Composition and processing of Ulva intestinalis from 8 different sites along the Swedish coast
Övrigt konferensbidrag, 2018

Seaweed has the potential to provide a large quantities of biomass as feedstocks for production of energy and chemicals. Compared to terrestrial biomasses, seaweed does not require arable land or fertilizer for cultivation, effectively not competing with food production. Significant efforts are now being made to improve both cultivation, extraction techniques and product development of seaweed to enable a seaweed industry in the future. An aspect that has thus far received little attention is on the optimisation of cultivation siting to maximise the content of valuable components in the biomass (and minimize waste), despite it being well known that variation in ambient conditions cause significant changes in biomass composition.

 In this study, we have investigated the opportunistic summer seaweed Ulva intestinalis, which is of commercial interest due to its high growth rate and broad distribution along the entire Swedish coast. To evaluate where cultivation could be most beneficial from a biomass composition perspective, samples were collected from 8 sites along the Swedish coastline between Tjärnö on the west coast to Stockholm on the east. At each site, 3 separate populations were sampled. For each sample the content and profile of metals, sugars, ash and lipids were measured. These measures are being evaluated to highlight trends relating to differences in location conditions. The largest impact could be seen on the sugar compostition, as monosaccharides present in the polysaccharide ulvan showed, roughly, a 2-fold increase on the east coast compared to the western coast.

ulvan

Seaweed

composition

variation

Författare

Joakim Olsson

Chalmers, Biologi och bioteknik, Industriell bioteknik

Sofia Raikova

University of Bath

Joshua Mayers

Chalmers, Biologi och bioteknik, Industriell bioteknik

Christopher J Chuck

University of Bath

Göran M Nylund

Göteborgs universitet

Eva Albers

Chalmers, Biologi och bioteknik, Industriell bioteknik

Young Alganeers Symposium 2018
Oban, United Kingdom,

Styrkeområden

Energi

Livsvetenskaper och teknik (2010-2018)

Ämneskategorier

Bioenergi

Mer information

Senast uppdaterat

2022-05-17