title: Evaluation of lysine and methionine production in some Lactobacilli and yeasts from ogi.
abstract: Lysine and methionine producing cultures of Lactobacillus and yeasts in batch fermentation of ogi were selected by growth in the presence of the analogues, S-2-aminoethyl]-L-cysteine (thialysine) and ethionine respectively. The study shows that 42.5% of the Lactobacillus and 83.3% of the yeast isolates tested were capable of lysine production while 25.0% of the Lactobacillus and 87.8% of the yeast isolates produced methionine. The lysine and methionine yields of Lactobacillus were significantly (P <0.01) higher than that of yeasts. The majority of the yeast isolates excreted most of the lysine and methionine produced. More lysine was produced than methionine in all tested isolates.
authors.affiliation: Food and Biotechnology Division, Federal Institute of Industrial Research, Oshodi, FIIRO, Ikeja, Lagos, Nigeria.
authors.forename: S A
authors.initials: SA
authors.lastname: Odunfa
authors.forename: S A
authors.initials: SA
authors.lastname: Adeniran
authors.lastname: Teniola
authors.forename: J
authors.initials: J
authors.lastname: Nordstrom
mesh_terms: D000963:Antimetabolites; D003545:Cysteine / Q000008:administration & dosage / Q000031:analogs & derivatives; D005001:Ethionine / Q000008:administration & dosage; D005285:Fermentation; D007778:Lactobacillus / Q000378:metabolism*; D008239:Lysine / Q000096:biosynthesis*; D008715:Methionine / Q000096:biosynthesis*; D011500:Protein Synthesis Inhibitors; D015003:Yeasts / Q000378:metabolism*; D003313:Zea mays / Q000382:microbiology*
chemical_list: D000963:Antimetabolites; D011500:Protein Synthesis Inhibitors; C000204:S-2-aminoethyl cysteine; D008715:Methionine; D008239:Lysine; D003545:Cysteine; D005001:Ethionine