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Oligosaccharide Assembly01:24

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Protein glycosylation starts in the ER lumen and continues in the Golgi apparatus. Glycosyltransferases catalyze the addition of sugar molecules or glycosylation of proteins. Usually, these enzymes add sugars to the hydroxyl groups of selected serine or threonine residues to form O-linked glycans or the amino groups of asparagine residues to form N-linked glycans. Different positions on the same polypeptide chain can contain differently linked glycans.
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Polysaccharides such as glycogen and starch are synthesized from nucleoside diphosphate sugars, primarily uridine diphosphate glucose (UDPG) and adenosine diphosphate glucose (ADPG). These activated glucose donors act as key intermediates in carbohydrate metabolism and biosynthesis. UDPG primarily involves glycogen synthesis in animals and many bacteria, while ADPG plays a fundamental role in starch synthesis in plants and certain bacteria.UDPG is formed when glucose-1-phosphate reacts with...
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Fucoidan-Derived Functional Oligosaccharides: Recent Developments, Preparation, and Potential Applications.

Min Wang1,2, Suresh Veeraperumal3, Saiyi Zhong1

  • 1Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Guangdong Province Engineering Laboratory for Marine Biological Products, Guangdong Provincial Engineering Technology Research Center of Seafood, Guangdong Provincial Science and Technology Innovation Center for Subtropical Fruit and Vegetable Processing, College of Food Science and Technology, Guangdong Ocean University, Zhanjiang 524088, China.

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Summary

Fuco-oligosaccharides (FOSs), derived from fucoidan, offer enhanced solubility and biological activities. This review details FOS preparation, purification, and their health benefits for functional foods and pharmaceuticals.

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biological activitiesbrown algaefuco-oligosaccharidesprebioticspreparation

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Area of Science:

  • Marine biotechnology
  • Carbohydrate chemistry
  • Nutraceutical science

Background:

  • Oligosaccharides from natural sources are gaining attention for health benefits.
  • Fucoidan, a marine polysaccharide, has known health properties.
  • Partially hydrolyzed fucoidan yields fuco-oligosaccharides (FOSs) with improved properties.

Purpose of the Study:

  • To review methods for preparing fuco-oligosaccharides (FOSs) from fucoidan.
  • To discuss purification techniques for FOSs.
  • To summarize the biological activities and health benefits of FOSs.

Main Methods:

  • Mild acid hydrolysis
  • Enzymatic depolymerization
  • Radical degradation

Main Results:

  • FOSs exhibit superior solubility and biological activities compared to fucoidan.
  • Various hydrolysis methods have distinct advantages and disadvantages.
  • Purification strategies are crucial for obtaining high-purity FOSs.

Conclusions:

  • Fuco-oligosaccharides (FOSs) are promising ingredients for the functional food, cosmetic, and pharmaceutical industries.
  • Further research into FOSs' mechanisms of action can lead to novel therapeutic applications.
  • Optimized preparation and purification are key to maximizing FOSs' potential.