17 research outputs found
Petroselinic acid purification and its use for the fermentation of new sophorolipids
Petroselinic acid, a positional isomer of oleic acid, was isolated from the vegetable oil of Coriandrum sativum fruits. This uncommon fatty acid was subsequently used as substrate for sophorolipid fermentation with a Starmerella bombicola lactone esterase overexpression (oe sble) strain. A petroselinic acid based diacetylated sophorolipid lactone was obtained in high purity without incorporation of de novo synthesized fatty acids such as oleic acid. A total production of 40 g/L was obtained. The petroselinic acid based sophorolipid lactone was subsequently hydrolyzed towards the petroselinic acid based sophorolipid acid. For both compounds, their critical micelle concentration (CMC) and corresponding surface tension were compared to their oleic acid based counterparts. Both petroselinic acid based sophorolipids displayed a much lower CMC value than their oleic acid based counterparts, although their minimal surface tension was the same. Besides, the sophorolipid fermentation product was chemically modified towards a novel C12 sophorolipid aldehyde. This derivative constitutes an interesting building block for further modification towards new-to-nature sophorolipids with high potential for self-assembly applications
Baromètre de la précarité énergétique – Méthodologie et détails techniques
info:eu-repo/semantics/publishe
Continuous real-time ketone sensing in subcutaneous tissue with combined glucose/ketone sensor : proof-of-concept in pig model
Baromètre de la précarité énergétique – Premiers résultats drafts 2009-2011
info:eu-repo/semantics/publishe
Translations of the sublime: the early modern reception and dissemination of longinus' Peri Hupsous in rhetoric, the visual arts, architecture and the theatre
Accuracy of a subcutaneously inserted NIR spectrometer sensor for continuous glucose, ketone and lactate measurement in interstitial fluid : proof-of-concept in pig model
Policy recommendations
Nine policy recommendations conclude the 2GENDERS research. They are related to energy policy (federal and regional level), housing policy (mainly regional level), and social integration (federal and municipal level). They were inspired by the analysis of the in-depth interviews and of the fieldwork and were discussed with the members of the users’ committee