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An integrated fingerprinting and kinetic approach to accelerated shelf-life testing of chemical changes in thermally treated carrot puree
被引:27
作者:
Kebede, Biniam T.
[1
]
Grauwet, Tara
[1
]
Magpusao, Johannes
[1
]
Palmers, Stijn
[1
]
Michiels, Chris
[1
]
Hendrickx, Marc
[1
]
Van Loey, Ann
[1
]
机构:
[1] Katholieke Univ Leuven, Ctr Food & Microbial Technol, Dept Microbial & Mol Syst M2S, B-3001 Heverlee, Belgium
来源:
关键词:
Thermal sterilisation;
Carrot puree;
Accelerated shelf-life testing;
Headspace GC-MS fingerprinting;
Kinetic modelling;
Chemical reactions;
PRESSURE HIGH-TEMPERATURE;
STRECKER DEGRADATION;
SENSORY ATTRIBUTES;
FOOD QUALITY;
IDENTIFICATION;
VOLATILES;
AROMA;
L;
D O I:
10.1016/j.foodchem.2015.01.074
中图分类号:
O69 [应用化学];
学科分类号:
081704 ;
摘要:
To have a better understanding of chemical reactions during shelf-life, an integrated analytical and engineering toolbox: "fingerprinting-kinetics" was used. As a case study, a thermally sterilised carrot puree was selected. Sterilised purees were stored at four storage temperatures as a function of time. Fingerprinting enabled selection of volatiles clearly changing during shelf-life. Only these volatiles were identified and studied further. Next, kinetic modelling was performed to investigate the suitability of these volatiles as quality indices (markers) for accelerated shelf-life testing (ASLT). Fingerprinting enabled selection of terpenoids, phenylpropanoids, fatty acid derivatives, Strecker aldehydes and sulphur compounds as volatiles clearly changing during shelf-life. The amount of Strecker aldehydes increased during storage, whereas the rest of the volatiles decreased. Out of the volatiles, based on the applied kinetic modelling, myristicin, alpha-terpinolene, beta-pinene, alpha-terpineol and octanal were identified as potential markers for ASLT. (C) 2015 Elsevier Ltd. All rights reserved.
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页码:94 / 102
页数:9
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