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Activity of encapsulated Lactobacillus bulgaricus in alginate-whey protein microspheres BABT
Chen,Meng-Yan; Zheng,Wei; Dong,Qiu-Yue; Li,Zhen-Hua; Shi,Lu-E; Tang,Zhen-Xing.
In this work, alginate-whey protein was used as wall materials for encapsulating Lactobacillus delbrueckii subsp. bulgaricus (L. bulgaricus). The characteristics of encapsulated and free L. bulgaricus showed that the free L. bulgaricus lost viability after 1 min exposure to simulated gastric fluid (SGF) at pH 2.0 and 2.5. However, the viability of encapsulated L. bulgaricus did not decrease in SGF at pH 2.5 for 2 h incubation. The viable numbers of encapsulated L. bulgaricus decreased less than 1.0 log unit for 2 h incubation in SGF at pH 2.0. For bile stability, only 1.2 log units and 2.0 log units viability of the encapsulated L. bulgaricus was lost in 1 and 2% bile for 1 h exposure, respectively, compared with no survival of free L. bulgaricus under the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Encapsulation; Alginate; Whey protein; Probiotics; Stability.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132014000500736
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Análise por infravermelho e citotoxicidade das micropartículas de óleos essenciais de Ocimum Gratissimum L. E Cymbopogon Citratus (D.C.) stapf. Repositório Alice
FARIAS, S. S. DE; SANTOS, L. M. B. DOS; CUNHA, A. P.; OLIVEIRA, D. F. DE; PEREIRA, R. de C. A.; GUEDES, M. I. F.; RICARDO, N. M. P. S.; MORAIS, S. M. DE.
bitstream/item/219802/1/ART20124.pdf
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Encapsulação; Citotoxicidade; Raio Infravermelho; Encapsulation; Cytotoxicity.
Ano: 2020 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1128893
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Ascorbic acid encapsulation in a glassy carbohydrate matrix via hot melt extrusion: Preparation and characterization Ciênc. Tecnol. Aliment.
CHANG,Dawei; HAYAT,Khizar; ABBAS,Shabbar; ZHANG,Xiaoming.
Abstract Hot melt extrusion technology using a twin-screw extruder was employed to obtain maltodextrin, maltodextrin-gum arabic and maltodextrin-trehalose based glassy extrudates containing ascorbic acid (dispersed phase). Ascorbic acid payload of all three formulations was more than 15.67 g/100 g extrudates while the ascorbic acid yield was above 97%. The glass transition temperature (Tg) of all extrudates was above 40 °C. The expansion ratio of the extrudates and Tg reduced due to the incorporation of trehalose and gum arabic to maltodextrins, respectively. The results of Scanning Electron Microscopy, X-ray diffraction and Fourier-transform Infrared Spectroscopy confirmed that the formulated feed material turned into a glassy state, whereas, ascorbic...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Ascorbic acid; Encapsulation; Melt-extrusion; Maltodextrins; Glass transition temperature.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612019000300660
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Characteristics of freeze-dried nanoencapsulated fish oil with whey protein concentrate and gum arabic as wall materials Ciênc. Tecnol. Aliment.
VAHIDMOGHADAM,Farideh; POURAHMAD,Rezvan; MORTAZAVI,Ali; DAVOODI,Daryoush; AZIZINEZHAD,Reza.
Abstract Fish oil has many health effects, but due to its strong odor and rapid spoilage, its use in food formulations is limited. For these reasons, nanoencapsulation of fish oil can be important. The purpose of this study was to investigate the influence of whey protein concentrate (WPC) and gum arabic as wall materials on the characteristics of nanoencapsulated fish oil powder. Gum arabic and WPC were used in varying amounts for nanoencapsulation of fish oil. An oil-in-water emulsion with 6% fish oil and 20% aqueous solution of wall materials was prepared by sonication (24 kHz for 120 sec). The diameter of the emulsion droplets was measured by particle size analysis and they then were dried in a freeze-drier. The results showed that the type and...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Encapsulation; Fish oil; Gum arabic; Nano-emulsion; Whey protein concentrate.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612019000600475
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Characterization of powder from the permeate of yacon extract by ultrafiltration and dehydrated by spray drying Ciência e Agrotecnologia
Brites,Marcela Lazzare; Meira,Stela Meister; Brandelli,Adriano; Noreña,Caciano Zapata.
