Gamma-aminobutyric Acid (GABA) is a kind of non-protein amino acid widely existing in animals, plants and microorganisms. It has a variety of physiological functions in human body, including regulating nerve conduction, lowering blood pressure, improving sleep, etc. Therefore, it is widely used in the field of health and cosmetics. Ministry of Health of the People's Republic of China Announcement No. 12 in 2009, according to the provisions of the "Food Safety Law of the People's Republic of China" and the "New resource food Management Measures", approved gamma-aminobutyric acid as a new resource food.

In cooperation with Jiangnan University, Hanhe Biology is the first in the world to use Bacillus subtilis as chassis bacteria, whole-cell transformation production, and the activity is 40% higher than other processes. In September 2022, the National Ministry of Industry and Information Technology issued an announcement, and Hanhe Biology served as the deputy leader of the drafting unit of the gamma-aminobutyric acid industry standard (QB/T5633.7-2022) was officially implemented in April 2023.