[1] Univ Fed Santa Maria, Dept Microbiol & Parasitol, BR-97119900 Santa Maria, RS, Brazil
[2] Ctr Univ Franciscano, Lab Cell Culture, Santa Maria, RS, Brazil
[3] Univ Fed Santa Maria, Dept Biochem, Santa Maria, RS, Brazil
[4] Univ Fed Santa Maria, Lab Phytochem, Santa Maria, RS, Brazil
[5] Univ Estado Santa Catarina UDESC, Dept Anim Sci, Chapeco, SC, Brazil
[6] Univ Fed Santa Maria, Dept Physiol & Pharmacol, Santa Maria, RS, Brazil