A mutant Rhodotorula rubra with enhanced carotenoid-synthesizing activity for synthesizing total carotenoids and beta-carotene was obtained by N-methyl-N'-nitro-N-nitrosoguanidine mutagenesis. When co-cultivated with yogurt starter bacteria (Lactobacillus bulgaricus + Streptococcus thermophilus) in whey ultrafiltrate it produced 15.7 mg total carotenoids l(-1) culture fluid or 946 microg total ...

Chemical analysis of fermentation products from two Australian Streptomyces isolates yielded all four known and twelve new examples of the rare reveromycin class of polyketide spiroketals, including hemi-succinates, hemi-fumarates and hemi-furanoates. Reveromycins were identified with the aid of HPLC-DAD-MS and HPLC-DAD-SPE-NMR methodology, and structures were assigned by detailed spectroscopic...

Distillers dried grains with solubles (DDGS) is a corn derived co-product of the ethanol industry. Recent renewable fuels legislation is encouraging more production of ethanol, thus using more corn but resulting in greater supplies of DDGS available for animal feeding. As corn prices increase some relief could be provided by feeding DDGS as it would replace some corn and soybean meal in poultry...

Inoculation at alkaline pH (above 9) of lye-treated green olives with starter cultures of Lactobacillus pentosus CECT 5138 was studied. Despite an initial loss of viability in the order of 1-2 log cycles on average, depending mainly on time of application, cultures grew and initiated an accelerated fermentation process. Inoculation reduced the population of Enterobacteriaceae, and thereby poten...

A total of 330 lactic acid bacteria isolated from South African red wines during alcoholic and malolactic fermentations and 9 commercial malolactic bacteria starter cultures were screened for antimicrobial activity. Of the entire screened isolates, 26 strains, belonging to the species Lactobacillus plantarum, Lactobacillus paracasei, Lactobacillus hilgardii and Oenococcus oeni, showed activity ...

This study presents the nutritional, physicochemical, and sensory characterization of a functional fermented African finger millet-based beverage, using co-culture containing an exopolysaccharide-producer strain probiotic strain. First, fermentation factors affecting beverage were studied to ascertain required starter culture cereal matrix which would support its production. Co-culturing Weisse...

A cover starter is a single vector that yields a covering array under the actions of groups on both the columns and the symbols of the starter. The existence of this compact representation of covering arrays facilitates effective exhaustive and heuristic search. When the group action on symbols fixes a small number f of symbols, such cover starters lead to covering arrays that embed covering ar...

In recent years, the permanent magnet synchronous motor (PMSM) has garnered significant attention due to its high power density and efficiency in applications such as electric vehicles, aviation, other domains. This paper proposes a stator field control starter–generator (SFC-PMSSG) system. The system comprises SFC-PMSSG controller (FC). A mathematical model of is established. Finite element an...

Acknowledgements: This work was supported by the Belgian Program on 17 Interuniversity Attraction Poles and PRODEX program initiated by the Belgian Federal 18 Science Policy Office, Actions de Recherche Concertées (French community, Belgium) 19 and the European Space Agency (ESA) of the European Union. JJO is supported by the 20 Brains Back to Brussels program from the Brussels Region (Belgium)...