Evaluation of multiple solid-phase microextraction as a technique to remove the matrix effect in packaging analysis for determination of volatile organic compounds

Ezquerro, Óscar; Pons, Begoña; Tena, Marı́a Teresa

doi:10.1016/j.chroma.2003.08.066

Cited by 36 publications

(18 citation statements)

References 13 publications

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“…The DVB-CAR-PDMS fibre was better than the CAR-PDMS fibre for MHS-SPME, since it provided a better exponential decay with the number of cycles and increased peak areas. Since MHS-SPME provides a total area value corresponding to an exhaustive extraction, independent of the type of matrix, 30 calibration can be carried out using aqueous solutions under extraction conditions different from those used to process the solid samples. Verbenone, borneol and camphor were the most abundant compounds in the rosemary extract analysed.…”

Section: Features Of the Methodsmentioning

confidence: 99%

“…Multiple headspace-SPME (MHS-SPME) 29 is a recent method developed to quantify solid samples, since it removes the influence of the matrix effect. 30 The technique is based on extrapolation to an exhaustive extraction of the compounds through three or four cycles of consecutive extractions from the same sample. In this way the total area can be calculated according to equation (1):…”

Section: Introductionmentioning

confidence: 99%

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Determination of volatile compounds in antioxidant rosemary extracts by multiple headspace solid-phase microextraction and gas chromatography

Carrillo

Tena

2006

Flavour Fragr. J.

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Rosemary extracts are commercialized as natural antioxidants that delay the lipid oxidation process. Residual amounts of rosemary odour-responsible volatile compounds, such as borneol, camphor and verbenone, can remain in the final extract. The presence of these compounds may be undesirable when the extracts are used as food or cosmetic additives. In this paper a MHS-SPME method is proposed to quantify 10 rosemary odour-responsible compounds in a commercial solid rosemary extract. Multiple headspace solid-phase microextraction (MHS-SPME) is a recent technique proposed to eliminate the matrix effect on the quantitative analysis of solid samples. This technique performs few consecutive extractions from the same sample, and the total area corresponding to an exhaustive extraction is calculated as the sum of individual area values obtained from each extraction or by using an equation. The most influential variables of the extraction process, such as type of fibre, temperature and extraction time, were studied. Extraction was carried out using 2.5 mg solid extract and a divinylbenzene-carboxen-polydimethylsiloxane (DVB-CAR-PDMS) fibre at 55°C for 60 min; calibration was carried out using aqueous standard solutions containing 1% (v/v) ethanol at 40°C for 45 min. The features of the method were established using aqueous standard solutions. Precision was 4-15%, expressed as RSD, and the method allowed detection limits of 0.4 -47 ng for p-cymene and verbenone, respectively. Finally, the method was applied to analyse a rosemary solid extract, and verbenone (356 µ µ µ µ µg/g), borneol (190 µ µ µ µ µg/g) and camphor (136 µ µ µ µ µg/g) were found to be the most abundant compounds.

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Section: Features Of the Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Determination of volatile compounds in antioxidant rosemary extracts by multiple headspace solid-phase microextraction and gas chromatography

Carrillo

Tena

2006

Flavour Fragr. J.

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“…As an equilibrium method, SPME depends on analyte partitioning between the sample and the fused silica fiber coated with a solid sorbent. María Teresa Tena and others (Ezquerro and others ) had proved that multiple SPME was useful to the direct quantification of solid samples removing any matrix effect, with water as reliable solvent to prepare the calibration solutions. Using the water as dilutors of samples for HS‐SPME‐GC‐MS analysis was also validated by Mesías and others ().…”

Section: Methodsmentioning

confidence: 99%

Influence of Enzymatic Extrusion Liquefaction Pretreatment for Chinese Rice Wine on the Volatiles Generated from Extruded Rice

et al. 2014

Journal of Food Science

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Volatile compounds in enzymatic extruded rice, produced under different conditions of varying barrel temperature (BT), α-amylase concentration (AC) and moisture content (MC), were extracted and identified by headspace solid phase microextraction (HS-SPME) and gas chromatography-linked mass spectrometry (GC-MS). Statistical analyses reflected that the Maillard reaction could be inhibited both by the mild extrusion conditions and the enhanced hydrolysis caused by thermostable α-amylase. Relative amounts of total volatiles in enzymatic extruded rice were far less than those in severe processed extruded rice. Reverse-phase high-performance liquid chromatography (RP-HPLC) showed that the amino acids (AAs) involved in Maillrad reaction were utmostly preserved in extruded rice with highest amylase concentration by comparison of total AA content of different extrudates. These results suggest that enzymatic extrusion liquefaction is an effective way to control the generation of volatiles from extruded rice for Chinese rice wine production.

