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Lyu W, Ding M, Zhou Y, Jiang M, Li Y, Ding Y, Zhang Z, Wei X, Zhang X. A Highly Sensitive Electrochemical Sensor for Capsaicinoids and Its Application in the Identification of Illegal Cooking Oil. BIOSENSORS 2023; 13:863. [PMID: 37754097 PMCID: PMC10526801 DOI: 10.3390/bios13090863] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Revised: 08/28/2023] [Accepted: 08/30/2023] [Indexed: 09/28/2023]
Abstract
Capsaicinoids, mostly from chili peppers, are widely used in daily life. Capsaicinoids are considered to be markers for the identification of illegal cooking oil (ICO), which is a serious threat to public health. The identification of capsaicinoids can help reveal food-related fraud, thereby safeguarding consumers' health. Here, a novel and ultrasensitive method was established with a signal amplification strategy for the detection of capsaicinoids. AuNPs@Fe3O4 nanocomposites were functionalized with 4-aminothiophenol (4-atp). After diazotization, 4-atp on AuNPs@Fe3O4 reacted with capsaicinoids and formed capsaicinoids-azo-atp-AuNPs@Fe3O4. Ultimately, capsaicinoids-azo-atp-AuNPs@Fe3O4 was dropped onto the surface of a screen-printed carbon electrode (SPCE) and detected via the differential pulse voltammetry (DPV) method. AuNPs@Fe3O4 nanocomposites increased the specific surface area of the electrode. Moreover, the diazotization-coupling reaction enriched the analytes on the electrode surface. Liquid-liquid extraction was used for sample pretreatment. Under a pH value of 9.0 and concentration of 0.20 mol/L for the supporting electrolyte, the linearity of capsaicinoids in ICO is from 0.10 to 10.00 ng/mL, and the limit of detection (S/N = 3) is 0.05 ng/mL. This method is ultra-sensitive, reliable, and cost-effective for the detection of capsaicinoids. Herein, this method provides a promising tool for the identification of ICO.
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Affiliation(s)
- Wenjing Lyu
- Key Laboratory of Clinical Laboratory Diagnostics, Ministry of Education of China, School of Laboratory Medicine, Chongqing Medical University, Chongqing 400016, China; (W.L.); (M.D.); (Y.Z.); (M.J.); (Y.L.); (X.W.)
| | - Min Ding
- Key Laboratory of Clinical Laboratory Diagnostics, Ministry of Education of China, School of Laboratory Medicine, Chongqing Medical University, Chongqing 400016, China; (W.L.); (M.D.); (Y.Z.); (M.J.); (Y.L.); (X.W.)
| | - Ying Zhou
- Key Laboratory of Clinical Laboratory Diagnostics, Ministry of Education of China, School of Laboratory Medicine, Chongqing Medical University, Chongqing 400016, China; (W.L.); (M.D.); (Y.Z.); (M.J.); (Y.L.); (X.W.)
| | - Mengdan Jiang
- Key Laboratory of Clinical Laboratory Diagnostics, Ministry of Education of China, School of Laboratory Medicine, Chongqing Medical University, Chongqing 400016, China; (W.L.); (M.D.); (Y.Z.); (M.J.); (Y.L.); (X.W.)
| | - Yanru Li
- Key Laboratory of Clinical Laboratory Diagnostics, Ministry of Education of China, School of Laboratory Medicine, Chongqing Medical University, Chongqing 400016, China; (W.L.); (M.D.); (Y.Z.); (M.J.); (Y.L.); (X.W.)
| | - Yanxiang Ding
- The First Clinical College, Chongqing Medical University, Chongqing 400016, China;
| | - Zhong Zhang
- Material Evidence Identification Center, Chongqing Public Security Bureau, Chongqing 400016, China;
| | - Xue Wei
- Key Laboratory of Clinical Laboratory Diagnostics, Ministry of Education of China, School of Laboratory Medicine, Chongqing Medical University, Chongqing 400016, China; (W.L.); (M.D.); (Y.Z.); (M.J.); (Y.L.); (X.W.)
| | - Xiaoqing Zhang
- Key Laboratory of Clinical Laboratory Diagnostics, Ministry of Education of China, School of Laboratory Medicine, Chongqing Medical University, Chongqing 400016, China; (W.L.); (M.D.); (Y.Z.); (M.J.); (Y.L.); (X.W.)
