TY - JOUR
AU - Sakai, Shinji
AB - Determination of the fatty acid composition of sunflower (Helianthus annua L.) seeds by near‐infrared (NIR) spectroscopy was examined. Sunflower seeds were husked (removed from their hulls by a husking machine or manually with a knife). NIR spectra of these seeds were scanned from 1100 to 2500 nm at 2‐nm intervals in a whole‐grain cell with a wideangle moving drawer for machine‐husked seeds or in a single‐grain cup for a manually husked single‐grain seed. The extracted oils from machine‐husked seeds also were scanned by sandwiching them between a pair of slide glasses to create a thin layer and by placing them on a syrup cup. For extracted oil, the absorption band around 1720 nm filled out to the shorter wavelength region in the NIR second‐derivative spectra as the percentage of the linoleic acid moiety increased, because linoleic acid absorbs in this region. On the other hand, for husked seeds and for a single‐grain seed, as the percentage of linoleic acid increased, the trough at 1724 nm where oleic and saturated acids absorb decreased in the second‐derivative NIR spectra. Determination of the fatty acid composition of sunflower seeds could be carried out successfully according to the NIR spectral pattern for both extracted oil (r=−0.989) and kernel seed (r=−0.993). This is important, especially for a manually husked single‐grain seed (r=−0.971), because it can still be germinated after such nondestructive analysis.
TI - Nondestructive determination of fatty acid composition of husked sunflower (Helianthus annua L.) seeds by near‐infrared spectroscopy
JF - Journal of the American Oil Chemists' Society
DO - 10.1007/BF02540985
DA - 1995-10-01
UR - https://www.deepdyve.com/lp/wiley/nondestructive-determination-of-fatty-acid-composition-of-husked-e1t09gUbkO
SP - 1177
EP - 1183
VL - 72
IS - 10
DP - DeepDyve
ER -