2. Academic Validation
  3. Synthetic mechanism of octenyl succinic anhydride modified corn starch based on shells separation pretreatment

Synthetic mechanism of octenyl succinic anhydride modified corn starch based on shells separation pretreatment

  • Int J Biol Macromol. 2021 Mar 1;172:483-489. doi: 10.1016/j.ijbiomac.2021.01.082.
Wei Gao 1,  Jie Sui 2,  Pengfei Liu 3,  Bo Cui 4,  A M Abd El-Aty 5
Affiliations

Affiliations

  • 1 State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology, Shandong Academy of Sciences, Jinan 250353, China; School of Food Science and Engineering, Qilu University of Technology, Shandong Academy of Sciences, Jinan, Shandong 250353, China; Department of Food Science and Engineering, Shandong Agricultural University, Taian 271018, China.
  • 2 Shandong Academy of Agricultural science, Jinan, Shandong 250131, China.
  • 3 State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology, Shandong Academy of Sciences, Jinan 250353, China; School of Food Science and Engineering, Qilu University of Technology, Shandong Academy of Sciences, Jinan, Shandong 250353, China.
  • 4 State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology, Shandong Academy of Sciences, Jinan 250353, China; School of Food Science and Engineering, Qilu University of Technology, Shandong Academy of Sciences, Jinan, Shandong 250353, China. Electronic address: [email protected].
  • 5 State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology, Shandong Academy of Sciences, Jinan 250353, China; Department of Pharmacology, Faculty of Veterinary Medicine, Cairo University, 12211 Giza, Egypt; Department of Medical Pharmacology, Medical Faculty, Ataturk University, Erzurum, Turkey. Electronic address: [email protected].
PMID: 33460654 DOI: 10.1016/j.ijbiomac.2021.01.082
Abstract

Herein, the synthetic mechanism of octenyl succinic anhydride (OSA) modified corn starch (OSCS) and granule shells (OSCs) based on shells separation pretreatment (SSP) was investigated. High intensity peaks around 1720 and 1570 cm-1 were observed for OSCs in Fourier transform infrared (FTIR) spectra after SSP. OSCs showed higher degree of substitution (DS) values (ranging from 0.128 to 0.170) than OSCS (0.121) determined by 1H NMR. The average molecular weight (Mw) of OSA modified CS decreased, due to the introduction of OS groups. X-ray diffraction (XRD) indicated that esterification mainly took place in the amorphous regions of starch granules. X-ray photoelectron spectroscopy (XPS) revealed that a new peak corresponding to 1s orbital electrons of Na was obtained due to the introduction of OSA molecules. Meanwhile, lower surface DS and higher fluorescence intensity were noticed for OSCs. Conclusively, SSP would significantly increase the reaction efficiency of OSA modification process of CS.

Keywords

Octenyl succinic anhydride; Shells separation pretreatment; Synthetic mechanism.

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