120 documents found, page 1 of 12
Towards Botanical Authentication of Ginkgo Food Supplements: A Holistic Approac...
Grazina, Liliana; Paíga, Paula; Amaral, Joana S.; Costa, Joana; Moreira, Manuela M.; Delerue-Matos, Cristina; Mafra, IsabelGinkgo biloba is one of the most consumed medicinal plants and broadly included as an ingredient in plant food supplements (PFS) and herbal infusions, being potential targets for economically motivated adulteration. This work aimed at comparing the use of DNA and phytochemical markers to authenticate the botanical origin of ginkgo-leaf extracts and PFS. Quantitative real-time PCR was used to detect ginkgo DNA, ...
Mass spectrometry‐based approaches to assess the botanical authenticity of diet...
Grazina, Liliana; Mafra, Isabel; Monaci, Linda; Amaral, Joana S.Dietary supplements are legally considered foods despite frequently including medicinal plants as ingredients. Currently, the consumption of herbal dietary supplements, also known as plant food supplements (PFS), is increasing worldwide and some raw botanicals, highly demanded due to their popularity, extensive use, and/orwell-established pharmacological effects, have been attaining high prices in the internati...
Authentication of incense (Pittosporum undulatum Vent.) honey from the Azores (...
Lopes, Ana; Moura, Monica B.M.V.; Grazina, Liliana; Costa, Joana; Amaral, Joana S.; Pinto, M. Alice; Mafra, Isabel'Mel dos Acores' is a unique nectar honey produced from the exceptional and diverse flora of the Azores archipelago, categorised as incense honey ('mel de incenso') or multifloral honey ('mel multiflora'). Incense honey should contain over 30 % of pollen grains of Pittosporum undulatum Vent. In this work, a real-time PCR method targeting the ITS region was proposed for the first time to detect P. undulatum in t...
Mass spectrometry-based approaches to assess the botanical authenticity of diet...
Grazina, Liliana; Mafra, Isabel; Monaci, Linda; Amaral, Joana S.Dietary supplements are legally considered foods despite frequently including medicinal plants as ingredients. Currently, the consumption of herbal dietary supplements, also known as plant food supplements (PFS), is increasing worldwide and some raw botanicals, highly demanded due to their popularity, extensive use, and/or well-established pharmacological effects, have been attaining high prices in the internat...
Thymus species from romanian spontaneous flora as promising source of phenolic ...
Babotă, Mihai; Frumuzachi, Oleg; Mafra, Isabel; Nicolescu, Alexandru; Dias, Maria Inês; Pinela, José; Barros, Lillian; Añibarro-Ortega, MikelWild thyme aerial parts (Serpylli herba) are recognized as a valuable herbal product with antioxidant, anti-inflammatory, and antibacterial effects. Although pharmacopoeial regulations allow its collection exclusively from Thymus serpyllum, substitution with other species is frequent in current practice. This study analyzed the phenolic composition, antioxidant, and enzyme-inhibitory and antimicrobial activity ...
Mass spectrometry‐based approaches to assess the botanical authenticity of diet...
Grazina, Liliana; Mafra, Isabel; Monaci, Linda; Amaral, Joana S.Dietary supplements are legally considered foods despite frequently including medicinal plants as ingredients. Currently, the consumption of herbal dietary supplements, also known as plant food supplements (PFS), is increasing worldwide and some raw botanicals, highly demanded due to their popularity, extensive use, and/orwell-established pharmacological effects, have been attaining high prices in the internati...
Animal species authentication in dairy products
Mafra, Isabel; Honrado, Mónica; Amaral, Joana S.Milk is one of the most important nutritious foods, widely consumed worldwide, either in its natural form or via dairy products. Currently, several economic, health and ethical issues emphasize the need for a more frequent and rigorous quality control of dairy products and the importance of detecting adulterations in these products. For this reason, several conventional and advanced techniques have been propose...
Authentication of carnaroli rice by HRM analysis targeting nucleotide polymorph...
Grazina, Liliana; Costa, Joana; Amaral, Joana S.; Garino, Cristiano; Arlorio, Marco; Mafra, IsabelCarnaroli is a high quality and priced variety, being considered as one of the finest Italian rice varieties due to its sensorial and rheological properties and, thus being a potential adulteration target. The present work aimed at exploiting polymorphisms in the Alk (A/G and GC/TT in exon 8) and Waxy ((CT)n and G/T in intron 1) genes by HRM analysis to differentiate Carnaroli rice from closely related varietie...
Botanical authentication of globe artichoke-containing foods: Differentiation o...
Grazina, Liliana; Batista, Andreia; Amaral, Joana S.; Costa, Joana; Mafra, IsabelCynara scolymus L., known as globe artichoke, is a medicinal plant widely used in plant food supplements (PFS) and herbal infusions due to its beneficial health properties. The high demand for artichoke-containing products can lead to adulteration practices. In this work, a real-time polymerase chain reaction (PCR) system coupled to high-resolution melting (HRM) analysis was proposed to differentiate C. scolymu...
Authentication of Argan (Argania spinosa L.) oil using novel DNA-based approach...
Amaral, Joana S.; Raja, Fatima Zahra; Costa, Joana; Grazina, Liliana; Villa, Caterina; Charrouf, Zoubida; Mafra, IsabelArgan oil is a traditional product obtained from the fruits of the argan tree (Argania spinosa L.), which is endemic only to Morocco. It is commercialized worldwide as cosmetic and food-grade argan oil, attaining very high prices in the international market. Therefore, argan oil is very prone to adulteration with cheaper vegetable oils. The present work aims at developing novel real-time PCR approaches to detec...