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Vacuum-assisted biosorption for developing combined delivery formulations of live probiotics and plant-phenolic compounds and their in-vitro evaluation

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Autor(es):
da Silva, Marluci Palazzolli ; Rai, Rewa ; Favaro-Trindade, Carmen S. ; Nitin, Nitin
Número total de Autores: 4
Tipo de documento: Artigo Científico
Fonte: FOOD BIOSCIENCE; v. 54, p. 10-pg., 2023-06-23.
Resumo

This study focused on developing novel compositions for the simultaneous delivery of probiotics and phenolic bioactives. These novel compositions were generated by biosorption of phenolic-rich plant extracts produced using jabuticaba peel, guaran & PRIME;a seed, and pure catechin in three probiotic strains using vacuum-assisted and passive incubations. Vacuum-assisted biosorption using jabuticaba peel in 25% of ethanol solution (JP25%) provided the maximum loading of phenolic compounds (PC), around 9 mg Gallic Acid Equivalent (GAE)/g of cells in less than 5 min without significantly influencing probiotic cell viability. In contrast, the total phenolic content of probiotic cells loaded with guaran & PRIME;a seed extract (GSE) and catechin solution ranged between 3.5 and 5 mg GAE/g of cells. The PC content of probiotic cells using vacuum-assisted biosorption was around 2-4 fold higher than that obtained via passive biosorption for 24 h. The biosorption of PCs in probiotic cells was also confirmed by multiphoton microscopy. The viability of freeze-dried cells at 25 degrees C up to 30 days loaded with plant extracts by vacuum assisted biosorption was 1-2 log CFU/g higher than cells passively loaded with plant extracts. Furthermore, PC release from Lacticaseibacillus cells ranged between 55% and 75% of biosorbed PCs during simulated gastrointestinal digestions. Overall, this study illustrates a novel approach to formulate combination of probiotics and PCs and their potential to deliver viable probiotics and bioactive PCs. (AU)

Processo FAPESP: 16/24895-5 - Coencapsulação dos extratos do guaraná (Paullinia cupana) e probióticos
Beneficiário:Marluci Palazzolli da Silva Padilha
Modalidade de apoio: Bolsas no Brasil - Doutorado
Processo FAPESP: 19/09757-3 - Encapsulação usando células como carreador: infusão de extratos vegetais
Beneficiário:Marluci Palazzolli da Silva Padilha
Modalidade de apoio: Bolsas no Exterior - Estágio de Pesquisa - Doutorado