7 research outputs found
Prokaryotic triterpenoids: O-α-d-glucuronopyranosyl bacteriohopanetetrol, a novel hopanoid from the bacterium Rhodospirillum rubrum
Full text linkDu diploptérol vers la tétrahymanone : une transformation chimique simple de la série hopane en série gammacérane
Get PDFInfluence of the temperature and the growth phase on the hopanoids and fatty acids content of Frateuria aurantia (DSMZ 6220)
No full textInternational audienc
Once upon a larva: revisiting the relationship between feeding success and growth in fish larvae
No full textLuffa cylindrica and phytosterols bioconversion: from shake flask to jar bioreactor
No full textInternational audienceAbstract Bioconversion of lipophilic compounds poorly soluble in water, such as sterols, required the use of chemicals and solubilizing agents. On the other hand, it was shown that immobilization of Mycobacterium species on the dried fruit of Luffa cylindrica (DFLC) allows a close interaction between immobilized cells and cholesterol particles and increases by then the product’s yield. In this work, the use of DFLC in a 5-l jar bioreactor with phytosterols mixture (1 g/l) as substrate was assessed without addition of any chemicals or solubilizing agents. DFLC increased by a factor of four the volumetric productivity of androstenones (0.08 g/l day). Products were accumulated in the aqueous medium while substrates remained on the fibers of DFLC. This observation lets envisage a green semi-continuous process of androstenone production. DFLC has no influence on cell growth, and is moreover natural, inexpensive, non-toxic, and mechanically strong
