Patents by Inventor Yanfei Zhong

Yanfei Zhong has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method for post-extracting low acyl gellan gum with high solubility
    Patent number: 8652549
    Abstract: The invention relates to a post-extraction process for preparing low acyl gellan gum having high solubility property, the process comprising the following steps: (1) enzyme treatment of fermentation broth; (2) flocculation of fermentation broth; (3) deacylation treatment; (4) clarification treatment of deacylated solution; (5) dehydration treatment of clarified and deacylated gellan gum solution; (6) ion exchange and decoloration treatment; and (7) drying and milling. The process according to the invention produces a product, which has largely improved solubility, largely improved quality, good appearance, high transparence, and high gel strength.
    Type: Grant
    Filed: June 2, 2010
    Date of Patent: February 18, 2014
    Assignee: Zhejiang DSM Zhongken Biotechnology Co., Ltd.
    Inventors: Rongming Wu, Yanfei Zhong, Qi Guo, Yueqiang Shen, Liping Shen
  • Method for Post-Extracting Low Acyl Gellan Gum with High Solubility
    Publication number: 20110268843
    Abstract: The invention relates to a post-extraction process for preparing low acyl gellan gum having high solubility property, the process comprising the following steps: (1) enzyme treatment of fermentation broth; (2) flocculation of fermentation broth; (3) deacylation treatment; (4) clarification treatment of deacylated solution; (5) dehydration treatment of clarified and deacylated gellan gum solution; (6) ion exchange and decoloration treatment; and (7) drying and milling. The process according to the invention produces a product, which has largely improved solubility, largely improved quality, good appearance, high transparence, and high gel strength.
    Type: Application
    Filed: June 2, 2010
    Publication date: November 3, 2011
    Applicant: ZHEJIANG DSM ZHONGKEN BIOTECHNOLOGY CO., LTD.
    Inventors: Rongming Wu, Yanfei Zhong, Qi Guo, Yueqiang Shen, Liping Shen