Abstract
Guar gum (GG) is a natural heteropolysaccharide. Due to its non-toxic, eco-friendly, and
biodegradable nature, GG has found wide applications in many areas, in particular food, paper,
textile, petroleum, and pharmaceutical industries. Therefore, GG is often called “Black Gold” as
well. Due to the presence of hydroxyl groups, GG can be modified by various methods. The
physical and biological properties of GG can be modulated by chemical modifications. In this
manuscript, various methods for the chemical modifications of GG have been discussed according
to the type of modifications. Mechanistic insights have also been provided whenever possible. In
addition, potential applications of new GG derivatives have also been briefly mentioned.
Keywords:
Guar gum, galactomanan, natural product, polymer, polysaccharide, chemical modification, progress.
Graphical Abstract
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