Fig. 8: ATR FTIR spectroscopy indicates shed cell walls and red bodies have different lipid and carbohydrate composition.
From: Implicating the red body of Nannochloropsis in forming the recalcitrant cell wall polymer algaenan
Attenuated total reflectance Fourier transform infrared (ATR FTIR) spectroscopy of shed cell walls and red bodies (red sediment) and preparations enriched in only the shed cell walls or the red bodies. Baseline corrected absorbance spectra are shown, vertically scaled to equal heights. Molecular vibration assignments are annotated above bands that are colorcoded with their associations to the dominant biological classes of molecules. Classes, their label colors, and approximate wavenumber locations (cm−1) are as follows: lipids (purple: 3100−2800, 1500−1300, 1240 and 1171, 721−718); non-peptide carbonyl (orange: 1750−1700), protein (light green for Amide I: 1690−1600, dark green for Amide II: 1600−1480), polysaccharide (blue: numerous features between 1300−900).
