The father of the modern frozen food industry
thehustle.co
thehustle.co
Actually the name (in slightly different form) is probably reasonably familiar to many people even if they don't know it was a person given that Birds Eye is a big international brand of frozen food, vegetables in particular.
Also look into gamma irradiation.
Finally, for shelf life, sterilization by autoclave (ie: pressure cooker).
Lyophilization never really took off outside of pharma except for some ice cream products.