首页
产品
黄页
商标
征信
会员服务
注册
登录
全部
|
企业名
|
法人/股东/高管
|
品牌/产品
|
地址
|
经营范围
发明名称
一种从发酵液中直接提取聚羟基烷酸酯的一步分离法
摘要
本发明公开了一种从含有聚羟基烷酸酯的细胞发酵液中直接提取聚羟基烷酸酯一步分离提取法。本发明属生物工程技术领域。其主要特征是在以真养产碱杆菌发酵生产聚羟基烷酸酯(PHAs)的发酵液中,直接加入表面活性剂、次氯酸钠和变形剂,改变了PHAs颗粒的聚集状态,通过普通三足式离心机或过滤即可分离提取PHAs颗粒,再经洗涤烘干后,可获得纯度大于95%、分子量3.0×10<SUP>5</SUP>以上的PHAs颗粒,提取收率80%左右。
申请公布号
CN1328160A
申请公布日期
2001.12.26
申请号
CN00109156.5
申请日期
2000.06.13
申请人
中国科学院微生物研究所
发明人
翁维琦;蔡以滨;刘墨青;易祖华;陈琦
分类号
C12P7/62;C08G63/66
主分类号
C12P7/62
代理机构
代理人
主权项
1、一种从发酵液中直接提取聚羟基烷酸酯的一步分离法,其特征在于以下步骤组成:(1)、在含有聚羟基烷酸酯的细胞发酵液中,调节发酵液PH值后,加入阴离子表面活性剂,搅拌反应。(2)、在上述反应体系中加入次氯酸钠、变形剂,搅拌反应。(3)、分离提取固相的聚羟基烷酸酯PHAs颗粒。(4)、用水洗涤、干燥得到粉末状聚羟基烷酸酯产品。
地址
100080北京市海淀区中关村北一条13号
您可能感兴趣的专利
REMOVAL OF PHYTATE
HIGH PRESSURE GAS STORAGE
YARN FEEDING DEVICE
DUAL INHIBITOR COMPOUNDS FOR USE IN THE TREATMENT OF NEURODEGENERATIVE DISORDERS AND ALZHEIMER'S DISEASE
MOBILE TERMINAL AND CONTROL SYSTEM
GUN CONTROL UNIT WITH COMPUTERIZED MULTI-FUNCTION DISPLAY
METHOD FOR LOCATING A DEVICE AND A MOBILE LOCATOR DEVICE
POLYMER-BASED NANOSTRUCTURED MATERIALS WITH TUNABLE PROPERTIES AND METHODS OF MAKING THEREOF
AFFINITY MEDICANT CONJUGATES
BLACK FRAME INSERTION METHOD FOR PIXELS OF 3D DISPLAY AND CIRCUIT USING THE METHOD
SHROUDED ROOF VENT FOR A VEHICLE
A PARALLEL KINEMATIC MANIPULATOR SYSTEM AND CONTROL METHOD THEREFOR
ACANTHOSPERMUM HISPIDUM COMPOSITION FOR THE TREATMENT OF CANCER AND METHODS FOR ITS MANUFACTURE
VIEWPOINT SYNTHESIS PREDICTION DEVICE, IMAGE DECODING DEVICE, AND IMAGE CODING DEVICE
COMPOSITIONS AND METHODS TO TREATING HEMOGLOBINOPATHIES
CAMERA SENSOR WITH EVENT TOKEN BASED IMAGE CAPTURE AND RECONSTRUCTION
OCCUPANT SENSING AND CLASSIFICATION SYSTEM
METHODS OF ADMINISTERING METHYLNALTREXONE
METHOD AND DEVICE FOR REGULATING THE CONCENTRATION OF OXYGEN IN A REACTOR FACILITY, AND NUCLEAR REACTOR FACILITY
DEVICE AND METHOD FOR EVALUATION OF A MATERIAL