Submitted by Kamila Costa (kamilavasconceloscosta@gmail.com) on 2015-06-26T20:43:16Z No. of bitstreams: 1 Dissertacao-Sheila K Caetano.pdf: 1781146 bytes, checksum: c20bac62f8cbce97febac4d11e616420 (MD5) / Approved for entry into archive by Divisão de Documentação/BC Biblioteca Central (ddbc@ufam.edu.br) on 2015-07-10T13:43:43Z (GMT) No. of bitstreams: 1 Dissertacao-Sheila K Caetano.pdf: 1781146 bytes, checksum: c20bac62f8cbce97febac4d11e616420 (MD5) / Approved for entry into archive by Divisão de Documentação/BC Biblioteca Central (ddbc@ufam.edu.br) on 2015-07-10T13:47:17Z (GMT) No. of bitstreams: 1 Dissertacao-Sheila K Caetano.pdf: 1781146 bytes, checksum: c20bac62f8cbce97febac4d11e616420 (MD5) / Made available in DSpace on 2015-07-10T13:47:17Z (GMT). No. of bitstreams: 1 Dissertacao-Sheila K Caetano.pdf: 1781146 bytes, checksum: c20bac62f8cbce97febac4d11e616420 (MD5) Previous issue date: 2014-08-09 / Não Informada / Libidibiaferreaknownpopularlyas “Jucá”or“pau-ferro”isused in traditional medicineto treatbruises, breathing problems, anemia anddiabetes.Pharmacological studiesdemonstrateanti-inflammatory action, anti-ulcer, antimicrobialandanticarcinogenicagainst pathogensin the oral cavity. Suchspeciesarecatalogedin the National FormularyandHerbal Medicineslistedin the National Listof Medicinal Plantsof Interestto SUS. The aim of this workis obtain a dentifriceprepared with a spray dried extract of LibidibiaferreaMartiusvar. ferreapresented antimicrobial activityagainstoral pathogens. Firstly the studies werecarried out with spraydried extractobtained from thebarkand seedless fruitofL.ferrea and it was identified theminimum inhibitoryconcentration (MIC) of both dried extracts evaluated. The studiesdemonstrated thatthebark spray dried extractshowed betterantimicrobial activity, being chosenfor incorporation inplasticsformulations. Thedosage formsselectedfor dry extractincorporation were gel and pastes, the proportionsof 2.5%and 5% (w/w) in the geland5% to10% (w / w) in the paste,boththe pharmaceuticalforms it was obtainedwithcarboxymethylcellulose. The antimicrobial activityof allformulations was evaluated against the strainsof Streptococcusoralis, Streptococcus salivarius, Streptococcus mutans, Lactobacillus caseiand Candidaalbicansemploying themicrodilution method. The results showedthatall formulationsoftoothpastescontainingdryextractshowedantimicrobial activity againstoral pathogensevaluated, and thisactivity was higher ingel formulationscontaining 2.5% of DEalsogreater than thedry extractwhen assessedin isolation, demonstratingpossibleactivity of somecomponentsof the formulations, which when analyzed separately, it was verified thatthesodium lauryl sulfatewasthe onlypharmaceuticaladjuvantto demonstrateantimicrobial activity by diffusion methodon solid medium, withinhibition zonesrangingfrom 12 to 28mm.Thus, the study demonstrates thatthere may be asynergism betweenpharmaceuticaladjuvant and substances present into the L. ferrea spray dried extractused in this work. / A espécie vegetal Libidibia ferrea denominada, popularmente, como Jucá ou pau-ferro é utilizada na medicina tradicional para tratamento de contusões, problemas respiratórios, anemias e diabetes. Estudos farmacológicos demonstram ação anti-inflamatória, antiúlcera, anticarcinogênica e antimicrobiana contra patógenos da cavidade bucal. A referida espécie está catalogada no Formulário Nacional de Fitoterápicos e consta na Relação Nacional de Plantas Medicinais de Interesse ao SUS. O presente trabalho refere-se à obtenção de um dentifrício a partir do extrato seco por aspersão de Libidibia ferrea Martius var.ferrea com atividade antimicrobiana contra patógenos bucais. Osensaios foram realizados a partir de extratos secos por aspersão obtidos das entrecascas dos frutos e das cascas de L. ferrea, onde foi identificada a concentração inibitória mínima (CIM). Os estudos realizados demonstraram que o extrato da casca apresentou melhor atividade antimicrobiana, sendo escolhido para incorporação nas formulações semissólidas. As formas farmacêuticas selecionadas para incorporação do extrato seco (ES) foram gel e pasta,nas proporções de 2,5% e 5% (m/m) no gele de 5% e 10% (m/m) na pasta, ambas as formas farmacêuticas obtidas à base de carboximetilcelulose. A atividade antimicrobiana de todas as formulações obtidas foi demonstrada frente às cepas de Streptococcus oralis, Streptococcus salivarius, Streptococcus mutans, Lactobacillus caseie Candida albicans empregando-se o método da microdiluição.Os resultados obtidos demonstraram que todas as formulações dos dentifrícios,contendo o extrato seco,apresentaram atividade antimicrobiana frente aos patógenos bucais avaliados, sendo que esta atividade foi maior nas formulações em gelcontendo 2,5%de ES, também, maior que o extrato seco quando avaliado de forma isolada, demonstrando possível atividade de alguns componentes das formulações, que quando analisados isoladamente, foi verificado queo lauril sulfato de sódio foi o único adjuvante farmacêuticoa demonstrar atividade antimicrobiana pelo método de difusão em meio sólido, com halos de inibição variando de 12 a 28 mm. Dessa forma, o estudo demonstra que pode haver um sinergismo entre os adjuvantes farmacêuticos e as substâncias presentes no extrato seco por aspersão de L. ferrea utilizado no presente trabalho.

