Adel Penhasi
Baghiyatallah University, Iran
Title: Stabilization of probiotic bacteria using a novel microencapsulation system especially designed for infant formula (IF)
Biography
Biography: Adel Penhasi
Abstract
Powdered infant formula (PIF) is not a sterile product as the guidelines by the FAO/WHO point out. Th e presence of pathogenscan present a challenge to young infants, consequently while preparing PIF extra precautions need to be taken. PIF is currentlyprepared at room temperature and thus the activity of pathogenic bacteria is maintained. According to WHO guidelines, PIFshould be prepared at 70°C in order to destroy any contaminant which may exist in PIF. However, at this temperature, probiotic bacteria which may be contained in PIF may also be destroyed thus the advantages of probiotics will not be manifested.
PolyCaps has developed a unique microencapsulation technology which protects probiotic bacteria (PB) against hot water (70°C)during reconstitution of PIF in accordance with the new WHO guidelines. Harmful pathogens will of course be destroyed ordisactivated. Th e microcapsules are designed to dissolve immediately aft er cooling the liquid to feeding temperature releasing the alive PB. Additionally, the microencapsulation system ensures a low water activity (aw) and protects the PB which allows a high viability and an extended shelf life.
The microencapsulation system consists of an inner core containing PB and other ingredients, which is further surrounded by a unique 2-layer coating comprising at least one smart polymer. Th e latter forms a solid gel when heated, thereby preventing the transition of heat and water to the PB in the core. However, the solid gel layer dissolves aft er cooling to feeding temperature, allowing live PB to be released in the liquid.