Investigation by ICP-MS of trace element levels in vegetable edible oils produced in Spain

Llorent‐Martínez, Eulogio J.; Ortega‐Barrales, P.; Córdova, M.L. Fernández-de; Domínguez‐Vidal, Ana; Ruiz-Medina, A.

doi:10.1016/j.foodchem.2011.01.064

Cited by 143 publications

(66 citation statements)

References 16 publications

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“…Microwave-assisted digestion has been performed to dissolve the oil sample for elemental analysis in a large number of papers (Angioni et al, 2006;Ansari et al, 2009;Levine et al, 1999;Llorent-Martinez et al, 2011a, 2011bMendil et al, 2009;Sant'Ana et al, 2007), while focused microwave assisted digestion for the same purpose has been employed in a few papers (Sant'Ana et al, 2007). As shown in Table 1, some investigation have been done on microwave digestion for olive oil using various procedures.…”

Section: Acid Digestionmentioning

confidence: 99%

“…Minimum Maximum Fe 12.5* 139.0 (Anthemidis et al, 2005;Benincasa et al, 2007;Buldini et al, 1997;Calapaj et al, 1988;Cindric et al, 2007); De Leonardis et al, 2000;Llorent-Martinez et al, 2011a, 2011bMartin-Polvillo et al, 1994;Mendil et al, 2009;Nunes et al, 2011;Pehlivan et al, 2008;Zeiner et al, 2005) Cu 1.7* 4.51 (Angioni et al, 2006;Anthemidis et al, 2005;Buldini et al, 1997;Calapaj et al, 1988;Castillo et al, 1999;Cindric et al, 2007;De Leonardis et al, 2000;Galeano Diaz et al, 2006;Jimenez et al, 2003;Karadjova et al, 1998;Llorent-Martinez et al, 2011a, 2001bMartin-Polvillo et al, 1994;Mendil et al, 2009;Nunes et al, 2011;Pehlivan et al, 2008;Zeiner et al, 2005) Ni 10.6* 2.26 (Benincasa et al, 2007;Buldini et al, 1997;Calapaj et al, 1988;Castillo et al, 1999;Cindric et al, 2007;Nunes et al, 2011;Zeiner et al, 2005) Zn 0.6* 4.61 (Angioni et al, 2006;Cindric et al, 2007;…”

Section: Flow Injectionunclassified

“…The analytical techniques used for metal determinations in oils are both emission and absorption spectrophotometry. ICP-OES (Allen et al, 1998;Angioni et al, 2006 ;Anthedimis et al, 2005;Costa et al, 2001;De Souza et al, 2005;Murillo et al, 1999;Zeiner et al, 2005), FAAS (Batı & Cesur, 2002;Carbonell et al, 1991;Köse Baran & Bağdat Yaşar, 2010;Nunes et al, 2011), ETA-AAS (Karadjova et al, 1998;Kowalewska et al, 1999 ;Zeiner et al, 2005), GFAAS (Allen et al,1998 ;Ansari et al, 2009;Calapaj et al, 1988;Chen et al, 1999;Cindric et al, 2007;De Leonardis et al, 2000;Hendrikse et al, 1988Hendrikse et al, , 1991Lacoste et al, 1999;Martin-Polvillo et al, 1994 ;Matos Reyes & Campos, 2006;Mendil et al, 2009;Nash et al, 1983;Van Dalen, 1996), and ICP-MS (Benincasa et al, 2007 ;Bettinelli et al, 1995;Llorent-Martinez et al, 2011a, 2011bPereira et al, 2010;Wondimu et al, 2000) are the most commonly used techniques for the determination of metal contents in oils (Duyck et al, 2007).…”

Section: Introductionmentioning

confidence: 99%

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Metal Determinations in Olive Oil

Yaşar¹,

Baran²,

Alkan³

2012

Olive Oil - Constituents, Quality, Health Properties and Bioconversions

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Section: Acid Digestionmentioning

confidence: 99%

Section: Flow Injectionunclassified

Section: Introductionmentioning

confidence: 99%

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Metal Determinations in Olive Oil

Yaşar¹,

Baran²,

Alkan³

2012

Olive Oil - Constituents, Quality, Health Properties and Bioconversions

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“…Therefore, ICP-MS is considered to be one of the most effective tools for determining the provenance of tea (Chudzinska et al, 2012;Herwig et al, 2011). This technique has been employed for the determination of trace metals in olive oil (Llorent-Martínez et al, 2011), honey (Chudzinska and Baralkiewicz 2011), tomato (Bressy et al, 2013), and particularly in tea. The number of studies on the application of this technique to tea has increased in recent years (Chudzinska and Baralkiewicz 2011;Llorent-Martínez et al, 2012;Pilgrim et al, 2010), but these studies only dealt with identifying the geographical origin of tea samples, and not with associating location with the types of tea.…”

