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Fabjanowicz M, Różańska A, Abdelwahab NS, Pereira-Coelho M, Haas ICDS, Madureira LADS, Płotka-Wasylka J. An analytical approach to determine the health benefits and health risks of consuming berry juices. Food Chem 2024; 432:137219. [PMID: 37647705 DOI: 10.1016/j.foodchem.2023.137219] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Revised: 07/30/2023] [Accepted: 08/17/2023] [Indexed: 09/01/2023]
Abstract
Food products composition analysis is a prerequisite for verification of product quality, fulfillment of regulatory enforcements, checking compliance with national and international food standards, contracting specifications, and nutrient labeling requirements and providing quality assurance for use of the product for the supplementation of other foods. These aspects also apply to the berry fruit and berry juice. It also must be noted that even though fruit juices are generally considered healthy, there are many risks associated with mishandling both fruits and juices themselves. The review gathers information related with the health benefits and risk associated with the consumption of berry fruit juices. Moreover, the focus was paid to the quality assurance of berry fruit juice. Thus, the analytical methods used for determination of compounds influencing the sensory and nutritional characteristics of fruit juice as well as potential contaminants or adulterations.
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Affiliation(s)
- Magdalena Fabjanowicz
- Department of Analytical Chemistry, Faculty of Chemistry, Gdańsk University of Technology, 11/12 Narutowicza Street, 80-233 Gdańsk, Poland.
| | - Anna Różańska
- Department of Analytical Chemistry, Faculty of Chemistry, Gdańsk University of Technology, 11/12 Narutowicza Street, 80-233 Gdańsk, Poland
| | - Nada S Abdelwahab
- Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Beni-Suef University, Beni-Suef, Egypt
| | - Marina Pereira-Coelho
- Departament of Chemistry, Federal University of Santa Catarina, Des. Vitor Lima Av., Trindade, 88040-900 Florianópolis, SC, Brazil
| | - Isabel Cristina da Silva Haas
- Department of Food Science and Technology, Federal University of Santa Catarina, Admar Gonzaga Rd., 1346, Itacorubi, 88034-001 Florianópolis, SC, Brazil
| | | | - Justyna Płotka-Wasylka
- Department of Analytical Chemistry, Faculty of Chemistry, Gdańsk University of Technology, 11/12 Narutowicza Street, 80-233 Gdańsk, Poland; BioTechMed Center, Gdańsk University of Technology, 11/12 Narutowicza Street, 80-233 Gdańsk, Poland.
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2
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Pavlenko R, Berzina Z, Reinholds I, Bartkiene E, Bartkevics V. An Occurrence Study of Mycotoxins in Plant-Based Beverages Using Liquid Chromatography-Mass Spectrometry. Toxins (Basel) 2024; 16:53. [PMID: 38251269 PMCID: PMC10821093 DOI: 10.3390/toxins16010053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2023] [Revised: 01/11/2024] [Accepted: 01/16/2024] [Indexed: 01/23/2024] Open
Abstract
Mycotoxins are toxic mold metabolites that can adversely affect human and animal health. More than 400 mycotoxins have been identified so far. Cereals and nuts are the predominant mycotoxin-contaminated foodstuffs. Plant-based drinks produced from cereals, nuts, and legumes have grown in popularity. The mycotoxins accumulated in these crops may transfer to these beverages. A liquid chromatography-tandem mass spectrometry method was developed and optimized for the assessment of 22 mycotoxins in commercially available plant-based drinks in Latvia and Lithuania. A total of 64% of the seventy-two analyzed beverages were positive for one to sixteen mycotoxins, with deoxynivalenol, beauvericin, and enniatins A, B, B1, T-2, and HT-2 toxins detected most frequently. The European Commission has not yet set guidelines for the maximum mycotoxin concentrations in plant-based beverages, nor has the European Food Safety Authority conducted a risk assessment. Therefore, acute exposure studies were provided for the Latvian population based on the assumed replacement of dairy milk with plant-based beverages to ascertain the safety of plant-based milk substitutes. Based on the observed levels of mycotoxin prevalence and contamination levels and assumed exposure, it can be concluded that tested plant-based beverages may be relatively safe. However, exposure to emerging mycotoxins should be considered.