<p>U ovom radu su ispitani hemijski sastav, antioksidativna, antihiperglikemijska, antiproliferativna i antimikrobna aktivnost liofiliziranih metanolnih ekstrakata tropa<br />maline (Rubusidaeus L) sorti Meeker (ETMM) i Willamette (ETMW), kupine (RubusfruticosusL) sorti Čačanska bestrna (ETKČ) i Thornfree (ETKT) i divlje borovnice<br />(Vacciniummyrtillus L) (ETB). Sadržaj ukupnih polifenola (TPh), flavonoida (TF) i antocijana (TAc) u ekstraktima tropova određeni su spektrofotometrijskim metodama.<br />Identifikacija i kvantifikacija fenolnih jedinjenja (fenolnihkiselina, flavonola i cijanidina) i vitamina C u ekstraktima tropova izvedena je HPLC analizom. Spektrofotometrijskim<br />testovima određena je antioksidativna aktivnostna DPPH i ABTS+ radikale i redukciona sposobnost ekstrakata. ESR spektroskopijom utvrđen je uticaj ekstrakata na reaktivne hidroksil i superoksid anjon radikale. Antihiperglikemijska aktivnost ekstrakata određena<br />je testom inhibicije &alpha;-glukozidaze. Antiproliferativna aktivnost ekstrakata tropova ispitana je in vitro, njihovim delovanjem na rast četiri histolo&scaron;ki različite humane ćelije:<br />HeLa (epitelni karcinom cerviksa), MCF7 (adenokarcinom dojke), HT-29 (adenokarcinom debelog creva) i MRC-5 (humani fetalni fibroblasti pluća). Antimikrobna aktivnost ekstrakata tropova bobičastog voća ispitana je na odabrane sojeve Gram-pozitivnih i Gram-negativnih bakterija, kvasaca i plesni disk difuzionom metodom i metodom &bdquo;bunarčića&rdquo;. Ispitana je i mogućnost primene liofiliziranih ekstrakata tropova bobičastog voća kao funkcionalnog dodatka sokovima od voća. Laboratorijski proizvedenim obogaćenim sokovima je određen sadržaj TPh, TF i TAc i utvrđena antioksidativna aktivnost testom redukcione sposobnosti i DPPH testom. Rezultati ispitivanja hemijskog sastava, antioksidativne, antihiperglikemijske, antiproliferativne i antimikrobne aktivnosti ETMM, ETMW, ETKČ, ETKT i ETB ukazuju da su svi ispitivani ekstrakti tropova potencijalni izvor prirodnih<br />bioaktivnih jedinjenja, a antioksidativna aktivnost obogaćenih sokova ukazuje na mogućnost kori&scaron;ćenja ovih ekstrakata, kao funkcionalnih aditiva u proizvodnji različitih<br />visoko vrednih prehrambenih proizvoda.</p> / <p>This work examined the chemical composition, the antioxidant,<br />antihyperglycaemic, antiproliferative and antimicrobial<br />activity of the freeze-dried raspberry (Rubus idaeus L.)<br />varieties Meeker (ETMM) and Willamette (ETMW), blackberry<br />(Rubus fruticosus L.) varieties (ETKČ) and Thornfree<br />(ETKT), and wild blueberry (Vaccinium myrtillus L.) (ETB)<br />pomaces methanol extracts. The content of total polyphenols<br />(TPh), total flavonoids (TF) and total anthocyanins (TAc) in<br />the pomace extracts were determined spectrophotometrically.<br />Identification and quantification of the phenolic compounds<br />(phenol acids, flavonols and cyanidins) and ascorbic acid in<br />the pomace extracts was performed by HPLC analysis. The<br />antioxidant activities of the extracts was determined spectrophotometrically<br />using DPPH and ABTS+ free radicals and<br />reducing ability assay. ESR spectroscopy is used for determination<br />of pomace extracts&rsquo; influence on reactive hydroxyl<br />and superoxide anion radicals. Antihyperglycaemic activity of<br />the pomace extracts was determined using &alpha;-glucosidase inhibition<br />assay. The antiproliferative activity of the pomace extracts<br />was tested in vitro, testing their influence on the growth<br />of four histologically different human tumor cells: HeLa<br />(cervix epithelioid carcinoma), MCF7 (breast adenocarcinoma),<br />HT-29 (colon adenocarcinoma) and MRC-5(human fetal<br />lung fibroblasts). Antimicrobial activity of berry pomace extracts was tested on selected strains of Gram-positive and<br />Gram-negative bacteria, yeasts and molds with the disc diffusion<br />method and the method of &ldquo;wells&rdquo;. The possibility of<br />freeze dried berry pomace extracts application as a fruit functional<br />additive was investigated as well. Laboratory produced<br />enriched juice was tested in terms of TPH, TF and TAc content,<br />reducing ability and DPPH scavenging ability as well.<br />The results of testing the chemical composition, the antioxidative,<br />antihyperglycaemic, antiproliferative and antimicrobial<br />activities of ETMM, ETMW, ETKČ, ETKT and ETB, indicate<br />that all investigated pomace extracts are a potential source of<br />natural bioactive compounds, and that the antioxidant activity<br />enriched juice indicates the possibility of using these extracts,<br />as a functional additive in the production of various high-value<br />food products.</p>