AS39应用于中性白卡纸的探讨

本文介绍了AS39应用于中性白卡纸生产的情况。试用情况表明①采用AS39中性施胶系统可实现酸性到中性的平稳过渡。②使用AS39中性施胶剂，解决了使用AKD施胶时因“白色污染”带来的糊网、腐浆等操作故障。③用AS39替换阳离子分散胶用于底浆的施胶，也可以解决使用阳离子松香胶时出现的用量大、施胶不稳定等不足之处。     

采用阴离子松香乳液AS39进行中性/碱性施胶的探讨

本文就阴离子松香乳液AS39的中性/碱性施胶效果进行了初步的探讨,并讨论了AS39中性施胶对纸张质量与生产成本的影响.     

采用阴离子松香乳液AS39进行中性／碱性施胶的探讨

本文就阴离子松香乳液AS39的中性/碱性施胶效果进行了初步的探讨,并讨论了AS39中性施胶对纸张质量与生产成本的影响。     

新型中性造纸专用胶AS39A应用于亚铵纸浆的施胶

介绍中性造纸专用胶AS39A在亚铵草浆上的应用实验情况,实验结果表明,AS39A应用于难施胶的亚铵草浆.获得了良好的中性施胶效果.适宜的中性施胶条件为硫酸铝用量1.0%,3901胶料用量0.8%,3902胶料用量0.6%,3903胶料用量0.4%,碳酸钙用量5%～25%,施胶顺序为逆向施胶.     

乳液施胶剂AS39用于双胶纸的中性施胶

本文介绍了采用松香中性胶AS39对双面胶版纸进行中性施胶的有关情况，试用结果表明，采用AS39中性施胶以后，（1）可以显著提高成纸的强度，成纸的白度，不透明度，平滑度均有改善。（2）细小组分留着率明显提高，流失大大减少。（3）可以产生明显的经济效益。     

造纸助剂与湿部化学专题讲座（三）——松香施胶过程中的湿部化学

在很大的程度上,施胶化学是造纸湿部化学的主体,本章从施胶剂的发展动态,松香酸性施胶及机理,松香中性施胶技术,AS39A二维四重留着机理,AS39A技术与成纸质量,AS39A技术与清洁生产,施胶过程中的协同稳定效应,铝离子化学等几个部分,系统介绍松香施胶过程中的湿部化学.     

AS39A松香中性胶在双面涂布白板纸生产中的应用与实践

本文详细介绍了AS39A松香中性胶在双面涂布白板纸生产中的应用.用数据对酸性、中性不同施胶工艺、成纸纸质量、经济效益进行了对比.     

松香中性施胶剂AS39A成功应用于高档涂布纸

该文介绍了一种适合中国国情的中性施胶剂AS39A,在涂布白板纸生产中的应用表明,AS39A能适应多种纸浆,能实现真正的中性施胶,提高原纸的不透明度,白度与遮盖性,明显提高涂布纸的外观质量与印刷效果,此外,AS39A还提供一种多功能的湿部化学体系,从而清洁了生产系统,提升产品档次.     

采用松香中性胶AS39生产中性高白度书写纸

在阴离子松香中性施胶剂的开发方面,上海海格化工有限公司已于近期批量生产阴离子中性施胶剂AS39,并在造纸生产线上试用成功,施胶pH值范围6.0～8.5,矾土用量为0.5%～1.0%,其性能指标达到了日本同类产品水平.     

湿部化学技术与我国造纸工业现代化

本文主要介绍了湿部化学的兴起，中性造纸系统的湿部化学，AS39A中性施胶技术以及造纸化学品概况，并就湿部化学在现代造纸工业的地位和作用及其发展趋势进行了评述。     

大酱发酵过程中大豆皂甙变化的研究

以东北产大豆为原料,用中国和朝鲜大酱厂常用的AspergillusoryzeAS3951和No．39两株菌,研究了大酱发酵过程中大豆皂甙的变化。结果表明,大酱发酵过程中大豆皂甙有明显的变化。No．39菌发酵时,由原料中的4个皂甙组分,制曲后变成8个组分,发酵结束后只剩下5个组分;AS3951菌发酵时,由原料中的4个组分变成制曲后的9个皂甙组分,发酵结束剩下4个组分。因为大酱中皂甙的Rf值与原料皂甙的Rf值不一样,说明在大酱发酵过程中大豆皂甙的糖基发生了改变。     

