This special topic issue of 'Annales Nestlé' contains contributions discussing the subject in-depth. 'Annales Nestlé' is a well-respected, international peer-reviewed journal. Special topic issues are included in the subscription. This special topic issue of 'Annales Nestlé' contains contributions discussing the subject in-depth. 'Annales Nestlé' is a well-respected, international peer-reviewed journal. Special topic issues are included in the subscription.