127 documents found, page 1 of 13
Antimicrobial and wound healing effects associated to cytocompatibility and the...
Machado, Alexandra M.; Marto, Joana; Gonçalves, Lídia Maria; Ribeiro, Helena Margarida; Duarte, Aida; Tomás, Andreia; Falcão, Soraia; Vilas-Boas, MiguelOwing to its applications in both food and pharmaceutical industries honey is regarded as a functional product. This study evaluated 32 Portuguese monofloral honeys and their activity was compared with manuka honey 850 + . The antimicrobial activity was determined against Gram-positive and negative bacteria, and yeast. Antioxidant activity, wound healing ability, and cell viability were studied in the human ker...
Unveiling the chemistry and bioactivity of bee products and their derivatives
Anjos, O.; Miguel, Maria GraçaApiculture, or beekeeping, refers to the cultivation and management of honey bees for honey and byproducts, including the extraction, bottling, and sale of hive products such as honey, propolis, royal jelly, bee venom, bee pollen, bee bread and other fermented bee products [1]. Honey is a supersaturated solution or semi-solid natural sweet product produced by both honey bees (Apis subfamily) and stingless bees ...
Volatile characterization of honey with dominance of Bupleurum spinosum pollen
Elamine, Youssef; Machado, Alexandra M.; Estevinho, Leticia M.; Lyoussi, Badiâa; Figueiredo, Ana Cristina; Miguel, Maria GraçaMoroccan honey with Bupleurum spinosum (Apiaceae/Umbelliferae) as the main pollen source is locally known as Zantaz honey. In the present work, the volatiles from 18 honeys of this type, were isolated by hydrodistillation and analysed by Gas Chromatography (GC) and Gas Chromatography-Mass Spectrometry (GC-MS), for volatiles quantification and identification. The percentage composition of the volatiles and polle...
Chemical Characterization and Biological Properties Assessment of Euphorbia res...
Boutoub, Oumaima; El-Guendouz, Soukaïna; Matos, Isabel; El Ghadraoui, Lahsen; Costa, Maria Clara; Carlier, Jorge D.; Faleiro, Maria LeonorAlthough the plants of the genus Euphorbia are largely exploited by therapists in Morocco, the composition and antibacterial activities of propolis from these plants are still unknown. To address this gap, this study aimed to characterize the pollen type, the volatile compounds, and the phenolic and mineral profiles of three Euphorbia propolis samples collected in Morocco and evaluate their antimicrobial activi...
In vitro biological activity and phenolic profile of selected portuguese monofl...
Machado, Alexandra M.; Marto, Joana; Gonçalves, Lídia Maria; Ribeiro, Helena Margarida; Duarte, Aida; Tomás, Andreia; Falcão, Soraia; Vilas-Boas, MiguelPortuguese monofloral honeys from carob tree, chestnut, bell heather, eucalyptus, incense, orange, and strawberry tree, were evaluated in vitro for antimicrobial, antioxidant, wound healing, and cell viability effect, compared to manuka honey 850+. Antimicrobial activity was determined against Gram+-and Gram- bacteria and yeast. Antioxidants, wound healing, and cell viability effects were studied in the Human K...
1-Methylcyclopropene and lemongrass essential oil nanocoatings effect on the pr...
Gago, Custódia; Guerreiro, Adriana; Cruz, Sandra; Martins, Nuno; Cabrita, Maria João; Miguel, Maria Graça; Faleiro, Maria Leonar; Antunes, Maria DulceThe effects of coating ‘Rocha’ pear with alginate-based nanoemulsions enriched with lemongrass essential oil (LG) was evaluated and compared to the usual 1-MCP treatment. Fruit were treated with 1-MCP (312 nL L−1) or coated with nanoemulsions: sodium alginate 2 % (w/w) + lemongrass essential oil 1.25 % (w/w) (LG 1.25 %) or lemongrass essential oil 2.5 % (w/w) (LG 2.5 %). Then, fruit were stored at 0 °C and 90–9...
Chemical characterization of almond varieties natives from Algarve region
Carreira, Luís; Neves, Alcinda; Marreiros, António; El-Guendouz, Soukaïna; Ângelo, Luís; Peres, Maria de Fátima; Pedro, Soraia; Anjos, O.Almond, Prunus dulcis (Miller) D.A. Webb, syn. Prunus amygdalus Batsch is an important crop due to its fruits with high comercial value. In Portugal, there are traditional orchards in which almond trees grew on marginal soils, rainfed and with consequent low productivity; more recently huge investments in modern orchards with varieties originally from France and Spain such as ‘Ferraganés’, ‘Ferraduel’, ‘Guara’,...
Physicochemical characteristics and antiproliferative and antioxidant activitie...
Elamine, Youssef; Lyoussi, Badiâa; Miguel, Maria Graça; Anjos, O.; Estevinho, Letícia M.; Alaiz, Manuel; Girón-Calle, Julio; Martín, JesúsZantaz honey is a monofloral variety produced from the melliferous plant Bupleurum spinosum (Apiaceae), a shrub that grows mainly in the Atlas Moroccan Mountains. Determination of the polyphenol composition revealed that methyl syringate accounts for more than 50% of total polyphenols, which represents a very useful parameter for the characterization of this monofloral honey. Epicatechin, syringic acid and cate...
Antibacterial activity of Moroccan Zantaz Honey and the influence of its physic...
Elamine, Youssef; Imtara, Hamada; Miguel, Maria Graça; Anjos, O.; Estevinho, Letícia M.; Alaiz, Manuel; Girón-Calle, Julio; Vioque, JavierThe emergence of multidrug-resistant bacteria has prompted the development of alternative therapies, including the use of natural products with antibacterial properties. The antibacterial properties of Zantaz honey produced in the Moroccan Atlas Mountains against Escherichia coli, Pseudomonas aeruginosa, and Staphylococcus aureus was evaluated and analyzed using chemometric tools. Minimum inhibitory concentrati...
Volatile profile of Portuguese monofloral honeys: significance in botanical ori...
Machado, Alexandra M.; Antunes, Marília; Miguel, Maria Graça; Vilas-Boas, Miguel; Figueiredo, Ana CristinaThe volatile profiles of 51 samples from 12 monofloral-labelled Portuguese honey types were assessed. Honeys of bell heather, carob tree, chestnut, eucalyptus, incense, lavender, orange, rape, raspberry, rosemary, sunflower and strawberry tree were collected from several regions from mainland Portugal and from the Azores Islands. When available, the corresponding flower volatiles were comparatively evaluated. H...