洋葱果脯生产工艺的优化

以洋葱为原料,经过切片、硬化、糖煮、糖渍、干燥等工艺过程,研制洋葱果脯.研究氯化钙浓度、柠檬酸浓度、蔗糖浓度、硬化时间、煮制时间、糖渍时间等因素对洋葱果脯品质的影响,筛选出最佳的产品配方及生产工艺.试验结果表明.洋葱果脯的最佳生产条件为:0.3%的氯化钙硬化2 h,60%的蔗糖和0.4%的柠檬酸混合糖液糖煮1.5 h,糖渍时间为10 h.     

冬瓜果脯的生产工艺及其HACCP控制

介绍了冬瓜果脯的生产工艺。对冬瓜果脯生产过程进行危害分析,确定关键控制点及其关键限值,并采取相应的纠偏措施。冬瓜果脯生产中的HACCP控制提高了产品的质量和安全性,增强了产品的市场竞争力。     

HACCP体系在低糖猕猴桃果脯生产中的应用

HACCP是一个确认、分析、控制生产中可能发生的危害的动态管理体系。针对低糖猕猴桃果脯生产工艺,建立HACCP质量控制体系,为生产符合标准的低糖猕猴桃果脯提供质量依据。     

低糖西瓜果脯的生产工艺研究

在分析传统果脯生产方法的基础上,确定了低糖型西瓜果脯的生产工艺,并重点试验研究了硬化、烫漂、浸糖、煮制及干燥过程对西瓜果脯品质的影响,优选出较佳的工艺条件。研究结果表明,硬化和煮制是西瓜果脯生产的必要工序,浸糖则是控制成品含糖量及影响产品品质的主要因素。     

低糖哈密瓜果脯的生产工艺及HACCP控制

介绍了低糖哈密瓜果脯的生产工艺,根据其生产工艺进行危害分析,确定关键控制点及其关键限值,并采取相应的纠偏措施。HACCP体系在低糖哈密瓜果脯生产中的应用,提高了产品的质量和安全性,增强了产品的市场竞争力。     

山药洋葱营养酒的研究

以山药、洋葱为原料,将二者混合并加入酒母进行发酵,生产具有保健功能的山药洋葱营养酒.通过测定发酵过程中产生的酒度并进行感官评定,研究了发酵生产山药洋葱营养酒的主要工艺参数.     

香脆番木瓜脯的研制

利用未成熟或台风吹落的番木瓜果实为原料,研究出了香脆番木瓜果脯的生产技术.采用该技术研制出的果脯保持了鲜果特有的香甜爽脆的性质.解决了传统煮制法生产果脯存在的甜腻、软绵的问题.     

洋葱糯米酒发酵工艺的研究

以洋葱、糯米为原料，将二者混合并加入安琪米酒曲进行发酵，生产具有保健功能的洋葱糯米酒。通过测定发酵过程中产生的酒度并进行感官评定，研究了发酵生产洋葱糯米酒的主要工艺参数。     

酒浸泡冬枣果脯的开发研究

以酒泡冬枣为主料,在传统枣类果脯加工工艺基础上,研究糖煮工艺过程中各影响因素对冬枣果脯水分含量、糖分含量及感官质量的影响。通过正交试验得到的冬枣果脯加工的最佳工艺条件为:糖煮时间(75～90)min、干燥条件(65℃、14h)、白糖添加量(57.98%),最佳柠檬酸溶液浓度(0.19%)。在该工艺条件下,生产出的果脯糖含量65%以上,水分含量20%以下,风味优良。     

姜黄素副产品在果脯蜜饯生产中的防腐抑菌效果

以果脯蜜饯生产和贮藏过程中常见腐败菌灰葡萄孢菌和扩展青霉为试验菌,采用牛津杯法确定3种姜黄素副产品水溶性姜黄素、油溶性姜黄素、姜黄精油对其抑制效果,并确定最小抑菌浓度。通过浸泡处理法测定姜黄副产品对于果脯产品盐渍桃子和盐渍杨梅不同时间果脯发病率和失重率的影响。抑菌试验结果表明:对于灰葡萄孢菌和扩展青霉,姜黄精油效果最好,最小抑菌浓度分别为10~(-2)和10~(-3),水溶性姜黄素效果次之。体内试验结果显示:姜黄精油和水溶性姜黄素对果脯原料切块桃子和杨梅的发病率和失重率均明显低于空白对照(P0.05),其中姜黄精油的防腐保鲜效果最好,优于阳性对照苯甲酸钠与山梨酸钾复配处理组,并且可以保护桃块和杨梅的色泽,在果脯蜜饯生产过程中糖渍前原料的短期保存上具有良好的应用前景。     

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。     

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.     

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。     

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。     

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.     

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.     

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.     

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．     

ANALYTICAL CHARACTERIZATION OF THE PRODUCTS OF NONENZYMATIC GLYCOSYLATION OF LYSOZYME

The quantitative analysis of the reaction products of the water activity dependent nonenzymatic glycosylation of lysozyme was not straightforward. Difficulties arose in the determination of the number of bound glucose molecules because glycosylation leads to glucose mediated protein aggregation, and the likely presence of a mixture of relatively labile Schiff-base intermediates, and the more stable ketoamine products generated by Amadori rearrangement. Polyacrylamide gel electrophoresis was used to monitor protein aggregation; periodate oxidation, nuclear magnetic resonance (NMR), and oxalic acid hydrolysis combined with HPLC, emerged as the most promising methods to quantitate the degree of glycosylation. Possible interpretations are advanced to explain the apparent discrepancies in degree of glycosylation suggested by the different analytical methods evaluated.