Rafaela Karin Lima

ORCID: 0000-0003-3081-1114
Publications
Citations
Views
---
Saved
---
About
Contact & Profiles
Research Areas
  • Essential Oils and Antimicrobial Activity
  • Insect Pest Control Strategies
  • Insect and Pesticide Research
  • Phytochemistry Medicinal Plant Applications
  • Psidium guajava Extracts and Applications
  • Piperaceae Chemical and Biological Studies
  • Medicinal Plant Extracts Effects
  • Bee Products Chemical Analysis
  • Health, Nursing, Elderly Care
  • Olfactory and Sensory Function Studies
  • Phytochemistry and Biological Activities
  • Protein Hydrolysis and Bioactive Peptides
  • Insect Utilization and Effects
  • Palliative and Oncologic Care
  • Ethnobotanical and Medicinal Plants Studies
  • Aluminum toxicity and tolerance in plants and animals
  • Enzyme Catalysis and Immobilization
  • Stoma care and complications
  • Hormonal and reproductive studies
  • Radioactivity and Radon Measurements
  • Soil Management and Crop Yield
  • Plant-derived Lignans Synthesis and Bioactivity
  • Phytochemistry and biological activity of medicinal plants
  • Heavy Metals in Plants
  • Tannin, Tannase and Anticancer Activities

University Alto Vale do Rio do Peixe
2023

Federal University of São João del-Rei
2011-2022

Hospital de Clínicas de Porto Alegre
2017

University Center Augusto Motta
2016

Universidade Federal de Lavras
2007-2011

The chemical composition of Lippia sidoides essential oils obtained by hydrodistillation was characterized and quantified GC/MS their insecticidal activity fumigation test assayed against Tenebrio molitor. Moreover, the toxicity monoterpenes carvacrol, 1,8-cineol thymol were also evaluated when applied alone or in binary (1:1) tertiary (1:1:1) mixture. oil L. has as major constituents carvacrol (31.68%), ρ-cymene (19.58%), 1,8-cineole (9.26%) ϒ-terpinene (9.21%), from a 21 compounds...

10.1590/s1413-70542011000400004 article EN cc-by Ciência e Agrotecnologia 2011-08-01

LEMONGRASS (Cymbopogon citratus (D.C.) STAPF).The identification of the chemical compounds essential oil was performed with a gas chromatograph coupled to mass spectrometer.The left in presence and absence light submitted different temperatures evaluate its stability.The yields major were evaluated every fifteen days.Citral myrcene, oil, degraded over time both light, but temperature only influenced degradation myrcene.

10.1590/s0100-40422008000600037 article EN cc-by-nc Química Nova 2008-01-01

Os objetivos desta pesquisa foram a obtenção e caracterização do óleo essencial de folhas pimenta longa Piper hispidinervum, avaliação seu efeito no comportamento e/ou mortalidade da lagarta-do-cartucho milho Spodoptera frugiperda. O foi obtido pela técnica "arraste vapor d'água", utilizando-se um aparelho Clevenger modificado, posteriormente submetido, à análise por CG-EM CG. Foram realizados testes ingestão contato tópico em lagartas 1º 3º ínstar. resultados constataram que o pimenta-longa...

10.1590/s0044-59672009000200016 article PT cc-by-nc Acta Amazonica 2009-01-01

Abstract This study chemically characterizes and evaluates the bactericidal antioxidant activities of essential oils from Myristica fragrans Salvia microphylla . The were obtained by steam distillation subsequently subjected to analysis GC–MS GC. agar diffusion test was employed evaluate activity, while 1,1‐diphenyl‐2‐picrylhydrazyl (DPPH) β‐carotene/linoleic acid tests used determine activity. Terpin‐4‐ol (14.95%), sabinene (13.07%) γ‐terpinene (11.22%) found be major constituents in oil M....

10.1007/s11746-011-1938-1 article EN Journal of the American Oil Chemists Society 2011-09-21

Medicinal plants have been used for millennia by humans to treat various ailments, serving as an important source of bioactive substances with therapeutic potential. This article reviews the main medicinal in animal health, their effects, and considerations regarding application. The study is integrative review a descriptive exploratory nature, well qualitative analysis aimed at searching secondary data obtained from bibliographic production on studied theme. inclusion criteria determined...

10.55905/oelv22n12-297 article EN cc-by-nc OBSERVATÓRIO DE LA ECONOMÍA LATINOAMERICANA 2025-01-06

A soja [Glycine max (L.) Merrill] é o principal produto agrícola da exportação brasileira, portanto, torna-se importante a realização de estudos que contribuam para minimização dos efeitos possam causar diminuição do rendimento e depreciação qualidade dessa oleaginosa, como ocorrência pragas doenças, problemas com fertilidade solo adversidades climáticas, entre outros. Sabe-se as plantas diferem na sua capacidade absorver silício (Si), sendo assim diferentemente classificadas. influência Si...

