Hongjuan Chao

Title: Innovations of Hongjuan Chao in Xanthophyll Crystal Preparation

Introduction

Hongjuan Chao is a notable inventor based in Zhejiang, China. She has made significant contributions to the field of biochemistry, particularly in the preparation of xanthophyll crystals. Her innovative methods have the potential to enhance the efficiency of extracting valuable compounds from plant sources.

Latest Patents

Hongjuan Chao holds a patent for a method titled "Preparing method for xanthophyll crystals with higher content of zeaxanthin from plant oleoresin." This invention presents a novel approach to obtaining xanthophyll crystals that are rich in zeaxanthin. The method involves mixing xanthophyll diester-containing plant oleoresins with food-grade alcohol solvents to create a smooth solution. The process includes soap-dissolving the solution in an alkaline environment, followed by the addition of organic solvents and emulsifiers. This innovative technique allows for the transformation of some xanthophyll crystals into zeaxanthin through an epimerization reaction. The final steps involve separating the crystals and purifying them to achieve a high collection rate of both xanthophyll and zeaxanthin.

Career Highlights

Hongjuan Chao is associated with Zhejiang Medicine Co., Ltd., specifically at the Xinchang Pharmaceutical Factory. Her work in this company has been instrumental in advancing the methods of extracting and purifying valuable compounds from natural sources.

Collaborations

Hongjuan has collaborated with notable colleagues, including Xinde Xu and Bin Shao. These partnerships have contributed to the development and refinement of her innovative methods.

Conclusion

Hongjuan Chao's contributions to the field of xanthophyll crystal preparation demonstrate her commitment to innovation and efficiency in biochemistry. Her patented method not only enhances the extraction process but also holds promise for future applications in the industry.