糖化黑曲霉复壮方法的研究

采用透明圈法对糖化黑曲霉AS3.324和AS3.4309的复壮方法进行研究,选出了三种适合的筛选培养基,确定了具体的操作步骤.复壮后菌株的麸曲糖化酶活力分别比退化的出发菌株的麸曲糖化酶活力提高45%和44%.     

Effect of varying dietary ratios of alfalfa silage to corn silage on production and nitrogen utilization in lactating dairy cows

Twenty-eight (8 ruminally cannulated) lactating, multiparous Holstein cows were blocked by DIM and randomly assigned to 7 replicated 4 × 4 Latin squares (28-d periods) to investigate the effects of different dietary ratios of alfalfa silage (AS) to corn silage (CS) on production, N utilization, apparent digestibility, and ruminal metabolism. The 4 diets contained (dry matter basis): A) 51% AS, 43% rolled high-moisture shelled corn (HMSC), and 3% solvent soybean meal (SSBM); B) 37% AS, 13% CS, 39% HMSC, and 7% SSBM; C) 24% AS, 27% CS, 35% HMSC, and 12% SSBM; and D) 10% AS, 40% CS, 31% HMSC, and 16% SSBM. Dietary crude protein contents were 17.2, 16.9, 16.6, and 16.2% for diets A, B, C, and D. All 4 diets were high in energy, averaging 49% nonfiber carbohydrates and 24% neutral detergent fiber. Intake of dry matter, yield of milk, 3.5% fat-corrected milk and fat, milk fat content, and apparent digestibility of neutral detergent fiber and acid detergent fiber all decreased linearly when CS replaced AS. Effects on fiber digestion and milk fat may have been due to increasing fluctuation in ruminal pH and time the pH remained <6.0 when CS replaced AS. Milk protein content increased linearly with increasing CS, but there were no differences in protein yield. There were linear increases in apparent N efficiency and decreases in N excreted in urine and feces when CS replaced AS. Production was depressed on the diet highest in CS. Quadratic analysis indicated that milk and protein yields were maximal at dietary AS:CS ratios of, respectively, 37:13 and 31:19. No diet minimized N excretion without negatively affecting production. Diet C, with an AS:CS ratio of 24:27, was the best compromise between improved N efficiency and sustained production. Because CS is complementary with AS, it is recommended that CS be fed in AS-based diets to maintain milk yield while improving N utilization.     

不同金属离子改性的硅酸铝对薄荷醇吸附/脱附性能研究

本文应用浸渍法制备三种改性的硅酸铝(AS)材料Fe3+/AS、Cu2+/AS、Ag+/AS,采用静态吸附法测定了改性硅酸铝对薄荷醇的吸附量;应用程序升温脱附实验测定了薄荷醇在改性硅酸铝上的脱附活化能,并应用HSAB软硬酸碱理论分析和讨论了薄荷醇在不同改性硅酸铝上脱附活化能的差异。结果表明:与原始硅酸铝相比,金属离子改性后硅酸铝比表面积显著增加,增幅依次为105.83%、44.41%、32.69%。改性材料对薄荷醇吸附量增加,吸附量顺序为Fe3+/ASCu2+/ASAg+/ASAS。此外,该改性改变了薄荷醇与硅酸铝表面的结合力,薄荷醇在改性硅酸铝上的脱附活化能顺序如下:Ag+/ASCu2+/ASFe3+/AS。与原始硅酸铝相比,Ag+和Cu2+增强了薄荷醇与硅酸铝之间的结合力,Fe3+减弱了薄荷醇与硅酸铝之间的结合力,与HSAB软硬酸碱理论预测的结果一致。     

Effect of varying dietary ratios of alfalfa silage to corn silage on omasal flow and microbial protein synthesis in dairy cows

