ArticleUltrasonics sonochemistry2026
Intensification of Palmaria palmata protein biorefinery using multifrequency ultrasonication and enzymes.
Article in Ultrasonics sonochemistry, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
The red seaweed Palmaria palmata is a promising source for alternative proteins. Development of mild and novel biorefinery approaches are needed for green processes yielding functional proteins. Process intensification using ultrasound-assisted unit operations can be an effective strategy to circumvent current seaweed biorefinery challenges, in particular limited protein extraction yields. In this research, first, effects of acoustic cavitation (AC) during ultrasound-assisted extraction (UAE) were studied using a multifactorial design of experiments for total protein and R-phycoerythrin (RPE) extraction from P. palmata. Secondly, novel enzyme-assisted high-frequency ultrasonic extraction (EAUE) was developed following the same approach and responses. Contrary to the traditional acoustic cavitation process, this intensification strategy allows a milder extraction of proteins from the recalcitrant P. palmata harnessing combined effects of acoustic irradiation and enzymes. Validation experiments showed the robustness of developed models. Maximum RPE yields were 2.6 mg/g
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