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http://dx.doi.org/10.5713/ajas.2002.427

The Effect of Roasting Temperature on the Formation of Volatile Compounds in Chinese-Style Pork Jerky  

Chen, W.S. (Dept. of Animal Products Processing, Taiwan Livestock Research Institute, Council of Agriculture)
Liu, D.C. (Dept. of Animal Science, National Chung-Hsing University)
Chen, M.T. (Dept. of Animal Science, National Chung-Hsing University)
Publication Information
Asian-Australasian Journal of Animal Sciences / v.15, no.3, 2002 , pp. 427-431 More about this Journal
Abstract
The purpose of this work was to study the effect of roasting temperature on the production of volatile compounds in Chinese-style pork jerky. The pork jerky was roasted by far-infrared grill at $150^{\circ}C$ or $200^{\circ}C$ for 5 min. The analysis of volatile compounds using a Likens-Nickerson apparatus coupled to a gas chromatograph and a mass spectrometer enabled us to identify 21 volatile compounds. The results showed that the volatile compounds coming from pork jerky can be divided into two groups in accordance with their possible origins. The first group of volatile compounds derived from oxidation of lipid included hexanal, ethylbenzene, nonanal, benzaldehyde, 2,4-decadienal, 1-octen-3-ol, octadecanal, and 9-octadecenal. The second group of volatile compounds generated from degradation of natural spices included 1,8-cinene, 4-terpineol, ${\alpha}$-terpineol, e-anethole, methyl-eugenol, panisaldehyde, elemol, eugenol, methyl-isoeugenol and myristicin. Significant differences (p<0.05) were found between 2 different roasted temperatures at levels for all volatile compounds.
Keywords
Chinese-Style Pork Jerky; Volatile Compound; Roast; Lipid; Spices;
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