Submitted to: Meeting Abstract
Publication Type: Abstract only
Publication Acceptance Date: 5/15/2001
Publication Date: 10/14/2001
Citation: RAM, M.S., DOWELL, F.E., SEITZ, L.M. POSTER PRESENTATION AT 2001 AACC ANNUAL MEETING: OBSERVATIONS ON THE NAOH TEST FOR RED AND WHITE WHEAT. MEETING ABSTRACT. 2001. POSTER PRESENTATION. Interpretive Summary:
Technical Abstract: Soaking wheat kernels in NaOH solution causes the difference in color to be enhanced. Red wheat turns a darker red and white wheat turns straw yellow upon soaking in NaOH solution. To understand the chemistry of this reaction, chromatographic and spectroscopic studies have been initiated. Acidified extracts have been analyzed by HPLC. Chromatograms from red, white wheat showed minor differences and were compared to those from scabb and rain-bleached wheat which appeared to have lost some pigmentation. Vibrational spectroscopic studies (FT-IR, FT-Raman, IR-microscopy) of whole wheat and wheat bran are being continued. Initial results of chromatographic and spectroscopic studies of red and white wheat as it relates to the NaOH test will be presented.