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Affiliation(s)
- Romans Pavlenko
- Institute of Food Safety, Animal Health and Environment “BIOR”, Lejupes Iela 3, LV-1076 Riga, Latvia; (R.P.); (Z.B.); (V.B.)
| | - Zane Berzina
- Institute of Food Safety, Animal Health and Environment “BIOR”, Lejupes Iela 3, LV-1076 Riga, Latvia; (R.P.); (Z.B.); (V.B.)
| | - Ingars Reinholds
- Institute of Food Safety, Animal Health and Environment “BIOR”, Lejupes Iela 3, LV-1076 Riga, Latvia; (R.P.); (Z.B.); (V.B.)
| | - Elena Bartkiene
- Department of Food Safety and Quality, Lithuanian University of Health Sciences, Tilzes Street 18, LT-47181 Kaunas, Lithuania;
| | - Vadims Bartkevics
- Institute of Food Safety, Animal Health and Environment “BIOR”, Lejupes Iela 3, LV-1076 Riga, Latvia; (R.P.); (Z.B.); (V.B.)
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Gupta A, Sanwal N, Bareen MA, Barua S, Sharma N, Joshua Olatunji O, Prakash Nirmal N, Sahu JK. Trends in functional beverages: Functional ingredients, processing technologies, stability, health benefits, and consumer perspective. Food Res Int 2023; 170:113046. [PMID: 37316029 DOI: 10.1016/j.foodres.2023.113046] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Revised: 04/20/2023] [Accepted: 05/22/2023] [Indexed: 06/16/2023]
Abstract
The World Health Organization's emphasis on the health benefits of functional foods and beverages that has contributed to the rise in its popularity globally. Besides these consumers have become more aware of the importance of their food composition and nutrition. Among the fastest-growing market segments within the functional food industries, the functional drinks market focuses on fortified beverages or products that are novel with improved bioavailability of bioactive compounds, and their implicated health benefits. The bioactive ingredients in functional beverages include phenolic compounds, minerals, vitamins, amino acids, peptides, unsaturated fatty acids, etc. which can be obtained from plant, animal and microorganisms. The types of functional beverages which are globally intensifying the markets are pre-/pro-biotics, beauty drinks, cognitive and immune system enhancers, energy and sports drink produced via several thermal and non-thermal processes. Researchers are focusing on improving the stability of the active compounds by encapsulation, emulsion, and high-pressure homogenization techniques to strengthen the positive consumer perspective in functional beverages. However, more research is needed in terms of bioavailability, consumer safety, and sustainability of the process. Hence, product development, storage stability, and sensory properties of these products are vital for consumer acceptance. This review focuses on the recent trends and developments in the functional beverages industry. The review provides a critical discussion on diverse functional ingredients, bioactive sources, production processes, emerging process technologies, improvement in the stability of ingredients and bioactive compounds. This review also outlines the global market and consumer perception of functional beverages with the future perspective and scope.
