查询词典 physicochemical

Aim To study the physicochemical properties and the structure of Achyranthes bidentata polysaccharide.

目的 研究牛膝多糖的理化性质与结构。

ABSTRACT To study the antibacterial constituents from the fermentation broth of endophytic fungus Penicillium sp. 0935030 from mangrove plant Acrostichum aureurm. The separation procedure was guided by antibacterial bioassay. Seven compounds were isolated and purified by column chromatography, and their structures were identified as cyclo (1), cyclo (2), 1(2Furanyl)1,2ethanediol (3),(3β,4β,22β)olean12ene3,22,23triol (4), mannitol (5), uridine (6), and liquiritigenin (7) by physicochemical and spectral data.

为研究红树林植物卤蕨内生真菌Penicillium sp.0935030发酵物中的抗菌活性成分，采用活性追踪的方法，用多种色谱技术对化合物进行分离纯化，通过理化性质和光谱数据鉴定出7个化合物，分别为：环(1)，环(2)，1呋喃基1，2乙二醇(3)，(3β，4β，22β)12烯3，22，23三羟基齐墩果烷(4)，甘露醇(5)，尿苷(6)和甘草素(7)。

The physicochemical properties of the oil obtained from the whole grain adlay were more stable during storage at low temperature ; that meant the oil had lower acid value and peroxide value.

原料中以带壳籽实於低温贮存时，薏仁油的理化特性较为稳定，亦即酸价及过氧化价均较低。

Whole grain adlay and dehulled kernels stored at room temperature ( about 25℃), 15℃ and 5℃ were used as raw materials. Completed random design and factorial experimental design were adopted to analyze the changes of coixenolide content, fatty acid distribution and physicochemical properties ( including acid value and peroxide value ) of the adlay oil extracted from the materials in order to find more suitable storage condition.

摘要本研究探讨薏苡籽实，以带壳状态和脱壳后的糙薏仁粒分别贮存於常温(约25℃)，15℃及 5℃之下，利用 CRD 和复因子试验设计定期取样分析籽实在贮藏六个月期间薏仁油中薏仁酯含量，脂肪酸组成，以及薏仁油理化特性之变化，以期找寻薏苡籽实的较适贮存条件。

The relationship between pentosans physicochemical properties and their influence to dough and breadmaking properties was analyzed.

水溶性较好的戊聚糖组分可以较好地延缓面包的老化，而水溶性较差的戊聚糖组分延缓面包老化的效果较差。

The structure and physicochemical performance of nanocapsules,such as particle size,rate of capsulation,Zeta potential, heat-sensitivity and pH-sensitivity are also reviewed.

从纳米胶囊的粒径控制、包裹率、Zeta电位、热敏性和酸碱敏感性等方面分析了制备方法对纳米胶囊结构性能的影响。

But there is not report about comparison between microparticle and nanoparticle, pure ZSM-5 and co-crystalline, unsupported and supported ZSM-5 zeolite in physicochemical and catalytical characters.

但将其微米颗粒与纳米颗粒、纯ZSM-5与混晶、非负载与负载型分子筛放在一起进行系统的物化性能和催化性能研究对比的工作尚未见报道。

Methods: The chemical constituents of Chaenomeles speciosa was analyzed by various chromatographic methods. The structures of the compounds were identified based on physicochemical properties and spectral data.

利用多种色谱法对皱皮木瓜的化学成分进行系统研究，并根据理化性质和波谱数据进行结构鉴定。

Their structures were identified by physicochemical constant and spectral analysis (IR, UV, EI-MS, 1H-NMR, 13C-NMR, and HMBC). Results The compounds were identified from their ethanol extracts as: 6, 8-dihydroxy-2-[2-(3'-methoxy-4'-hydroxyl phenylethyl)] chromone and 6-methoxy-2-[2-(3'-methoxy-4'-hydroxyl phenylethyl)] chromone.

结果 从沉香乙醇提取物中分得2个色酮类成分，分别鉴定为6，8-二羟基－2-［2-（3'-甲氧基－4'-羟基苯乙基）］色原酮{6，8-dihydroxy-2-[2-(3'-methoxy-4'-hydroxyl phenylethyl)]chromone，Ⅰ}和6-甲氧基－2-［2-（3'-甲氧基－4'-羟基苯乙基）］色原酮{6-methoxy-2-[2-(3'-methoxy-4'-hydroxyl phenylethyl)]-chromone，Ⅱ}。

A preliminary investigation of composition and dominant species of ciliata in Yanghe River was conducted, and totally 46 species were detected by physicochemical monitoring of the water quality.

对洋河的纤毛虫的种类组成、优势种进行了初步调查，同时对水质进行理化监测，共鉴定出纤毛虫46种。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