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Interfacial Properties of Ultrahigh Methoxylated Pectin by Liu, Jingran; Tan, Jing; Hua, Xiao; Jiang, Zhumao; Wang, Mingming; Yang, Ruijin; Cao, Yanping is a Materials Science article available to read on EtoBox.

What is Interfacial Properties of Ultrahigh Methoxylated Pectin about?

The interfacial properties of ultrahigh methoxylated pectin (UHMP) prepared via esterification of citrus pectin (CP) were investigated. The intrinsic viscosity ([η]) of pectin was significantly decreased from 1211.5 mL/g to 294.9 mL/g as the degree of methylation (DM) increased from 63.18 ± 0.08% to 91.52 ± 0.11%. Surface tension (γ) analysis indicated that UHMP had a critical micelle concentration (CMC) of 0.8 g/L, which was slightly smaller than that of sugar beet pectin (SBP) (1.0 g/L). The morphology of the UHMP aggregation presented a network structure and irregular clusters at 10 μg/mL and 1 μg/mL based on atomic force microscopy (AFM). Transmission electron microscopy (TEM) observations further confirmed the self-aggregation behaviours and rod-like micelles of UHMP. The surface excess (Γ) was 1.69 ± 0.17 μmol/m for UHMP, which was lower than the values of SBP (1.88 ± 0.21 μmol/m) and CP (2.91 ± 0.57 μmol/m). Correspondingly, UHMP possessed the highest molecular area (A) of 0.99 ± 0.10 nm. Thus, UHMP was proposed to be more flexible and extendable at the interface. The interfacial shear rheology study suggested that UHMP was able to form an elastic-dominant interfacial film t

Who reads Interfacial Properties of Ultrahigh Methoxylated Pectin?

Author

Liu, Jingran; Tan, Jing; Hua, Xiao; Jiang, Zhumao; Wang, Mingming; Yang, Ruijin; Cao, Yanping

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 0141-8130)

Published

2020

Language

EN

Field

Materials Science (Physical Sciences)