糊精

As for the long-chained guests such as cationic surfactants with different length of alkyl chain added, they can insert into the CD cavity as a spacer to form a ternary inclusion complex with the host molecule.

同时还发现，化学修饰的环糊精所连发色团与CD形成的"自包结"配合物较相同发光分子与非修饰的环糊精形成的包结物具有更强的结合能力。

Methods: The inclusion complex of astaxanthin-hydroxypropyl-β-cyclodextrin was studied by Ultr-aviolet Spectroscopy in aqueous solution and prepared by trituration. The formation of the complex was confirmed by IR spectroscopy. The accelerative experiment of stability of the complex was carried out at 60℃, 5000 lux.

利用紫外光谱法研究水溶液中虾青素和羟丙基－β-环糊精的包合作用；采用研磨法制备虾青素－羟丙基－β-环糊精包合物，并用红外光谱法验证包合物的形成；于60℃，5 000 lux条件下对包合物进行了稳定性加速实验。

In ^1H NMR spectra of cyclodextrin modified by 2-amino-1,3,4-thiadiazole, it was found that the chemical shift of thiadiazole ring shifted to upfield due to diamagnetic shielding effect caused by cyclodextrin.

由于环糊精的屏蔽效应，在2-氨基-1，3，4-噻二唑修饰β-环糊精的^1H NMR中，修饰产物中的噻二唑质严发生了高场位移。

UV-Vis and continuous variation plot method were used to study the complexation of γ-cyclodextrin with bromocresol green, and the stoichiometric ratio of the complexation was to be 1∶2. Thermodynamic analysis results show an inverse relationship between temperature and complexation constant, and the change of enthalpy, entropy and free energy of the complexation were -39.988 kJ/mol, 86.400 J/ and -14.245 kJ/mol, respectively, which indicating that hydrophobic effect was the main force to form the complexes.γ-Cyclodextrin and bromocresol green complexes were examined by nuclear magnetic resonance, infrared spectrum and molecular modeling analysis, and was may be the group included in γ-cyclodextrin.

采用紫外-可见分光光度法和等摩尔连续变化法研究了γ-环糊精与溴甲酚绿的包合作用，确定了包合物形成的化学计量比为1∶2；采用热力学方法分析了温度与包合常数之间的关系，计算了包合过程的焓变、熵变及自由能变化分别为-39.988 kJ/mol， 86.400 J/和-14.245 kJ/mol，这表明疏水作用力为主要驱动力；采用核磁共振、分子模拟和红外光谱法对包合物进行了研究，确定了包合物的形成，分析认为这可能是基团进入γ-环糊精腔内导致增色效应。

With the volatile oil content of Dalbergia odorifera as an index, the stability of the inclusion compound was examined under strong light, high temperature and volatilizing, respectively. In addition, the heat stability of the inclusion complex was investigated by DSC-TGA.

方法在不同溶媒的作用下以饱和水溶液搅拌法包合花梨木挥发油β-环糊精包合物，以花梨木挥发油含量为测定指标，分别对花梨木挥发油β-环糊精包合物和混合物进行强光照射、高温、挥发性实验并通过DSC-TGA对包合物进行了热稳定性研究。

Changes of DBE activity of four cultivars had a single-peak curve, and the peak appeared in 14 d after anthesis. HPLC analysis showed that the activity of DBE to amylopectin was similar. There are two types of DBE in the wheat grains, one is isoamylase, and the other is limit dextrinase.

在灌浆过程中，淀粉去分支酶的活性均呈单峰曲线变化，灌浆中期活性最大；淀粉去分支酶对底物支链淀粉均具有相似的酶解活性；对灌浆中期小麦淀粉去分支酶进行的纯化结果表明，小麦籽粒胚乳中也存在2种类型的淀粉去分支酶，一种是以极限糊精为特异性底物的极限糊精酶，另一种是以支链淀粉为底物的异淀粉酶。

A novel method for determination of benzoyl peroxide with spectrophotometry was developed. Inclusion ratio of β cyclodextrin to dibenzoy peroxide and benzoic acid is obtained with spectrophotometry.The mechanism of the inclusion was studied,too. The results showed that β-CD react with dibenzoyl peroxide to form a 1:1 or 2:1 host-guest complex, with the apparent formation constants of 5.0× 10~2and 2.5× 10~4 , respectively.β-CD reacts with benzoic acid to form a 1:1 host-guest complex with the apparent formation constant of 6.9 × 10~2 after the dibenzoyl peroxide was reduced by hydroxyl ammonium chloride.

建立了用β环糊精测定过氧化苯甲酰的分光光度法，并测定了β环糊精与过氧化苯甲酰和苯甲酸的包结比，随着β-CD浓度的增大，可与BPO分别形成1：1或2：1的包容络合物，包结常数分别为5.0×10~2和2.5×10~4，与苯甲酸形成1：1的包容络合物，包结常数为6.9×10~2；由于包结物的吸光度值比过氧化苯甲酰的吸光度值大大增加，建立了一种当β-CD存在下，在水溶液中测定过氧化苯甲酰的方法。

The inclusion constants was investgated by means of Hildebrand-Benesi double-reciprocal plot which based on the fact that the excitation and emission peak position of Brilliant cresy blue kept unchanged but the emission strength increased disciplinarily with the increasing of β-cyclodextrin concentration.

利用灿烂甲酚蓝的荧光强度随β-环糊精浓度的增加呈现规律性的增加，而最大吸收波长及发射波长不变的性质，用Hildebrand-Benesi法测定了β-环糊精与灿烂甲酚蓝包合物的生成常数，确定包合比，并预测了包合物的可能结构。

The stabiliazation on the ultraviolet light, the ultrasonic radialization and the oxydation of KClO3 for vitamin E and its inclusion compound by β-cyclodextrin is investigate.

用β-环糊精对V进行包络，制备了V-β-环糊精包络物，考察了V及其包络物对紫外光和超声波辐射以及KClO3氧化的稳定性。

β-Cyclodextrin with the 6-hydroxyls protected by dimethyl-tert- butylsilyl was selectively oxidized by lead tetraacetate. After the silyl groups were removed off by boron fluoride-etherate, mono-2,3- dialdehydro-β-cyclodextrin as a cuniform molecule could be constructed.

用四醋酸铅将七元（6-O-二甲基叔丁基硅基）-β-环糊精选择氧化、并用三氟化硼乙醚脱硅基保护基后，再经分离、纯化，可获得具有&楔筒状&空腔的单-2， 3-二醛基-β-环糊精。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。