOGIC IDENTIFICATION OF SPECIES OF ORIGIN OF SAUSAGE MEATS

SUMMARY: A partially purified immunoglobulin G (lgG) solution prepared from the serum of species to be tested was heated to the specifications for sausages. The resulting supernatant fluid was decanted and the precipitate washed with saline and used to immunize rabbits. The supernatant fluid was used to sensitize tanned sheep red blood cells. The immune serum was rendered monospecific by absorptions with heterologous, heated lgG precipitates. A sample of monospecific immune serum was absorbed with a washed homogenate of sausage. Aliquots of the monospecific immune serum, both untreated and sausage absorbed, were tested with cells sensitized with the homologous heated lgG supematant fluid. A significant reduction of titer by sausage absorption indicated that the sausages contained the meat homologous to the immune serum.     

BASIS OF STABILITY OF AMINE SALTS OF LINOLEIC ACID

SUMMARY— The mechanism and generality of the known stabilization against autoxidation conferred on linoleic acid by certain basic amino acids, such as lysine and arginine, was investigated. Basic amino acids were the only class of compounds found to confer the effect. However, the smallest basic amino acid, 2,3-diaminopropionic acid, was not effective, nor was αβω-diaminc acid, 3,6-diaminohexanoic acid, although a simple isomer of lysine. The stabilization was observed only in the solid phase. Inclusion of sodium chloride in the solid matrix was deleterious to the effect. A large number of physical and chemical observations were made and correlated but it has not been possible to draw detailed conclusions about the mechanism of stabilization, nor can a detailed structure of the stabilized complex be suggested. The cause of the phenomenon appears to be closely associated with the physical arrangement of the ions in the crystal lattice.     

STABILITY OF AQUEOUS EMULSIONS OF THE ESSENTIAL OIL OF HOPS

Hop oil emulsions prepared from different varieties of hops have been found to exhibit enhanced physical stability on the addition of blends of the emulsifiers Span 20/Tween 80 or Span 60/Tween 60. Examination of the particle size and volume distributions of an emulsion by use of a Coulter Counter was found to be an excellent method of monitoring its stability. An indication as to the relative efficiency of emulsifiers can be obtained from Coulter Counter measurements on hop oil emulsions after storage for 4 days. The use of an ultracentrifuge provies a rapid means of testing emulsion stability and hence the effectiveness of emulsion stabilizers.     

矩阵乘积的行式,列式

给出了ｍ×ｍ矩阵与ｍ×ｎ矩阵的行（列）式的表达式．若Ａ＝ａ１１ａ１２…ａ１ｍａ２１ａ２２…ａ２ｍ……ａｍ１ａｍ２…ａｍｍＢ＝ｂ１１ｂ１２…ｂ１ｎｂ２１ｂ２２…ｂ２ｎ……ｂｍ１ｂｍ２…ｂｍｎ分别是ｍ×ｍ，ｍ×ｎ矩阵，则｜Ａ｜｜Ｂ｜＝｜ＡＢ｜＋∑ｉ１＜ｉ２＜…＜ｉｔｊ１＜ｊ２＜…＜ｊｔ１≤ｔ≤ｍｎ－ｔ≥ｍＮＢｉ１ｉ２…ｉｔｊ１ｊ２…ｊｔＮＡＢ１…ｍ（－１）ｓｔ＋１ｊｔ＋１…（－１）ｓｎｊｎ其中ｉ１，ｉ２，…，ｉｔ是１，２，…，ｍ中ｔ个数码；ｊ１，ｊ２，…，ｊｔ，ｊｔ＋１，…，ｊｎ是１，２，…，ｎ的一个排列；ｓｒ＝π（ｊ１，ｊ２，…，ｊｔ，ｊｒ）（ｒ＝１，２，…，ｎ）是排列ｊ１，ｊ２，…，ｊｔ，ｊｒ的反序数．     

百年风尚

一场流光溢彩、赏心悦目的展览,一段百年风尚演进的传奇旅程,一次东西方文化艺术的完美对话。2013年9月13日,“博萃臻艺一中西方珍宝艺术展”在辽宁省博物馆举行了隆重的开幕仪式,法兰西共和国驻华大使白林女士、辽宁省文物局局长丁辉先生、辽宁省博物馆馆长马宝杰先生、卡地亚全球总裁兼首席执行官邓阁仕先生、卡地亚区域行政总裁（北亚洲）陆慧全先生、卡地亚中国区首席执行官陆意斯先生、辽宁省文物店总经理张春鹰先生,以及众多文化界与文博界的贵宾齐聚一堂,共同见证了这场文化艺术盛事。     

基于复合运动理论推导求点的速度及加速度的球坐标法

本文基于点的复合运动理论,用球坐标法推导出点的速度及加速度的计算公式,进一步论证了理论力学中点的速度,加速度公式的正确性。     

DEVELOPMENT OF CHAINS OF CELLS OF SACCHAROMYCES CEREVISIAE DURING FERMENTATION

The lengths of chains of cells of Saccharomyces cerevisiae were studied during fermentation. Pitching yeast generally contained about half of the total number of cells as two-celled chains. The chain lengths varied during the subsequent fermentation and the variations were characteristic of the strain. Electronic counting assessments of chain length were unreliable.     

EFFECTS OF TYPES OF FAT AND OF RATES AND TEMPERATURES OF COMMINUTION ON DISPERSION OF LIPIDS IN FRANKFURTERS

ABSTRACT— The effect of time, temperature and rpm of comminution of emulsions was determined on the dispersion of approximately 25% of beef fat, pork fat or cottonseed oil in frankfurters. The numbers of lipid particles 5 μ or less in diameter increased in frankfurters containing either beef or pork fat as comminution was continued to higher temperatures, with pork fat dispersed more thoroughly. Fat tended to separate from frankfurters containing beef fat in particles 200 μ or more in diameter. In contrast, no specific degree of dispersion of particles 5 μ or less in diameter consistently indicated emulsion stability, or its lack. Increased rpm during comminution produced an increased dispersion of beef or pork fat. Under the same conditions pork fat was dispersed more finely than beef fat. Dispersion of cottonseed oil produced finely dispersed particles beyond the resolution of light microscopy, as was confirmed by electron microscopy which showed a substantial number of particles to be less than 1 μ in diameter.