Section: Introductionmentioning

confidence: 99%

“…This technique has been employed for the determination of trace metals in olive oil (Llorent-Martínez et al, 2011), honey (Chudzinska and Baralkiewicz 2011), tomato (Bressy et al, 2013, and particularly in tea. The number of studies on the application of this technique to tea has increased in recent years (Chudzinska and Baralkiewicz 2011;Llorent-Martínez et al, 2012;Pilgrim et al, 2010), but these Q. Han et al 1110 studies only dealt with identifying the geographical origin of tea samples, and not with associating location with the types of tea.Sample digestion is a critical step in most analytical methods for the routine determination of trace elements in food samples.Many procedures have been developed to shorten analysis time and minimize problems associated with solid sample pretreatment, such as sample contamination and analyte loss (Korn et al, 2008).Digestion with an acid in combination with microwave irradiation has been a widely used method because it improves the efficiency of analysis and reduces or eliminates the risk of sample contamination or analyte loss (Chudzinska and Baralkiewicz 2011;De Blas Bravo et al, 2007;Llorent-Martínez et al, 2011).However, special instruments are required, such as a microwave digestion oven, which is not found in every laboratory. Therefore, the development of a simple digestion method such as using a heating plate is necessary.…”

mentioning

confidence: 99%

Optimization of Tea Sample Preparation Methods for ICP-MS and Application to Verification of Chinese Tea Authenticity

Han

Mihara

Hashimoto

et al. 2014

FSTR

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In this study, 35 black, oolong, and green tea samples from China were analyzed by inductively coupled plasma mass spectrometry after a digestion method was developed on the basis of a response surface methodology. Linear discriminant analysis of whole data sets was performed in order to discriminate and classify Chinese tea samples according to their origin and type. The analysis revealed an excellent separation between tea samples according to their type and origin with a discrimination efficiency of 100%. The varieties of selected elements in Chinese tea were analyzed based on their origins and types. Keywords: tea, ICP-MS, minerals and trace elements, authenticity IntroductionTea (Camellia sinensis L) is a highly popular nonalcoholic beverage consumed by over two-thirds of the world's population owing to its medicinal and refreshing effects (Karak and Bhagat 2010). Since tea contains several essential nutrients and trace elements, drinking tea is considered beneficial for human health.The presence of heavy metals at trace levels in tea has received much attention because they are directly related to health.The efficacy of discriminating the geographical origin of teas is complicated by disparities in growing conditions such as soil and climate . The attributes of tea according to its geographical origin are also often recognized and appreciated by the consumers. Therefore, the discrimination of tea according to its geographical origin is presently the focus of attention (MoredaPiñeiro et al., 2003). However, it is not easy to determine its geographical origin by sensory evaluation. On the other hand, since elemental composition can provide accurate information about the provenance (Cubadda et al., 2006) of a tea sample, it is possible to identify the origin of tea on the basis of its elemental composition.In general, based on the different processing methods, teas are classified as: unfermented green tea (GT), fully fermented black tea (BT), and partially fermented oolong tea (OT), which are the most popular and frequently consumed teas in the world (Han et al., 2014). The processing method used affects the concentrations of elements in the processed tea. Therefore, the discrimination of tea types based on elemental fingerprinting is very urgent and important.Because of its low limit of detection (LOD) and multi-element measurement capability (Salomon et al., 2002), inductively coupled plasma mass spectrometry (ICP-MS) is used in a number of food analysis laboratories for determining elements at trace and ultratrace levels (Walczyk 2001). Therefore, ICP-MS is considered to be one of the most effective tools for determining the provenance of tea (Chudzinska et al., 2012;Herwig et al., 2011). This technique has been employed for the determination of trace metals in olive oil (Llorent-Martínez et al., 2011), honey (Chudzinska and Baralkiewicz 2011), tomato (Bressy et al., 2013, and particularly in tea. The number of studies on the application of this technique to tea has increased in recent years (Chudzinska ...

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Edible fats and oils

Knochen

Morales

2015

Handbook of Mineral Elements in Food

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Investigation by ICP-MS of trace element levels in vegetable edible oils produced in Spain

Cited by 143 publications

References 16 publications

Metal Determinations in Olive Oil

Metal Determinations in Olive Oil

Optimization of Tea Sample Preparation Methods for ICP-MS and Application to Verification of Chinese Tea Authenticity

Edible fats and oils

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