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2
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Pan P, Xing Y, Zhang D, Wang J, Liu C, Wu D, Wang X. A review on the identification of transgenic oilseeds and oils. J Food Sci 2023; 88:3189-3203. [PMID: 37458291 DOI: 10.1111/1750-3841.16705] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Revised: 06/26/2023] [Accepted: 06/29/2023] [Indexed: 08/05/2023]
Abstract
Transgenic technology can increase the quantity and quality of vegetable oils worldwide. However, people are skeptical about the safety of transgenic oil-bearing crops and the oils they produce. In order to protect consumers' rights and avoid transgenic oils being adulterated or labeled as nontransgenic oils, the transgenic detection technology of oilseeds and oils needs careful consideration. This paper first summarized the current research status of transgenic technologies implemented at oil-bearing crops. Then, an inspection process was proposed to detect a large number of samples to be the subject rapidly, and various inspection strategies for transgenic oilseeds and oils were summarized according to the process sequence. The detection indicators included oil content, fatty acid, triglyceride, tocopherol, and nucleic acid. The detection technologies involved chromatography, spectroscopy, nuclear magnetic resonance, and polymerase chain reaction. It is hoped that this article can provide crucial technical reference and support for staff engaging in the supervision of transgenic food and for researchers developing fast and efficient monitoring methods in the future.
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Affiliation(s)
- Pengyuan Pan
- College of Food Science and Engineering, Jilin Agricultural University, Changchun, China
- National Engineering Laboratory of Wheat and Corn Deep Processing, Changchun, China
| | - Yihang Xing
- College of Food Science and Engineering, Jilin Agricultural University, Changchun, China
- National Engineering Laboratory of Wheat and Corn Deep Processing, Changchun, China
| | - Dingwen Zhang
- College of Food Science and Engineering, Jilin Agricultural University, Changchun, China
- National Engineering Laboratory of Wheat and Corn Deep Processing, Changchun, China
| | - Ji Wang
- College of Food Science and Engineering, Jilin Agricultural University, Changchun, China
- National Engineering Laboratory of Wheat and Corn Deep Processing, Changchun, China
| | - Chunlei Liu
- College of Food Science and Engineering, Jilin Agricultural University, Changchun, China
- National Engineering Laboratory of Wheat and Corn Deep Processing, Changchun, China
| | - Dan Wu
- College of Food Science and Engineering, Jilin Agricultural University, Changchun, China
- National Engineering Laboratory of Wheat and Corn Deep Processing, Changchun, China
| | - Xiyan Wang
- College of Food Science and Engineering, Jilin Agricultural University, Changchun, China
- National Engineering Laboratory of Wheat and Corn Deep Processing, Changchun, China
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3
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Ramos-Gómez S, Busto MD, Ortega N. Detection of Hazelnut and Almond Adulteration in Olive Oil: An Approach by qPCR. Molecules 2023; 28:molecules28104248. [PMID: 37241987 DOI: 10.3390/molecules28104248] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Revised: 05/19/2023] [Accepted: 05/20/2023] [Indexed: 05/28/2023] Open
Abstract
Virgin olive oil (VOO), characterized by its unique aroma, flavor, and health benefits, is subject to adulteration with the addition of oils obtained from other edible species. The consumption of adulterated olive oil with nut species, such as hazelnut or almond, leads to health and safety issues for consumers, due to their high allergenic potential. To detect almond and hazelnut in olive oil, several amplification systems have been analyzed by qPCR assay with a SYBR Green post-PCR melting curve analysis. The systems selected were Cora1F2/R2 and Madl, targeting the genes coding the allergenic protein Cor a 1 (hazelnut) and Pru av 1 (almond), respectively. These primers revealed adequate specificity for each of the targeted species. In addition, the result obtained demonstrated that this methodology can be used to detect olive oil adulteration with up to 5% of hazelnut or almond oil by a single qPCR assay, and with a level as low as 2.5% by a nested-qPCR assay. Thus, the present research has shown that the SYBR-based qPCR assay can be a rapid, precise, and accurate method to detect adulteration in olive oil.
