Supplementary Data for the In Vitro Rumen Fermentation Study on Polarity-Defined Fractions of Sijunzi San (Four-Gentlemen Decoction)

Supplementary Materials Summary• Table S1 – Differentially abundant microbial taxa among SJZS fractions.• Table S2 – Full taxonomic abundance matrix (phylum → species).• Table S3 – LC-MS metabolite annotations with pathway links.• Table S4 – Bioactive compounds distinguishing high- vs. low-performing fractions.• Table S5 – Trend clusters