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Drying and Extraction Effects on Three Edible Brown Seaweeds for Metabolomics.

Metabolomics is often used to comprehensively elucidate the metabolites in organisms like seaweed. Amino acids hydrolysed from proteins and certain targeted metabolites in seaweed have been investigated. However, water-soluble metabolites like free amino acids, organic acids, and sugars have seldom been comprehensively analysed. Metabolomics are valuable tools for these studies, but they require optimisation of pre-treatment methodology. Here, we evaluated various pre-treatment drying and extraction methods for brown seaweed metabolomics. Three edible brown seaweeds (Cladosiphon okamuranus [Mozuku], Saccharina japonica [Kombu], and Undaria pinnatifida [Wakame]) were used. Freeze-drying and oven-drying at both 40 and 80 °C were investigated. Methanol-water extracts with and without chloroform were compared. Metabolites were evaluated and quantified using liquid chromatography-mass spectrometry and capillary electrophoresis-mass spectrometry. The results showed that metabolite profiling was determined mainly by seaweed species identity rather than pre-treatment method. Freeze-drying yielded higher metabolite concentrations than oven-drying at either 40 or 80 °C. The effects of extraction with and without chloroform on metabolite concentration varied with seaweed species.

FieldValue
Bidang Penyelidikan
Bioteknologi
Objektif Sosioekonomi
Advanced Experimental and Applied Science
Penerbit
Lesen
License Not Specified
Tahap Akses Awam
Public
Modified
2020-01-08
Release Date
2019-12-05
Identifier
b545dcce-b724-49b6-8d05-8e56982dbde2
Penafian: 

The online version of this article ( https://doi.org/10.1007/s10811-018-1614-z) contains supplementary material, which is available to authorized users.