香辛料微胶囊化最佳工艺的研究

以香辛料中具有代表性的大茴香为研究对象，确定水蒸汽蒸馏法提取精油的最佳工艺条件；通过喷雾干燥法使香辛料微胶囊化，确定其最佳精油含量以及干物质含量。     

香辛料精油微胶囊化壁材的研究

本文以香辛料中典型代表－八角精油为心材，通过喷雾干燥技术进行微 胶囊化，利用三因子单形重心方法，找出了阿拉伯胶、麦芽糊精和ｐ一环糊精三 种壁材的最佳配比。     

香辛料对提高食品品质及安全性的研究进展

香辛料是利用植物的种子、花蕾、叶茎、根块或其提取物,加工得到的具有刺激性香味、挥发油、辣味成分,以及有机酸、纤维、淀粉粒、树脂、粘液物质、胶质等成分。其大部分香气来自蒸馏后的精油,能赋予食物以风味,增进食欲,帮助消化和吸收。综述了香辛料及其提取物在抗氧化、食品护色和食品保鲜方面的研究进展。针对目前食品产品容易出现的腐败和易产生有毒有害化合物的问题,着重讨论了香辛料在相关食品产品中所发挥的提高食品安全性的作用。     

植物精油抗病毒活性的研究进展

植物精油是植物体内的次生代谢产物,一般是采用一系列物理方法从植物的花、草、叶、茎或果实中提取出来并具有一定香气和挥发性的油状物质。在人类与病毒抗争的漫长历史中,植物精油一直扮演着不可或缺的角色。笔者对部分植物精油的化学成分及抗病毒作用进行综述,并对其抗病毒的可能作用机制进行探讨,旨在为深入开展植物精油抗病毒作用研究提供参考。     

4种植物精油的抑菌活性及应用

采用液体培养基稀释法测定4种植物精油对11种动物病原细菌的最低抑制浓度(MIC),山苍子精油、南丰蜜橘精油、飞蓬精油和胜红蓟精油的MIC分别为0.062 5～0.5、0.125～1、2～4和0.062 5～0.125mL/L;山苍子精油、南丰蜜橘精油和胜红蓟精油对供试病原细菌的抑菌活性好,飞蓬精油的抑菌活性相对较差.采用气态熏蒸法测定4种植物精油对环境常见霉菌的抑菌效果,当精油剂量为16μL/皿时,4种植物精油对环境霉菌有抑制作用,山苍子精油和南丰蜜橘精油的抑制效果较好(此2种精油在27℃下对面包霉变有较好的抑制效果).通过对植物精油漱口水的配方研究,确定了配方中各成分的最佳配比,并制备出山苍子精油漱口水.用山苍子精油漱口水漱口,对口腔细菌的除菌率为39.96％,与市售漱口水的除菌率相似,在除菌方面达到了工业产品的要求.采用GC/MS技术鉴定了4种植物精油的主要化学成分.     

江西精油植物资源

江西的自然环境适合于多种植物的生长,境内蕴藏着丰富的精油植物资源。根据多次考察的资料表明,江西境内已发现并有记载的精油植物有98科,750种以上。其中包括自然野生、传统栽培和从境外引种成功的种类。本文详述了精油植物在江西境内不同地域的分布情况,对其中一些有开发价值的精油植物种类着重进行了介绍。为研究、开发、利用这些丰富的资源提供了基本依据。     

植物精油的药理作用研究及其对肠道健康的影响

植物精油是一类从植物中提取的具有特殊芳香的挥发性天然化合物,具有抑菌、抗氧化、抗炎、抗病毒、抑肿瘤及其他药理作用,在医药学、食品和日化用品,农业等方面都有广泛的应用.本文就目前国内外对植物精油的药理作用研究及其对肠道健康的影响作一综述,以期对植物精油的药理作用及其对肠道健康的影响的研究提供理论参考.     

山鸡椒（山苍子）精油研究现状

就我国重要的特色香料植物山鸡椒（山苍子）的精油研究现状,从精油得率、精油成分和相对含量、精油利用等几个方面进行了分析与综述。为全面了解与掌握山鸡椒精油的基本情况提供参考．     

微胶囊双水相提取精油的工艺研究

把微胶囊技术和双水相萃取技术相结合，用于提取植物精油，能避免提取过程中的高温、氧化、聚合等情况发生，有效地保护了精油的天然组分，通过调整糊精和盐的用量改变分配比，可控制囊化萃取物中精油的各种成分比，以达到有目的、最有效的、最佳分配比的囊化萃取。     

关于香辛料保鲜猪肉技术的研究

叙述了几种常见香辛料及其主要保鲜机能成分，并以不同组合与不同浓度提取液配制成一系列天然保鲜剂。运用感官鉴定、ｐＨ值比色法、硫化氢实验、微生物检测法和蛋白质沉淀法，在不同温度条件下，对香辛料保鲜猪肉技术进行研究。结果表明：在６℃条件下，经香辛料保鲜剂处理过的生猪肉保鲜期可达１３ｄ，而不经处理的对照样只能保鲜２ｄ，两者差异显著。研究发现香辛料中丁香、肉桂、豆蔻、小茴香保鲜作用较好     

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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