Effects of EO on microbial fermentation
were considered positive when (i) total
VFA concentration and propionate proportion
increased, (ii) the acetate proportion or acetate to
propionate ratio decreased, and/or (iii) ammonia N
concentration decreased. Similarly, effects of EO
on microbial biohydrogenation were considered
positive when biohydrogenation intermediate
product (t11 C18:1 and CLA) or linoleic acid increased
and the biohydrogenation end product
(C18:0) decreased.