Ocloo, FCKRay, Suprakas SEmmambux, NM2019-05-072019-05-072019-05Ocloo, F.C.K., Ray, S.S. and Emmambux, N.M. 2019. Effects of stearic acid and irradiation alone and in combination on properties of amylose-lipid nanomaterial from high amylose maize starch. Carbohydrate Polymers, vol 212, pp. 352-3600144-86171879-1344https://doi.org/10.1016/j.carbpol.2019.02.065https://www.sciencedirect.com/science/article/pii/S0144861719302103http://hdl.handle.net/10204/10971Copyright: 2019 Elsevier. Due to copyright restrictions, the attached PDF file only contains the abstract version of the full-text item. For access to the full-text item, please consult the publisher's website. The definitive version of the work is published in Carbohydrate Polymers, vol 212, pp. 352-360This study determines the effects of stearic acid and gamma irradiation, alone and in combination, on properties of amylose-lipid nanomaterials from pasted high amylose maize starch (HAMS) with and without alpha amylase hydrolysis. HAMS was incorporated with stearic acid (0, 1.5% and 5%, w/w), irradiated at 0, 30 and 60 kGy and pasted under pressure in a rheometer. Isolated materials after thermostable alpha amylase or hot water washing were freeze-dried and characterised using differential scanning calorimetry (DSC), X-ray diffraction (XRD), Atomic Force Microscopy (AFM) and Transmission Electron Microscopy (TEM). The isolated materials contain amylose-lipid complexes (ALCs) as determined by DSC and XRD. Pasting of gamma irradiated HAMS produced type I ALCs, whereas that for un-irradiated HAMS produced type II ALCs. The ALCs occurred at nanoscale with sizes ranging from 10 to 110 nm as observed with AFM and TEM. Tailor-made ALCs nanomaterials can be produced from HAMS (with and without added stearic acid).enAmylose-lipid nanomaterialsAFMDifferential scanning calorimetryTransmission Electron MicroscopyStarchStearic acidWide angle x-ray scatteringWAXSTEMDSCSEMArticleOcloo, F., Ray, S. S., & Emmambux, N. (2019). Effects of stearic acid and irradiation alone and in combination on properties of amylose-lipid nanomaterial from high amylose maize starch. http://hdl.handle.net/10204/10971Ocloo, FCK, Suprakas S Ray, and NM Emmambux "Effects of stearic acid and irradiation alone and in combination on properties of amylose-lipid nanomaterial from high amylose maize starch." (2019) http://hdl.handle.net/10204/10971Ocloo F, Ray SS, Emmambux N. Effects of stearic acid and irradiation alone and in combination on properties of amylose-lipid nanomaterial from high amylose maize starch. 2019; http://hdl.handle.net/10204/10971.TY - Article AU - Ocloo, FCK AU - Ray, Suprakas S AU - Emmambux, NM AB - This study determines the effects of stearic acid and gamma irradiation, alone and in combination, on properties of amylose-lipid nanomaterials from pasted high amylose maize starch (HAMS) with and without alpha amylase hydrolysis. HAMS was incorporated with stearic acid (0, 1.5% and 5%, w/w), irradiated at 0, 30 and 60 kGy and pasted under pressure in a rheometer. Isolated materials after thermostable alpha amylase or hot water washing were freeze-dried and characterised using differential scanning calorimetry (DSC), X-ray diffraction (XRD), Atomic Force Microscopy (AFM) and Transmission Electron Microscopy (TEM). The isolated materials contain amylose-lipid complexes (ALCs) as determined by DSC and XRD. Pasting of gamma irradiated HAMS produced type I ALCs, whereas that for un-irradiated HAMS produced type II ALCs. The ALCs occurred at nanoscale with sizes ranging from 10 to 110 nm as observed with AFM and TEM. Tailor-made ALCs nanomaterials can be produced from HAMS (with and without added stearic acid). DA - 2019-05 DB - ResearchSpace DP - CSIR KW - Amylose-lipid nanomaterials KW - AFM KW - Differential scanning calorimetry KW - Transmission Electron Microscopy KW - Starch KW - Stearic acid KW - Wide angle x-ray scattering KW - WAXS KW - TEM KW - DSC KW - SEM LK - https://researchspace.csir.co.za PY - 2019 SM - 0144-8617 SM - 1879-1344 T1 - Effects of stearic acid and irradiation alone and in combination on properties of amylose-lipid nanomaterial from high amylose maize starch TI - Effects of stearic acid and irradiation alone and in combination on properties of amylose-lipid nanomaterial from high amylose maize starch UR - http://hdl.handle.net/10204/10971 ER -