For the past year a number of Palmaria palmata extracts have been produced and analyzed at Matís Iceland. Different extraction methods have been tested with the aim to increase the protein yield as much as possible. The aim was to produce both fractions rich in protein and sugars, separately. This is a part of WP3 -Refined products – processes and applications. Precipitation, microfiltration, and enzyme digestion with different types of enzymes was performed in hope to get the best results. Both commercial enzymes as well as enzymes produced at Matís were used.
During our experiments we have seen extracts with different colors and textures but the results we got were not all satisfactory. Finally, with a bit of patience and some improvements we managed to get the results we hoped for and the next step will be to analyze the samples considering their bioactivity.
Through great teamwork and collaboration, we managed to produce Palmaria extract with desired results. The past year spent on the project has been very educating and rewarding.
Samples before sieving
Filtration with 10kDa – the color did not pass the filter
Filtered samples after freeze-drying
Málfríður, a master student from Iceland, weighing the liquid before freeze-drying
Anna, a master student from Sweden, weighing the extract after freeze-drying