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Affiliation(s)
- Achala Gupta
- Food and Bioprocess Engineering Lab, Centre for Rural Development and Technology, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
| | - Nikita Sanwal
- Food and Bioprocess Engineering Lab, Centre for Rural Development and Technology, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
| | - Mohammed A Bareen
- Food and Bioprocess Engineering Lab, Centre for Rural Development and Technology, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India; The University of Queensland-Indian Institute of Technology Delhi Academy of Research, New Delhi 110016, India; School of Agriculture and Food Sciences, The University of Queensland, Brisbane, QLD 4072, Australia
| | - Sreejani Barua
- Agricultural and Food Engineering Department, Indian Institute of Technology Kharagpur, Kharagpur, West Bengal 721302, India
| | - Nitya Sharma
- Food and Bioprocess Engineering Lab, Centre for Rural Development and Technology, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
| | - Opeyemi Joshua Olatunji
- Traditional Thai Medical Research and Innovation Center, Faculty of Traditional Thai Medicine, Prince of Songkla University, Hat Yai 90110, Thailand; African Genome Center, Mohammed VI Polytechnic University, Ben Guerir 43150, Morocco
| | - Nilesh Prakash Nirmal
- Institute of Nutrition, Mahidol University, 999 Phutthamonthon 4 Rd., Salaya, Nakhon Pathom 73170, Thailand.
| | - Jatindra K Sahu
- Food and Bioprocess Engineering Lab, Centre for Rural Development and Technology, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India.
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Pérez-Marroquín XA, Estrada-Fernández AG, García-Ceja A, Aguirre-Álvarez G, León-López A. Agro-Food Waste as an Ingredient in Functional Beverage Processing: Sources, Functionality, Market and Regulation. Foods 2023; 12:foods12081583. [PMID: 37107379 PMCID: PMC10137751 DOI: 10.3390/foods12081583] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Revised: 04/01/2023] [Accepted: 04/06/2023] [Indexed: 04/29/2023] Open
Abstract
Waste generated from the agro-food industry represents a concerning environmental, social and economic issue. The Food and Agriculture Organization of the United Nations defines food waste as all food that decreases in quantity or quality to the extent that it is thrown out by food service providers and consumers. The FAO reports that 17% of worldwide food production may be wasted. Food waste may include fresh products, food close to the expiration date discarded by retailers and food products from household kitchens and eating establishments. However, food waste offers different possibilities to extract functional ingredients from different sources, such as dairy, cereals, fruits, vegetables, fibers, oils, dye and bioactive compounds. The optimization of agro-food waste as an ingredient will help in the development and innovation of food products to generate functional food and beverages to prevent and treat several diseases in consumers.
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Affiliation(s)
- Xóchitl Alejandra Pérez-Marroquín
- Instituto de Ciencias Agropecuarias, Universidad Autónoma del Estado de Hidalgo, Av. Universidad Km. 1 Rancho Universitario, Tulancingo C.P. 43600, Hidalgo, Mexico
| | - Ana Guadalupe Estrada-Fernández
- Instituto Tecnológico Superior del Oriente del Estado de Hidalgo, Carretera Apan-Tepeapulco Km 3.5, Colonia Las Peñitas, Apan C.P. 43900, Hidalgo, Mexico
| | - Adelfo García-Ceja
- Instituto Tecnológico Superior de Venustiano Carranza, Av. Tecnológico S/N, Col. el Huasteco, Ciudad Lázaro Cárdenas, Venustiano Carranza C.P 73049, Puebla, Mexico
| | - Gabriel Aguirre-Álvarez
- Instituto de Ciencias Agropecuarias, Universidad Autónoma del Estado de Hidalgo, Av. Universidad Km. 1 Rancho Universitario, Tulancingo C.P. 43600, Hidalgo, Mexico
| | - Arely León-López
- Instituto Tecnológico Superior de Venustiano Carranza, Av. Tecnológico S/N, Col. el Huasteco, Ciudad Lázaro Cárdenas, Venustiano Carranza C.P 73049, Puebla, Mexico
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Detoxification impacts of dietary probiotic and prebiotic supplements against aflatoxins: an updated knowledge. ANNALS OF ANIMAL SCIENCE 2023. [DOI: 10.2478/aoas-2023-0026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/18/2023]
Abstract
Abstract
The widespread prevalence of food pollutants seriously threatens human and animal health. Mycotoxins are secondary metabolites primarily formed by toxigenic fungal genera, including Aspergillus, Penicillium, Fusarium, and Alternaria, demonstrating one of the principal pollutants in diets or feed products. Mycotoxin contamination in food can harm health, including stunted development, immune system suppression, infertility, vomiting, and gastrointestinal and cancerous conditions. These effects can occur both acutely and chronically. The complex food chain can be contaminated with mycotoxins at any point, including during harvest, industrial processing, shipping, or storage, putting the food sector under societal pressure owing to the waste generated by infected goods. One of the biological controls of mycotoxin is provided by probiotics and prebiotics, controlled as foods and dietary supplements made of bacteria or yeast. Aflatoxin's bioavailability and gastrointestinal absorption can be reduced using various probiotics and prebiotics.
