Volume 7, Issue 2 (June 2020)                   J. Food Qual. Hazards Control 2020, 7(2): 75-83 | Back to browse issues page

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Kumar R, Bhattacharya B, Agarwal T, Chakkaravarthi S. Trans Fatty Acid Analysis of Frying Oil Using ATR-FTIR Spectroscopy: A Study on Indian Traditional Snack Foods. J. Food Qual. Hazards Control. 2020; 7 (2) :75-83
URL: http://jfqhc.ssu.ac.ir/article-1-592-en.html
Department of Basic and Applied Sciences, National Institute of Food Technology Entrepreneurship and Management, Kundli, Sonepat, Haryana, India , chakkaravarthi77@gmail.com
Abstract:   (131 Views)
Background: Trans Fatty Acid (TFA) content in oil is an important quality parameter due to its adverse health effect. This study was aimed to examine the TFA content in the frying oil used by street food vendors in India for two traditional snack foods.
Methods: Totally, 143 oil samples were collected at different frying times (0, 2, and 4 h) from five different vendors for Samosa and Jalebi. TFA levels of the oil samples were analyzed by Attenuated Total Reflection-Fourier Transform Infrared Spectroscopy (ATR-FTIR). Statistical analyses were carried out using SPSS software version 23.0.
Results: ATR-FTIR spectra exhibited an increase in peak intensity at 966 cm-1 with different frying time in both frying oil samples, indicating the formation of TFA. The TFA content in oils fried at 4 h was significantly higher than the ones at 0 and 2 intervals. It was found that 3 out of 74 (4%) Samosa fried oils and 12 out of 69 (17.4%) Jalebi fried oils were over the maximum allowed regulatory limit of TFA (5%). Jalebi fried oils had significantly higher TFA content than Samosa fried oils.
Conclusion: The increase in frying time decreased the peroxide values and increased saturated fatty acids and TFA values of oils used for both food items. The local vendors and consumers should be educated by national authorities regarding health risk of TFA in street fried snacks.

DOI: 10.18502/jfqhc.7.2.2887
Full-Text [PDF 563 kb]   (60 Downloads)    
Type of Study: Original article | Subject: Special
Received: 19/05/12 | Accepted: 20/01/13 | Published: 20/06/18

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