Bonjour Khelifa

tu appelles Sihem Akmouci, elle maitrise trés bien la technique.

Salutations

Dear khelifa;

for more advice you should be addressed to Prof Youcef Gargouri, he have a good experience on lipases, with this link:

https://www.researchgate.net/profile/Youssef_Gargouri

and Prof Adel Sayari, he have also a good experience on lipases, with this link:

https://www.researchgate.net/profile/Adel_Sayari

good luck