Fernanda Kuhn

ORCID: 0000-0003-0179-9822
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Research Areas
  • Microencapsulation and Drying Processes
  • Phytochemistry Medicinal Plant Applications
  • Bee Products Chemical Analysis
  • Botanical Research and Applications
  • Phytochemicals and Antioxidant Activities
  • Essential Oils and Antimicrobial Activity
  • Proteins in Food Systems
  • Aquaculture disease management and microbiota
  • Antioxidant Activity and Oxidative Stress
  • Insect Pest Control Strategies
  • Aquaculture Nutrition and Growth
  • Invertebrate Immune Response Mechanisms
  • Agricultural and Food Sciences
  • Environmental DNA in Biodiversity Studies
  • Heavy Metals in Plants
  • Complementary and Alternative Medicine Studies
  • Pharmacology and Obesity Treatment
  • Plant Parasitism and Resistance
  • Sleep and Wakefulness Research
  • Biochemical Analysis and Sensing Techniques
  • Genomics and Phylogenetic Studies
  • Therapeutic Uses of Natural Elements
  • Edible Oils Quality and Analysis
  • Phytochemical compounds biological activities
  • Microbial Metabolites in Food Biotechnology

Swiss Federal Institute for Forest, Snow and Landscape Research
2025

Universidade Federal do Rio Grande do Sul
2020-2022

Community University of Chapecó Region - Unochapecó
2014-2018

Empresa de Pesquisa Agropecuária e Extensão Rural de Santa Catarina
2015

The aims of this research were first, to evaluate the antibacterial potential commercial thyme essential oil against V. alginolyticus and parahaemolyticys second, using spray drying technique produce microcapsules. chemical compounds microcapsules identified quantified being thymol component present at highest concentration. Oil-in-water (O/W) emulsions prepared obtained with a dryer maltodextrin as wall material (ratio 1:4). Thyme exhibited antimicrobial activity parahaemolyticus...

10.1590/1519-6984.08716 article EN cc-by Brazilian Journal of Biology 2017-08-16

Abstract Environmental DNA (eDNA) metabarcoding has revolutionized biodiversity monitoring, offering non‐invasive tools to assess ecosystem health. The complexity of eDNA data poses major challenges for conventional ordination methods in understanding assemblage similarities and assessing patterns. Here, we introduce ORDNA (ORDination via Deep Neural Algorithm), a new deep learning method tailored sample ordination. Leveraging artificial neural networks, processes raw sequences from samples...

10.1111/2041-210x.70033 article EN cc-by-nc Methods in Ecology and Evolution 2025-04-03

The jaboticaba tree, Plinia trunciflora (O. Berg) Kausel, is popularly named “jabuticabeira” in Brazil and used folk medicine to treat diabetes chronic inflammation of the tonsils, but studies evaluating central effects this species are limited. This study evaluated antidepressant-like antioxidant P. (PT) aqueous extract, which five different anthocyanins were identified. PT showed significant ferric-reduction power DPPH radical scavenging activity vitro reduced lipid peroxidation both ex...

10.1155/2015/601503 article EN Evidence-based Complementary and Alternative Medicine 2015-01-01

Bougainvillea glabra bracts extract was encapsulated by spray-drying and freeze-drying, using polydextrose, inulin, egg albumin as carrier materials. All dispersions prepared before the drying process exhibited shear-thinning behavior of pseudoplastic fluids. The spray-dried powder containing inulin material showed lowest hygroscopicity, while highest solubility values were obtained for all powders polydextrose. Polydextrose provided retention total phenolic compounds (94.92%), freeze-drying...

10.1111/jfpp.14834 article EN Journal of Food Processing and Preservation 2020-07-24

Abstract With the present project, phytochemical composition of Uncaria tomentosa cultivated in Chapecó (Brazil) was analyzed and then potential using this local plant extract to protect by oral feeding virus‐infected Litopenaeus vannamei shrimp also investigated. For study, five treatments were tested: uninfected fed with pelleted feed (T C ), WSSV‐infected 1 infected 1% ethanol U. (EEUT) 2 2% EEUT 3 4% 4 ). The chemical analysis showed presence alkaloids, flavonoids, sterols, terpenes,...