ABSTRACT Yacon root is a functional food which contains antioxidants and prebiotics compounds. This study aimed to evaluate the physical, chemical and prebiotic characteristics of a yacon extract powder obtained by ultrafiltration (UF) with membranes of 10 and 30 kDa and encapsulation of the resulting permeate by spray drying. Drying air temperatures of 140 and 160 ºC and concentrations of gum arabic of 10 and 15% were tested. The samples had solubility values ​​greater than 90% while the hygroscopicity decreased with increasing gum concentration and drying temperature. Electron microscopy showed a strong tendency to agglomeration of smaller particles around the larger ones, mainly at a temperature of 140 ºC. Regarding color, the parameter L* showed that...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Encapsulation; Inulin; Prebiotic activity.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542016000500585
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Compatibility of polymers to fungi Beauveria bassiana and Metarhizium anisopliae and their formulated products stability Agronomy
Wenzel Rodrigues, Inajá Marchizeli; Batista Filho, Antonio; Giordano, Isabella Barichello; Denadae, Bárbara Evelin; Fernandes, João Batista; Forim, Moacir Rossi.
Stability during storage is a limiting factor in the development and use of bioinsecticides. This study aims to evaluate the compatibility of the entomopathogenic fungi Metarhizium anisopliae and Beauveria bassiana with components used in encapsulated formulations and to evaluate shelf-life in formulations with B. bassiana. Sodium alginate and maltodextrin, hemicellulose, and dimethyl sulfoxide solvents were evaluated. Compatibility was evaluated by mixing the components with PDA, and the parameters evaluated were vegetative growth, sporulation and viability. The formulations of fungi were prepared in various concentrations of sodium alginate and then added drop-wise to calcium chloride. To evaluate the stability, formulations were stored at 26.5, 4.0, and...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Microbial control; Formulations; Entomopathogens; Encapsulation; Shelf-life; Microbiology..
Ano: 2017 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/32903
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Controlled Release of TBH Herbicide Encapsulated on Ca-ALG Microparticles: Leaching and Phytointoxication Plants Planta Daninha
MACEDO,D.F.; DOURADO JR.,S.M.; NUNES,E.S.; MARQUES,R.P.; MORETO,J.A..
ABSTRACT: The aim of this work was to demonstrate a detailed study of the controlled release of the herbicide Tebuthiuron (TBH) encapsulated in microparticles of calcium alginate (Ca-ALG), to evaluate the phytotoxicity in different concentrations of herbicide (4, 6 and 8 g L-1), and their correlation with the depth of leaching using bioindicator plants. The Ca-ALG microparticles were prepared from the crosslinking of sodium alginate by Ca++ containing varied amounts of TBH supplied in calcium chloride (CaCl2) aqueous solution. The results showed that TBH herbicide, when encapsulated, leached to shallow depths relative to the conventional, non-encapsulated herbicide (which moved to a depth of 40-50 cm). The concentration of 4 g L-1 was the one that leached...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Pesticides; Biodegradable polymer; Environmental impact; Encapsulation; Agriculture.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582019000100266
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Cotesia flavipes (CAM) (Hymenoptera: Braconidae) Supresses Immune Responses In Diatraea flavipennella (BOX) (Lepidoptera: Crambidae) Anais da ABC (AABC)
PASSOS,ELIANA M. DOS; WANDERLEY-TEIXEIRA,VALÉRIA; MARQUES,EDMILSON J.; TEIXEIRA,ÁLVARO A.C.; BRAYNER,FÁBIO A..
