Search results for "blg"
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A brown dwarf orbiting an M-dwarf:MOA 2009-BLG-411L
2012
Context. Caustic crossing is the clearest signature of binary lenses in microlensing. In the present context, this signature is diluted by the large source star but a detailed analysis has allowed the companion signal to be extracted.Aims. MOA 2009-BLG-411 was detected on August 5, 2009 by the MOA-Collaboration. Alerted as a high-magnification event, it was sensitive to planets. Suspected anomalies in the light curve were not confirmed by a real-time model, but further analysis revealed small deviations from a single lens extended source fit.Methods. Thanks to observations by all the collaborations, this event was well monitored. We first decided to characterize the source star properties b…
Trend in dairy sheep BLG genotype found with repeatability test-day model.
2007
A total of 19.207 test-days, collected on 4 farms from 1999-2006 and belonging to 1109 Valle del Belice dairy sheep were analyzed with a repeatability model. After strict outlier analysis 17.747 records were retained. Animals were reared in an extensive system resulting in large environmental influences. However, significant genetic variation was detected in production traits (milk production mean=1336 stdg=93 g/d, fat+protein 167 stdg=12 g/d). Heritability was only 3% while the interaction year by month of test-day explained 27% of the variation. A protein and DNA analysis program was initiated in order to facilitate selection to maintain these flocks under these conditions. In total 427 a…
Hydrophobic interactions between aroma compounds and beta-Lactoglobulin using NMR and a fluorescent probe
2010
International audience; beta-lactoglobulin (bLg) is known to interact with aroma compounds affecting their release, and hence, their perception. bLg, composed of two hydrophobic binding sites, was used as a simple model food protein to investigate binding mechanisms as a function of ligand nature. Indeed, binding of small ligands to bLg sites is often selective, although some ligands bind to both sites. Interactions between bLg and one ketone, beta-ionone, and one phenol, guaiacol were investigated by combining two techniques: 2D Nuclear Magnetic Resonance for binding site location, and fluorescence using the 6-propionyl-2-(N, N-dimethylamino)naphthalene (PRODAN) probe for surface hydrophob…