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Journal article

Effect of Extraction Temperature on Pressurized Liquid Extraction of Bioactive Compounds from Fucus vesiculosus

By Getachew, Adane Tilahun1,2; Holdt, Susan Løvstad1,2; Meyer, Anne Strunge3,4,5; Jacobsen, Charlotte1,2,6

From

National Food Institute, Technical University of Denmark1

Research Group for Bioactives – Analysis and Application, National Food Institute, Technical University of Denmark2

Department of Biotechnology and Biomedicine, Technical University of Denmark3

Section for Protein Chemistry and Enzyme Technology, Department of Biotechnology and Biomedicine, Technical University of Denmark4

Enzyme Technology, Section for Protein Chemistry and Enzyme Technology, Department of Biotechnology and Biomedicine, Technical University of Denmark5

DTU Microbes Initiative, Centers, Technical University of Denmark6

This study was aimed at investigating the effect of low polarity water (LPW) on the extraction of bioactive compounds from Fucus vesiculosus and to examine the influence of temperature on the extraction yield, total phenolic content, crude alginate, fucoidan content, and antioxidant activity. The extractions were performed at the temperature range of 120-200 °C with 10 °C increments, and the extraction yield increased linearly with the increasing extraction temperature, with the highest yields at 170-200 °C and with the maximum extraction yield (25.99 ± 2.22%) at 190 °C.

The total phenolic content also increased with increasing temperature. The extracts showed a high antioxidant activity, measured with DPPH (2,2-Diphenyl-1-picrylhydrazyl) radicals scavenging and metal-chelating activities of 0.14 mg/mL and 1.39 mg/mL, respectively. The highest yield of alginate and crude fucoidan were found at 140 °C and 160 °C, respectively.

The alginate and crude fucoidan contents of the extract were 2.13% and 22.3%, respectively. This study showed that the extraction of bioactive compounds from seaweed could be selectively maximized by controlling the polarity of an environmentally friendly solvent.

Language: English
Publisher: MDPI AG
Year: 2022
Pages: 263
ISSN: 16603397
Types: Journal article
DOI: 10.3390/md20040263
ORCIDs: Getachew, Adane Tilahun , Holdt, Susan Løvstad , Jacobsen, Charlotte and Meyer, Anne Strunge
Keywords

Antioxidant activity Crude fucoidan Fucus vesiculosus Low polarity water Marine phenolic compounds SDG 14 - Life Below Water

Other keywords

<i>Fucus vesiculosus</i> Alginates Antioxidants Biology (General) Fucus Phenols Plant Extracts QH301-705.5 Seaweed Temperature antioxidant activity crude fucoidan low polarity water marine phenolic compounds

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