Production of glucooligosaccharides and polydextrose by extrusion reactor

Jae-Kwan Hwang, Chul Jin Kim, Chong Tal Kim

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Glucose mixed with citric acid as a catalyst was extruded and polymerized using twin screw extruder with 40 of L/D (length/diameter) ratio at 160, 180 and 200°C, where the polymerization yields of glucose were 43.9%, 75.0% and 93.7%, respectively. Gel permeation chromatography of glucose extradates showed that the higher molecular weight fractions increased with extrusion temperature, which also resulted in increasing hydrodynamic intrinsic viscosity. Glucooligosaccharide and polydextrose produced by extrusion of glucose were stable for thermal treatments over a wide range of pH 3.0-11.0. In addition, a-amylase and amyloglucosidase treatment did not affect the solution viscosity, indicating the random linkages of glucose and thus the potential applications as dietary fiber. This research clearly demonstrated that the extrusion reactor can be successfully utilized to produce glucooligosaccharide and polydextrose from glucose rapidly and continuously in conjunction with selective control of polymerized composition.

Original languageEnglish
Pages (from-to)104-107
Number of pages4
JournalStarch/Staerke
Volume50
Issue number2-3
DOIs
Publication statusPublished - 1998 Jan 1

Fingerprint

polydextrose
extrusion
Extrusion
Glucose
glucose
Viscosity
viscosity
Glucan 1,4-alpha-Glucosidase
extruders
Dietary Fiber
Gel permeation chromatography
Extruders
Hydrodynamics
Amylases
screws
catalysts
amylases
Citric Acid
citric acid
Polymerization

All Science Journal Classification (ASJC) codes

  • Food Science
  • Organic Chemistry

Cite this

Hwang, Jae-Kwan ; Kim, Chul Jin ; Kim, Chong Tal. / Production of glucooligosaccharides and polydextrose by extrusion reactor. In: Starch/Staerke. 1998 ; Vol. 50, No. 2-3. pp. 104-107.
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Production of glucooligosaccharides and polydextrose by extrusion reactor. / Hwang, Jae-Kwan; Kim, Chul Jin; Kim, Chong Tal.

In: Starch/Staerke, Vol. 50, No. 2-3, 01.01.1998, p. 104-107.

Research output: Contribution to journalArticle

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AB - Glucose mixed with citric acid as a catalyst was extruded and polymerized using twin screw extruder with 40 of L/D (length/diameter) ratio at 160, 180 and 200°C, where the polymerization yields of glucose were 43.9%, 75.0% and 93.7%, respectively. Gel permeation chromatography of glucose extradates showed that the higher molecular weight fractions increased with extrusion temperature, which also resulted in increasing hydrodynamic intrinsic viscosity. Glucooligosaccharide and polydextrose produced by extrusion of glucose were stable for thermal treatments over a wide range of pH 3.0-11.0. In addition, a-amylase and amyloglucosidase treatment did not affect the solution viscosity, indicating the random linkages of glucose and thus the potential applications as dietary fiber. This research clearly demonstrated that the extrusion reactor can be successfully utilized to produce glucooligosaccharide and polydextrose from glucose rapidly and continuously in conjunction with selective control of polymerized composition.

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