1. Antioxidant Properties of Croton zehntneri Pax et Hoffm. Essential Oil and Its Inclusion Complex with β-Cyclodextrin Prepared by Spray Drying

Croton zehntneri Pax et Hoffm. is a plant from Northeastern Brazil, whose main component of its essential oil is estragole. Its thermal instability and low aqueous solubility prevent its technological application. This study aimed to prepare and characterize the Croton zehntneri essential oil (CZEO) complexed with β-cyclodextrin (β-CD), and to evaluate ant

Journal of the Brazilian Chemical Society. Publicado em: 2022

2. METABOLIC PROFILING AND CYTOTOXIC ACTIVITY OF METHANOL EXTRACTS FROM CHAMAECRISTA DUCKEANA (P. BEZERRA & A. FERN.) H. S. IRWIN & BARNEBY (LEGUMINOSAE, CAESALPINIOIDEAE)

The genus Chamaecrista comprises more than 330 species, with only a few studies on their chemical composition and biologic activities. In this study, the phytochemical profile of leaf, stems, and fruits extracts of the C. duckeana were examined by UPLC ESI HRMS analysis to determine possibly bioactive constituents. The antioxidant activity was carried out th

Química Nova. Publicado em: 2022

3. In vitro Antioxidant and Anticholinesterase Activities of Ouratea fieldingiana (Gardner) Eng. Leaf Extract and Correlation with Its Phenolics Profile with an in silico Study in Relation to Alzheimer’s Disease

Ouratea fieldingiana is a native medicinal plant from Northeastern Brazil and many biological properties are due to the phenolic constituents. The objective of this work was performing the characterization of O. fieldingiana leaf constituents to correlate with antioxidant and anticholinesterase activities by in vitro and in silico studies and thus contribute

Journal of the Brazilian Chemical Society. Publicado em: 2022

4. Determining the harvest point of ‘Murupi’ peppers packed in plastic bags under cold storage

RESUMO As pimentas do gênero Capsicum são ricas em antioxidantes sendo consideradas excelentes fontes de compostos que podem trazer benefícios à saúde humana, como vitamina C e compostos fenólicos que, por sua vez, são influenciados pelo estádio de maturação dos frutos. O objetivo deste trabalho foi determinar o ponto ideal de colheita em pimentas

Horticultura Brasileira. Publicado em: 2022

5. Anti-Zika Virus Effects, Placenta Protection and Chemical Composition of Passiflora edulis Seeds Ethanolic Extract

Various beneficial biological activities have been reported for passion fruit (Passiflora edulis), grown in tropical and subtropical regions. However, no study has yet demonstrated its action against the Zika virus (ZIKV) infection. The present study aimed to investigate the anti-ZIKV of the ethanolic passion fruit seed extract (PFSE), from which, liquid chr

Journal of the Brazilian Chemical Society. Publicado em: 2022

6. Synthesis, Hypoglycemic Effect, Antimicrobial and Molecular Docking Studies of Organotin(IV) Complexes Derived From N-Phthalimido β-Amino Acid Derivatives

N-Phthalimido β-amino acid derivatives, 3-phthalimido-3(2-hydroxyphenyl) propanoic acid (P2HPA) and 3-phthalimido-3(2-nitrophenyl) propanoic acid (P2NPA) with new series of di- and triorganotin(IV) complexes (1-12) have been designed and synthesized. All the ligands and organotin(IV) complexes were characterized by elemental analysis, Fourier transform infr

J. Braz. Chem. Soc.. Publicado em: 2021-05

7. Response surface optimization of polysaccharide extraction from Galla Chinensis and determination of its antioxidant activity in vitro

Abstract Galla Chinensis was a traditional Chinese medicine used as an ingredient in many prescriptions for the treatment of oxidant damage-associated symptoms in China. The current research on the isolation of polysaccharides from Galla Chinensis and their antioxidant activities still remain as an ongoing challenge. The purpose of this study is to develop a

Food Sci. Technol. Publicado em: 2021-03

8. A new polysaccharide isolated from Dendrobium offcinale, stimulates aquaporin-3 expression in human keratinocytes

Abstract Polysaccharides are the major components of the water extract from Dendrobium officinale, which have been thoroughly studied and found to have favorable moisturizing properties on mammalian skin. However, the structures of polysaccharides on skin moisturizing properties remains unknown. The aim of this study was to extract and characterize D. offici

Food Sci. Technol. Publicado em: 2021-03

9. Physicochemical properties, antioxidant activities and sensory characteristics of commercial gape vinegars during long-term storage

Abstract This study was designed to investigate changes in quality characteristics during long-term storage of five commercial grape vinegars (V1~V5). To determine long-term quality characteristics of vinegars, proximate (soluble solid, pH, total acidity, color, and antioxidant activity) and sensory descriptive analysis, were performed. Initial soluble solid

Food Sci. Technol. Publicado em: 2020-12

10. Genetic variability in peppers accessions based on morphological, biochemical and molecular traits

ABSTRACT The evaluation of genetic diversity among the accessions of a germplasm collection results in information about promising materials suitable for breeding programs. Thus, the goal of this work was to characterize Capsicum baccatum accessions from different Brazilian regions, based on morphological, biochemical and molecular traits, aiming to support

Bragantia. Publicado em: 2020-12

11. Intercalation of Apocarotenoids from Annatto (Bixa orellana L.) into Layered Double Hydroxides

Synthetic conditions were evaluated to intercalate norbixin into layered double hydroxides (LDH). Norbixin was isolated from a hydrosoluble commercial annatto extract. LDH samples comprising M2+/Al3+ (M = Mg, Zn) were synthesized by coprecipitation and characterized by X-ray diffraction, thermal analysis coupled to mass spectrometry, vibrational spectroscopi

J. Braz. Chem. Soc.. Publicado em: 2020-11

12. Kinetic modeling and evaluation of free radical-scavenging behavior in oils: application to four tropical and subtropical fruits in a DPPH system

Abstract A kinetic model was developed to represent the radical-scavenging capacity (RSC) for the oxidation of oils. The model was developed using second-order rate constants (k2) to represent the RSC. The RSC of the oils can be compared by the k2 values indicating their scavenging capacity. Furthermore, the k2 values can be used to determine the decay kinet

Food Sci. Technol. Publicado em: 2020-06