私密直播全婐app免费大渔直播,国产av成人无码免费视频,男女同房做爰全过程高潮,国产精品自产拍在线观看

相關(guān)鏈接
聯(lián)系方式
  • 通信地址:浙江省臺(tái)州市椒江區(qū)市府大道1139號(hào)生命科學(xué)大樓D樓環(huán)境工程技術(shù)研究所
  • 郵編:318000
  • 電話:0576
  • 傳真:
  • Email:zhuhuayue@126.com
當(dāng)前位置:> 首頁 > 論文著作 > 正文
1. Structural characterization and antimicrobial activity of chitosan/betaine derivative complex
作者:Hui Liu, Yumin Du, Jianhong Yang, Huayue Zhu
關(guān)鍵字:Chitosan; Betaine derivative; Complex; Antimicrobial activity
論文來源:期刊
具體來源:Carbohydrate Polymers
發(fā)表時(shí)間:2004年

Complex of chitosan acetate (CSAC) with C12–C18 alkyl amido prophyl dimethylamine betaine (AAPDB) was prepared and characterized by Fourier transform-infrared (FT-IR), thermal analysis (TG, DTG and DSC), X-ray diffractogram. Results showed that complex formed mainly by the electrostatic interaction between NH3t of CSAC and COO2 of AAPDB. Minimum inhibitory concentrations (MICs) were evaluated against E. coli ATCC 25922, Pseudomonas aeruginosa ATCC 27853, Staphylococcus aureus ATCC 25923, Staphylococcus epidermidis and Candida albicans. Results showed that CS/AAPDB solution could or even more strongly inhibit growth of  all the tested microorganisms, whereas CSAC could not inhibit growth of C. albicans and AAPDB could not inhibit growth of S. epidermidis, E. coli, P. aeruginosa. Relative inhibition times (RITs) of CS/AAPDB solutions with different concentration and ratio of CSAC and AAPDB were also investigated against the five microorganisms. Results showed that CS/AAPDB solutions with CCSAC t CAAPDB of 0.05% t 0.015%, 0.05% t 0.0075%, and 0.025% t 0.0075% showed higher antimicrobial activity. The relationship between complex formation and antimicrobial activity was discussed.

主站蜘蛛池模板: 积石山| 陆川县| 芜湖市| 筠连县| 咸阳市| 上高县| 濉溪县| 滨海县| 绩溪县| 那坡县| 宁城县| 澄迈县| 广南县| 凉城县| 宜春市| 加查县| 新疆| 海盐县| 石门县| 大化| 绥滨县| 沅陵县| 河间市| 马公市| 衡南县| 唐河县| 化州市| 石阡县| 鹤庆县| 潜江市| 云林县| 大足县| 安阳县| 昌江| 望城县| 乌鲁木齐县| 新巴尔虎左旗| 蛟河市| 观塘区| 永泰县| 汉川市|