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“…Acoplamentos entre técnicas para confirmar a identidade de compostos químicos têm sido relatados na literatura, tais como a cromatografia em fase gasosa acoplada à espectrometria de massas (CG-EM) [5][6][7]27,31,41,48,[50][51][52][53][54] e a cromatografia em fase gasosa acoplada à espectroscopia no infravermelho (CG-IV). 55,56 Feigenbaum et al 51 citam o emprego de CG-FTIR-EM com colunas longas e a injeção direta de extratos no cromatógrafo.…”

Section: Identificação E Quantificação De Compostos Voláteisunclassified

“…46,48 Uma variação desta técnica é a extração em múltiplos estágios, com o objetivo de eliminar a influência da matriz sólida (amostra) na análise quantitativa de componentes voláteis, uma vez que, teoricamente, sucessivas extrações ocasionam um declínio exponencial de extração, promovendo uma melhor recuperação dos analitos de interesse. 46 …”

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Contaminantes voláteis provenientes de embalagens plásticas: desenvolvimento e validação de métodos analíticos

Freire¹,

Bottoli²,

Fabris³

et al. 2008

Quím. Nova

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Recebido em 30/3/07; aceito em 20/9/07; publicado na web em 1/9/08 VOLATILE ORGANIC CONTAMINANTS FROM PLASTIC PACKAGING: DEVELOPMENT AND VALIDATION OF ANALYTICAL METHODS. Plastic packaging materials intended for use in food packaging is an area of great interest from the scientific and economic point of view due to the irreversible internationalization and globalization process of food products. Nevertheless, a debate related to food safety aspects has emerged within the scientific community. Therefore, the development of analytical methods that allow identifying and quantifying chemical substances of toxicological potential in the packaging is considered essential. This article focuses on the main analytical methods, including validation parameters, as well as extraction and quantification techniques for determination of volatile organic compounds from food packaging materials.Keywords: plastic packaging; volatiles; analytical methods. INTRODUÇÃOUm dos alvos mais importantes da indústria moderna de alimentos é satisfazer as demandas do consumidor pela oferta de produtos diversificados e de alta qualidade. Este alvo seria inatingível sem o uso de embalagens, tanto que a indústria de alimentos é a sua maior usuária final, contando com 35% da indústria global de embalagem, proporcionando ao mercado consumidor alimentos seguros, de alta funcionalidade e praticidade. Dentre os vários aspectos que demonstram a importância da embalagem, destaca-se a crescente internacionalização e globalização dos negócios que têm impulsionado muitas empresas a reconsiderar os fatores que contribuem para alcançar maior vantagem competitiva. Uma embalagem inovadora pode mudar a percepção e criar uma nova posição de marketing. Desta forma, verifica-se que a embalagem constitui-se de um negócio atrativo ao mundo industrializado e vem se tornando mais participativa em vários âmbitos, incluindo aqueles relacionados à logística. Este potencial de crescimento devese também a outros fatores, tais como os novos estilos de vida e de residências e consumidores ávidos por conveniência. 1Com relação a seus aspectos técnicos, a embalagem deve conter, preservar e proteger o produto, além de comunicar-se com o consumidor proporcionando detalhes sobre o conteúdo, tais como preço, capacidade, ingredientes, valor nutricional, instruções de uso e data de validade. Neste contexto, ressalta-se o uso das embalagens plásticas que têm crescido continuamente devido ao seu baixo peso e excelentes propriedades de barreira, proporcionando maior vida útil e distribuição a longas distâncias. A possibilidade de combinação com outros materiais associada ao desenvolvimento de tecnologias de acondicionamento cria oportunidades de aplicações muito diversificadas, favorecendo a expansão do uso de plásticos para praticamente todos os tipos de alimentos industrializados. 2,3Apesar da tão bem aceita conveniência oferecida pelos sistemas de embalagem plástica, muitas discussões têm emergido devido às questões de segurança alimentar e a impactos ambientais crescentes causados...

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Evaluation of multiple solid-phase microextraction as a technique to remove the matrix effect in packaging analysis for determination of volatile organic compounds

Cited by 36 publications

References 13 publications

Determination of volatile compounds in antioxidant rosemary extracts by multiple headspace solid-phase microextraction and gas chromatography

Determination of volatile compounds in antioxidant rosemary extracts by multiple headspace solid-phase microextraction and gas chromatography

Influence of Enzymatic Extrusion Liquefaction Pretreatment for Chinese Rice Wine on the Volatiles Generated from Extruded Rice

Contaminantes voláteis provenientes de embalagens plásticas: desenvolvimento e validação de métodos analíticos

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