Abstract
Abstract The use of Mid-infrared spectroscopy for the analysis of food products has only recently developped with the advent of Fourier Transformed spectroscopy and other techniques like Attenuated Total Reflectance, diffused reflection combined to the use of powerful micro-computers. We have recently reported to use a combination of multidimensional statistical analysis and Mid-FTIR spectroscopy for the quantitative determination of sugars in a biological sample. In this paper we have evaluated the use of such a method for the quantitative measurement of α-amino groups from ammo-acids, peptides and proteins. The spectral region where the characteristic absorption bands of such groups are located, ranges between 1200 cm-1 and 1900 cm-1. Water features a major absorption band in this region (1500–1700 cm-1). This superimpose with amide I and II bands. The standard deviation for each and every wavelength, calculated for all the spectra of the calibration set, show the existence of two absorption bands in th...
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
