Chemical characterization of oil from four Avocado varieties cultivated in Morocco Chaimae Nasri, Yasmina Halabi, Hicham Harhar, Faez Mohammed, Abdelkabir Bellaouchou, Abdallah Guenbour and Mohamed Tabyaoui OCL, 28 (2021) 19 Published online: 11 March 2021 DOI: 10.1051/ocl/2021008