Company Filing History:
2 out of 2 
2 out of 24 Years Active: 2022-2024
Title: Innovations in Bioengineering: The Achievements of Yuanqing Ji
Introduction
Yuanqing Ji, an accomplished inventor based in Tianjin, China, has significantly contributed to the field of bioengineering through his innovative methodologies for the production of L-theanine. With two patents to his name, Ji exemplifies the pioneering spirit in the realm of biotechnology.
Latest Patents
Yuanqing Ji's latest patents focus on the fermentation production of L-theanine using genetically engineered bacteria. The first patent outlines a method utilizing a strain obtained after several genetic modifications, including a single copy of T7RNAP and dual copies of gmas, as well as crucial knockouts in the xylR and sucCD genes on the W3110 genome. This engineered bacterium achieves remarkable yields and stability in production, producing L-theanine with a titer of 75-80 g/L over 20-25 hours, and a total yield of 52-55%. Furthermore, the purification process uses a combination of membrane separation and cation-anion resin techniques, culminating in a one-step crystallization yield of 72.3%, and a final product purity of 99%.
Career Highlights
Throughout his career, Yuanqing Ji has worked with prominent organizations, including Henan Julong Biological Engineering Co., Ltd and Tianjin University of Science and Technology. His background encompasses both practical and theoretical frameworks that enhance the understanding and application of bioengineering processes.
Collaborations
Collaborating with fellow researchers like Xiaoguang Fan and Xiaodong Liu, Yuanqing Ji has leveraged collective expertise to advance research goals in the area of L-theanine production. These partnerships have fostered a robust environment for innovation, ultimately benefiting the broader bioengineering community.
Conclusion
Yuanqing Ji's contributions to bioengineering through his patents on L-theanine production represent significant advancements in the field. His unique methodologies not only enhance production efficiency but also reflect the potential of genetic engineering in developing valuable bioproducts. As the industry evolves, inventors like Ji continue to lead the way in innovative solutions that address growing demands in biotechnology.