10.1111/jwas.12483 article EN Journal of the World Aquaculture Society 2017-11-22

Bougainvillea glabra bracts aqueous extract was co-encapsulated in Ca(II)-alginate beads, with the inclusion of egg albumin and whey protein isolate. Rheological measurements dispersions prepared advance to beads formation showed a viscosity reduction by WPI, however, increased due higher intermolecular association alginate, as confirmed FT-IR. The supplemented proteins encapsulation efficiencies, values than 70% for phenolic compounds 50% betalains. Rupture strength varied from 31.1 38.9 N...

10.1111/jfpp.15918 article EN Journal of Food Processing and Preservation 2021-09-01

<p><em>Fish oil consists of an important natural source omega-3 fatty acids. Studies have shown that the intake these compounds is directly related to prevention specific kinds cancer, inflammation and allergies, as well improvement in development function central nervous system. This study aimed evaluate effect different emulsifiers polymeric material membranes used membrane emulsification step (EM Premix) for encapsulation fish oil, followed by atomization using spray dryer....

10.14685/rebrapa.v5i1.133 article EN Revista Brasileira de Pesquisa em Alimentos 2014-08-15

Atualmente o Brasil depende de importações azeite oliva para atender seu mercado, e a partir do cultivo oliveiras em solo brasileiro visa-se redução custos no processo. Assim surge necessidade avaliar composição química proveniente dessas plantações. Para azeites das espécies Koroneiki, Arbequina Arbosana, cultivadas oeste Santa Catarina, determinou-se teor acidez, índice peróxido, iodo (Wijs), extinção específica por absorção 270 nm potencial antioxidante (DPPH). acidez obteve-se resultados...

10.5151/chemeng-cobeq2014-1051-21350-172088 article PT cc-by 2015-02-01

O presente trabalho teve por objetivo avaliar o potencial antioxidante de frutas silvestres da região Sul do Brasil através capacidade seqüestrar radical DPPH, bem como quantificar teor polifenóis totais e antocianinas monoméricas. extrato aquoso sete foi estudado: Morus nigra, Psidium cattleianum, Butia yatay, Myrcianthes edulis, Camponesia guaviroba, Eugenia uniflora Allophylus edulis. Todas as apresentaram atividade antioxidante, no entanto, a ação diferenciada entre elas, com destaque...

10.5151/chemeng-cobeq2014-1509-18947-160607 article PT cc-by 2015-02-01

Atualmente, busca-se por benefícios provenientes dos produtos naturais terapêuticos, dentre eles destaca-se o hibisco, rico em antocianinas e outros compostos fenólicos responsáveis pelo caráter antioxidante. Neste sentido, este trabalho teve objetivo avaliar as melhores condições de extração flores do Hibiscus sabdariffa. As foram maceradas diferentes sistemas solventes que compreendem: água acidificada (pH 1,5), misturas 50, 70, 90 100% (v/v) etanol/água metanol/água. O teor totais foi...

10.5151/chemeng-cobeq2014-1245-20276-155624 article PT cc-by 2015-02-01

Nos últimos anos, a jabuticaba tem sido alvo de inúmeras pesquisas, devido à sua elevada atividade antioxidante, podendo seu uso ser promissor nos setores alimentício e farmacêutico. Para prevenir perda compostos ativos, objetivou-se no presente trabalho microencapsular o extrato jabuticaba, obtido através da extração com dióxido carbono supercrítico. A microencapsulação foi realizada atomização do em spray dryer, utilização maltodextrina como material parede das microcápsulas. O teor...

10.5151/chemeng-cobeq2014-1519-18905-172430 article PT 2015-02-01

The aim of this study was to evaluate the appetite suppression and insecticidal activity Melia azedarach aerial component extracts on larvae Spodoptera frugiperda obtained from maceration by solvent, ultrasound supercritical CO 2 extraction. Extracts components M. were three different extraction methods (maceration, extraction) using solvents (ethanol, n-hexane, ethyl acetate ) for use in testing S.  frugiperda (Lepidoptera: Noctuidae). sprayed third instar larvae, which then placed corn...

10.17648/uezo-ast-v4i1.123 article EN cc-by Acta Scientiae et Technicae 2016-08-17
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