耐盐Bacillus sp.9BS的筛选及其对染料的脱色效果     

汪春蕾  田菲  张月颖  孙鹤敏  李启育  张凯鑫 《湖南农业大学学报(自然科学版)》2015,41(3)

利用含铜的富集培养基,从东北林业大学实验林场白桦林下的土壤中筛选出1株菌株,研究其生理生化特性,结合经典形态学及16S rDNA序列同源性分析,鉴定该菌株为芽孢杆菌属细菌,并将其命名为Bacillus sp.9BS。菌株9BS最适生长温度为37℃,最适生长p H值为7.0,并具有很好的耐盐性,在7%Na Cl溶液中生长良好。以丁香醛连氮为底物,以芽孢干重计量,其芽孢漆酶的活性高达47.1 U/g。菌株9BS的芽孢漆酶在不含介体的情况下,对靛红(IC)和结晶紫(CV)的脱色效果较为显著,6 h脱色率分别为73.3%和82.2%。  相似文献   

Printing properties of novel regenerated cellulosic fibers     

Ik?Soo?Kim  Joonseok?KohEmail author  Nam?Keun?Han  Jae?Pil?Kim 《Fibers and Polymers》2004,5(3):219-224

The reactive printing properties of regular viscose rayon and a new regenerated cellulosic fiber (enVix®) which was prepared from cellulose acetate fiber was investigated in a comparative manner. From the results, it was found thatenVix exhibited better printing properties than regular viscose rayon. It showed stable final color yields, irrespective of the amount of thickener, hence reproducibility of printing ofenVix is expected to be excellent. In addition, urea requirements were less for the printings onenVix than for the corresponding printing on viscose rayon. Therefore,enVix is also expected to reduce the amount of the urea which causes environmental problems in dyehouse effluent.  相似文献   

Dyeing and fastness properties of vat dyes on a novel regenerated cellulosic fiber     

Jung Jin Lee  Woo Sub Shim  Ik Soo Kim  Jae Pil Kim 《Fibers and Polymers》2005,6(3):244-249

enVix is a novel regenerated cellulosic fiber, which is prepared from cellulose diacetate fiber using environmentally friendly manufacturing process. Vat dyeing properties of the enVix were investigated and compared with those of regular viscose rayon. The enVix exhibited better dyeability than viscose rayon. The colour yields of vat dyes on the enVix were found to be dependent on dyeing temperature as well as the amount of levelling agent and salt. Good build-up and good to excellent fastness properties were obtained on the enVix fabric.  相似文献   

Dyeing of cotton and silk yarn with the extracted dye from the fruit hulls of mangosteen,<Emphasis Type="Italic">Garcinia mangostana</Emphasis> linn     

M. Chairat  J. B. Bremner  K. Chantrapromma 《Fibers and Polymers》2007,8(6):613-619

The extracted dye from the dried fruit hulls of mangosteen was used as a natural dye for the dyeing of cotton and silk yarn. The optimal conditions for dye extraction were to extract the dried fruit hulls of mangosteen at 80°C for 1 hour with a 15 % w/v citric acid solution in a 1:4 ratio of mangosteen powder to solvent. Cotton dyeing with the extracted dye from the dried fruit hulls of mangosteen was carried out at 60°C for 60 minutes with a material to liquor ratio of 1:25. The effect on dyeing of mordant type with different mordanting methods was studied. The results showed that the dyeing of cotton using the post-mordanting method with ferrous sulfate and calcium hydroxide not only provided better depth of shade but also provided better wash fastness and light fastness than with other mordants (alum; zinc tetrafluoroborate) or without a mordant. Good fastness properties were also obtained using a post-mordanted silk with calcium hydroxide.  相似文献   

Distribution and accumulation of Cy5.5-labeled thermally cross-linked superparamagnetic iron oxide nanoparticles in the tissues of ICR mice     

Jin Joo Hue  Hu-Jang Lee  Sangyong Jon  Sang Yoon Nam  Young Won Yun  Jong-Soo Kim  Beom Jun Lee 《Journal of veterinary science (Suw?n-si, Korea)》2013,14(4):473-479

Free Cy5.5 dye and Cy5.5-labeled thermally cross-linked superparamagnetic iron oxide nanoparticles (TCL-SPION) have been routinely used for in vivo optical imaging. However, there is little information about the distribution and accumulation of free Cy5.5 dye and Cy5.5-labeled TCL-SPION in the tissues of mice. Free Cy5.5 dye (0.1 mg/kg body weight) and Cy5.5-labeled TCL-SPION (15 mg/kg body weight) were intravenously injected into the tail vein of ICR mice. The biodistribution and accumulation of the TCL-SPION and Cy5.5 were observed by ex vivo optical imaging and fluorescence signal generation at various time points over 28 days. Cy5.5 dye fluorescence in various organs was rapidly eliminated from 0.5 to 24 h post-injection. Fluorescence intensity of Cy5.5 dye in the liver, lung, kidney, and stomach was fairly strong at the early time points within 1 day post-injection. Cy5.5-labeled TCL-SPION had the highest fluorescence density in the lung at 0.5 h post-injection and decreased rapidly over time. Fluorescence density in liver and spleen was maintained over 28 days. These results suggest that TCL-SPION can be useful as a carrier of therapeutic reagents to treat diseases by persisting for long periods of time in the body.  相似文献   

