3. Conclusion

One of the major challenges facing the chemical, pharmaceutical and cosmetics industries in the 21st century is to replace synthetic and petroleum-based derivatives with new renewable, non-toxic, biodegradable raw materials derived from agro-resources. Today's pharmaceutical industry is therefore in great demand for biosourced excipients, which must be at least as functional as, if not superior to, petrochemical or synthetic derivatives, without being harmful from an environmental point of view. But these new excipients must also be able to meet the demands for innovation that go hand in hand with technological advances (eco-responsible chemistry, sustainable processes) and medical advances (nanomedicine, development of mucosal pathways...). As demonstrated in this article, plant lipids and proteins offer a wide range of properties that can be used to create excipients with multiple biopharmaceutical...