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Determination of odor release in hydrocolloid model systems containing original or carboxylated cellulose at different ph values using static headspace gas chromatographic (SHS-GC) analysis

Title
Determination of odor release in hydrocolloid model systems containing original or carboxylated cellulose at different ph values using static headspace gas chromatographic (SHS-GC) analysis
Authors
Lee S.M.Shin G.-O.Park K.M.Chang P.-S.Kim Y.-S.
Ewha Authors
김영석이상미
SCOPUS Author ID
김영석scopus; 이상미scopus
Issue Date
2013
Journal Title
Sensors (Switzerland)
ISSN
1424-8220JCR Link
Citation
vol. 13, no. 3, pp. 2818 - 2829
Indexed
SCIE; SCOPUS WOS scopus
Abstract
Static headspace gas chromatographic (SHS-GC) analysis was performed to determine the release of 13 odorants in hydrocolloid model systems containing original or regio-selectively carboxylated cellulose at different pH values. The release of most odor compounds was decreased in the hydrocolloid solutions compared to control, with the amounts of 2-propanol, 3-methyl-1-butanol, and 2,3-butanedione released into the headspace being less than those of any other odor compound in the hydrocolloid model systems. However, there was no considerable difference between original cellulose-containing and carboxylated-cellulose containing systems in the release of most compounds, except for relatively long-chain esters such as ethyl caprylate and ethyl nonanoate. The release from the original and carboxylated cellulose solutions controlled to pH 10 was significantly higher than that from solutions adjusted to pH 4 and 7 in the case of some esters (ethyl acetate, methyl propionate, ethyl propionate, ethyl butyrate, butyl propionate, ethyl caproate) and alcohols (2-propanol, 3-methyl-1-butanol), in particular, ethyl butyrate and 3-methyl-1-butanol. In contrast, the release of 2,3-butanedione from both the original and carboxylated cellulose solutions was increased at pH 4 and 7 compared to that at pH 10 by about 70% and 130%, respectively. Our study demonstrated that the release of some odorants could be changed significantly by addition of both original and carboxylated cellulose in hydrocolloid model systems, but only minor effect was observed in pH of the solution. © 2013 by the authors; licensee MDPI, Basel, Switzerland.
DOI
10.3390/s130302818
Appears in Collections:
엘텍공과대학 > 식품공학전공 > Journal papers
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