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Affiliation(s)
- Sonia Ramos-Gómez
- Department of Biotechnology and Food Science, Area of Biochemistry and Molecular Biology, University of Burgos, Plaza Misael Bañuelos s/n, 09001 Burgos, Spain
| | - María D Busto
- Department of Biotechnology and Food Science, Area of Biochemistry and Molecular Biology, University of Burgos, Plaza Misael Bañuelos s/n, 09001 Burgos, Spain
| | - Natividad Ortega
- Department of Biotechnology and Food Science, Area of Biochemistry and Molecular Biology, University of Burgos, Plaza Misael Bañuelos s/n, 09001 Burgos, Spain
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4
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Zarezadeh MR, Aboonajmi M, Ghasemi-Varnamkhasti M. Applications of ultrasound techniques in tandem with non-destructive approaches for the quality evaluation of edible oils. JOURNAL OF FOOD SCIENCE AND TECHNOLOGY 2022; 59:2940-2950. [PMID: 35872733 PMCID: PMC9304511 DOI: 10.1007/s13197-022-05351-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 12/03/2021] [Accepted: 12/25/2021] [Indexed: 06/15/2023]
Abstract
Edible oils include triglycerides that are extracted from oil seeds or fruits such as sunflowers, palms, olives, soys, rapeseeds, cocoa and many others. They are the elementary origins of unsaturated fats and vitamins especially vitamin 'E' in people's diets. Edible oils are at risk of intentional (such as inadequate storage conditions) and unintentional adulteration, so it is necessary to pay attention to their safety, health and fraud. Generally, this evaluation can be destructive or non-destructive. There are numerous methods to evaluate quality of edible oils which include sensory analysis, chemical analysis, chromatography, ultrasound, etc. The Ultrasonic approach is a non-destructive way and also fast, accurate, inexpensive, repeatable, portable and simple. Combination of ultrasound with other techniques such as electronic nose, electronic tongue, visible spectroscopic fingerprints, chemical descriptors, Raman spectroscopy, mid-infrared and machine vision, will improve quality evaluation and detection accuracy. This review summarizes the ultrasound idea and the latest knowledge of its application with other techniques on evaluation of edible oils.
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Affiliation(s)
- Mohammad Reza Zarezadeh
- Department of Agrotechnology, College of Abouraihan, University of Tehran, Tehran, P.O. Box 3391653755, Iran
| | - Mohammad Aboonajmi
- Department of Agrotechnology, College of Abouraihan, University of Tehran, Tehran, P.O. Box 3391653755, Iran
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5
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Xia Y, Chen F, Liu B, Zhang J, Li S. Distribution and degradation of DNA during industrial soybean oil processing. Food Control 2021. [DOI: 10.1016/j.foodcont.2020.107859] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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6
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Su Y, Chu H, Tian J, Du Z, Xu W. Insight into the nanomaterials enhancement mechanism of nucleic acid amplification reactions. Trends Analyt Chem 2021. [DOI: 10.1016/j.trac.2021.116221] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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7
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Evaluation of DNA extraction methods for molecular traceability in cold pressed, solvent extracted and refined groundnut oils. Journal of Food Science and Technology 2021; 58:3561-3567. [PMID: 34366473 DOI: 10.1007/s13197-021-05079-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 03/12/2021] [Accepted: 03/17/2021] [Indexed: 10/21/2022]
Abstract
Groundnut oil (GNO)/peanut oil is one of the agro-food products with great economic value and hence an attractive target for adulteration and mislabeling. Simple Sequence Repeats (SSR) are markers of choice for DNA fingerprinting studies as they exhibit high polymorphism due to variable number of repeats. Hence, this study was designed to evaluate and optimize a method for DNA isolation from groundnut oil and study the possibility of using the isolated DNA for molecular traceability using SSR markers. Four methods to isolate DNA from groundnut oil were evaluated. All the four methods were modified CTAB protocols, but differed in procedures for extraction, buffer compositions, amount of oil used and DNA carriers. For molecular traceability of oils, extraction and recovery of DNA from edible oil is a key step, especially in refined oils. A method that employed DNA enrichment prior to extraction with CTAB buffer yielded amplifiable DNA from cold pressed GNO, crude hexane extracted GNO and refined GNO. The optimized method for isolation of DNA from groundnut oil is simple, efficient, less costly and reproducible when compared to chromatography and spectroscopy based techniques.