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Maleš I, Pedisić S, Zorić Z, Elez-Garofulić I, Repajić M, You L, Vladimir-Knežević S, Butorac D, Dragović-Uzelac V. The medicinal and aromatic plants as ingredients in functional beverage production. J Funct Foods 2022. [DOI: 10.1016/j.jff.2022.105210] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022] Open
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Zhou H, Yan Z, Wu A, Liu N. Mycotoxins in Tea ((Camellia sinensis (L.) Kuntze)): Contamination and Dietary Exposure Profiling in the Chinese Population. Toxins (Basel) 2022; 14:toxins14070452. [PMID: 35878190 PMCID: PMC9318285 DOI: 10.3390/toxins14070452] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Revised: 06/18/2022] [Accepted: 06/20/2022] [Indexed: 02/01/2023] Open
Abstract
Tea is popular worldwide with multiple health benefits. It may be contaminated by the accidental introduction of toxigenic fungi during production and storage. The present study focuses on potential mycotoxin contamination in tea and the probable dietary exposure assessments associated with consumption. The contamination levels for 16 mycotoxins in 352 Chinese tea samples were determined by ultra-performance liquid chromatography–tandem mass spectrometry. Average concentrations of almost all mycotoxins in tea samples were below the established regulations, except for ochratoxin A in the dark tea samples. A risk assessment was performed for the worst-case scenarios by point evaluation and Monte Carlo assessment model using the obtained mycotoxin levels and the available green, oolong, black, and dark tea consumption data from cities in China. Additionally, we discuss dietary risk through tea consumption as beverages and dietary supplements. In conclusion, there is no dietary risk of exposure to mycotoxins through tea consumption in the Chinese population.
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Affiliation(s)
| | | | | | - Na Liu
- Correspondence: ; Tel.: +86-21-54920716
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9
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Pallarés N, Tolosa J, Ferrer E, Berrada H. Mycotoxins in raw materials, beverages and supplements of botanicals: A review of occurrence, risk assessment and analytical methodologies. Food Chem Toxicol 2022; 165:113013. [PMID: 35523385 DOI: 10.1016/j.fct.2022.113013] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Revised: 03/20/2022] [Accepted: 04/10/2022] [Indexed: 12/30/2022]
Abstract
Over recent years, consumer interest in natural products, such as botanicals has increased considerably. One of the factors affecting their quality is the presence of mycotoxins. This review focuses on exploring the mycotoxin occurrence in botanicals (raw material and ready-to-eat forms such as infusions or tablets) and the risk assessment due to their ingestion. Aflatoxins, Ochratoxin A, and Fumonisins are the most commonly studied mycotoxins and data in the literature report levels ranging from traces to 1000 μg/kg in raw materials. In general, the highest contents observed in raw materials decreased to unconcerning levels after the preparation of the infusions, reaching values that generally do not exceed 100 μg/L. Regarding botanical dietary supplements, the levels observed were lower than those reported for other matrices, although higher levels (of up to 1000 μg/kg) have been reported in some cases. Risk assessment studies in botanicals revealed a higher risk when they are consumed as tablets compared to infusions. Analytical methodologies implied in mycotoxin determination have also been contemplated. In this sense, liquid chromatography coupled to fluorescence detection has been the most frequently employed analytical technique, although in recent years tandem mass spectrometry has been widely used.