The present research aimed to elucidate which aspects of immune responses in Diatraea flavipennella are suppressed by the parasitoid Cotesia flavipes, thus, ensuring parasitism success. We investigated the presence of apoptosis in fat body cells through the TUNEL technique. According to the results, reduced levels of nitric oxide and phenoloxidase activity were observed in larvae parasitized for three days, and reduced total number of hemocytes, after three and seven days. An increase in plasmatocytes and decrease in spherulocytes numbers were observed in the differential count on the third day of parasitism. The number of melanized microspheres in parasitized larvae was low and indicated less intense melanization. The ultrastructural analysis confirmed...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Encapsulation; Hemocytes; Humoral response; Parasitoid; Sugarcane Moth Borer (Diatraea saccharalis).
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652014000402013
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Defense reactions of Dermatobia hominis (Diptera: Cuterebridae) larval hemocytes Biocell
Faraldo,Ana Carolina; Lello,Edy.
The defense reactions against biological (Histoplasma capsulatum and Escherichia coli) and non-biological materials (China ink and nylon thread) were tested in vivo in third instar larvae of Dermatobia hominis. The cellular defense performed by larval hemocytes was observed under electron microscopy. China ink particles were phagocytosed by granular cells 5 h after injection. E. coli cells were internalized by granular cells as early as 5 min after injection and totally cleared 180 min post-injection, when many hemocytes appeared disintegrated and others in process of recovering. H. capsulatum yeasts provoked, 24 h after being injected, the beginning of nodule formation. Nylon thread was encapsulated 24 h after the introduction into the hemocoel. Our...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Dermatobia Hominis; Hemocytes; Phagocytosis; Nodule Formation; Encapsulation.
Ano: 2003 URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0327-95452003000200005
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Determining the effects of encapsulated polyphosphates on quality parameters and oxidative stability of cooked ground beef during storage Ciênc. Tecnol. Aliment.
BİLECEN,Damla; KILIÇ,Birol.
Abstract Effects of encapsulated (e) sodium tripolyphosphate (STP), sodium pyrophosphate (SPP) and various combinations of encapsulated and un-encapsulated (u) forms of these polyphosphates on lipid oxidation in the cooked ground beef during storage (0, 1, 7 d at 4 0C) were determined. pH, color, cooking loss (CL), thiobarbituric acid reactive substances (TBARS), lipid hydroperoxide (LPO) and soluble orthophosphate (OP) analysis were conducted. Study results indicated that STP increased pH, whereas SPP decreased pH compared to control (p<0.05). SPP was determined as the most effective polyphosphate type to inhibit lipid oxidation (p<0.05). In addition, the use of eSPP significantly reduced OP content compared to uSPP (p<0.05). The lowest TBARS...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Meat; Polyphosphate; Encapsulation; Lipid oxidation.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612019000500341
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Development of artificial sugarcane seed CP-54 from three cultivars (cv MEX 69-290; cv MEX 68-P-23; cv. CP 72-2086) using polymers in Tabasco, Mexico Acta Agron. (Palmira)
Álvarez-Sánchez,Geiner F; Arias-de la Cruz,Heidi L; Salgado-García,Sergio; Córdova-Sánchez,Samuel; Ortiz-Laurel,Hipólito; Castelán-Estrada,Mepivoseth; García-de la Cruz,Rubén; Castañeda-Ceja,Raúl.
Abstract Precision mechanized sowing of sugarcane has been delayed due to germination failures caused in sowing process by pieces of sugarcane, generating economic losses by reducing production. The aim of this study was to evaluate different polymers and cultivars of sugarcane to elaborate artificial seed CP-54, seed germination and quality of sugarcane plants. An experiment was carried out in two stages in experimental field of the Colegio de Postgraduados Campus Tabasco, Mexico. Results indicate that the best physical stage of artificial seed CP-54 was obtained in Mex 69-290, Mex 68-P-23 and CP 72-2086 cultivars encapsulated with starch polymers and sodium alginate. Artificial seed CP-54 germination was 100 and 84% encapsulated with starch and alginate...
