The present invention relates to the field of immunology, specifically the branch of adjuvants and vaccines. The technical objective is to obtain adjuvants based on cochlear structures that are neither proteolipidic nor lipidic and that contain microbe-associated molecular patterns (MAMPs) and have the optional addition of antibiotics/chemotherapeutic agents with the aim of using them as vaccine adjuvants for the treatment and prevention of veterinary and human diseases. Additionally, these would be used as immunopotentiators in veterinary and human formulations. It is also a technical objective of this patent to utilize the said new cochlear structures with particular antigens added or liberated in vivo for the combined effect of immunopotentiation and antibiotics/chemotherapeutic agents in infectious diseases to obtain therapeutic vaccines for veterinary and human use in the pharmaceutical industry. The invention also relates to the method for obtaining sterile cochlear structures.