After finishing his studies at Ecole Polytechnique in Paris in 1967, Alain Rambach joins the Pasteur Institute where he works with professor François Jacob, the Nobel prize winner in the field of genetics.

In 1973, after finishing his thesis in bacterial genetics, Alain Rambach has embarked onto 'manipulation of genes', despite the strong initial opposition from the scientific community. Later on, this field had become the well-known genetic engineering.

After 2 years at Stanford University as a postgraduate in biochemistry, he returns and in 1976 rejoins the Pasteur Institute as one of the leading scientists in the field of genetic engineering.

In an unrelated field in 1979, he pioneered, invented and patented a system for detecting the E.coli bacteria using 'chromogenic differentiation' culture media.

In 1980 he starts a new company Genetica as a joint venture with Rhône Poulenc. Genetica has been involved in genetic engineering and became one of the leading R&D companies in the field of pharmaceutical fermentation process.

After Rhône Poulenc integrated Genetica into its structure, Dr. Alain Rambach decided to pursue his goal and devout his talent and energy to develop another invention. In 1989 he patented a 'chromogenic' system for detection of the Salmonella pathogen, known in Europe as the Rambach Agar.

He continues to establish and develop his company CHROMagar, applying his patented methods of chromogenic differentiation of various species, utilizing a specific method for each of its kind.

CHROMagar chromogenic media has become a trademark of simplified and yet highly scientific method of chromogenic differentiation of pathogens. It has become an innovative breakthrough method in microbiological testing in France and worldwide.