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Effects of amidation and/or methylesterification of pectin on aroma release at different calcium concentration

Title
Effects of amidation and/or methylesterification of pectin on aroma release at different calcium concentration
Authors
Kim, Min JungJu, Hyun KyoungKim, YangYoo, Sang-HoKim, Young-Suk
Ewha Authors
김영석
SCOPUS Author ID
김영석scopus
Issue Date
2016
Journal Title
FOOD HYDROCOLLOIDS
ISSN
0268-005XJCR Link1873-7137JCR Link
Citation
vol. 52, pp. 343 - 349
Keywords
Pectin gelMethylesterificationAmidationAroma releaseStatic headspace gas chromatography
Publisher
ELSEVIER SCI LTD
Indexed
SCI; SCIE; SCOPUS WOS scopus
Abstract
Four different types of low methoxyl pectins (LMPs) were prepared via amidation and methylesterification to investigate the release of 14 aroma compounds from different pectin gel systems at different calcium concentration. The release of aroma compounds was determined using static headspace gas chromatography analysis. Amidation and amidation combined by methylesterification increased aroma release from LMP gels compared to the non-treated ones at diverse calcium concentration, except amidated LMP at 0.09% calcium. On the other hand, methylesterified LMP reduced the release of most aroma compounds at 0.03-0.09% calcium concentration. Furthermore, treatment with pectin methylesterase increased the release of aroma compounds from amidated pectin but reduced their release from nonamidated pectin. Comparison of the release of a series of esters with different numbers of carbon atoms revealed increased release of compounds with up to six carbons, and then a decrease of those with up to ten in LMP, amidated LMP, and amidated and methylesterified pectin gel systems. (C) 2015 Elsevier Ltd. All rights reserved.
DOI
10.1016/j.foodhyd.2015.07.006
Appears in Collections:
엘텍공과대학 > 식품공학전공 > Journal papers
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