title: Biological activity of phenolic compounds. Hepatic cytochrome P-450, cytochrome b5, and NADPH cytochrome c reductase in chicks and rats fed phenolic monomers, polymers, and glycosides.
abstract: Eight experiments were conducted to determine effects of a phenolic polymer (Kraft wood lignin, Indulin), phenolic glycosides (cane molasses and wood molasses), and phenolic monomers (vanillin, vanillic acid, ferulic acid, and p-coumaric acid) on liver cytochromes P-450, cytochrome b5, and NADPH cytochrome c reductase in chicks and rats. Chicks fed 6.0% lignin had a higher (P less than 0.01) cytochromes P-450 content than did chicks fed 0% fiber, 6.0% wood cellulose (Solka Floc), or 6.0% arenaceous flour. NADPH cytochrome c reductase activity was not affected by treatment. Chicks fed 12.0% wood molasses had a higher (P less than 0.06) cytochromes P-450 level than did chicks fed 0% fiber or 6.0% wood molasses. Cane molasses incorporated at both 6.0 and 12.0% of the diet induced (P less than 0.05) cytochromes P-450 content over those of control-fed birds. Chicks fed 6.0% lignin, with or without antibiotic (bacitracin:neomycin sulfate, 2:1), had a higher (P less than 0.01) cytochromes P-450 level than did chicks fed control diets, with or without antibiotic. Additionally, chicks fed 6.0% lignin had lower (P less than 0.01) intestinal diaminopimelic acid (DAP) levels than did chicks fed 0% fiber. Rats fed 0% fiber, 6.0% wood cellulose, 6.0% arenaceous flour, or 6.0% lignin exhibited no difference in cytochrome level or activity among treatments. Chicks fed 0.5% vanillin, 0.5% vanillic acid, 0.5% ferulic acid, or 0.5% p-coumaric acid had comparable cytochromes level and activity compared with chicks fed no phenolics. Chicks fed 0.5% p-coumaric acid had lower (P less than 0.05) rates of gain than did chicks fed control or other phenolic-containing diets. Rats fed these phenolics had similar cytochromes P-450 content among treatments.
authors.forename: S A
authors.initials: SA
authors.lastname: Klasing
authors.forename: M I
authors.initials: MI
authors.lastname: Mora
authors.forename: W C
authors.initials: WC
authors.lastname: Wilson
authors.forename: G C
authors.initials: GC
authors.lastname: Fahey
authors.forename: J E
authors.initials: JE
authors.lastname: Garst
mesh_terms: D000367:Age Factors; D000818:Animals; D002645:Chickens; D003577:Cytochrome P-450 Enzyme System / Q000378:metabolism*; D003573:Cytochrome b Group / Q000378:metabolism*; D015786:Cytochromes b5; D004043:Dietary Fiber / Q000378:metabolism; D005260:Female; D007422:Intestines / Q000382:microbiology; D008099:Liver / Q000201:enzymology*; D008862:Microsomes, Liver / Q000378:metabolism; D008965:Molasses; D009251:NADPH-Ferrihemoprotein Reductase / Q000378:metabolism*; D010636:Phenols / Q000494:pharmacology*; D011108:Polymers; D051381:Rats; D013329:Structure-Activity Relationship
chemical_list: D003573:Cytochrome b Group; D004043:Dietary Fiber; D010636:Phenols; D011108:Polymers; D015786:Cytochromes b5; D003577:Cytochrome P-450 Enzyme System; D009251:NADPH-Ferrihemoprotein Reductase