title: Antioxidant activities of crude extracts of fucoidan extracted from Sargassum glaucescens by a compressional-puffing-hydrothermal extraction process.
abstract: Fucoidan, a multifunctional marine polymer, is normally extracted from brown algae via extensive use of acid, solvent or high temperature water and a long reaction time. In present study, we developed a novel compressional-puffing-hydrothermal extraction (CPHE) process which primarily decomposes the cellular structure of algae and facilitates the release of fucoidan by hot water extraction. The CPHE process provides a number of advantages including simple procedure, reactant-saving, reduced pollution, and feasibility for continuous production. Sargassum glaucescens (SG) was utilized in this study, and the maximum extraction yield of polysaccharide was approximately 9.83 ± 0.11% (SG4). Thin layer chromatography (TLC), Fourier transform infrared (FTIR) analysis, and measurements of monosaccharide composition, fucose, sulfate, and uronic acid contents revealed that the extracted polysaccharide showed characteristics of fucoidan. All extracts exhibited antioxidant activities, and thus, further exploration of these extracts as potential natural and safe antioxidant agents is warranted.
authors.affiliation: Department of Seafood Science, National Kaohsiung Marine University, No. 142, Hai-Chuan Rd., Nan-Tzu District, Kaohsiung 811, Taiwan, ROC. Electronic address: cyhuang@webmail.nkmu.edu.tw.
authors.forename: Chun-Yung
authors.initials: CY
authors.lastname: Huang
authors.affiliation: Department of Health and Nutrition, Chia Nan University of Pharmacy & Science, No. 60, Sec. 1, Erh-Jen Rd., Jen-Te District, Tainan 717, Taiwan, ROC.
authors.forename: Shu-Jing
authors.initials: SJ
authors.lastname: Wu
authors.affiliation: Department of Seafood Science, National Kaohsiung Marine University, No. 142, Hai-Chuan Rd., Nan-Tzu District, Kaohsiung 811, Taiwan, ROC.
authors.forename: Wen-Ning
authors.initials: WN
authors.lastname: Yang
authors.affiliation: Department of Seafood Science, National Kaohsiung Marine University, No. 142, Hai-Chuan Rd., Nan-Tzu District, Kaohsiung 811, Taiwan, ROC.
authors.forename: Ai-Wei
authors.initials: AW
authors.lastname: Kuan
authors.affiliation: Department of Seafood Science, National Kaohsiung Marine University, No. 142, Hai-Chuan Rd., Nan-Tzu District, Kaohsiung 811, Taiwan, ROC.
authors.forename: Cheng-Yo
authors.initials: CY
authors.lastname: Chen
mesh_terms: D000975:Antioxidants / Q000494:pharmacology*; D010936:Plant Extracts / Q000494:pharmacology*; D011134:Polysaccharides / Q000302:isolation & purification* / Q000494:pharmacology; D044647:Sargassum / Q000737:chemistry
chemical_list: D000975:Antioxidants; D010936:Plant Extracts; D011134:Polysaccharides; C007789:fucoidan
keywords: Antioxidant activity; Brown algae; Crude extract of fucoidan; Extraction method; Sargassum glaucescens