Preparation and characterization of chemically modified high amylose maize starch-ascorbyl palmitate inclusion complexes in mild reaction condition. (May 2021)

• Record Type: Journal Article
• Authors: Zhou, Dingpeng; Liu, Shaowei; Song, Haoyu; Liu, Xue; Tang, Xiaozhi
• Is Part Of: Lebensmittel-Wissenschaft + Technologie =. Volume 142(2021)
• Publication Date: 2021-05
• Subjects: Ascorbyl palmitate -- Chemical modification -- High amylose maize starch -- Stability; AP ascorbyl palmitate -- HS high amylose maize starch -- DSC differential scanning calorimetry -- FTIR fourier transforms infrared -- ΔH enthalpy change -- To onset temperature -- Tp peak temperature -- Tc conclusion temperature -- XRD X-ray diffraction; Food industry and trade -- Periodicals; Food -- Composition -- Periodicals; Microbiology -- Periodicals; Nutrition -- Periodicals; 664.005
• DOI: 10.1016/j.lwt.2021.110983
• Languages: English
• ISSNs: 0023-6438

Abstract

Abstract: Acetylation (0.48, 1.03, and 2.06%) and oxidation (0.48, 0.97, and 1.91%) of high amylose maize starch (HS) were used to encapsulate ascorbyl palmitate (AP). The V-amylose inclusion complexes could be prepared without pre-autoclaving HS. AP could be effectively encapsulated into modified HS (3.43–6.86%), and the modified complexes exhibited increased solubility and stability in an aqueous environment than the unmodified complex. AP in modified complexes exhibited similar stability against light and oxidation with the unmodified complex. Both modifications decreased the crystalline area, peak melting temperature, and enthalpy. Accordingly, the stability of AP in modified complexes against heat treatment was reduced. This study could expand the useable range of high amylose starch inclusion complex with AP and other ligands, especially in an aqueous environment. Highlights: The introduction of acetyl and carboxyl groups increased solubility of complexes. There was an optimum degree of acetylation for improving loading efficiency. The crystallinity and thermostability decreased with the substitution degree. AP in modified complexes exhibited similar stability against light and oxidation.