Spray dry-microencapsulation of feruloyl esterase-producing Lactobacillus strains

ROSS G.R.; GAUFFIN CANO,M. P; SANTACRUZ A.; MEDINA R B; ABEIJÓN MUDKSI, M. C; JIMÉNEZ-MUNGÍA MT

San Miguel de Tucumán

Simposio; V Simposio Internacional de Bacterias Lácticas; 2016

Centro de Referencia para Lactobacilos (CERELA) - CONICET

Feruloyl esterases (FE) are enzymes responsible for the release of ferulic acid (FA), naturally present in vegetable foods as non-digestibleester-linked forms. FA has antioxidant properties and its consumption has shown to exert beneficial effects in pathologies related to oxidative stress, such as metabolic syndrome and obesity. In this context, probiotic FE-producing bacteria can be used as dietary supplements or incorporated into functional foods. Spray-dry microencapsulation is an efficient method for protecting probiotic strains during food processing and storage, as well as gastrointestinal tract (GIT) transit. The aim of this study was to optimize the spray-dry encapsulation of FE-producing Lactobacillus strains, evaluated their viability and FE activity after spraying, during refrigerated storage and their resistance to GIT conditions