Consulta: subjectFacets:"Authentication"
Registros recuperados: 7
Data/hora: 04/06/2024 02:54:27

A Multi-Elements Isotope Approach to Assess the Geographic Provenance of Manila Clams (Ruditapes philippinarum) via Recombining Appropriate Elements
Provedor de dados: 5
Autores: Won, Eun-ji; Kim, Seung Hee; Go, Young-shin; Kumar, K. Suresh; Kim, Min-seob; Yoon, Suk-hee; Bayon, Germain; Kim, Jung-hyun; Shin, Kyung-hoon.
The increasing global consumption of seafood has led to increased trade among nations, accompanied by mislabeling and fraudulent practices that have rendered authentication crucial. The multi-isotope ratio analysis is considered as applicable tool for evaluating geographical authentications but requires information and experience to select target elements such as isotopes, through a distinction method based on differences in habitat and physiology due to origin. The present study examined recombination conditions of multi-elements that facilitated geographically distinct classifications of the clams to sort out appropriate elements. Briefly, linear discriminant analysis (LDA) analysis was performed according to several combinations of five stable isotopes...
Tipo: Text
Palavras-chave: Authentication; Manila clam; Stable isotope; Traceability; Linear discriminant analysis.
Ano: 2021
URL: https://archimer.ifremer.fr/doc/00685/79701/82488.pdf

Development of a qPCR Method for the Identification and Quantification of Two Closely Related Tuna Species, Bigeye Tuna (     Thunnus obesus     ) and Yellowfin Tuna (     Thunnus albacares     ), in Canned Tuna
Provedor de dados: 5
Autores: Bojolly, Daline; Doyen, Perine; Le Fur, Bruno; Christaki, Urania; Verrez-bagnis, Veronique; Grard, Thierry.
Bigeye tuna (Thunnus obesus) and yellowfin tuna (Thunnus albacares) are among the most widely used tuna species for canning purposes. Not only substitution but also mixing of tuna species is prohibited by the European regulation for canned tuna products. However, as juveniles of bigeye and yellowfin tunas are very difficult to distinguish, unintentional substitutions may occur during the canning process. In this study, two mitochondrial markers from NADH dehydrogenase subunit 2 and cytochrome c oxidase subunit II genes were used to identify bigeye tuna and yellowfin tuna, respectively, utilizing TaqMan qPCR methodology. Two different qPCR-based methods were developed to quantify the percentage of flesh of each species used for can processing. The first one...
Tipo: Text
Palavras-chave: Tuna; Authentication; Quantification; Canned products; TaqMan; QPCR; Species identification; Bigeye tuna (Thunnus obesus); Yellowfin tuna (Thunnus albacares).
Ano: 2017
URL: https://archimer.ifremer.fr/doc/00371/48217/48403.pdf

Traceability of bovine meat and bone meal in poultry by stable isotope analysis
Provedor de dados: 89
Autores: Carrijo,AS; Pezzato,AC; Ducatti,C; Sartori,JR; Trinca,L; Silva,ET.
Bovine meat and bone meal (MBM) was widely used in animal diets until outbreaks of Bovine Spongiform Encefalopathy (BSE) occurred in some countries. It has not been confirmed yet whether or not BSE may be transmitted to man through chicken meat originated from poultry that had been fed diets containing MBM. Therefore, consumers nowadays express preference for meat originated from birds fed exclusively vegetable diets. This study analyzed samples of major breast muscle (Pectoralis major) using mass spectrometry of stable isotopes (carbon and nitrogen) as a means to assess the presence of MBM in broiler diets, a technique that might be used in the certification of poultry quality. A total of 150 day-old chicks were reared in five randomized treatments with...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Authentication; Carbon-13; Isotopic determination; Nitrogen-15; Tracer.
Ano: 2006
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2006000100010

Diet authentication in sheep from the composition of animal tissues and products
Provedor de dados: 96
Autores: Prache,Sophie.
There is currently an increased consumer demand for information on herbivore production factors, particularly animal diet. To meet these demands, producers and commercial entities develop specifications via quality certifications. There is therefore a need for analytical tools that may guarantee that the specification commitments have been fully met or to help with constructing them. The present paper reviews the current state of knowledge concerning diet authentication in sheep meat and milk, the different approaches that have been investigated, some leading examples concerning the discrimination of contrasting feeding situations, together with the persistence of some diet markers in the event of changes in animals' diet. The nature of the diet strongly...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Authentication; Diet tracers; Meat; NIR spectroscopy; Pasture-feeding; Reflectance.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982009001300036

3D front-face fluorescence spectroscopy for characterization of extra virgin olive oil and olive oil according to the spectral pattern
Provedor de dados: 111
Autores: Lleó, Lourdes; Hernández-Sánchez, Natalia; Ammari, Faten; Roger, Jean-Michel.
3D front-face fluorescence spectroscopy and principal component analysis (PCA) were used to differentiate between Extra Virgin Olive (EVOO) and Olive Oil (OO). The results show that 3D front-face fluorescence could be an effective tool to characterize EVOO and OO. Fourteen samples of olive oils were acquired directly from producers and from retail markets and their 3D fluorescence spectra were measured and analyzed. The first principal component of the PCA model retained the most important variability as a combination of freshness due to the presence of antioxidant compounds and chlorophyll; and of oxidation stage due to the presence of oxidation products. Olive oil samples presented different spectral pattern providing different scores for EVOO and OO in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Food quality fluorescence spectroscopy; Olive oil; Quality assessment; Authentication.
Ano: 2016
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3699

Authentication of Virgin Olive Oil by Using Dielectric spectroscopy combined with Some Artificial Intelligence Methods
Provedor de dados: 111
Autores: Soltani, Mahmoud; Rashvand, Mahdi; Teimouri, Nima; Omid, Mahmoud.
Adulteration is a serious problem in the food industry. Olive oil is widely adulterated with other cheap edible oils such as sunflower and canola oils. Therefore, developing a low-cost, practical and rapid analytical method for detecting such adulteration in olive oil would be useful and needed.  In this research, we aimed to develop a dielectric measurement based system combined with complementary analytical intelligent techniques to recognize authentication of virgin olive oil from adulterated with vegetable oils (canola and sunflower). 192 sinusoidal signals in the range of 20 kHz and 20 MHz were feed into the cylindrical dielectric sensor filled with oil sample. Correlation based feature selection (CFS) was applied to select the most appropriate...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Postharvest Engineering Olive oil; Authentication; Dielectric properties; Data mining.
Ano: 2019
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5483

Isoenzyme and molecular approach for authenticating and monitoring of animal cell lines
Provedor de dados: 42
Autores: ARAÚJO,SHIRLEY B. DE; PATRICIO,GIANCARLO F.; SIMONI,ISABELA C.; RIVAS,ELIANA B.; FERNANDES,MARIA JUDITE B.
Abstract: Authentication of cell lines is of paramount importance to validate the results from their use in biomedical research. Although isoenzyme polymorphism is the standard method, molecular methods based on mitochondrial DNA (mtDNA) have been developed to replace it. The aim of this study was the improvement of our isoenzyme electrophoretic analysis and the validation of one molecular technique targeted at mtDNA for the authentication of our animal cell lines. The combined method of cellular lysing through osmotic shock, followed by freezing-thawing in N2 to obtain isoenzyme extracts, and with 42 × 106 cells maintained the best efficiency. The superior electrophoretic conditions were PAGE run at 200 V. All cell lines had isoenzymatic mobility...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Authentication; Cell line; DNA barcode; Isoenzyme.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652019000500625