Janaína Silva de Freitas

ORCID: 0000-0002-7691-4701
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Research Areas
  • Agricultural and Food Sciences
  • Insect Pest Control Strategies
  • Enzyme Production and Characterization
  • Essential Oils and Antimicrobial Activity
  • Phytochemistry Medicinal Plant Applications
  • Genetic diversity and population structure
  • Aquaculture Nutrition and Growth
  • Microbial Metabolic Engineering and Bioproduction
  • Protein Hydrolysis and Bioactive Peptides
  • Biofuel production and bioconversion
  • Mosquito-borne diseases and control
  • Phytase and its Applications
  • Enzyme Catalysis and Immobilization
  • Phytochemicals and Antioxidant Activities
  • Biological Control of Invasive Species
  • Plant and animal studies
  • Phosphodiesterase function and regulation
  • Allelopathy and phytotoxic interactions
  • Ethnobotanical and Medicinal Plants Studies
  • Microbial Metabolites in Food Biotechnology

Southwest Bahia State University
1970-2025

Fundação de Apoio a Pesquisa do Estado de Goiás
2019

Universidade Estadual de Santa Cruz
2017

ABSTRACT Basil produces essential oils of economic interest, but producing this species in semi-arid regions is a challenge. Brazil has specific edaphoclimatic characteristics that varying with region. The objective was to study the yield and chemical composition Ocimum basilicum L. greenhouse Bahia, Brazil, subjected 24, 72, 96, 120 144 hours without irrigation, corresponding 1st, 3rd, 4th, 5th 6th days, order evaluate optimization oil removal, production composition. Data on height number...

10.1590/1983-21252025v3812415rc article EN cc-by Revista Caatinga 2025-01-01

O objetivo deste estudo foicaracterizar o padrão de amplificação e selecionar iniciadores RGA (Resistance Gene Analogs) ISSR (Inter Simple Sequence Repeat) para subsidiar estudos genéticos em Croton linearifolius. Para tanto, foram realizados testes indivíduos C. linearifolius com uso 24 combinações pares 23 ISSR. As reações as produziram73 marcas, sendo que 14 apresentaram marcas polimórficas. os produziram 136 16 apresentando Os resultados obtidos atestam marcadores avaliados são...

10.33837/msj.v1i10.354 article PT cc-by Multi-Science Journal 2018-05-01

We investigated 10 similarity (and disimilarity) coefficients in a set of 40 wild genotypes Croton linearifolius subjected to analyses using hierarchical grouping methods, methods by optimization and data projection two-dimensional space.Genotypes were characterized analyzing DNA polymorphism with the use 15 ISSR 12 RAPD markers.The distance measurements compared Spearman correlation test, twodimensional space efficiency evaluation.The between evaluated ©FUNPEC-RP www.funpecrp.com.br

10.4238/2014.july.25.11 article EN Genetics and Molecular Research 2014-01-01

The objective of this work was to optimize the production pigments by Rhodotorula minuta and mucilaginosa through submerged fermentation, using yellow passion fruit peel (Passiflora edulis), as only substrate. independent variables evaluated were: (YPFP), in grams (g) culture medium, pH fermentation time, days. study pigment its optimization carried out Doehlert matrix, with fifteen experimental conditions, which thirteen had different combinations two repeated central point. fixed were 30ºC...

10.33448/rsd-v10i17.24311 article EN Research Society and Development 2021-12-22

The objective of this work was to optimize the production and characterize α-amylase produced by Aspergillus niger through solid state fermentation, using leaf residues C. linearifolius as substrate. For optimization, incubation temperature, initial humidity fermentation time were combined based on Doehlert experimental design. highest productivity enzyme 122.88 Ug-1, at 33oC, 70% 14 days time. In enzymatic characterization, extract presented pH 5.0 temperature 50oC, thermostable up 60oC,...

10.33448/rsd-v10i11.19891 article EN Research Society and Development 2021-09-07

A biotecnologia exerce influência significativa na economia mundial no que diz respeito à produção de enzimas.Metabólitos como estes possuem vasto campo aplicações são produzidos por microrganismos, e podem ser obtidos através bioprocessos a fermentação em estado sólido.Essa técnica contribui com o desenvolvimento do mercado biotecnológico, também minimiza impactos ambientais gerados pela resíduos descartados maneira inadequada contaminando meio ambiente.O objetivo deste trabalho foi avaliar...

10.18677/encibio_2017b85 article PT Enciclopédia Biosfera 2017-12-05

O conhecimento genético-molecular das espécies que apresentam relevância enquanto recurso natural é fundamental para elaboração de estratégias conservação e uso sustentável da biodiversidade.Os marcadores moleculares são importantes ferramentas obtenção dados genéticos relativos desde as estimativas populacionais até identificação regiões genômicas associados a características fenotípicas.Assim, objetivou-se apresentar um panorama do disponível na literatura sobre aplicação o estudo gênero...

10.18677/encibio_2019a40 article PT Enciclopédia Biosfera 2019-06-30

Nitrilases and nitrile hydratases/amidases hydrolyze nitriles into carboxylic acids and/or amides, which are used in industrial chemical processes. In the present study, 26 microorganisms, including yeasts filamentous fungi, a minimum solid mineral medium supplemented with glucose phenylacetonitrile were screened to evaluate their biocatalytic potential. Of these five fungi of genus Aspergillus selected subjected colorimetry studies production distinction nitrilase hydratase/amidase enzymes....

10.1002/bab.2269 article EN Biotechnology and Applied Biochemistry 2021-10-08

Este artigo é resultado das atividades de diagnóstico ações do Projeto Extensão da UESB intitulado Fitoterápicos no ambiente escolar: resgate conhecimento e cultura popular sobre plantas medicinais município Itapetinga-BA, o qual foi realizado período 2011 a 2012. O objetivo estudo realizar um levantamento etnobotânico comercializadas consumidas Itapetinga, Bahia. A coleta dados ocorreu com uma amostragem 39 questionários, aplicados 10 raizeiros 29 usuários medicinais, em duas feiras livres...

10.22481/recuesb.v2i4.2240 article PT Revista Extensão & Cidadania/Revista Extensão e Cidadania 1970-01-01

Benzonitrile is a compound found in pesticides. The use of these pesticides can cause environmental contamination, and the search for non-aggressive methods to eliminate residues necessary. In this study, fungi Aspergillus isolated from cocoa were investigated their benzonitrile bioremediation potential. cultured solid medium supplemented with nitrile glucose (a), (b), (c). Independent variables: time, inoculum, optimized using central composite design determine best microbial growth wet...

10.33448/rsd-v11i8.31078 article EN Research Society and Development 2022-06-25
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