Front-face fluorescence spectroscopy combined with chemometrics to detect high proteinaceous matter in milk and whey ultrafiltration permeate

Permeate from cheese whey ultrafiltration is a source of milk oligosaccharides.

Previously undescribed oligosaccharides in bovine cheese whey permeate were characterized by a combination of nanoelectrospray Fourier Transform Ion Cyclotron Resonance (nESI-FTICR) mass spectrometry and matrix-assisted laser desorption/ionization Fourier transform ion cyclotron resonance (MALDI-FTICR) mass spectrometry. Oligosaccharide composition was elucidated by collision-induced dissociati...

Use of front face fluorescence spectroscopy to identify sheep milk from different feeding diets

The present study aimed to determine the potential of front face fluorescence spectroscopy (FFFS) to discriminate between milk samples belonging to Sicilo-Sarde ewes fed with three different feeding groups –named control, scotch bean meal and soybean meal– throughout the lactation stage (11 weeks). Milk samples were classified by factorial discriminant analysis. Similar results were obtained by...

Energy concentration and phosphorus digestibility in whey powder, whey permeate, and low-ash whey permeate fed to weanling pigs.

Two experiments were conducted to determine DE and ME, the apparent total tract digestibility (ATTD) of P, and the standardized total tract digestibility (STTD) of P in whey powder (3,646 kcal/kg), whey permeate (3,426 kcal/kg), and low-ash whey permeate (3,657 kcal/kg) fed to weanling pigs. The DE and ME in the 3 whey products were determined using 32 barrows (9.2 ± 0.4 kg of BW). A basal diet...

Characterization of Milk Proteins in Ultrafiltration Permeate and Their Rejection Coefficients

The most widespread method applied for standardization of milk protein in cheese production isultrafiltration. In the current study, pasteurized, unhomogenized whole milk was ultrafiltered with APVultrafiltration system, 51 spiral wound, polysulfone membrane with 20000 Da molecular weight cut off (DDS,Nakskov, Denmark) at 50 ˚C, such that the pressure difference between the two sides of membran...

Feasibility of Bioenergy Production from Ultrafiltration Whey Permeate Using the UASB Reactors