title: Strain selection for β-carotene production by Dunaliella.
abstract: Four strains of Dunaliella were grown at 25°C and pH 8±0.5, with continous illumination at 200 W/m(2). Their maximum specific growth rates ranged from 0.093 day(-1) to 0.234 day(-1), nitrate yields from 3.0 to 7.8 g cells/g NaNO3 and lipid contents from 3% to 6% of the dry wt, with carotenes 50 to 80% of the lipids. Of the carotenes, β-carotene made up 7 to 19%; all-trans-β-carotene 32 to 52% and 9-cis-β-carotene 29 to 55%. There are, therefore, considerable intra-specific differences between strains of Dunaliella.
authors.affiliation: School of Biochemical Engineering, Universidad Catolica de Valparaiso, Av. Brasil 2950, Casilla, 4059, Valparaiso, Chile.
authors.forename: A
authors.initials: A
authors.lastname: Markovits
authors.forename: M P
authors.initials: MP
authors.lastname: Gianelli
authors.forename: R
authors.initials: R
authors.lastname: Conejeros
authors.forename: S
authors.initials: S
authors.lastname: Erazo