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8
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Antioxidant properties of the extracts of vine tea (Ampelopsis grossedentata) with the different color characteristics and inhibition of rapeseed and sunflower oil oxidation. Lebensm Wiss Technol 2021. [DOI: 10.1016/j.lwt.2020.110292] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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9
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Xia Y, Chen F, Jiang L, Li S, Zhang J. Development of an Efficient Method to Extract DNA from Refined Soybean Oil. FOOD ANAL METHOD 2021. [DOI: 10.1007/s12161-020-01867-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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10
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Comprehensive Review on Application of FTIR Spectroscopy Coupled with Chemometrics for Authentication Analysis of Fats and Oils in the Food Products. Molecules 2020; 25:molecules25225485. [PMID: 33238638 PMCID: PMC7700317 DOI: 10.3390/molecules25225485] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2020] [Revised: 11/18/2020] [Accepted: 11/20/2020] [Indexed: 11/16/2022] Open
Abstract
Currently, the authentication analysis of edible fats and oils is an emerging issue not only by producers but also by food industries, regulators, and consumers. The adulteration of high quality and expensive edible fats and oils as well as food products containing fats and oils with lower ones are typically motivated by economic reasons. Some analytical methods have been used for authentication analysis of food products, but some of them are complex in sampling preparation and involving sophisticated instruments. Therefore, simple and reliable methods are proposed and developed for these authentication purposes. This review highlighted the comprehensive reports on the application of infrared spectroscopy combined with chemometrics for authentication of fats and oils. New findings of this review included (1) FTIR spectroscopy combined with chemometrics, which has been used to authenticate fats and oils; (2) due to as fingerprint analytical tools, FTIR spectra have emerged as the most reported analytical techniques applied for authentication analysis of fats and oils; (3) the use of chemometrics as analytical data treatment is a must to extract the information from FTIR spectra to be understandable data. Next, the combination of FTIR spectroscopy with chemometrics must be proposed, developed, and standardized for authentication and assuring the quality of fats and oils.
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11
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Waldo JT, Pereira M, Rahman M, Siconolfi J. Development and validation of an undergraduate laboratory activity exploring the dna analysis of pet food. BIOCHEMISTRY AND MOLECULAR BIOLOGY EDUCATION : A BIMONTHLY PUBLICATION OF THE INTERNATIONAL UNION OF BIOCHEMISTRY AND MOLECULAR BIOLOGY 2018; 46:536-546. [PMID: 30369033 DOI: 10.1002/bmb.21165] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2018] [Accepted: 08/10/2018] [Indexed: 06/08/2023]
Abstract
A novel experiment has been developed with a goal of enhancing engagement and deepening understanding of fundamental molecular biology concepts. In this laboratory activity, students investigate the composition of pet foods through quantitative polymerase chain reaction (qPCR) analysis. By conducting this experiment, students address a scientific question that has the potential to be of personal interest and they gain an appreciation of the power of genetic analysis. To develop this activity, ingredient lists of popular pet foods were surveyed and eight different components were selected to be the subject of inquiry. Reaction conditions for qPCR were validated and optimized, and a simple, efficient, and student-friendly protocol was developed. A cohort of upper-level biology students extracted DNA from pet foods and conducted the qPCR reactions. Specificity of amplification was determined by conducting melting point analysis and agarose gel electrophoresis of the products. Student reactions were analyzed and efficacy of this approach for deepening understanding of fundamental biochemical and molecular biology concepts was documented. © 2018 International Union of Biochemistry and Molecular Biology, 46(5):536-546, 2018.
