Enhancement of β-Carotene Synthesis by Citrus Products

Author:

Ciegler Alex1,Nelson George E. N.1,Hall Harlow H.1

Affiliation:

1. Northern Regional Research Laboratory, Northern Utilization Research and Development Division, Agricultural Research Service, U.S. Department of Agriculture, Peoria, Illinois

Abstract

β-Ionone, a stimulatory compound in the microbiological production of β-carotene by mated cultures of Blakeslea trispora , could be replaced with low-cost agricultural by-products (citrus oils, citrus pulp, or citrus molasses) with as good or better carotene yields. Peak yields (81 to 129 mg of carotene per g of dry solids) were achieved in 5 days. The various citrus products tested did not change the pigments produced; all trans -β-carotene remained the pre-dominant pigment. The acid-hydrolyzed soybean meal and corn used in previous production media could be replaced with unhydrolyzed cottonseed embryo meal and corn in a medium that also contained a natural lipid, deodorized kerosene, nonionic detergent, and a precursor.

Publisher

American Society for Microbiology

Subject

General Pharmacology, Toxicology and Pharmaceutics,General Immunology and Microbiology,General Biochemistry, Genetics and Molecular Biology,General Medicine

Reference5 articles.

1. Microbiological production of beta-carotene in shakenflasks;ANDERSON R. F.;J. Agr. Food Chem.,1958

2. Microbiological production of carotenoids. IV. Effect of various grains on production of beta-carotene by mated strains of Blakeslea trispora;CIEGLER A., M.;Appl. Microbiol.,1959

3. Microbiological production of carotenoids. V. Effect of lipids and related substances on production of beta-carotene;CIEGLER A., M.;Appl. Microbiol.,1959

4. Microbiological production of carotenoids. VIII. Influence of hydrocarbon on carotenogenesis by mated cultures of Blakeslea trispora;CIEGLER A., G.;Appl. Microbiol.,1962

5. Process for preparing beta-carotene;ZAJIC J. E.;U. S. Patent,1960

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