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The immunoregulation activity of SPG-1 mainly existed in the part of sugar chain, but keeping its molecular structure intact had some effects on its immunoregulation activity; SPG sulphation had reducing effects on the immunoregulation of SPG-1, whereas, after medium and low acetification of SPG, the immunoregulation of SPG was enhanced. Conversely after high acetification, the immunoregulation of SPG-1 decreased, that is, after introducing sulfuric and acetic acid base in SPG-1, its immunoregulation changed. All of these indicated the structure of SPG-1 was closely connected with its immune activity.⑤.
甘薯糖蛋白SPG-1的免疫调节活性主要在其糖链部分，但保持分子结构的完整性对其免疫调节的活性有一定的作用；甘薯糖蛋白硫酸化对甘薯糖蛋白SPG-1的免疫调节有降低作用，而中、低度乙酰化后，可提高甘薯糖蛋白的免疫调节作用，高度乙酰化后则降低其免疫调节作用，即甘薯糖蛋白引入乙酰基和硫酸基团后，其免疫调节活性发生了改变，这些均表明了甘薯糖蛋白的结构与其免疫调节活性有密切的关系。
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We further examined the effect of change of histone acetylation level in developmentof IVF and NT embryos.
试验还进一步研究了组蛋白乙酰化修饰的变化对早期IVF和核移植胚发育的影响。
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The degradation kinetics, effect of irradiation on the degree of deacetylation of chitosan and the main chain scission mechanism have been studied.
用 γ射线照射壳聚糖使之发生辐射降解，研究了降解反应的动力学、辐射对壳聚糖脱乙酰化度的影响以及大分子链的断链机理。
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Methyl 6-acylnaphthalene from 2-methylnaphthalene was synthesized via acylation using acetic anhydride and propionyl chloride as the acylating agents with catalyst aluminum trichloride in homogeneous liquid phase system.
为制备重要的化合物2-甲基6-酰基萘，提高酰化产物的收率和纯度，以2-甲基萘为原料，分别研究了乙酸酐和丙酰氯为酰化剂时的酰化反应，对酰化反应的产物进行了GC、FT-IR和GC-MS表征；对酰化反应的影响因素进行了研究。
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Benzoylated phenyl a - and B - 2 - thio - D - fructofuranosides were synthesized and coupled with protected sucrose acceptor to synthesize a - D - fructofuranoside - linkage stereospecifically by employing NIS/AgOTf as catalysts.
在果糖的合成研究中，合成了四苯甲酰基苯基果糖硫苷，并首次将其用作糖苷化反应的给体，在NIS/AgOTf的促进之下，与乙酰化保护的蔗糖受体反应，从而以高产率立体专一地合成了α构型的呋喃果糖苷。
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The optimum reaction condition of NaClO oxidative pretreating and viny acetate acetylating technique has been determined according to sizing property, that further improves the function of acetylated starch size and expands its application in warp sizing .
对醋酸淀粉酯的变性工艺进行了系统的研究和探讨，以浆纱性能为依据，确定了次氯酸钠氧化预处理工艺和醋酸乙烯酯乙酰化工艺的最佳反应条件，进一步提高了醋酸淀粉酯浆料的性能，扩大了醋酸淀粉酯在纺织经纱上浆中的应用
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The quantity of acetylated starch was 35%, the quantity of cross-linked starch was 3%,the quantity of cellulose was 1.5%, the quantity of honey was 60% in the power, the water content of the sample before drying was 35%, the dryer temperature was 135～140℃ and the dried t...
对采用滚筒干燥生产固体蜂蜜的配方及其工艺参数进行了实验研究，初步确定了配方和工艺条件为干粉中乙酰化淀粉的用量35%、交联淀粉的用量3%，纤维素的用量1.5%，蜂蜜的含量60%，干燥前样品的水分含量35%，干燥温度135～140℃，干燥时间90s。
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Three methodsconventional direct acylation,acylation by phase transfer catalyst(PTC,and ionexchange-acylation were selected for the purpose of acetylating κ-carrageenan with 30kDa molecular weight.
选择常规直接酰化、相转移催化酰化和离子交换-酰化共3种方法对3万中等分子量的κ-卡拉胶进行了乙酰化反应。
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Thederivatives of 5 kinds of monosaccharides Xyl, Ara, Man, Glc, Gal were detected anddetermined respectively by GC-MS. The influences of several factors, such asreductive time, reductive temperature, acetylating temperature and acetylating time,on recovery of monosaccharides were studied by orthogonal experiments. The resultsshowed that the reductive temp.
利用气相色谱—质谱联用技术检测五种常见单糖(木糖、阿拉伯糖、甘露糖、葡萄糖、半乳糖)的乙酰化产物含量，采用正交试验综合考察了还原时间、还原温度、乙酰化温度、乙酰化时间等因素对单糖回收率的影响及规律。
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The results indicated that the histone deacetylase inhibitors had effects on the morphology of the polytene chromosomes.
2，利用RT-PCR技术，对去乙酰化酶抑制剂处理后的果蝇的热休克基因的表达水平进行检测，结果表明经组蛋白去乙酰化酶抑制剂处理后的果蝇幼虫，其热休克基因的表达高于基础水平，也就是说去乙酰化酶抑制剂诱导了热休克基因的表达。
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acetylation：乙酰化作用
论文摘要: 表遗传修饰和染色质结构重组(chromatin remodelling)参与了胚胎形成及肿瘤发生,乙酰化作用(acetylation)是调控基因转录的关键修饰之一,组蛋白去乙酰基酶抑制剂被视为肿瘤治疗中最有前景的药物开发目标.
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redox：氧化还原作用
N-乙酰-D-HPG经分离后再水解而得到D-HPG. 研究了温度、酶用量、反应时间、底物浓度对拆分反应的影响. 实验结果表明,在用曲霉酰化酶作拆分剂,反应温度36℃,w(酶)∶w(底物)=1∶26.25,反应时间40h2.4.5 氧化还原作用(redox)和自由基消旋21-22
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butyric anhydride：丁酐
以正丁酐(Butyric anhydride)、壳聚糖(Chitosan)、甲基丙烯酰氧基丙基三甲氧基硅烷(MPTMS)、正硅酸乙酯(TEOS)为原料,采用迈克尔加成反应合成了丁酰壳聚糖-MPTMS,配合酸催化sol-gel过程,制备了透明的壳聚糖/SiO2杂化材料,FTIR表征了杂化材料的结构.