South Korean researchers use tara gum as potential plastics replacement

In South Korea, synthetic, non-biodegradable plastics are major sources of environmental pollution and have prompted a rising interest in sustainable, biodegradable alternatives derived from natural polymers. “Tara gum,” derived from the seeds of the tara tree (Caesalpinia spinosa), stands out as a promising solution. This natural, water-soluble substance contains polysaccharides (complex carbohydrates), including the widely used “galactomannan,” which is employed in coatings, edible films, and as a stabilizer and thickener. The biocompatibility, biodegradability, and safety of tara gum also make it valuable in industries like food and drug delivery. Moreover, the adaptable nature of the groups within tara gum polysaccharides renders it valuable for tailoring physicochemical and mechanical properties for specific applications.

In a recent study, made available online on September 29, 2023 and published in Volume 323 of Carbohydrate Polymers on January 1, 2024, a team of researchers from Chung-Ang University in the Republic of Korea, has now conducted a thorough and critical examination of modification methods (“grafting”) applied to tara gum. The study explores the applications of these modifications in the food and drug industry, including the development of pH-sensitive food packaging and drug delivery systems.