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Affiliation(s)
- N Pallarés
- Laboratory of Toxicology and Food Chemistry, Faculty of Pharmacy, University of Valencia, Burjassot, 46100, Valencia, Spain
| | - J Tolosa
- Laboratory of Toxicology and Food Chemistry, Faculty of Pharmacy, University of Valencia, Burjassot, 46100, Valencia, Spain
| | - E Ferrer
- Laboratory of Toxicology and Food Chemistry, Faculty of Pharmacy, University of Valencia, Burjassot, 46100, Valencia, Spain.
| | - H Berrada
- Laboratory of Toxicology and Food Chemistry, Faculty of Pharmacy, University of Valencia, Burjassot, 46100, Valencia, Spain
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Penczynski KJ, Cramer B, Dietrich S, Humpf HU, Abraham K, Weikert C. Mycotoxins in Serum and 24-h Urine of Vegans and Omnivores from the Risks and Benefits of a Vegan Diet (RBVD) Study. Mol Nutr Food Res 2022; 66:e2100874. [PMID: 35072972 DOI: 10.1002/mnfr.202100874] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Revised: 12/17/2021] [Indexed: 11/05/2022]
Abstract
Scope Vegans might have a higher exposure to mycotoxins due to their heightened consumption of typical mycotoxin containing food sources. Yet, data on internal exposure among vegans in comparison to omnivores are currently lacking. Methods and Results This cross-sectional study included 36 vegans and 36 omnivores (50% females, 30-60 years). A set of 28 and 27 mycotoxins was analyzed in 24-h urine and serum samples, respectively, by validated multi-mycotoxin methods (HPLC-MS/MS). Ochratoxin A (OTA), 2'R-OTA, and enniatin B in serum as well as deoxynivalenol-glucuronide in 24-h urine were quantified in 57 to 100% of the samples. Serum OTA levels were twofold higher in vegans than in omnivores (median 0.24 versus 0.12 ng/mL; P <0.0001). No further significant differences were observed. Serum OTA levels were associated with intake of "vegan products" (r = 0.50, P <0.0001) and "pasta & rice" (r = 0.33, P = 0.006). Sensitivity analyses advise cautious interpretation. Furthermore, serum levels of 2'R-OTA were related to coffee consumption (r = 0.64, P <0.0001). Conclusion Our results indicate a higher exposure of vegans to OTA, but not to other mycotoxins. However, larger studies with repeated measurements are required to better evaluate the exposure to mycotoxins from plant-based diets. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Katharina J Penczynski
- Department of Food Safety, German Federal Institute for Risk Assessment, Berlin, 10589, Germany
| | - Benedikt Cramer
- Institute of Food Chemistry, Westfälische Wilhelms-Universität Münster, Münster, 48149, Germany
| | - Stefan Dietrich
- Department of Food Safety, German Federal Institute for Risk Assessment, Berlin, 10589, Germany
| | - Hans-Ulrich Humpf
- Institute of Food Chemistry, Westfälische Wilhelms-Universität Münster, Münster, 48149, Germany
| | - Klaus Abraham
- Department of Food Safety, German Federal Institute for Risk Assessment, Berlin, 10589, Germany
| | - Cornelia Weikert
- Department of Food Safety, German Federal Institute for Risk Assessment, Berlin, 10589, Germany
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Liu L, Xie M, Wei D. Biological Detoxification of Mycotoxins: Current Status and Future Advances. Int J Mol Sci 2022; 23:ijms23031064. [PMID: 35162993 PMCID: PMC8835436 DOI: 10.3390/ijms23031064] [Citation(s) in RCA: 32] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Revised: 01/14/2022] [Accepted: 01/17/2022] [Indexed: 02/01/2023] Open
Abstract
Mycotoxins are highly toxic metabolites produced by fungi that pose a huge threat to human and animal health. Contamination of food and feed with mycotoxins is a worldwide issue, which leads to huge financial losses, annually. Decades of research have developed various approaches to degrade mycotoxins, among which the biological methods have been proved to have great potential and advantages. This review provides an overview on the important advances in the biological removal of mycotoxins over the last decade. Here, we provided further insight into the chemical structures and the toxicity of the main mycotoxins. The innovative strategies including mycotoxin degradation by novel probiotics are summarized in an in-depth discussion on potentialities and limitations. We prospected the promising future for the development of multifunctional approaches using recombinant enzymes and microbial consortia for the simultaneous removal of multiple mycotoxins.