Eight ruminally cannulated multiparous Holstein cows that were part of a larger production trial were used to study the effects of varying dietary ratios of alfalfa silage (AS) to corn silage (CS) on omasal flow of nutrients and microbial protein. Cows were blocked by DIM and randomly assigned to 2 replicated 4 × 4 Latin squares (28-d periods). Diets fed contained (dry matter basis): A) 51% AS, 43% rolled high-moisture shelled corn (HMSC), and 3% solvent soybean meal (SSBM); B) 37% AS, 13% CS, 39% HMSC, and 7% SSBM; C) 24% AS, 27% CS, 35% HMSC, and 12% SSBM; or D) 10% AS, 40% CS, 31% HMSC, and 16% SSBM. Crude protein (CP) contents were 17.2, 16.9, 16.6, and 16.2% for diets A, B, C, and D. All 4 diets were high in energy, averaging 49% nonfiber carbohydrates and 24% neutral detergent fiber. Total microbial nonammonia nitrogen flow was lower on diet D (423 g/d) compared with diets A (465 g/d), B (479 g/d), and C (460 g/d). A significant quadratic effect indicated that microbial protein synthesis was maximal at 38% AS. Supply of rumen-degraded protein decreased linearly from 3,068 g/d (diet A) to 2,469 g/d (diet D). Omasal flow of rumen-undegraded protein did not differ among diets and averaged 1,528 g/d. However, when expressed as a percentage of dry matter intake, rumen-undegraded protein increased linearly from 5.59% (diet A) to 6.13% (diet D), probably because CP from SSBM was more resistant to degradation than CP from AS. Essential AA flow was lowest on diet D, and Lys flow tended to be lower on diet D, which may explain the lower milk and protein yields observed on that diet.     

酱油生产中应用米曲霉和黑曲霉混合制曲的探索

该文考察了米曲霉和黑曲霉在单独制曲及混合制曲条件下,成曲的中性蛋白酶、酸性蛋白酶、糖化酶及孢子数,探讨了酱油多菌种制曲的可行性.实验以豆粕、麸皮为原料,以AS3.042米曲霉、AS3.350黑曲霉为菌种,探讨了2种制曲方式及不同配比制曲效果的影响.结果表明,米、黑曲霉分开制曲比混合接种制曲所得成曲效果好,米、黑曲霉分别以33℃制曲42h、48h得成品曲,再以2∶1混合所得成曲可获得较佳的酶活力,曲料总蛋白酶活力2748U/g与对照值相当,而酸性蛋白酶及糖化酶活力分别达712U/g、1090U/g,较对照分别提高55.8％、25.4％.     

发酵过程添加生香酵母改善酱油风味的探讨

该文详细介绍了低盐固态发酵工艺生产酱油在二油、三油中添加鲁氏酵母AS2．180和球拟酵母AS2．202进行再酵和采用先固后稀添加鲁氏和球拟酵母菌浇淋后酵增香用于改善酱油风味的过程，并取得了显著效果。还探讨了重新发酵后产品的特点和质量指标提高情况。     

刺五加化学成分药动学特性及其体内代谢过程研究进展

刺五加作为吉林省大宗药材之一,具有益气健脾,补肾安神的功效,临床上有显著的抗疲劳作用。刺五加主要化学成分为苷类、黄酮类、香豆素类、多糖类、木脂素类等。刺五加化学成分的多样性,决定了其药动学的复杂性。通过对国内外大量文献的分析、归纳和整理,本文总结了刺五加化学成分的药动学特征及其在体内吸收、分布、代谢(肠道菌群代谢、肝脏代谢、体内代谢)情况,对刺五加化学成分的体内代谢过程进行深入挖掘与探索,为刺五加生物活性物质的开发和利用提供了参考。     

影响纸线原纸强度性能的因素

主要从纤维种类及其配比,PEO、PAE、AS的用量及其二元体系等方面进行了纸线原纸强度性能指标影响因素的研究,确定了抄造纸线原纸适宜的工艺条件.