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dc.contributor.authorYen, Ying
dc.contributor.authorWeisbjerg, Martin Riis
dc.contributor.authorRautenberger, Ralf
dc.contributor.authorFečkaninová, Adriána
dc.contributor.authorNovoa-Garrido, Margarita
dc.identifier.citationYen, Y., Weisbjerg, M. R., Rautenberger, R., Fečkaninová, A. & Novoa-Garrido, M. (2021). Improving fermentation of Saccharina latissima and Alaria esculenta silages with additives for preserving biomass and antioxidants. Journal of Applied Phycology, 34(1). doi:en_US
dc.description.abstractRapid deterioration of harvested macroalgal biomass is a challenge for macroalgal industry and can be overcome with the inexpensive ensiling preservation. To improve silage quality, Saccharina latissima and Alaria esculenta biomass was subjected to ensiling conditions following a 2 × 4 factorial design, with 2 prewilting treatments (no-prewilting and prewilted to 300 g DM kg−1 fresh biomass) and 4 additive treatments (no additive, formic acid, single and two species of Lactobacillus inoculant), and ensiled for 3 or 12 months at 15 °C. Acetate was the main fermentation product in these seaweed silages. Prewilting reduced the acetate, mannitol, and NH3 content in silages. In S. latissima silages without additives, prewilting led to less acidification (pH = 5.7). Also, prewilting caused protein and phlorotannin degradation. When treated with formic acid, the silage pH was below 4 regardless of the biomass’s moisture content. The use of Lactobacillus spp. inoculants was essential for lactate production in seaweed silages, and it significantly lowered silage pH in S. latissima and prewilted A. esculenta compared to silages with no additives. A high level of the phlorotannin content was preserved (> 90%) in the 3-month A. esculenta silages without prewilting. However, major reduction of antioxidant activity was observed in 12-month silages in both seaweed species. In conclusion, ensiling is a viable method for preserving Alaria and Saccharina biomass. Prewilting restricted silage fermentation, and both formic acid and bacterial additives facilitated silage acidification. However, there was no clear benefit of these treatments in preserving the antioxidant activity.en_US
dc.rightsNavngivelse 4.0 Internasjonal*
dc.titleImproving fermentation of Saccharina latissima and Alaria esculenta silages with additives for preserving biomass and antioxidantsen_US
dc.typePeer revieweden_US
dc.typeJournal articleen_US
dc.rights.holder© 2021 The Author(s)en_US
dc.subject.nsiVDP::Landbruks- og fiskerifag: 900en_US
dc.source.journalJournal of Applied Phycologyen_US
dc.relation.projectMABIT: AF0083en_US

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Navngivelse 4.0 Internasjonal
Except where otherwise noted, this item's license is described as Navngivelse 4.0 Internasjonal