Determination of tertiary butylhydroquinone in edible vegetable oil by liquid chromatography/ion trap mass spectrometry

Hao, Peng-Peng; Ni, Jinren; Sun, Weiling; Huang, Wen

doi:10.1016/j.foodchem.2007.04.058

Cited by 40 publications

(12 citation statements)

References 12 publications

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“…Recent epidemiological studies have revealed that synthetic phenolic antioxidants such as buthylated hydroxytoluene (BHT), buthylated hydroxyanisole (BHA) and tert -butylhydroquinone (TBHQ) can effectively inhibit lipid oxidation [ 5 ]. However, these synthetic antioxidants are restricted by legislative rules because of the doubts over their toxicity and carcinogenicity in many countries [ 6 , 7 ]. Thus, in order to protect human beings against oxidative damage, considerable attention has been paid to explore the natural and safer antioxidants.…”

Section: Introductionmentioning

confidence: 99%

Phenolic Compounds and Antioxidant Activity of Bulb Extracts of Six Lilium Species Native to China

et al. 2012

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Lily (Lilium) is used as an important edible and medical plant species with a vague taxonomic classification and a long history in China. Bulbs of six Lilium species (L. regale, L. concolor, L. pumilum, L. leucanthum, L. davidii var. unicolor and L. lancifolium) native to China were investigated with a view to their exploitation as a potential source of natural antioxidants due to their phenolic composition and dietary antioxidant potential. The results showed that all bulb extracts exhibited strong antioxidant activities, which generally correlated positively with the total phenolic contents (r = 0.68 to 0.94), total flavonoid contents (r = 0.51 to 0.89) and total flavanol contents (r = 0.54 to 0.95). High-performance liquid chromatography (HPLC) analysis revealed that rutin and kaempferol were the major phenolic components in the extracts. Hierarchical cluster analysis showed that L. regale belonged to the group with high phenolic content and strong antioxidant power. L. concolor and L. pumilum were arranged in one group characterized by moderate phenolic content and antioxidant capacity, while L. leucanthum, L. davidii var. unicolor and L. lancifolium were clustered in the third group with low phenolic content and weak antioxidant activity. These strongly suggest that lily bulbs may serve as a potential source of natural antioxidant for food and pharmaceutical applications.

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Section: Introductionmentioning

confidence: 99%

Phenolic Compounds and Antioxidant Activity of Bulb Extracts of Six Lilium Species Native to China

et al. 2012

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“…Recent epidemiological studies have revealed the associations between the consumption of antioxidant-rich foods and the prevention of oxidative-stress-related diseases [ 6 , 7 , 8 ]. However, synthetic antioxidants such as butylated hydroxyanisole (BHA), butylated hydroxytoluene (BHT) and tert -butylhydroquinone (TBHQ) are restricted by legislative rules because of doubts over their toxicity and carcinogenicity in many countries [ 9 , 10 ]. In order to protect foods and human beings against oxidative damage, considerable attention has been paid to explore the natural and safer antioxidants, which could be used for human consumption.…”

Section: Introductionmentioning

confidence: 99%

Free-Radical Scavenging Properties and Reducing Power of Grape Cane Extracts from 11 Selected Grape Cultivars Widely Grown in China

et al. 2011

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Total phenolic contents (TPC), total flavonoid contents (TFC), related antioxidative and antiradical capabilities of grape cane extracts from 11 varieties (five V. vinifera cultivars and six Chinese wild grapes) widely grown in China were evaluated. Antioxidant properties were determined as DPPH and ABTS radical-scavenging abilities, superoxide anion and hydroxyl radical and hydrogen peroxide scavenging assays, as well as reducing power. Phenolic profiles of the extracts were characterized by using high-performance liquid chromatography (HPLC) techniques. All extracts exhibited strong antioxidant and effective free radical inhibition activities (EC50 values), which generally correlated negatively with TPC (r = −0.804 to −0.918) and TFC (r = −0.749 to −0.888). In comparison with gallic acid, Trolox and tert-butylhydroquinone (positive controls), most grape cane extracts showed more efficient scavenging effects toward different reactive oxygen species. HPLC analysis revealed the presence of (+)-catechin, (−)-epicatechin, and trans-resveratrol as major phenolic components in the extracts. These results suggest that grape cane extracts may serve as a potential source of natural antioxidant for food and pharmaceutical application.

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“…A number of published papers described their spectrophotometric [9][10][11][12][13] or spectrofluorimetric determination [14]. Liquid chromatography [15][16][17][18] mostly in combination with electrochemical detection [19][20][21], with diode array detector [22,23] and also with mass spectrometer [24][25][26] has been applied for these purposes also. Gas chromatography with various detection methods [27][28][29][30] is an alternative available way for antioxidants determination.…”

Section: Central European Journal Of Chemistrymentioning

confidence: 99%

Differentiation between phenol- and amino-substances in voltammetry determination of synthetic antioxidants in oils

et al. 2010

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Abstract:The paper describes a method of voltammetric determination of antioxidants in lubricating oils developed with the use of Linear Sweep Voltammetry (LSV) and Fast Scan Differential Pulse Voltammetry (FSDPV). Experimental conditions have been found for simultaneous determination of phenol-based antioxidants and amino-antioxidants: the phenols can be electrochemically oxidized using the polarisation of gold disc electrode (AuDE) in the potential range of 0-1400 mV in 0.2 M H 2 SO 4 in the presence of ethanol and acetonitrile at the ratio of 3:1. Secondary aromatic amines can be determined directly in this supporting electrolyte; the presence of phenolic antioxidants does not interfere with this analysis. On the other hand, secondary aromatic amines interfere with the determination of phenolic substances; therefore, the amines present have to be eliminated in a suitable way. A procedure for masking the aromatic amines using their reaction with nitrous acid has been suggested and optimised. The nitrosamines thus formed can be used for sensitive and selective determination of amino-antioxidants by means of cathodic reduction on the hanging mercury drop electrode (HMDE) using Fast Scan Differential Pulse Voltammetry. The method was applied in analysis of real samples of lubricating oils. © Versita Sp. z o.o.

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Determination of tertiary butylhydroquinone in edible vegetable oil by liquid chromatography/ion trap mass spectrometry

Cited by 40 publications

References 12 publications

Phenolic Compounds and Antioxidant Activity of Bulb Extracts of Six Lilium Species Native to China

Phenolic Compounds and Antioxidant Activity of Bulb Extracts of Six Lilium Species Native to China

Free-Radical Scavenging Properties and Reducing Power of Grape Cane Extracts from 11 Selected Grape Cultivars Widely Grown in China

Differentiation between phenol- and amino-substances in voltammetry determination of synthetic antioxidants in oils

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