白蚁伞多糖的发酵生产

对白蚁伞在摇瓶和发酵罐中发酵产生白蚁伞多糖的动力学做了较为详细的研究。比较了几种不同培养基产生白蚁伞多糖的差异，筛选出在２８℃，２００ｒ／ｍｉｎ条件下，摇瓶产生白蚁伞多糖的最适培养基为黄豆粉葡萄糖培养基（以ｇ／Ｌ计）：黄豆粉５，葡萄糖３０，酵母浸膏粉２，ＫＨ２ＰＯ４１，ＭｇＳＯ４７Ｈ２Ｏ０．５，自来水配制，自然ｐＨ值（约５．５）。发酵１２０ｈ，达到最大的多糖产量０．５７３ｇ／Ｌ。在ＮｅｗＢｒｕｎｓｗｉｃｋＳｃｉｅｎｔｉｆｉｃ（ＮＢＳ）Ｂｉｏｆｌｏ－Ⅱ６．６Ｌ的发酵罐上设定２８℃，６００ｒ／ｍｉｎ，５～７Ｌ／ｍｉｎ的通气量发酵２７ｈ，达到最大的多糖产量０．５６５ｇ／Ｌ。发酵过程的ｐＨ和氨基氮变化与其它食用菌的不同。对苯酚－硫酸法测定糖含量的方法作了改进，使测定糖含量的标准曲线线性和准确性得到改善     

白木耳深层发酵培养基的选择

以食用菌白木耳为试验菌种，通过斜面、摇瓶培养及深层发酵正交实验，研究了各培养阶段的基质组成。其结果得出，种子摇瓶培养基（ｇ／１００ｍｌ）：马铃薯２０％、葡萄糖２％、蛋白胨０．２％、ＫＨ_２ＰＯ_４０．１５％、ＭｎＳＯ_４０．０１％、ＣＭＣ－Ｎａ１％。深层发酵培养基组成为：土豆汁１．５％、玉米粉２．０％、麸皮３％、ＫＨ_２ＰＯ_４０．２％、吐温－８０为０．１％，其发酵产物菌丝体中所含粗多糖达１３．２３％，蛋白质含量为３２．８３％、氨基酸为１９．７５ｍｇ／１００ｇ干菌葡萄体，必需氨基酸为７．６７ｍｇ／１００ｇ干菌丝体。     

不同原料配比对谷氨酸棒杆菌ZL9601菌株产赖氨酸的影响

以正交试验法研究分析了不同原料配比对谷氨酸棒杆菌（Ｃｏｒｙｎｅｂａｃｔｅｒｉｕｍｇｌｕｔａｍｉ－ｃｉｕｍ）ＺＬ９６０１菌株产赖氨酸的影响,通过摇瓶培养初步确定了以糖蜜为主要发酵原料生产赖氨酸的培养基最佳配比。结果表明,糖蜜２０％,豆饼水解液１．０％,玉米浆０．６％,在一定发酵条件下（ｐＨ７．０,温度３０℃）可获得较高的产量,平均产酸为６．１％。     

微小毛霉凝乳酶摇瓶发酵的基本条件初探

对利用微小毛霉摇瓶发酵合成凝乳酶的基本条件进行了初步研究，在质量分数为２％的麸皮水解液中，起始ｐＨ６．０，装液量３０ｍｌ／２５０ｍｌ三角瓶，３５℃，振荡速度１２０ｒ／ｍｉｎ条件下摇瓶发酵７２ｈ可达产酶高峰。可得凝乳酶５０００ｕ／ｇ麸皮。同时对微生物凝乳酶的工业生产可能性作了简要分析。     

三种生长因子对AS.1563谷氨酸棒杆菌产赖氨酸的影响

本文以ＡＳ．１５６３谷氨酸棒杆菌为生产菌种，通过摇瓶发酵研究了生物素、苏氨酸、蛋氨酸三种生长因子对赖氨酸产量的影响。实验结果表明，三种生长因子用量不同对赖氨酸产量均有明显影响（Ｐ＜０．０５或Ｐ＜０．０１）。通过正交实验分析，三者在发酵培养基中的最佳用量配合为：苏氨酸５００ｍｇ／Ｌ、蛋氨酸２００ｍｇ／Ｌ、生物素３５０ｍｇ／Ｌ。     

