Fig. 3

Releases of ferulic acid and p-coumaric acid by the (Piromyces + M. ruminantium) Yak-G18 co-culture grown on chopped wheat straw, corn stalk, rice straw, Chinese wildrye and medicago sativa during the 7 days’ incubation (wheat straw diamond, corn stalk square, rice straw triangle, Chinese wildrye star, medicago sativa circle)