10.1590/s1413-70542010000400016 article PT cc-by Ciência e Agrotecnologia 2010-08-01

Evaluate the impact of endoscopic partial inferior turbinectomy (EPIT) associated with primary rhinoseptoplasty on quality-of-life outcomes (QOL), complications, and surgical duration.Randomized clinical trial.Individuals nasal obstruction aged ≥ 16 years who were candidates for functional aesthetics evaluated from March 2014 through May 2015. Eligible participants randomly allocated to or without EPIT (excision one-third turbinates).Fifty patients studied. Most Caucasian had moderate/severe...

10.1002/lary.26831 article EN The Laryngoscope 2017-08-16

The compositions of the essential oils from leaves three domestic varieties guava tree Psidium guajava L. (Paluma, Século XXI and Pedro Sato) one wild variety were compared. Essential extracted by steam distillation, components identified gas chromatography coupled to mass spectrometry GC-MS, apparent concentrations determined with a flame ionization detector. results demonstrated that contained many common substances prevalence 1,8-cineole, whereas oil Paluma 1,8-cineole (42.68%) as major...

10.1590/s0102-695x2010000100009 article EN cc-by-nc-nd Revista Brasileira de Farmacognosia 2010-03-01

Plants produce a variety of compounds via the secondary metabolism that are related to interaction plant with environment, such as defense against insects, bacteria and fungi. The essential oils constitute type metabolite great economic importance, being increasingly studied utilized together integrated management pests. Thus, present study proposed investigate effects oil from Japanese star anise (Illicium verum L.) lemon grass (Cymbopogon citratus) leaves on behavior kale aphid Brevicoryne...

10.14295/ba.v3.0.56 article EN BioAssay 2009-07-03

Este trabalho objetivou avaliar o efeito do óleo essencial de folhas pimenta longa (Piper hispidinervum C. DC), sobre crescimento micelial Alternaria alternata e a análise da influência concentração emulsificante Tween® 80 no controle deste fitopatógeno. O foi obtido pela técnica "arraste vapor d'água", utilizando-se aparelho Clevenger modificado, posteriormente submetido, à por cromatografia em fase gasosa acoplada espectrômetro massas CG-EM CG. Para os ensaios biológicos, método...

10.1590/s0044-59672008000300015 article PT Acta Amazonica 2008-01-01

Nesta pesquisa, objetivou-se a obtenção e caracterização do óleo essencial de folhas da goiabeira Psidium guajava cv. Pedro Sato, seus possíveis efeitos no comportamento lagarta-do-cartucho milho Spodoptera frugiperda. O foi obtido pela técnica "arraste vapor d'água", utilizando-se um aparelho Clevenger modificado submetido, posteriormente, à análise por cromatografia gasosa acoplada espectrômetro massas CG-EM, fim investigar sua composição. Para avaliação dos das lagartas 1º ínstar foram...

10.1590/s1413-70542009000700013 article PT cc-by Ciência e Agrotecnologia 2009-01-01

Essa revisão teve como objetivo reunir artigos recentes sobre atividades biológicas de óleos essenciais algumas plantas da família Lamiaceae, uma vez que o Brasil é rico em desta e estas são pouco estudadas. Entre as bioatividades relatadas estão: antioxidante, bactericida, fungicida inseticida.

10.32712/2446-4775.2007.78 article PT cc-by Deleted Journal 2007-09-01

Este trabalho teve como objetivo identificar e quantificar os constituintes dos óleos essenciais de Illicum verum, Ageratum conyzoides, Piper hispidinervum Ocotea odorifera, bem avaliar a toxicidade para o pulgão-verde Schizaphis graminum. A qualificação foi realizada por meio um cromatógrafo gasoso + espectrômetro massas, quantificação, detector ionização chama, ambos com uma coluna DB5. O método hidrodestilação promoveu rendimento (p/p) 3,81% I. 0,46% A. 2,85% P. 0,68% O. odorífera. Já...

10.1590/s1808-16572014000100005 article PT cc-by Arquivos do Instituto Biológico 2014-03-01

The plants produce a variety of organic compounds. An important group these compounds are called secondary metabolites. These ones related to the interaction plant with environment, as for example, defense against insects, bacteria and fungi. essential oils consist kind metabolite great economical importance, since many them can be used medicine, insecticide , fungicide, among other usefulness. aim present work was verify fungitoxic potential oil Syzygium aromaticum concerning...

10.17058/tecnolog.v11i1.154 article EN Tecno-Lógica 2007-12-20

Pulmonary tuberculosis is an infection caused by Mycobacterium tuberculosis. The diagnosis made through the association of clinical-radiological data complemented identification bacillus whenever possible. Such procedure becomes a challenge particularly in childhood, because unlike adult form, childhood disease presents paucibacillary and there still sputum limitation to obtain samples, especially children under five years old. And gastric lavage used this age group proves be ineffective,...

10.25060/residpediatr-2021.v11n2-138 article EN cc-by Residência Pediátrica 2021-01-01
Coming Soon ...