Lactobacillus delbrueckii subsp. bulgaricus CRL 454 cleaves allergenic peptides of beta-lactoglobulin
Whey, a cheese by-product used as a food additive, is produced worldwide at 40.7 million tons per year.b-Lactoglobulin (BLG), the main whey protein, is poorly digested and is highly allergenic. We aimed to study the contribution of Lactobacillus delbrueckii subsp. bulgaricus CRL 454 to BLG digestion...
| Autores: | , , , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2015 |
| País: | Argentina |
| Institución: | Consejo Nacional de Investigaciones Científicas y Técnicas |
| Repositorio: | CONICET Digital (CONICET) |
| Idioma: | inglés |
| OAI Identifier: | oai:ri.conicet.gov.ar:11336/102107 |
| Acceso en línea: | http://hdl.handle.net/11336/102107 |
| Access Level: | acceso abierto |
| Palabra clave: | β-LACTOGLOBULIN WHEY LACTIC ACID BACTERIA LACTOBACILLUS https://purl.org/becyt/ford/2.9 https://purl.org/becyt/ford/2 |
| Sumario: | Whey, a cheese by-product used as a food additive, is produced worldwide at 40.7 million tons per year.b-Lactoglobulin (BLG), the main whey protein, is poorly digested and is highly allergenic. We aimed to study the contribution of Lactobacillus delbrueckii subsp. bulgaricus CRL 454 to BLG digestion and to analyse its ability to degrade the main allergenic sequences of this protein. Pre-hydrolysis of BLG by L. delbrueckii subsp. bulgaricus CRL 454 increases digestion of BLG assayed by an in vitro simulated gastrointestinal system. Moreover, peptides from hydrolysis of the allergenic sequences V41-K60, Y102-R124, C121-L140 and L149-I162 were found when BLG was hydrolysed by this strain. Interestingly,peptides possessing antioxidant, ACE inhibitory, antimicrobial and immuno-modulating properties were found in BLG degraded by both the Lactobacillus strain and digestive enzymes. To conclude, pre-hydrolysis of BLG by L. delbrueckii subsp. bulgaricus CRL 454 has a positive effect on BLG digestion and could diminish allergenic reactions. |
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