Gilbert Ghostine, the CEO of Swiss group Firmenich, one of the world's leading flavour manufacturers, poses at the company's headquarters in Satigny near Geneva on June 30, 2021. - Vegetarian steaks are popping up in supermarkets, but how do you replicate the taste of beef in products made with pea, soy, black bean, sweet potato or beetroot protein? Partly thanks to artificial intelligence, says Firmenich, which is advising and supplying the host of start-ups and food giants that have set their sights on this rapidly expanding market. (Photo by Fabrice COFFRINI / AFP)