The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 11, 2017
Filed:
Nov. 18, 2015
Zhaoqing Dahuanong Biological Medicine Co., Ltd, Zhaoqing, CN;
South China Agricultural University, Guangzhou, CN;
Ruiai Chen, Zhaoqing, CN;
Jiahua Xu, Zhaoqing, CN;
Xinqiu Wang, Zhaoqing, CN;
Dongxia Zhang, Zhaoqing, CN;
Beibei Sun, Zhaoqing, CN;
Xiaoyu Xie, Zhaoqing, CN;
Changbao Ren, Zhaoqing, CN;
Zhaoqing Dahuanong Biological Medicine Co., Ltd, Zhaoqing, CN;
South China Agricultural University, Guangzhou, CN;
Abstract
The invention discloses an avian infectious bronchitis virus purification method. The method uses ordinary avian embryo which was affected by avian bronchitis virus. Using the combination of centrifugation, ultrafiltration, concentration, molecular sieve chromatography and ultrafiltration method can effectively remove miscellaneous protein in embryo-derived infectious bronchitis virus antigen, high virus recovery, and have no effect on the activity of avian infectious bronchitis virus. The avian infectious bronchitis virus purified by this method can be directly used in the preparation of avian infectious bronchitis virus vaccine.