Background: Guar gum is a water-soluble polysaccharide called galactomannan, obtained from the endosperm of Cyamopsis tetragonolobus, a plant belonging to the Leguminosae family. Galactomannan is a biopolymer rich in functional groups, particularly hydroxyl groups, which expands the possibilities of its chemical modification and, therefore, biological applications.

Objective: This review aims to present and discuss various methods used in the preparation of guar gum composites and their applications in the biomedical, pharmaceutical, food, and cosmetic industries.

Methods: The published data about the extraction procedure of guar gum and its various physicochemical properties have been collected and analyzed. Further, the published information about various methods used for the preparation of guar gum composite systems, including film, hydrogel, and beads, have been gathered and comprehensively discussed in this review. The applications of guar gum based composites in the field of biomedical, pharmaceutical, food, and cosmetics have also been reviewed in detail.

Results: Different guar gum composite systems have shown multifunctional properties, including gelling and emulsifying ability, thickening and binding property, quick solubility in water, good biocompatibility, and biodegradability in the domain of biomedical, pharmaceutical, food, and cosmetic industries.

Conclusion: Recent advancements in the preparation and applications of guar gum composites summarized in this review will enhance the practical applications of this polymer in various industries.

背景：瓜尔豆胶是一种叫做半乳甘露聚糖的水溶性多糖，从豆科植物Cyamopsis tetragonolobus 的胚乳中获得。半乳甘露聚糖是一种富含官能团的生物聚合物，尤其是羟基，这扩大了其化学改性的可能性，因此扩大了生物应用。

目的：本综述旨在介绍和讨论用于制备瓜尔胶复合材料的各种方法及其在生物医学、制药、食品和化妆品行业中的应用。

方法：收集并分析了有关瓜尔胶提取过程及其各种理化性质的已发表数据。此外，本综述还收集并全面讨论了有关用于制备瓜尔胶复合系统的各种方法（包括薄膜、水凝胶和珠粒）的已发表信息。瓜尔胶基复合材料在生物医学、制药、食品、化妆品等领域的应用也有详细综述。

结果：不同的瓜尔胶复合体系在生物医药、医药、食品、化妆品等行业均表现出多种功能，包括胶凝乳化能力、增稠粘合性、水溶性快、生物相容性好、生物降解性等。

结论：本综述中总结的瓜尔胶复合材料的制备和应用的最新进展将增强该聚合物在各个行业的实际应用。