纤维改性剂HBP-NH_2的制备及在真丝织物活性染料无盐染色中的应用     

蒋小云  王成龙  吴靖  余志成 《蚕业科学》2012,(5):873-878

制备不同端氨基超支化聚合物(HBP-NH2)用于真丝纤维改性,提高真丝织物用活性染料进行无盐染色的上染率和染色牢度。以二乙烯三胺与丙烯酸甲酯为原料,改变合成单体的反应时间(0～6 h),制备出不同的端氨基超支化聚合物HBP-NH2(0)～HBP-NH2(6)。通过红外光谱和氨基含量测试证明HBP-NH2中含有大量的氨基和亚氨基等碱性基团,热重分析显示HBP-NH2具有较好的热稳定性。将制备的7种HBP-NH2分别用于真丝织物的改性,改性后的真丝织物在以活性染料进行的无盐染色试验中,表现出较好的染色性能,其中以HBP-NH2(5)改性后的真丝织物具有较高的染色K/S值和较好的色牢度。将HBP-NH2作为真丝纤维改性剂,可以实现用活性染料对真丝织物进行无盐染色的目标。  相似文献   

Development and characterization of microsatellite markers for turmeric (Curcuma longa)     

M. S. Sigrist  J. B. Pinheiro  J. A. Azevedo‐Filho  C. A. Colombo  M. M. Bajay  P. F. Lima  F. R. Camilo  S. Sandhu  A. P. Souza  M. I. Zucchi 《Plant Breeding》2010,129(5):570-573

  相似文献   

预处理对尾巨桉单板染色性能的影响     

云虹  胡传双 《广东林业科技》2010,26(2):17-21

采用乙醇处理、碱处理和热水处理三种方式对尾巨桉单板进行预处理,由正交试验确定最佳染色工艺并在最佳染色工艺条件下对预处理单板进行染色,然后对染色单板的着色性能、耐光色牢度及耐水色牢度进行测定。结果表明：正交试验确立的最佳染色工艺为染液温度70℃、染色处理时间45 m in和酸性蓝浓度0.2%,其中染液温度是影响染色效果的最主要因素;三种预处理方法能够提高尾巨桉单板的渗透性并对着色性能影响不大,同时会使染色处理材的耐光性小幅下降;三种预处理方式对染色材的耐水色牢度有较好的促进作用,其中热水处理最好,乙醇处理次之,而碱处理最差。  相似文献   

浅议天然植物染料现状及发展方向   总被引：1，自引：0，他引：1  

李漠 《北京农业》2010,(6)

我国染料植物资源丰富,植物染料染色技术在我国历史悠久。与化学合成染料相比,天然植物染料安全无毒,具环保效应,其中一些还兼有抗菌、防紫外线作用,适合于开发新功能型纺织品。但其生产应用还存在染料供应难、重现性及染色牢固度差等问题,需要加强研究开发,运用现代科学技术手段选育、培育出具有良好前景的染料植物并改进传统工艺,在保护植物资源前提下,推进天然植物染料生产体系的发展。  相似文献   

Dyeing properties and colour fastness of wool dyed with indicaxanthin natural dye     

A. Guesmi  N. Ben HamadiN. Ladhari  F. Sakli 《Industrial Crops and Products》2012,37(1):493-499

This research work involves the dyeing of wool with indicaxanthin, a natural dye extracted from fruits of Opuntia ficus-indica. The optimal conditions for dye extraction were to mix 50 g of Juice from cactus pears with 100 mL of 80% aqueous ethanol as solvent for dye extraction. Liquid chromatography was applied for the separation. Two main dyes were obtained, which were identified as indicaxanthin (75 mg per 50 g) and betanin (5 mg per 50 g). The effect of dye bath pH, salt concentration, dyeing time and temperature were studied. The optimal conditions for wool dyeing with indicaxanthin dye were carried out at 70 °C for 90 min with the pre-treatment of various metal salts as mordant. The colour yields of the dye on the wool were found to be highly dependent of the pH, optimum results being obtained at pH 4. The K/S of wool increased in the order of the dyeing using KAl (SO₄)₂ > MnSO₄ > CoSO₄ > FeSO₄ > none > ZnSO₄ > CuSO₄. Un-mordanted samples have good properties of water and washing fastness. Mordants KAl (SO₄)₂ and CoSO₄ were found to give good light fastness (rating 5).  相似文献