A5022268536- Essential Oils and Antimicrobial Activity
- Biofuel production and bioconversion
- Insect Pest Control Strategies
- Innovative Human-Technology Interaction
- Phytochemistry Medicinal Plant Applications
- Biodiesel Production and Applications
- Enzyme Production and Characterization
- Microbial Metabolites in Food Biotechnology
- Microbial Metabolic Engineering and Bioproduction
- Palliative and Oncologic Care
- Internet Traffic Analysis and Secure E-voting
- Mycotoxins in Agriculture and Food
- Transportation and Mobility Innovations
- Impact of Light on Environment and Health
- Microbial Natural Products and Biosynthesis
- Network Security and Intrusion Detection
- Phytochemistry and Biological Activities
- Research on Leishmaniasis Studies
- Facial Nerve Paralysis Treatment and Research
- Plant Pathogens and Fungal Diseases
- Genomics and Phylogenetic Studies
- Vibrio bacteria research studies
- Access Control and Trust
- Calcium Carbonate Crystallization and Inhibition
- Leprosy Research and Treatment
Instituto Politécnico de Leiria
2024
Universidade Federal de Pernambuco
2016-2022
Universidade Nova de Lisboa
2003-2013
The biochemical response to oxygen of the strictly anaerobic sulfate-reducing bacterium Desulfovibrio gigas was studied with goal elucidating survival strategies in oxic environments. Cultures D. on medium containing lactate and sulfate were exposed (concentration 5-120 micro M). Growth fully inhibited by oxygen, but cultures resumed growth as soon they shifted back anoxic conditions. Following 24 h exposure rate high 70 % rates observed before oxygenation. Catalase levels activity enhanced...
In this study, essential oil extracted from Syagrus coronata seeds (SCEO) was evaluated for antibacterial and antibiofilm activities against Staphylococcus aureus; in addition, Galleria mellonella model used as an vivo infection model. SCEO mainly composed by fatty acids (89.79%) sesquiterpenes (8.5%). The major components were octanoic acid, dodecanoic decanoic acid γ-eudesmol. showed bactericidal activity (minimal concentration 312 to 1250 μg/mL) all tested S. aureus clinical isolates,...
In this work, four isolates of endophytic fungi (Alternaria alternata, Colletotrichum gloesporioides, Glomerella cingulata and Nigrospora sphaerica), deposited in the culture collection 'University Recife Mycologia' (URM) at Universidade Federal de Pernambuco, were characterized for genes ITS 1 4 (region 5.8 S) evaluated taxol production.
This work evaluated the volatile composition, antioxidant and antiprotozoal activities of essential oil obtained from leaves Eugenia gracillima Kiaersk. (EGEO) grown in Brazilian Northeast area (Araripe, Brazil). The compounds EGEO were analyzed by GC GC–MS its chemical composition is mainly composed sesquiterpene hydrocarbons (91.22%), oxygenated sesquiterpenes (7.45%) monoterpene (1.01%). most abundant constituents germacrene D (16.10%), γ-muurolene (15.60%), bicyclogermacrene (8.53%), B...
Myrciaria pilosa is a tree species of the Brazilian Caatinga biome. This paper first report on chemical composition and antimicrobial antivirulence activities essential oil extracted from its leaves. The was by hydrodistillation. Chemical determined GC-MS CG-FID revealed 63 compounds; sesquiterpenes guaiol (13.17%) (E)-β-caryophyllene (11.26%) dominated. Antimicrobial activity against strains Staphylococcus aureus evaluated broth microdilution method. It showed minimum inhibitory...
In the present study, volatile components and cytotoxic, antibacterial, antioxidant, antiprotozoal activities of essential oil obtained from leaves Eugenia stipitata McVaugh (Myrtaceae) grown in Brazilian Northeast region (Araripe) were investigated. The was by hydrodistillation. E. provided an yield 0.13 ± 0.01% (w/w). compounds analysed using gas chromatography, chemical composition mainly composed β-eudesmol (15.28%), γ-eudesmol (10.85%), elemol (10.21%) caryophyllene oxide (6.65%)....
Zymomonas mobilis has aroused considerable interest owing to its rapid metabolism and efficiency in producing ethanol by-products such as levans, sorbitol, gluconic acid from simple sugars.We performed a proteomic analysis of Z. UFPEDA241 provide global profile regulatory proteins.The choice the methods extraction cell lysis are fundamental steps great importance for detection identification intra-and extracellular proteins proteome.Strains were subjected protein using three different...
Zymomonas mobilis has long attracted attention owing to its capacity ferment hexose ethanol. From a taxonomic viewpoint, Z. is unique species of the genus Zymomonas, separated into three subspecies, subsp. mobilis, pomaceae and francensis on basis physiological tests, which are often unreliable genetic proximity among these species. Currently, use molecular techniques more appropriate for identification bacterial subspecies. In this study, 32 strains present in UFPEDA collection were...
Z. mobilis has attracted great biotechnology interest in recent decades due to its unique metabolism and the ability produce bioethanol from simple sugars an effectively quickly way. also other bioactive products as fructose, gluconic acid, sorbitol, levan, fructo-oligosaccharides. This study aimed identify proteins differentially expressed by ZAG-12 under fermentative conditions with low high concentration of sucrose. was grown on SSDL two fermentation involving (50g/L; 5%) or (200g/L; 20%)...
Spondias tuberosa é uma planta medicinal usada para tratar doenças inflamatórias e distúrbios digestivos. Foram investigadas as atividades fitoquímica, antioxidante, fotoprotetora hemótica dos extratos de acetato etila frutos ramos. As antioxidantes foram avaliadas pelos ensaios DPPH, ABTS fosfomolibdênio. hemolítica pelo método espectrofotométrico. A identificação das classes compostos do extrato ramos foi realizada por HPLC. análise TLC demonstrou a presença flavonóides, derivados...