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Affiliation(s)
- Jennifer Turner Waldo
- Department of Biology, State University of New York at New Paltz, New Paltz, New York
| | - Melanie Pereira
- Department of Biology, State University of New York at New Paltz, New Paltz, New York
| | - Mohammad Rahman
- Department of Biology, State University of New York at New Paltz, New Paltz, New York
| | - Jessica Siconolfi
- Department of Biology, State University of New York at New Paltz, New Paltz, New York
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12
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Fratoddi I, Rapa M, Testa G, Venditti I, Scaramuzzo FA, Vinci G. Response surface methodology for the optimization of phenolic compounds extraction from extra virgin olive oil with functionalized gold nanoparticles. Microchem J 2018. [DOI: 10.1016/j.microc.2018.01.043] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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13
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Alonso-Rebollo A, Ramos-Gómez S, Busto MD, Ortega N. Development and optimization of an efficient qPCR system for olive authentication in edible oils. Food Chem 2017; 232:827-835. [PMID: 28490146 DOI: 10.1016/j.foodchem.2017.04.078] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2016] [Revised: 11/10/2016] [Accepted: 04/13/2017] [Indexed: 10/19/2022]
Abstract
The applicability of qPCR in olive-oil authentication depends on the DNA obtained from the oils and the amplification primers. Therefore, four olive-specific amplification systems based on the trnL gene were designed (A-, B-, C- and D-trnL systems). The qPCR conditions, primer concentration and annealing temperature, were optimized. The systems were tested for efficiency and sensitivity to select the most suitable for olive oil authentication. The selected system (D-trnL) demonstrated specificity toward olive in contrast to other oleaginous species (canola, soybean, sunflower, maize, peanut and coconut) and showed high sensitivity in a broad linear dynamic range (LOD and LOQ: 500ng - 0.0625pg). This qPCR system enabled detection, with high sensitivity and specificity, of olive DNA isolated from oils processed in different ways, establishing it as an efficient method for the authentication of olive oil regardless of its category.
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Affiliation(s)
- Alba Alonso-Rebollo
- Department of Biotechnology and Food Science, University of Burgos, Plaza Misael Bañuelos, s/n, 09001 Burgos, Spain
| | - Sonia Ramos-Gómez
- Department of Biotechnology and Food Science, University of Burgos, Plaza Misael Bañuelos, s/n, 09001 Burgos, Spain
| | - María D Busto
- Department of Biotechnology and Food Science, University of Burgos, Plaza Misael Bañuelos, s/n, 09001 Burgos, Spain
| | - Natividad Ortega
- Department of Biotechnology and Food Science, University of Burgos, Plaza Misael Bañuelos, s/n, 09001 Burgos, Spain.
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14
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Synchronous front-face fluorescence spectroscopy for authentication of the adulteration of edible vegetable oil with refined used frying oil. Food Chem 2017; 217:274-280. [DOI: 10.1016/j.foodchem.2016.08.053] [Citation(s) in RCA: 53] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2016] [Revised: 07/13/2016] [Accepted: 08/18/2016] [Indexed: 11/23/2022]
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15
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Determination of 2-Propenal Using Headspace Solid-Phase Microextraction Coupled to Gas Chromatography–Time-of-Flight Mass Spectrometry as a Marker for Authentication of Unrefined Sesame Oil. J CHEM-NY 2017. [DOI: 10.1155/2017/9106409] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Ascertaining the authenticity of the unrefined sesame oil presents an ongoing challenge. Here, the determination of 2-propenal was performed by headspace solid-phase microextraction (HS-SPME) under mild temperature coupled to gas chromatography with time-of-flight mass spectrometry, enabling the detection of adulteration of unrefined sesame oil with refined corn or soybean oil. Employing this coupled technique, 2-propenal was detected in all tested refined corn and soybean oils but not in any of the tested unrefined sesame oil samples. Using response surface methodology, the optimum extraction temperature, equilibrium time, and extraction time for the HS-SPME analysis of 2-propenal using carboxen/polydimethylsiloxane fiber were determined to be 55°C, 15 min, and 15 min, respectively, for refined corn oil and 55°C, 25 min, and 15 min, respectively, for refined soybean oil. Under these optimized conditions, the adulteration of unrefined sesame oil with refined corn or soybean oils (1–5%) was successfully detected. The detection and quantification limits of 2-propenal were found to be in the range of 0.008–0.010 and 0.023–0.031 µg mL−1, respectively. The overall results demonstrate the potential of this novel method for the authentication of unrefined sesame oil.
