Abstract
The optical absorption centres in corn pericarp biopolymers have been studied by photoacoustic spectroscopy and the phase-resolved technique. The results show that the optical absorption spectra of these samples are formed by the superposition of two absorption bands, one of these corresponding to the cellulose of the epidermis and the other to o-glucoside pigments of flavonoid type which are bound to hemicellulose sugars. A spatial separation was obtained of the materials responsible for these absorption bands as a function of the Ca(OH) 2 concentration used in the alkaline cooking process which is the result of hemicellulose dissolution in these biopolymers.
Sign-in/Register to access full text options 
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.
