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- Title
Sulfated Galactans from Agarophytes: Review of Extraction Methods, Structural Features, and Biological Activities.
- Authors
Chumsook, Khosook; Praiboon, Jantana; Fu, Xiaoting
- Abstract
Agarophytes are important seaweeds of the Rhodophyta type, which have been highly exploited for industrial use as sources of a widely consumed polysaccharide of agar. In addition to that, sulfated galactans (SGs) from agarophytes, which consist of various functional sulfate groups, have attracted the attention of scientists in current studies. SGs possess various biological activities, such as anti-tumor, anticoagulant, anti-inflammatory, antioxidant, anti-obesity, anti-diabetic, anti-microbial, anti-diarrhea, and gut microbiota regulation properties. Meanwhile, the taxonomy, ecological factors, i.e., environmental factors, and harvest period, as well as preparation methods, i.e., the pretreatment, extraction, and purification conditions, have been found to influence the chemical compositions and fine structures of SGs, which have, further, been shown to have an impact on their biological activities. However, the gaps in the knowledge of the properties of SGs due to the above complex factors have hindered their industrial application. The aim of this paper is to collect and systematically review the scientific evidence about SGs and, thus, to pave the way for broader and otherwise valuable industrial applications of agarophytes for human enterprise. In the future, this harvested biomass could be sustainably used not only as a source of agar production but also as natural materials in functional food and pharmaceutical industries.
- Subjects
GALACTANS; POLYSACCHARIDES; GUT microbiome; INDUSTRIAL applications; FUNCTIONAL groups
- Publication
Biomolecules (2218-273X), 2023, Vol 13, Issue 12, p1745
- ISSN
2218-273X
- Publication type
Article
- DOI
10.3390/biom13121745