A5019985746- Bee Products Chemical Analysis
- Insect and Pesticide Research
- Plant and animal studies
- Phytochemicals and Antioxidant Activities
- Phytochemistry and Biological Activities
- Healthcare and Venom Research
- Essential Oils and Antimicrobial Activity
- Phytoestrogen effects and research
- Algal biology and biofuel production
- Pesticide Residue Analysis and Safety
- Botanical Research and Applications
- Medicinal Plant Extracts Effects
- Cannabis and Cannabinoid Research
- Plant biochemistry and biosynthesis
- Analytical Chemistry and Chromatography
- Pharmacological Effects of Natural Compounds
- Natural product bioactivities and synthesis
- Chemical synthesis and alkaloids
- Diet, Metabolism, and Disease
- Fatty Acid Research and Health
- History of Medicine and Tropical Health
- Nail Diseases and Treatments
- Plant Diversity and Evolution
- Bioactive natural compounds
- Pharmaceutical and Antibiotic Environmental Impacts
University of Coimbra
2016-2025
Planta
2021
Instituto Politécnico Nacional
2008
Pharmac
2003
Rede de Química e Tecnologia
1990
SummaryHoney bee pollen is considered to be a food, and national standards exist in different countries such as Brazil, Bulgaria, Poland Switzerland. It the aim of present work review composition analytical methods used for evaluation high quality pollen. Based on experience results published research, we propose criteria pollen, hoping that future they will world wide standards.
Bee-collected pollen ("bee pollen") is promoted as a health food with wide range of nutritional and therapeutic properties. The objective the current study to evaluate contribution made through free radical scavenging capability bee-collected floval pollens by their flavonoid/phenolics constituents, determine whether this affected aging. effectiveness bee (EC(50)) measured DPPH method shown be determined nature levels constituent floral pollens, which can assayed via phenolics profiles HPLC....
The total polyphenol and flavonoids in leaves of Morus alba var. alba, rosa rubra were determined identification their components was carried out. content phenolics varied between 345.20 631.53 mg gallic acid equivalents (GAE)/100 g dry weight (DW) basis. amount ranged 193.87 398.33 rutin (RE)/100 DW. Thirteen compounds isolated by chromatography, structures to be mainly flavonol glycosides phenolic acids. Three novel identified as kaempferol-7-O-glucoside,...
Huntington’s disease (HD) is a neurodegenerative disorder characterized by progressive loss of neurons, which leads to behavioral systems and mental decline. HD linked repeat expansions cytosine, adenine, guanine in the Huntingtin (HTT) gene that give rise mutation, leading formation HTT protein product. Oxidative stress also provokes initiation progression as it misfolding results inclusion clumps together alters neurotransmission. Despite advancement field pharmaceutical sciences, current...
Leaves and stem bark composition from Morus species (M. alba var. alba, M. rosa rubra) was evaluated for its antioxidant antimicrobial activities in order to enhance therapeutic uses. Total phenolics flavonoids contents were estimated hydromethanolic aqueous extracts. Results showed highest content rubra leaves extract (1129 mg gallic acid equivalent/100 g dry weight 816 weight, respectively). Using 2,2-diphenyl-1-picrylhydrazyl assay, the activity obtained barks has an IC50 of 2.84 mg/ml...
Bee Bread samples from Romania and India were analysed by microscopy High Performance Liquid Chromatography with Diode Array Detection (HPLC/DAD) compared pollen the correspondent taxa. The quantification of sugars, fructose/glucose ratio, total phenolics flavonoids was also carried out. From results possible to identify Brassica Eucalyptus that present similar HPLC/DAD profiles respective ultraviolet (UV) identification main compounds as Kaempferol-3-O-glycosides Hydrocinnamic acid...
“Bee pollen” is pollen collected from flowers by honey bees. It used the bees to nourish themselves, mainly providing royal jelly and brood food, but it also for human nutrition. For latter purpose, at hive entrance as pellets that bring hive. Bee has diverse bioactivities, thus been a health even medication in some countries. In this paper, we provide standard methods carrying out research on bee pollen. First, introduce method production storage of which assures quality product. Routine...
Bee pollen is a mix of bee-collected floral pollens which varies widely in composition. A systematic method for characterising bee terms their constituent needed view the growing phytotherapeutic interest products. Studies involving three samples collected from Portugal and New Zealand are reported. An approach based on flavonoid/phenolics profiles derived high pressure liquid chromatography demonstrated to be more precise informative than traditional microscopy. This provides convenient...
Passiflora edulis Sims together with several other plants of the genus have been reported to possess anxiolytic properties. It has suggested recently that flavonoids may be partly responsible for neuropharmacological activity these but there are still few data reporting relation between constituents and their activity. This work evaluated anxiolytic/sedative an aqueous extract bioguided its fractionation using elevated plus-maze model anxiety complementary pharmacological tests. The...