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Mostrando ítems 11-20 de 177
Comprobación de la Actividad Tintorera en Fibras Orgánicas y Sintéticas de la Berberis halliii
(Escuela Superior Politécnica de Chimborazo, 2011-06-08)
Berberis halliii, a shrub commonly known as Carrasquilla, contains flavonoids that have dyeing activity on synthetic (polyester) and natural (wool and cotton) fibers. To prove the activity, dyeing tests were carried out ...
Natural Products, Synthetic and Non-Nucleoside Compounds as Inhibitors of Enzymes Related to DNA: Update 2013
(Bentham Science Publishers, 2014-05)
This review article tries to be an update of 2008 Pungitore´s review. Again, this paper tries to summarize the investigation about natural products, synthetic and non-nucleoside compounds with the ability to inhibit enzymes ...
Synthesis of hesperetin 7-O-glucoside from flavonoids extracted from Citrus waste using both free and immobilized α-l-rhamnosidases
(Elsevier, 2015-06)
This work was aimed to design alternatives to semi-synthesize hesperetin 7-O-glucoside (HG), a low occurrence natural product, from the flavonoids hesperidin (HES) and neohesperidin (NEO) that can be extracted at large ...
Spectral analysis allows using the DPPH* UV–Vis assay to estimate antioxidant activity of colored compounds
(Versita, 2020-09)
An accurate measurement of antiradical activity to samples, such as herbal extract and natural or synthetic pure compounds, is essential to estimate its scope as antioxidant, for example, in functional foods. The ...
MOF-Based Erodible System for On-Demand Release of Bioactive Flavonoid at the Polymer-Tissue Interface
(2020-08-10)
Plant-derived compounds incite applications virtually on every biomedical field due to the expedient antioxidant, anti-inflammatory and antimicrobial properties in conjunction with a natural character. Here, quercetin ...
Wood panel adhesives from low molecular mass lignin and tannin without synthetic resins
(BRILL ACADEMIC PUBLISHERS, 2010)
Mixed interior wood panel tannin adhesive formulations were developed in which lignin was in considerable proportion, 50%, of the wood panel binder, and in which no 'fortification' with synthetic resins, such as isocyanates ...
Potencial antioxidante de plantas da flora pernambucana
(Universidade Federal de PernambucoUFPEBrasilPrograma de Pos Graduacao em Bioquimica e Fisiologia, 2016)
Avaliação da atividade antimicrobiana e análise morfológica por microscopia de força atômica (AFM) da ação de extratos de própolis verde sobre Staphylococcus aureus e Escherichia coli
(Universidade Federal de São CarlosUFSCarPrograma de Pós-Graduação em Biotecnologia - PPGBiotecCâmpus São Carlos, 2017-05-26)
In the last years the concerns about the resistance acquired by pathogenic microorganisms has increased due to large misuse of antibiotics and agricultural products. Research about new alternatives and natural antimicrobial ...
Fatty acid composition, extraction, fractionation, and stabilization of bullfrog (Rana catesbeiana) oil
(1998)
The oil extracted from the fat-storage organ (fat body) of the bullfrog (Rana catesbeiana) was characterized for its fatty acid composition. The main fatty acids were palmitic (18.1%), stearic (4.1%), myristic (2.7%), oleic ...