Spectroscopy and Spectral Analysis, Volume. 32, Issue 9, 2579(2012)
X-Ray Diffraction Study of High Hydrostatic Pressure on Crystalline Structure of Different Type Starches
Crystalline changes of different type starches after high hydrostatic pressure treated under 300, 450, 600 MPa were studied by X-ray diffraction. Waxy maize (A type, 100% amylopectin), hylon Ⅶ (B type, 30% amylopectin) and tapioca starch (C type, 83% amylopectin) were chosen. The results indicated that for waxy maize starch, annealing effect was observed at 300 MPa, disappearance of crystalline structure happened at 450 MPa and retrogradation at 600 MPa. The results proved that the granule under high hydrostatic pressure processing experiences “three development stages” including annealling effect, disappearance of crystalline structure and recrystalline after granule disintegration.
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LIU Pei-ling, SHEN Qun, HU Xiao-song, WU Ji-hong. X-Ray Diffraction Study of High Hydrostatic Pressure on Crystalline Structure of Different Type Starches[J]. Spectroscopy and Spectral Analysis, 2012, 32(9): 2579
Received: Feb. 27, 2012
Accepted: --
Published Online: Sep. 26, 2012
The Author Email: Pei-ling LIU (lpl1023@126.com)