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16
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Zhan H, Xi J, Zhao K, Bao R, Xiao L. A spectral-mathematical strategy for the identification of edible and swill-cooked dirty oils using terahertz spectroscopy. Food Control 2016. [DOI: 10.1016/j.foodcont.2016.02.043] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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17
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Salihah NT, Hossain MM, Lubis H, Ahmed MU. Trends and advances in food analysis by real-time polymerase chain reaction. Journal of Food Science and Technology 2016; 53:2196-209. [PMID: 27407185 PMCID: PMC4921084 DOI: 10.1007/s13197-016-2205-0] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Revised: 03/06/2016] [Accepted: 03/14/2016] [Indexed: 02/05/2023]
Abstract
Analyses to ensure food safety and quality are more relevant now because of rapid changes in the quantity, diversity and mobility of food. Food-contamination must be determined to maintain health and up-hold laws, as well as for ethical and cultural concerns. Real-time polymerase chain reaction (RT-PCR), a rapid and inexpensive quantitative method to detect the presence of targeted DNA-segments in samples, helps in determining both accidental and intentional adulterations of foods by biological contaminants. This review presents recent developments in theory, techniques, and applications of RT-PCR in food analyses, RT-PCR addresses the limitations of traditional food analyses in terms of sensitivity, range of analytes, multiplexing ability, cost, time, and point-of-care applications. A range of targets, including species of plants or animals which are used as food ingredients, food-borne bacteria or viruses, genetically modified organisms, and allergens, even in highly processed foods can be identified by RT-PCR, even at very low concentrations. Microfluidic RT-PCR eliminates the separate sample-processing step to create opportunities for point-of-care analyses. We also cover the challenges related to using RT-PCR for food analyses, such as the need to further improve sample handling.
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Affiliation(s)
- Nur Thaqifah Salihah
- Biosensors and Biotechnology Laboratory, Integrated Science Building, Faculty of Science, Universiti Brunei Darussalam, Jalan Tungku Link, Gadong, BE 1410 Brunei Darussalam
| | | | - Hamadah Lubis
- Biosensors and Biotechnology Laboratory, Integrated Science Building, Faculty of Science, Universiti Brunei Darussalam, Jalan Tungku Link, Gadong, BE 1410 Brunei Darussalam
| | - Minhaz Uddin Ahmed
- Biosensors and Biotechnology Laboratory, Integrated Science Building, Faculty of Science, Universiti Brunei Darussalam, Jalan Tungku Link, Gadong, BE 1410 Brunei Darussalam
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18
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DNA Barcoding as a Molecular Tool to Track Down Mislabeling and Food Piracy. DIVERSITY-BASEL 2015. [DOI: 10.3390/d8010002] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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19
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Ramos-Gómez S, Busto MD, Albillos SM, Ortega N. Novel qPCR systems for olive (Olea europaea L.) authentication in oils and food. Food Chem 2015; 194:447-54. [PMID: 26471578 DOI: 10.1016/j.foodchem.2015.08.036] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2015] [Revised: 07/20/2015] [Accepted: 08/11/2015] [Indexed: 11/24/2022]
Abstract
The traceability of olive oil is an unresolved issue that remains a challenge. In this field, DNA-based techniques are very powerful tools for discrimination that are less negatively influenced by environmental conditions than other techniques. More specifically, quantitative real time PCR (qPCR) achieves a high degree of sensitivity, although the DNA that it can directly isolate from these oils presents drawbacks. Our study reports the analysis of eight systems, in order to determine their suitability for olive detection in oil and oil-derived foodstuffs. The eight systems were analyzed on the basis of their sensitivity and specificity in the qPCR assay, their relative sensitivity to olive DNA detection and DNA mixtures, their sensitivity and specificity to olive in vegetable oils and the detection of olive in commercial products. The results show that the PetN-PsbM system, designed in this study, is a suitable and reliable technique in relation to olive oil and olive ingredients in both food authentication and food safety processes.
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Affiliation(s)
- Sonia Ramos-Gómez
- Department of Biotechnology and Food Science, University of Burgos, Plaza Misael Bañuelos, s/n, 09001 Burgos, Spain
| | - María D Busto
- Department of Biotechnology and Food Science, University of Burgos, Plaza Misael Bañuelos, s/n, 09001 Burgos, Spain
| | - Silvia M Albillos
- Department of Biotechnology and Food Science, University of Burgos, Plaza Misael Bañuelos, s/n, 09001 Burgos, Spain
| | - Natividad Ortega
- Department of Biotechnology and Food Science, University of Burgos, Plaza Misael Bañuelos, s/n, 09001 Burgos, Spain.
