Heating Quality and Stability of Aqueous Enzymatic Extraction of Fatty Acid-Balanced Oil in Comparison with Other Blended OilsReportar como inadecuado




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Journal of Chemistry - Volume 2014 2014, Article ID 530787, 8 pages -

Research Article

Department of Food Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, China

Department of Home Economics, Faculty of Education Quality, Mansoura University, Mansoura, Dakahlia 35516, Egypt

Received 15 February 2014; Revised 5 May 2014; Accepted 13 May 2014; Published 28 May 2014

Academic Editor: Stavros Lalas

Copyright © 2014 Yang Li et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The heating performance of enzyme-assisted aqueous processing-extracted blended oil EAEPO, hexane-extracted blended oil HEBO, and three kinds of blended oils was investigated by varying the heating times. Oil degradation was monitored by analysis of the acid value AV, peroxide value PV, p-anisidine value p-AV, color, and trans-fatty acid composition. The fatty acid ratios of EAEPO, HEBO, and the three kinds of blended oils were very similar 0.27 : 1.03 : 0.96, 0.27 : 1.08 : 1.16, 0.27 : 0.65 : 0.8, 0.27 : 0.6 : 0.84, and 0.27 : 0.61 : 0.79, resp

The AV and color increased in proportion to the heating time for all the oils. There was a rapid increase in the PV and p-AV of EAEPO and HEBO after heating for only 1 h, whereas the other three blended oils showed a rapid increase after heating for 2 h or 6 h. Despite the highest trans-fatty acid content found for HEBO, this content was relatively low and remained low up to a heating time of 8 h. It was found that after heating, a fatty acid ratio relatively close to its ideal value 0.27 : 0.48 : 0.49 was maintained by EAEPO, which indicates that EAEPO is tolerant to heat treatment and is suitable for maintaining a healthy diet.





Autor: Yang Li, Dan Li, Baokun Qi, Sami Rokayya, Wenjun Ma, Jing Liang, Xiaonan Sui, Yan Zhang, and Lianzhou Jiang

Fuente: https://www.hindawi.com/



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