Preparation and characterization of inclusion complexes between debranched maize starches and conjugated linoleic acid

Jong Yeop Seok, Dong Jin Lee, Seung Taik Lim, Chagam Koteswara Reddy

Research output: Contribution to journalArticle

Abstract

Normal and high amylose maize starches were enzymatically debranched at different degrees, and then used for the preparation of inclusion complexes with conjugated linoleic acid (CLA). The recovery yield of CLA, percent ratio of CLA in the complexes to its initial amount, was increased by debranching, reaching 65% with a debranched high amylose starch (24 h). High amylose starch was more effective in the formation of CLA complexes with greater stability and crystallinity than normal starch. Both V6I and II crystals were formed by the complexation with CLA, and more V6II crystal was formed as the debranching and complexation times increased. However, an excessive complexation reaction for 24 h at 90 °C resulted in decreasing the CLA recovery, especially when normal maize starch was used. X-ray diffraction analysis revealed that B type crystals induced by starch recrystallization were also present during the complex formation. The enzymatic debranching facilitated the formation of crystalline complexes with CLA having a high thermal stability. The enzymatic debranching of starch enhanced the formation of crystalline complexes with CLA and availability of linear starch chains to form the complexes with CLA.

Original languageEnglish
Pages (from-to)503-509
Number of pages7
JournalFood Hydrocolloids
Volume96
DOIs
Publication statusPublished - 2019 Nov 1

Fingerprint

Linoleic acid
Conjugated Linoleic Acids
conjugated linoleic acid
corn starch
Starch
Zea mays
starch
Amylose
Complexation
amylose
crystals
Crystals
Crystalline materials
Recovery
thermal stability
X-ray diffraction
X-Ray Diffraction
X ray diffraction analysis
Thermodynamic stability
Hot Temperature

Keywords

  • Conjugated linoleic acid
  • Debranched starches
  • High amylose maize starch
  • Inclusion complexes

ASJC Scopus subject areas

  • Food Science
  • Chemistry(all)
  • Chemical Engineering(all)

Cite this

Preparation and characterization of inclusion complexes between debranched maize starches and conjugated linoleic acid. / Seok, Jong Yeop; Lee, Dong Jin; Lim, Seung Taik; Reddy, Chagam Koteswara.

In: Food Hydrocolloids, Vol. 96, 01.11.2019, p. 503-509.

Research output: Contribution to journalArticle

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