Preparation and characterization of aqueous dispersions of dextrin and policosanol composites

Jong Yea Kim, Ju Hun Lee, Du Yun Jeong, Dong Kyun Jang, Tae Rang Seo, Seung Taik Lim

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Policosanol (50-100 mg) was dispersed in an aqueous solution (0.5-2.0% solids, w/v, 50 mL) of an amylomaize starch dextrin at 90 °C under different conditions. The dispersion of the mixture was opaque but remained homogenous for up to 7 days at an ambient temperature. The precipitates obtained by centrifuging the dispersion (5000 × g, 30 min) contained crystalline V-amylose complex of policosanol. The supernatant also contained policosanol but not in the complex form. Stepwise addition of policosanol and longer time complex formation increased the dispersible policosanol: about 95% by 30 min interval, 1.0% dextrin solution and 12 h complex formation time. Among the dispersible policosanol (95%), 70% policosanol resided in the precipitates and 25% was in the supernatant, indicating the dextrin behaved as a stabilizer for the dispersed policosanol as well as a complex forming agent with policosanol. The policosanol dispersion was sonicated up to 30 s to evaluate physical stability. Around 70% policosanol in the dispersion remained stable against the sonication treatment.

Original languageEnglish
Pages (from-to)140-146
Number of pages7
JournalCarbohydrate Polymers
Volume121
DOIs
Publication statusPublished - 2015 May 5

Fingerprint

policosanol
Dispersions
Composite materials
Precipitates
Sonication
Starch
Crystalline materials
caloreen

Keywords

  • Aqueous dispersion
  • Dextrin
  • Inclusion complex
  • Policosanol
  • V-amylose

ASJC Scopus subject areas

  • Organic Chemistry
  • Materials Chemistry
  • Polymers and Plastics

Cite this

Preparation and characterization of aqueous dispersions of dextrin and policosanol composites. / Kim, Jong Yea; Lee, Ju Hun; Jeong, Du Yun; Jang, Dong Kyun; Seo, Tae Rang; Lim, Seung Taik.

In: Carbohydrate Polymers, Vol. 121, 05.05.2015, p. 140-146.

Research output: Contribution to journalArticle

Kim, Jong Yea ; Lee, Ju Hun ; Jeong, Du Yun ; Jang, Dong Kyun ; Seo, Tae Rang ; Lim, Seung Taik. / Preparation and characterization of aqueous dispersions of dextrin and policosanol composites. In: Carbohydrate Polymers. 2015 ; Vol. 121. pp. 140-146.
@article{5079f3819a904e8bb0496f49466ba0f9,
title = "Preparation and characterization of aqueous dispersions of dextrin and policosanol composites",
abstract = "Policosanol (50-100 mg) was dispersed in an aqueous solution (0.5-2.0{\%} solids, w/v, 50 mL) of an amylomaize starch dextrin at 90 °C under different conditions. The dispersion of the mixture was opaque but remained homogenous for up to 7 days at an ambient temperature. The precipitates obtained by centrifuging the dispersion (5000 × g, 30 min) contained crystalline V-amylose complex of policosanol. The supernatant also contained policosanol but not in the complex form. Stepwise addition of policosanol and longer time complex formation increased the dispersible policosanol: about 95{\%} by 30 min interval, 1.0{\%} dextrin solution and 12 h complex formation time. Among the dispersible policosanol (95{\%}), 70{\%} policosanol resided in the precipitates and 25{\%} was in the supernatant, indicating the dextrin behaved as a stabilizer for the dispersed policosanol as well as a complex forming agent with policosanol. The policosanol dispersion was sonicated up to 30 s to evaluate physical stability. Around 70{\%} policosanol in the dispersion remained stable against the sonication treatment.",
keywords = "Aqueous dispersion, Dextrin, Inclusion complex, Policosanol, V-amylose",
author = "Kim, {Jong Yea} and Lee, {Ju Hun} and Jeong, {Du Yun} and Jang, {Dong Kyun} and Seo, {Tae Rang} and Lim, {Seung Taik}",
year = "2015",
month = "5",
day = "5",
doi = "10.1016/j.carbpol.2014.12.050",
language = "English",
volume = "121",
pages = "140--146",
journal = "Carbohydrate Polymers",
issn = "0144-8617",
publisher = "Elsevier Limited",

}

TY - JOUR

T1 - Preparation and characterization of aqueous dispersions of dextrin and policosanol composites

AU - Kim, Jong Yea

AU - Lee, Ju Hun

AU - Jeong, Du Yun

AU - Jang, Dong Kyun

AU - Seo, Tae Rang

AU - Lim, Seung Taik

PY - 2015/5/5

Y1 - 2015/5/5

N2 - Policosanol (50-100 mg) was dispersed in an aqueous solution (0.5-2.0% solids, w/v, 50 mL) of an amylomaize starch dextrin at 90 °C under different conditions. The dispersion of the mixture was opaque but remained homogenous for up to 7 days at an ambient temperature. The precipitates obtained by centrifuging the dispersion (5000 × g, 30 min) contained crystalline V-amylose complex of policosanol. The supernatant also contained policosanol but not in the complex form. Stepwise addition of policosanol and longer time complex formation increased the dispersible policosanol: about 95% by 30 min interval, 1.0% dextrin solution and 12 h complex formation time. Among the dispersible policosanol (95%), 70% policosanol resided in the precipitates and 25% was in the supernatant, indicating the dextrin behaved as a stabilizer for the dispersed policosanol as well as a complex forming agent with policosanol. The policosanol dispersion was sonicated up to 30 s to evaluate physical stability. Around 70% policosanol in the dispersion remained stable against the sonication treatment.

AB - Policosanol (50-100 mg) was dispersed in an aqueous solution (0.5-2.0% solids, w/v, 50 mL) of an amylomaize starch dextrin at 90 °C under different conditions. The dispersion of the mixture was opaque but remained homogenous for up to 7 days at an ambient temperature. The precipitates obtained by centrifuging the dispersion (5000 × g, 30 min) contained crystalline V-amylose complex of policosanol. The supernatant also contained policosanol but not in the complex form. Stepwise addition of policosanol and longer time complex formation increased the dispersible policosanol: about 95% by 30 min interval, 1.0% dextrin solution and 12 h complex formation time. Among the dispersible policosanol (95%), 70% policosanol resided in the precipitates and 25% was in the supernatant, indicating the dextrin behaved as a stabilizer for the dispersed policosanol as well as a complex forming agent with policosanol. The policosanol dispersion was sonicated up to 30 s to evaluate physical stability. Around 70% policosanol in the dispersion remained stable against the sonication treatment.

KW - Aqueous dispersion

KW - Dextrin

KW - Inclusion complex

KW - Policosanol

KW - V-amylose

UR - http://www.scopus.com/inward/record.url?scp=84920863701&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84920863701&partnerID=8YFLogxK

U2 - 10.1016/j.carbpol.2014.12.050

DO - 10.1016/j.carbpol.2014.12.050

M3 - Article

C2 - 25659682

AN - SCOPUS:84920863701

VL - 121

SP - 140

EP - 146

JO - Carbohydrate Polymers

JF - Carbohydrate Polymers

SN - 0144-8617

ER -