Uncovering the effect of minerals on the structure and distribution of degradation products of sesame hull lignin during roasting process.

This study aimed to explore the effects of minerals on the structure and degradation product distribution of sesame hull (SH) lignin during the roasting process. SH lignin was impregnated with various minerals (Ca, Mg, K, and Na) before roasting. The results indicated that mineral addition significantly affected the carbohydrate composition and content of SH lignin, with K- and Na-treated samples (0.