Pullulan is a glucan gum produced by black yeast that contains polysaccharides, which makes it a good water-binding agent, thickening agent, and antioxidant.
References for this information:
Journal of Functional Biomaterials, March 2020, pages 1-17
International Journal of Biological Macromolecules, December 2019, pages 290-298
Journal of Tissue Engineering and Regenerative Medicine, November 2019, pages 1,965-1,977
International Journal of Basic and Applied Sciences, 2012, pages 202-219
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