螺旋霉素产生菌抗噬菌体菌株的选育

用Ｃｏ＾６０处理螺旋霉素产生菌ＰＳ，获得了一株抗噬菌体且摇瓶发酵单位比原菌株稍高的突变株Ｒ１０，继而对Ｒ１０进行理性化筛选，在加有２－脱氧葡萄糖的分离培养基上分离到一株抗噬菌体稳定、摇瓶发酵单位又比Ｒ１０高２０％的新突变株，且其摇瓶发酵周期缩短１２ｈ、能耐受更高浓度的自身代谢产物－螺旋霉素。     

人生长激素诱导体外培养的大肠癌细胞株细胞周期动？…

研究人生长激素（ｈＧＨ）对大肠癌细胞增殖和分化的影响，收集人大肠癌细胞株Ｌｏｖｏ和ＬＳ－１７４－Ｔ（简称１７４），以顺铂和／或不同浓度的ｈＧＨ体外培养细胞，２４ｈ后以流式细胞仪测定细胞增殖周期等指标。结果显示ｈＧＨ能诱导１７４细胞Ｓ期数率非常显著地增高（Ｐ〈０．０１）；Ｌｏｖｏ细胞１００ｎｇ／ｍＬ组Ｇ０－Ｇ１期参数下降（Ｐ〈０．０５），Ｓ期参数增加（Ｐ〈０．０１），２００ｎｇ／ｍＬ组Ｇ２－Ｍ期百分     

L─苏氨酸发酵中试研究

以ＢｒｅｖｉｂａｃｔｅｒｉｕｍＬａｃｔｏｆｅｒｍｅｎｔｕｍＬ─苏氨产生菌ＺＴ─１菌株为试验菌种，用５００升标准发酵罐进行Ｌ─苏氨酸中试发酵试验，连续四缺罐Ｌ─苏氨酸产量达到或超过了摇瓶发酵的水平，平均产量为１２．５６ｇ／Ｌ，平均转化率为１１．２６％，罐上发酵所积累的氨基酸谱相与常规摇瓶发酵的谱相十分相似。试验中采用了安排与罐上发酵同步（并行）的摇瓶发酵作对照的方法，从中找出了致使罐上发酵异常（失败）的原因，以试剂级碳酸钙（Ａ．Ｒ）取代了含有杂质（ＭｇＣＯ＿３）的工业碳酸钙，使罐上发酵获得了成功，文中对工业碳酸钙如何导致发酵异常的机制进行了讨论。     

胡萝卜素产生菌红酵母R—93培养基营养条件研究

采用均匀设计的方法，优化胡萝卜素产生菌红酵母Ｒ－９３发酵培养基的营养条件，经回归分析和发酵试验得出最佳培养基配方（％）蔗糖为１．０，蛋白胨为１．２５；（ＮＨ４）２ＳＯ４为１．０ＫＨ２ＰＯ４为０．２８；ＭｇＳＯ４．７Ｈ２Ｏ为０．０２５，在此条件下，发酵指数可达到０．２６２ｇ（干菌体）．（Ｌ．ｈ）＾－１。     

一种适合于溶葡球菌酶发酵生产和分离纯化的半合成培养基的建立

利用含溶葡球菌酶基因的枯草芽孢杆菌转化子进行半合成培养基的发酵试验，结果表明：该半合成培养基适合于枯草芽孢杆菌生长，色素极微。半合成培养基蛋白总量是ＦＤ培养基的１／２４。用半合成培养基摇瓶发酵１４ｈ后，产酶量在（３７０±２６）ｍｇ／Ｌ．表明该培养基将有利于溶葡球菌酶的分离纯化，是溶葡球菌酶发酵生产的一个理想培养基。     

Markedness and its Interpretation in Language Use

Language markedness is a common phenomenon in languages, and is reflected from hearing, vision and sense, i.e. the variation in the three aspects such as phonology, morphology and semantics. This paper focuses on the interpretation of markedness in language use following the three perspectives, i.e. pragmatic interpretation, psychological interpretation and cognitive interpretation, with an aim to define the function of markedness.     

