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FTIR spectroscopic characterization of soy proteins obtained through AOT reverse micelles
- Source :
-
Food Hydrocolloids . Jun2013, Vol. 31 Issue 2, p435-437. 3p. - Publication Year :
- 2013
-
Abstract
- Abstract: Fourier transform infrared (FTIR) method was used to study the conformations of soy protein obtained through aqueous solution and bis(2-ethylhexyl) sodium sulfosuccinate (AOT) reverse micelle extraction. The results showed that there were changes in signal intensity and/or position of IR bands at 4000–400 cm−1 when the soy proteins were separated by two extraction methods. The FTIR spectral changes were subsequently assessed using the second derivative spectroscopy in the amide I region (1700–1600 cm−1). The contents of α-helix, β-sheet, turn and irregular conformations for soy proteins using aqueous solution extraction were 11.6%, 32.8%, 44.3% and 11.3%, respectively; while using AOT reverse micelle extraction 13.1%, 41.6%, 32.5% and 12.9%, respectively. The amount change of these structures might affect functional properties of soy proteins. [Copyright &y& Elsevier]
Details
- Language :
- English
- ISSN :
- 0268005X
- Volume :
- 31
- Issue :
- 2
- Database :
- Academic Search Index
- Journal :
- Food Hydrocolloids
- Publication Type :
- Academic Journal
- Accession number :
- 85253477
- Full Text :
- https://doi.org/10.1016/j.foodhyd.2012.11.017