the potential use of date syrup, for the production of carotenoids by rhodotorula glutinisin batch fermentation process, was investigated during 7 days. the results revealed that carbon (glucose or date syrup) and nitrogen sources [yeast extract, (nh4)2so4 and nh4no3] had a significant influence on biomass and carotenoid production. maximum yield of total carotenoid production (7.94 mg/l) with ...

The peel of Gac fruit (Momordica cochinchinensis Spreng.) contains high levels of bioactive compounds, especially carotenoids which possess significant antioxidant capacities. However, the peel of Gac is regarded as a waste from the production of carotenoid-rich oil from Gac fruit. In this study, carotenoids of Gac peel were extracted by microwave-assisted extraction (MAE) and ultrasound-assist...

A survey was done for the most common yeast isolates from different clinical sources from human and animals in addition to environment samples from soil in El-Fayoum Governorate. The total of tested samples was 802 clinical and environmental samples. They consisted of fifty human vaginal swabs, seventy one human throat swabs, three hundred fifty seven animal vaginal swabs, one hundred seventy n...

The potential use of date syrup, for the production of carotenoids by Rhodotorula glutinisin batch fermentation process, was investigated during 7 days. The results revealed that carbon (glucose or date syrup) and nitrogen sources [yeast extract, (NH4)2SO4 and NH4NO3] had a significant influence on biomass and carotenoid production. Maximum yield of total carotenoid production (7.94 mg/L) with ...

Of the 136 strains of Fusarium examined, T-2 toxin was confirmed by thinlayer chromatography in 13 of the 21 extracts that inhibited either Rhodotorula rubra or Pencillium digitatum.

The antimicrobial activities of the ethyl acetate, acetone and methanol extract of 12 plant species were studied. The extract of Capsicum annuum (red pepper) (fruit) Zingiber officinale (ginger) (root), Cuminum cyminum (cumin), Alpinia ficinarum (galingale), Coriandrum sativum (coriander), Cinnamomun zeylanicum Nees (cinnamomun), Origanum onites L. (thyme), Folium sennae (senna), Eugenia caryop...

Stereospecifically labeled mevalonic acid was incorporated into the carotenoids of Rhodotorula. The randomized results are discussed in relation to mechanisms proposed for the conversion of isopentenyl pyrophosphate to dimethylallyl pyrophosphate and the prenol transferase enzyme system to Rhondotorula rubra.

Under intensive aeration (1.3 l/l min) the associated growth of Rhodotorula rubra GED2 and Lactobacillus casei subsp. casei in cheese whey ultrafiltrate (55 g lactose/l) proceeded effectively for both cultures with production of maximum carotenoids (12.4 mg/l culture fluid). For maximum amount of carotenoids synthesized in the cell, the yeast required more intensive aeration than the aeration n...

Immobilized whole cells of Rhodotorula rubra MIM147 were used in a packed bed flow reactor for the enantioselective reduction ?-ketonitriles and obtainment key building block synthesis antidepressant drug duloxetine.