https://www.ajevonline.org/content/69/2/176.article-info
Compositional Variability in Commercial Tannin and Mannoprotein Products | American Journal of...
Enotannin and mannoprotein additives are applied to achieve protein, cold, or color stability in wine, or to modify wine sensory properties. In most cases, the...
compositionalvariabilitycommercialtannin