Enhancement of beta-carotene synthesis by citrus products.
beta-Ionone, a stimulatory compound in the microbiological production of beta-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-beta-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.
D002338:Carotenoids; D002957:Citrus; D005638:Fruit; D005658:Fungi; D007648:Kerosene; D008965:Molasses; D009090:Mucorales; D045792:Norisoprenoids; D003313:Zea mays; D019207:beta Carotene
D007648:Kerosene; D045792:Norisoprenoids; D019207:beta Carotene; D002338:Carotenoids; C008157:beta-ionone
CAROTENE; CITRUS FRUITS; PHYCOMYCETES