Journal
FOOD CHEMISTRY
Volume 384, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.foodchem.2022.132591
Keywords
Antioxidant activity; Low-molecular weight fucoidan; Sargassum autumnale
Funding
- National Research Foundation of Korea (NRF) through the Ministry of Education [2018R1C1B6004780, 2020R1A2C2102697]
- Korea Food Research Institute (KFRI) - Ministry of Science and ICT [E0211200-02]
- National Research Council of Science & Technology (NST), Republic of Korea [E0211200-02] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
- National Research Foundation of Korea [2018R1C1B6004780, 2020R1A2C2102697] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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In this study, the potential antioxidant abilities of low-molecular weight fucoidans from enzyme-assisted hydrolysates of Sargassum autumnale were investigated. The results showed that a specific fucoidan fraction (SAPF3) possessed strong antioxidant properties and could be a potential alternative to antioxidant agents in the functional food industry.
In this study, we investigated the potential antioxidant abilities of low-molecular weight fucoidans from enzymeassisted hydrolysates of Sargassum autumnale, based on molecular weight changes, in vitro and in vivo. The yield and free radical-scavenging activities of enzyme-assisted hydrolysates of S. autumnale were screened. The protamex-assisted hydrolysate of S. autumnale (SAP) presented the highest yield and 2,2-diphenyl-1-picrylhydrazyl (DPPH)-scavenging activity; therefore, it was chosen for fucoidan purification. Three fucoidan fractions were observed in SAP, and their antioxidant activity was assessed. Fucoidan fraction 3 of protamex-assisted hydrolysate of S. autumnale (SAPF3) offered significant protection against H2O2-induced oxidative stress, and was structurally and physically similar to commercial fucoidan. Fucose and low-molecular weight fucoidans were highly concentrated in SAPF3. The results of our study show that SAPF3, a low-molecular weight fucoidan from S. autumnale, possesses strong antioxidant properties and may be an effective alternative to antioxidant agents in the functional food industry.
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