10.22376/ijpbs.2019.10.1.p1-12 Volume 4 Issue 3 2013 (July - September) Despite the vast importance of green chemistry synthesis and characterization of natural biopolymers is need of time which eliminates the danger to health and environment. Polysaccharides are widely spread biopolymers with diversity of structure and properties. They are potential substitutes of petroleum-derived synthetic products because they are easily available, nontoxic, biodegradable and biocompatible. Due to their fascinating properties they are used as a rheological modifier in food, pharmaceutical, paper, textile, oil and drilling and score of other industrial and commercial sectors. Modification of hydrophilic backbone of these biopolymers diversifies and enhances its applications and functionality. Guar gum is an outstanding representative of green, ecofriendaly biopolymers This Review deals with structure, properties and potential uses of green biopolymer guar gum. Different methodologies to modify guar to enhance and diversify its properties and application range are discussed and reviewed. DURE NAJAF IQBAL AND ERUM AKBAR HUSSAIN Biopolymers, Guar gum, Green, Modifications, Hydrophilic backbone 423-435