Journal article
Determination of Tert‐Butylhydroquinone in Vegetable Oils Using Surface‐Enhanced Raman Spectroscopy
Journal of food science, Vol.79(6), pp.T1225-T1230
06/2014
Handle:
https://hdl.handle.net/2376/107262
PMID: 24784825
Abstract
Monitoring the level of tert‐butylhydroquinone (TBHQ), a permissible antioxidant additive in edible vegetable oils in many countries, is important to ensure that oils and products that contain them comply with the relevant import regulations. Surface‐enhanced Raman spectroscopy (SERS) technology coupled with chemometric methods including partial least squares (PLS) and support vector machine (SVM) regression was applied to determine levels of TBHQ in spiked corn oils (0 to 500 mg/kg, n = 40) and commercial vegetable oils (0 to 99.7 mg/kg, n = 25). The lowest detectable concentration was 5 mg/L for TBHQ in standard solutions and 10 mg/kg of TBHQ in vegetable oils from various plant sources. The TBHQ levels predicted by the PLS or SVM model had a high correlation with actual TBHQ levels in commercial oil samples (SVM: R2 = 0.972, ratio of performance to deviation [RPD] = 5.55, root mean square error [RMSE] = 5.73 mg/kg; PLS: R2 = 0.976, RPD = 6.43, RMSE = 4.94 mg/kg), indicating great potential of SERS methods for detection and quantification of TBHQ in oils from a variety of sources.
Practical Application
This study provides an alternative approach for analysis of trace amounts of chemicals in complex food matrices with surface‐enhanced Raman spectroscopy.
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Details
- Title
- Determination of Tert‐Butylhydroquinone in Vegetable Oils Using Surface‐Enhanced Raman Spectroscopy
- Creators
- Yun Pan - Shanghai Ocean UnivKeqiang Lai - Shanghai Ocean UnivYuxia Fan - Shanghai Ocean UnivChunying Li - Shanghai Ocean UnivLu Pei - Shanghai Ocean UnivBarbara A Rasco - Washington State UnivYiqun Huang - Washington State Univ
- Publication Details
- Journal of food science, Vol.79(6), pp.T1225-T1230
- Academic Unit
- Food Science, School of
- Number of pages
- 6
- Grant note
- Natl. Natural Science Foundation of China (61250002; 31250006) Agricultural Research Center, Washington State Univ
- Identifiers
- 99900547089401842
- Language
- English
- Resource Type
- Journal article