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TitleHydrolysates containing xylooligosaccharides produced by different strategies: structural characterization, antioxidant and prebiotic activities
Author(s)Gautério, Gabrielle Victoria
Amorim, Cláudia Catarina Oliveira
Silvério, Sara Isabel Cruz
Cardoso, Beatriz B.
Ballesteros, Lina F.
Alves, Joana I.
Pereira, M. A.
Silva, Soraia P.
Coelho, Elisabete
Coimbra, Manuel A.
Kalil, Susana Juliano
Rodrigues, L. R.
KeywordsAntioxidant activity
Enzymatic hydrolysis
Human fecal inocula
Microbial fermentation
Issue date15-Oct-2022
JournalFood Chemistry
CitationGautério, Gabrielle; Amorim, Cláudia; Silvério, Sara C.; Cardoso, B.; Ballesteros, Lina F.; Alves, Joana I.; Pereira, M. Alcina; Silva, Soraia P.; Coelho, Elisabete; Coimbra, Manuel A.; Kalil, Susana Juliano; Rodrigues, Lígia R., Hydrolysates containing xylooligosaccharides produced by different strategies: Structural characterization, antioxidant and prebiotic activities. Food Chemistry, 391(133231), 2022
Abstract(s)This study explores the structural characterization, antioxidant and prebiotic activities of hydrolysates containing xylooligosaccharides (XOS) produced by different strategies: direct fermentation of beechwood xylan (FermBX) and enzymatic treatment of beechwood (EnzBX) and rice husk (EnzRH) xylans. EnzBX and EnzRH showed XOS with a backbone of (1 4)-linked-xylopyranosyl residues and branches of arabinose, galactose, and uronic acids. FermBX presented the highest content of total phenolic compounds (14 mg GAE/g) and flavonoids (0.6 mg QE/g), which may contribute to its antioxidant capacity 39.1 mol TE/g (DPPH), 45.7 mol TE/g (ABTS), and 79.9 mol Fe II/g (FRAP). The fermentation of hydrolysates decreased the abundance of microorganisms associated with intestinal diseases from Eubacteriales, Desulfovibrionales and Methanobacteriales orders, while stimulating the growth of organisms belonging to Bacteroides, Megamonas and Limosilactobacillus genera. The production of short-chain fatty acids, ammonia, and CO2 suggested the prebiotic potential. In conclusion, hydrolysates without previous purification and obtained from non-chemical approaches demonstrated promising biological activities for further food applications.
Description" Available online 22 May 2022"
Publisher version
AccessOpen access
Appears in Collections:CEB - Publicações em Revistas/Séries Internacionais / Publications in International Journals/Series

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