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Affiliation(s)
- Lu Liu
- Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, State Key Laboratory of Applied Microbiology Southern China, Guangdong Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou 510070, China;
- Engineering Research Center of Starch and Vegetable Protein Processing Ministry of Education, Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, School of Food Science and Engineering, South China University of Technology, Wushan Road 381, Guangzhou 510641, China
| | - Mei Xie
- Food Science and Technology Program, Beijing Normal University-Hong Kong Baptist University United International College, Zhuhai 519087, China;
| | - Dong Wei
- Engineering Research Center of Starch and Vegetable Protein Processing Ministry of Education, Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, School of Food Science and Engineering, South China University of Technology, Wushan Road 381, Guangzhou 510641, China
- Correspondence: ; Tel.: +86-20-8711-3849
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Chmangui A, Jayasinghe GDTM, Driss MR, Touil S, Bermejo-Barrera P, Bouabdallah S, Moreda-Piñeiro A. Assessment of trace levels of aflatoxins AFB1 and AFB2 in non-dairy beverages by molecularly imprinted polymer based micro solid-phase extraction and liquid chromatography-tandem mass spectrometry. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2021; 13:3433-3443. [PMID: 34259236 DOI: 10.1039/d1ay00793a] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
A selective molecularly imprinted polymer (MIP) adsorbent was synthesised and used in a batch micro-solid phase extraction format for isolating aflatoxins (AFB1, and AFB2) from non-dairy beverages before liquid chromatography-tandem mass spectrometry determination. MIP synthesis (precipitation polymerization in 3 : 1 acetonitrile/toluene as a porogen) was performed with 5,7-dimethoxycoumarin (DMC), methacrylic acid (MAA) and divinylbenzene-80 (DVB) as a dummy template, functional monomer and cross-linker, respectively (1 : 4 : 20 molar ratio). 2,2'-Azobisisobutyronitrile (AIBN) was used as a polymerization initiator. The adsorbent MIP (50 mg) was enclosed in a cone-shaped polypropylene membrane (porous membrane protected molecularly imprinted micro-solid phase extraction), and parameters such as sample pH, mechanical (orbital-horizontal) shaking, the extraction time (loading stage), the composition of the eluting solution, and the desorption time were optimised. The highest extraction yields were obtained by using 5 mL of non-dairy beverages (pH adjusted at 6.0), and mechanical shaking (150 rpm) for 15 min. Elution was performed with 5 mL of an acetonitrile/formic acid (97.5 : 2.5) mixture under ultrasound (325 W, 35 kHz) for 15 min. After eluate evaporation to dryness and re-dissolution in 150 μL of the mobile phase, the pre-concentration factor of the method was 33.3, which yields limits of detection within the 0.085-0.207 μg L-1 range. In addition, the current proposal was shown to be an accurate and precise method through relative standard deviation of intraday and inter-day assays below 18% and analytical recoveries in the range of 91-104%. However, the method was found to suffer from matrix effects.
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Affiliation(s)
- Anis Chmangui
- Trace Element, Spectroscopy and Speciation Group (GETEE), Strategic Grouping in Materials (AEMAT), Department of Analytical Chemistry, Nutrition and Bromatology, Faculty of Chemistry, Universidade de Santiago de Compostela, Avenida das Ciencias, s/n, 15782-Santiago de Compostela, Spain.
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