Poul Johansen

Title: Innovations by Poul Johansen

Introduction

Poul Johansen is a notable inventor based in Virum, Denmark. He has made significant contributions to the field of biochemistry, particularly in the area of protein purification. His innovative methods have the potential to impact various applications in biotechnology and medicine.

Latest Patents

Poul Johansen holds a patent for a method for the removal of viruses from a protein solution. The patent describes a process where cysteine protease inhibitors are separated and purified from new gingers. The extraction involves using a neutral buffer followed by heat treatment at 80°C for 10 minutes. After centrifugal separation, the supernatant is treated with acetone, leading to the precipitation of fractions at an acetone concentration of 55-77%. These fractions are then purified using a chromatographic column of DEAE-cellulose and Sephadex G-75 gel. The results indicate the presence of two cysteine protease inhibitors with molecular weights of 11,000-11,800 and 15,500-16,000, which exhibit strong inhibition of papain. However, these inhibitors do not possess high heat stability.

Career Highlights

Poul Johansen is currently associated with Novozymes A/S, a leading company in the field of biotechnology. His work at Novozymes focuses on developing innovative solutions that enhance the efficiency of various biological processes. His expertise in protein purification has been instrumental in advancing the company's research initiatives.

Collaborations

Poul Johansen collaborates with Cecilia Jansson Kepka, contributing to the advancement of their shared research goals. Their partnership exemplifies the importance of teamwork in scientific innovation.

Conclusion

Poul Johansen's contributions to the field of biochemistry through his innovative patent and work at Novozymes A/S highlight the significance of research in developing effective solutions for protein purification. His work continues to pave the way for advancements in biotechnology.