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20
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Mignogna R, Fratianni A, Niro S, Panfili G. Tocopherol and tocotrienol analysis as a tool to discriminate different fat ingredients in bakery products. Food Control 2015. [DOI: 10.1016/j.foodcont.2015.01.032] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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21
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Wu Z, Li H, Tu D. Application of Fourier Transform Infrared (FT-IR) Spectroscopy Combined with Chemometrics for Analysis of Rapeseed Oil Adulterated with Refining and Purificating Waste Cooking Oil. FOOD ANAL METHOD 2015. [DOI: 10.1007/s12161-015-0149-z] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Erwanto Y, Abidin MZ, Sugiyono EYPM, Rohman A. Identification of Pork Contamination in Meatballs of Indonesia Local Market Using Polymerase Chain Reaction-Restriction Fragment Length Polymorphism (PCR-RFLP) Analysis. ASIAN-AUSTRALASIAN JOURNAL OF ANIMAL SCIENCES 2014; 27:1487-92. [PMID: 25178301 PMCID: PMC4150182 DOI: 10.5713/ajas.2014.14014] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/07/2014] [Revised: 03/12/2014] [Accepted: 04/15/2014] [Indexed: 11/27/2022]
Abstract
This research applied and evaluated a polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) using cytochrome b gene to detect pork contamination in meatballs from local markets in Surabaya and Yogyakarta regions, Indonesia. To confirm the effectiveness and specificity of this fragment, thirty nine DNA samples from different meatball shops were isolated and amplified, and then the PCR amplicon was digested by BseDI restriction enzyme to detect the presence of pork in meatballs. BseDI restriction enzyme was able to cleave porcine cytochrome b gene into two fragments (131 bp and 228 bp). Testing the meatballs from the local market showed that nine of twenty meatball shops in Yogyakarta region were detected to have pork contamination, but there was no pork contamination in meatball shops in Surabaya region. In conclusion, specific PCR amplification of cytochrome b gen and cleaved by BseDI restriction enzymes seems to be a powerful technique for the identification of pork presence in meatball because of its simplicity, specificity and sensitivity. Furthermore, pork contamination intended for commercial products of sausage, nugget, steak and meat burger can be checked. The procedure is also much cheaper than other methods based on PCR, immunodiffusion and other techniques that need expensive equipment.
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Affiliation(s)
- Yuny Erwanto
- Halal Products Research Center, Gadjah Mada University, Yogyakarta 55281, Indonesia
| | | | | | - Abdul Rohman
- Halal Products Research Center, Gadjah Mada University, Yogyakarta 55281, Indonesia . ; Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Gadjah Mada University, Yogyakarta 55281, Indonesia
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Development of a method to recovery and amplification DNA by real-time PCR from commercial vegetable oils. Food Chem 2014; 158:374-83. [PMID: 24731357 DOI: 10.1016/j.foodchem.2014.02.142] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2012] [Revised: 02/07/2014] [Accepted: 02/18/2014] [Indexed: 11/22/2022]
Abstract
This study describes the design of a suitable DNA isolation method from commercial vegetable oils for the application of DNA markers for food safety and traceability. Firstly, a comparative study was made of eight methods for the recovery of high quality DNA from olive, sunflower and palm oils, and a CTAB-based method was selected. In order to optimize this method, the effect of the organic compounds and several components in the lysis buffer and the lysis and precipitation time were evaluated. For the purpose of overcoming the limitations detected in spectrophotometric and PCR DNA yield evaluations, the performance of the extraction protocols during the optimization processes was evaluated using qPCR. The suggested DNA extraction optimized is less time consuming than other conventional DNA extraction methods, uses a reduced oil volume and is cheaper than available commercial kits. Additionally, the applicability of this method has been successfully assayed in ten commercial vegetable oils and derivatives.
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Putative markers of adulteration of extra virgin olive oil with refined olive oil: Prospects and limitations. Food Res Int 2013. [DOI: 10.1016/j.foodres.2013.05.008] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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