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Alginate/nanocellulose nanocomposite hydrogels with bixin incorporated, an natural antioxidant agent, as biomaterial proposal for controlled drug delivery

Effluents from the pharmaceutical industry are generated in various activities, such as chemical synthesis, formulation, packaging, and quality control. These effluents were analyzed regarding several physical-chemical parameters

This work investigated the profile of volatile compounds and other F. chica and E. purpurea metabolites through phytochemical characterization methods

Production of surfactin, by fermentation, having as main substrate of this process a mixture of oily sludge (soybean and cotton), which is a residue from the vegetable oil refining process

Through a simplex-centroid design, the extraction of the total phenolic compounds from the avocado pulp and peel was optimized.

Valuation of prepared ferrite from iron mining tailings in the advanced oxidation process of the crystal violet dye by H₂O₂ showed that this process is effective

Chemical analysis of essential oils from leaves and stems of Siparuna brasiliensis (siparinaceae)

HPLC-UV (semi-preparative) was used to isolate the main prenylated substances from Brazilian green propolis and DPPH scavenging was used to quantify their antioxidant properties

The essential oils extracted from Citrus aurantifolia have the limonene as their main compound and present a strong larvicidal activity against Aedes aegypti in the 3rd larval stage

Evaluation of parameters COD, pH, P-PO₄^3-, N-NH⁴⁺ and N-NO₃^- through a vertical flow constructed wetland system for the treatment of cattle farm wastewater

Bioactive Metabolites and Biotechnological Applications of Algae of Sargassum: Pharmaceutical, food, bioenergy, agricultural and cosmeceutical potential

Peroxidase is one of the main enzymes used in studies of biosensors. It is capable of oxidizing a variety of aromatic substrates including phenolic compounds. Therefore, commercial electrochemical biosensors using peroxidase will probably be developed in the next few years

This review article discusses the occurrence and synthesis of flavonoid derivatives with a quinone nucleus in their structure, emphasizing their biological activities

- Alcohol-based hand sanitizers were submitted to quality control using a gas chromatography technique aiming to verify if the alcohol concentration was within the limit range established by the regulatory agencies. This article brings a brief review of the analytical methods published in the last two years for this purpose

A recent Instrument, the SHE tool, was used to assess the hazards of substances involved in the complex synthesis

This work represents a literature review of the use of blended learning models for the Science teaching in elementary school in the last decade