Effect of Amino Acids on Growth and Cartenogenesis in Corynebacterium Species Strain 7E1C

• Main Author: Coughran, Carolyn S.
• Other Authors: Kester, Andrew S.
• Format: Others
• Language: English
• Published: North Texas State University 1977
• Subjects: Corynebacterium 7E1C; carotenogenesis; carotenoids; amino acids; Carotenoids.; Amino acids.; Corynebacterium species strain 7E1C.
• Online Access: https://digital.library.unt.edu/ark:/67531/metadc504327/

Studies were evaluated on the effects of known growth factors on the growth and carotenogenesis of Corynebacterium species strain 7ElC. The complex medium, Tryptic Soy Broth,was found to stimulate growth and production of more pigment in the light and in the dark than did a mineral salts-glucose medium. A complete amino acid mixture added to LSG enhanced carotenogenesis in the dark in Corynebacterium 7ElC, while B-vitamins retarded carotenogenesis. No absolute requirement for one or more amino acids was found,indicating a multiple amino acid requirement. The fewest amino acids found to stimulate carotenogenesis in the dark were a combination of those in the Serine and Histidine families which include serine, glycine, cysteine, and histidine.