关键词: 琼脂糖, 提取方法, 低电内渗, 低凝固温度, agarose, extraction methods , low electroosmosis, low freezing point

Abstract: This paper reviews the comparison of different agarose extraction methods, mainly in principle, operation process and quality indicators. The results indicate that the EDTA-Na2 method and the DEAE cellulose method is more well than other extraction methods. It also points out the problems existing in the extraction process. This paper introduces two common agarose modified product too, mainly introduces the modification of the product principle and extraction method and so on, so as to further study the derivatives of agarose providing theoretical supports.