Xiuzhen Du

Title: Innovations of Xiuzhen Du in Bioengineering

Introduction

Xiuzhen Du is a prominent inventor based in Nanjing, China. He has made significant contributions to the field of bioengineering, particularly in the development of enzyme variants that enhance industrial processes. With a total of 2 patents, his work has implications for various applications in the starch industry.

Latest Patents

One of Xiuzhen Du's latest patents is an α-amylase variant and its use. This invention involves an α-amylase variant obtained through the mutation or deletion of at least one amino acid residue in the amino acid sequence of a parent α-amylase. The variant maintains the capability of the parent enzyme to hydrolyze α-1,4 glycosidic bonds, with an amino acid sequence homology of 95% or more. The series of α-amylase variants provided exhibit relatively high catalytic activity under acidic conditions of pH 5.0 and at high temperatures of at least 100°C.

Another significant patent is related to truncated pullulanases, which have an N-terminal deletion in a parental pullulanase. These truncated pullulanases demonstrate altered properties compared to the parental enzyme, including an increased saccharification rate and higher catalytic activity at acidic pH values below 4.5 and temperatures up to 64°C. Additionally, these truncated pullulanases show improved thermal stability. The patent also describes compositions containing the truncated pullulanases and glucoamylase, along with processes for their application in the starch industry.

Career Highlights

Xiuzhen Du is associated with Nanjing Bestzyme Bio-engineering Co., Ltd., where he continues to innovate and develop new biotechnological solutions. His work has been instrumental in advancing enzyme technology, which is crucial for various industrial applications.

Collaborations

Xiuzhen Du collaborates with notable colleagues, including Yan Fan and Feng Li. These partnerships enhance the research and development efforts within the company, fostering innovation in enzyme engineering.

Conclusion

Xiuzhen Du's contributions to bioengineering through his patents and collaborations highlight the importance of innovation in the field. His work not only advances scientific knowledge but also has practical applications in the industry.