Features of Women's language

Language is a means of verbal communication. People use language to communicate with each other. In the society, no two speakers are exactly alike in the way of speaking. Some differences are due to age, gender, statue and personality. Above all, gender is one of the obvious reasons. The writer of this paper tries to describe the features of women＇s language from these perspectives： pronunciation, intonation, diction, subjects, grammar and discourse. From the discussion of the features of women＇s language, more attention should be paid to language use in social context. What＇s more, the linguistic phenomena in a speaking community can be understood more thoroughly.     

低渗透非均质砂岩油藏启动压力梯度研究

理论推导与室内实验相结合,建立了低渗透非均质砂岩油藏启动压力梯度确定方法。首先借助油藏流场与电场相似的原理,推导了非均质砂岩油藏启动压力梯度计算公式。其次基于稳定流实验方法,建立了非均质砂岩油藏启动压力梯度测试方法。结果表明:低渗透非均质砂岩油藏的启动压力梯度确定遵循两个等效原则。平面非均质油藏的启动压力梯度等于各级渗透率段的启动压力梯度关于长度的加权平均;纵向非均质油藏的启动压力梯度等于各渗透率层的启动压力梯度关于渗透率与渗流面积乘积的加权平均。研究成果可用于有效指导低渗透非均质砂岩油藏的合理井距确定,促进该类油藏的高效开发。     

On Tragic Consciousness In The Works By Ernest Hemingway

As an American modern novelist who were famous in the literary world, Hemingway was not a person who always followed the trend but a sharp observer. At the same time, he was a tragedy maestro, he paid great attention on existence, fate and end-result. The dramatis personae's tragedy of his works was an extreme limit by all means tragedy on the meaning of fearless challenge that failed. The beauty of tragedy was not produced on the destruction of life, but now this kind of value was in the impact activity. They performed for the reader about the tragedy on challenging for the limit and the death.     

Achieving Unusual States of Matter Under High Pressure

正The periodicity of the elements and the non-reactivity of the inner-shell electrons are two related principles of chemistry,rooted in the atomic shell structure.Within compounds,Group I elements,for example,invariably assume the+1 oxidation state,and their chemical properties differ completely from those of the p-block elements.These general rules govern our understanding of chemical structures and reactions.Using first principles calcula-     

Exchange-Correlation and Electronic Excitation Energies from Pairing Matrix Fluctuations

We have developed an adiabatic connection to formulate the ground-state exchange-correlation energy in terms of pairing matrix linear fluctuations.This formulation of the exchange-correlation energy opens a new channel for density functional approximations based on the many-body perturbation theory.We illustrate the potential of such approaches with an approximation based on the particle-particle Random Phase Approximation(pp-RPA).This re-     

Density Functional Theory for the Response of Periodic Systems to Electric Fields Based on the Vector Potential Approach

正The electronic and nuclear(structural/vibrational)response of 1D-3D nanoscale systems to electric fields gives rise to a host of optical,mechanical,spectral,etc.properties that are of high theoretical and applied interest.Due to the computational difficulty of treating such large systems it is convenient to model them as infinite and periodic(at least,in first approximation).The fundamental theoretical/computational problem in doing so is that     

On the Thermodynamic Limit for Responses to Static Electromagnetic Fields

For molecular systems,the quantum-mechanical treatment of their responses to static electromagnetic fields usually employs a scalar-potential treatment of the electric field and a vector-potential treatment of the magnetic field.Although the potential for each field separately is associated with the choice of an(unphysical)origin,the precise choice of the origin for the electrostatic field has little consequences for the results.This is different for the     

Call for Papers

<正>"The Journal of Shanghai Normal University:Mathematics"is published by Shanghai Normal University as regular issues of The Journal of Shanghai Normal University each year from 2014 in English.The editors-in-chief of the issues are professors Yuhao Cong and Maoan Han.The Journal of Shanghai Normal University was started in 1958 with     

Journal of Donghua University ( English Edition) Contents of Volume 31

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