From the forest to the plate – Hemicelluloses, galactoglucomannan, glucuronoxylan, and phenolic-rich extracts from unconventional sources as functional food ingredients

[Display omitted] •Forest industry side-streams showed antiviral, antioxidant and antidiabetic potential.•Both wood hemicelluloses and bark polyphenols decreased erythrocyte hemolysis.•Bark polyphenols protected against Coxsackievirus A9 infection.•Cell-based experiments showed non-toxic in vitro pr...

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Bibliographic Details
Published in:Food chemistry 2022-07, Vol.381, p.132284-132284, Article 132284
Main Authors: Granato, Daniel, Reshamwala, Dhanik, Korpinen, Risto, Azevedo, Luciana, Vieira do Carmo, Mariana Araújo, Cruz, Thiago Mendanha, Marques, Mariza Boscacci, Wen, Mingchun, Zhang, Liang, Marjomäki, Varpu, Kilpeläinen, Petri
Format: Article
Language:English
Subjects:
Antioxidants - metabolism
Antioxidants - pharmacology
Cell-based models
Food Ingredients
Forest byproducts
Forests
Galactoglucomannans
Humans
Mannans
Phenolic composition
Plant Extracts - pharmacology
Polysaccharides
Reactive oxygen species
Tannins
Xylans
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Summary:[Display omitted] •Forest industry side-streams showed antiviral, antioxidant and antidiabetic potential.•Both wood hemicelluloses and bark polyphenols decreased erythrocyte hemolysis.•Bark polyphenols protected against Coxsackievirus A9 infection.•Cell-based experiments showed non-toxic in vitro profile of extracts. This study aimed to characterise pressurised hot water (PHW) extracts from nonconventional sources of functional carbohydrates and phenolic compounds in terms of antioxidant capacity, antiviral activity, toxicity, and human erythrocytes’ protection antidiabetic potential. PHW extracts of Norway spruce bark (E1 + E2) and Birch sawdust (E3 + E4) contained mostly galactoglucomannan and glucuronoxylan. In contrast, samples E5 to E9 PHW extracted from Norway spruce, and Scots pine bark are rich sources of phenolic compounds. Overall, phenolic-rich extracts presented the highest inhibition of α-amylase and α-glucosidase and protection against stable non-enveloped enteroviruses. Additionally, all extracts protected human erythrocytes from hemolysis. Cell-based experiments using human cell lines (IMR90 and A549) showed extracts’ non-toxicin vitroprofile. Considering the relative toxicological safety of extracts from these unconventional sources, functional carbohydrates and polyphenol-rich extracts can be obtained and further used in food models.
ISSN:0308-8146
1873-7072
DOI:10.1016/j.foodchem.2022.132284