Abstract：Gracilaria Gigas Harvey Polysaccharides (GHPS) were extracted with hot water and sedimentated with ethanol. The amount of polysaccharides was determined by phenol-H2SO4 method. The mineral elements and molecular configuration were analysed by inductively coupled plasma (ICP) and infrared absorption spectrum (IR). The rate of distillation was 14.98%, the amount of polysaccharides was 78.2%, and GHPS contained manifold mineral elements (Ca, Fe, Mg and S). The IR spectra manifested that the extraction was a compound of polysaccharides, i.e. acidic polysaccharides.
Key words：Gracilaria gigas Harvey polysaccharides;Extraction;Analysis of spectrum
[1] CHEN Hui-li, LI Mao-shen, ZHU Yun-song(陈惠黎，李茂深，朱运松). Structure and Function of Bio-Molecule(生物大分子的结构和功能). Shanghai: Shanghai Medical University Press(上海：上海医科大学出版社)，1999. 331. [2] CHEN Hong-liang, LI Bo-tao, ZHANG Jia-xiang, et al(陈洪亮, 李伯涛, 张家祥, 等). Chinese Pharmacological Bulletin(中国药理学通报)，2002, 18(1)：249. [3] Dias PF, Siqueira J M Jr, Vendruscolo L F, et al. Cancer Chemother Pharmacol.，2005, 56(4): 436. [4] Damonte E B, Matulewicz M C, Cerezo A S. Curr. Med. Chem., 2004, 11(18): 2399. [5] LIN Wei-liang(林位琅). Modern Fisheries Information(现代渔业信息), 2002, 17(6): 26. [6] LIU Hui-yan, ZHAO Mou-ming(刘慧燕，赵谋明). Science and Technology of Food Industry(食品工业科技)，2005，26(3)：67. [7] ZHANG Wei-jie(张惟杰). Biochemical Technique of Compound Polysaccharides(复合多糖生化研究技术). Hangzhou: Zhejiang University Press(杭州: 浙江大学出版社), 1987. [8] LI Jiang-wu(李建武). Experimental Principles and Methods of Biochemics(生物化学实验原理和方法). Beijing: Peking University Press(北京：北京大学出版社)，1994. 300. [9] CHEN Jun, YAO Cheng, OUYANG Ping-kai, et al(陈 军，姚 成，欧阳平凯，等). Spectroscopy and Spectral Analysis(光谱学与光谱分析), 2005, 25(4)：560. [10] LI Dong-xia, ZHANG Shuang-quan, LIU Ping(李东霞, 张双全, 刘 平). Spectroscopy and Spectral Analysis(光谱学与光谱分析), 2002, 22(1): 59. [11] Silva T M A, Alves L G, de Queiroz K C S, et al. Braz. J. Med. Res., 2005, 38(4): 523. [12] MENG Qing-yong, LIU Zhi-hui, XU Mei-yi, et al(孟庆勇，刘志辉，徐美奕，等). Spectroscopy and Spectral Analysis(光谱学与光谱分析)，2004，24(12)：1560. [13] ZHANG Sai-jin, LI Wen-quan, DENG Yong-zhi(张塞金，李文权，邓勇智). Journal of Xiamen University(厦门大学学报), 2005, 44: 212. [14] YANG Ke-di(杨克敌). The Trace Elements and Health(微量元素与健康). Beijing: Science Press(北京：科学出版社)，2003. [15] HE Feng-ga, Hasenqimeng(贺锋嗄，哈森其木格). Spectroscopy and Spectral Analysis(光谱学与光谱分析)，2006，26(2)：321.
