Impact of Drying on Meso-and Nanoscale Structures of Citrus Fiber: A Study by SFG, ATR-IR, XRD, and DLS

Mohamadamin Makarem, Hyojung Kim, Parinaz Emami, Jesus Melendez, Adam Steinbach, Tristan Lipkie, Isabelle Deleris, Christina Desmet, Jöel Wallecan, Seong H. Kim

Research output: Contribution to journalArticle

Abstract

Citrus fibers are a sidestream of the pectin extraction process from citrus peel. This sidestream can be converted into a functional ingredient through a shear-induced homogenization process. One technical challenge with this material is that dehydration and subsequent rehydration result in reduction of viscosity compared to the original product. In this study, various drying methods were compared with never-dried fibers to investigate the structural changes underlying the viscosity loss. Infrared and X-ray diffraction analyses confirmed no changes in chemical composition and crystalline structure of citrus fibers. The dynamic light scattering and sum frequency generation analyses of citrus fiber suspension showed that the rehydration process could not fully disperse aggregated fibers, which appears to be the main cause for the viscosity loss.

Original languageEnglish (US)
Pages (from-to)2718-2724
Number of pages7
JournalIndustrial and Engineering Chemistry Research
Volume59
Issue number7
DOIs
StatePublished - Feb 19 2020

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All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Chemical Engineering(all)
  • Industrial and Manufacturing Engineering

Cite this

Makarem, M., Kim, H., Emami, P., Melendez, J., Steinbach, A., Lipkie, T., Deleris, I., Desmet, C., Wallecan, J., & Kim, S. H. (2020). Impact of Drying on Meso-and Nanoscale Structures of Citrus Fiber: A Study by SFG, ATR-IR, XRD, and DLS. Industrial and Engineering Chemistry Research, 59(7), 2718-2724. https://doi.org/10.1021/acs.iecr.9b06194