Tipo: Journal article Palavras-chave: Encapsulation; Precision agriculture; Saccharum spp.; Seed germination; Buds; Sugarcane response.
Ano: 2018 URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-28122018000100094
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Effect of ph on the stability of red beet extract (Beta vulgaris l.) microcapsules produced by spray drying or freeze drying Ciênc. Tecnol. Aliment.
ANTIGO,Jéssica Loraine Duenha; BERGAMASCO,Rita de Cássia; MADRONA,Grasiele Scaramal.
Abstract Red beets is rich in phenolic acids and has high antioxidant capacity, and can be used to produce a natural dye. This study evaluated the effect of pH (3 to 6) on the stability of red beet extract microcapsules, dried by freeze drying and spray drying and stored at room temperature. The microcapsules were produced using a combination of maltodextrin and xanthan gum as encapsulating agents and stored for 7 days. For all evaluated microcapsules, a degradation of betanin was observed, however, that degradation was independent of pH, with the exception of the sample with maltodextrin and dried by spray drying. The freeze dried products showed lower degradation constants and higher half-life (t1/2) when comparing with the spray dried samples. The...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Encapsulation; Natural dye; Betanin; Phenolic compounds; Maltodextrin; Xanthan gum.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612018000100072
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Encapsulação de lipases obtidas por Aspergillus Niger em géis de alginato de sódio. Repositório Alice
GALDINO, V. S.; BRAGA, A. L. M.; SOUSA, F. C. A.; SOUZA, E. F. de; TONON, R. V.; GOTTSCHALK, L. M. F..
O consumo elevado de lipídios de baixa qualidade pode trazer sérios danos à saúde, e uma alternativa para a melhoria destes é o desenvolvimento de óleos com propriedades funcionais através da interesterificação utilizando lipases. A encapsulação é um método utilizado para melhorar o poder catalítico das lipases, podendo afetar sua atividade e estabilidade, alterando sua reutilização e viabilidade industrial. O objetivo deste trabalho foi, portanto, avaliar o impacto do método de encapsulação por gelificação ionotrópica na atividade enzimática de lipases produzidas por Aspergillus niger. A gelificação das enzimas com alginato foi eficiente e demonstrou loading, eficiência e eficácia de encapsulação com valores de 1,17%, 72,2% e 88% respectivamente. Os géis...
Tipo: Artigo em anais de congresso (ALICE) Palavras-chave: Encapsulação; Gelificação ionotrópica; Encapsulation; Lipases; Ionotropic gelation.
Ano: 2016 URL: http://www.alice.cnptia.embrapa.br/handle/doc/1058251
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Encapsulação por gelificação iônica e spray drying de um Concentrado rico em licopeno obtido a partir da melancia. Repositório Alice
SAMPAIO, G. L. A..
bitstream/item/181989/1/Dissertacao-Final-capadura-Gessica-Lira.pdf
Tipo: Tese/dissertação (ALICE) Palavras-chave: Ionic gelation; Licopeno; Encapsulação; Gelificação iônica; Tecnologia de Alimento; Melancia; Spray drying; Watermelons; Lycopene; Encapsulation; Gelation.
Ano: 2018 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1094595
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Encapsulation of lycopene using spray-drying and molecular inclusion processes BABT
Nunes,Itaciara Larroza; Mercadante,Adriana Zerlotti.
This study aimed to obtain encapsulated lycopene in a powder form, using either spray-drying or molecular inclusion with beta -cyclodextrin ( beta -CD) followed by freeze-drying. The encapsulation efficiency using spray-drying ranged from 94 to 96%, with an average yield of 51%, with microcapsules showing superficial indentations and lack of cracks and breakages. Lycopene- beta -CD complexes were only formed at a molar ratio of 1:4, and irregular structures of different sizes that eventually formed aggregates, similar to those of beta -CD, were observed after freeze-drying. About 50% of the initial lycopene did not form complexes with beta -CD. Lycopene purity increased from 96.4 to 98.1% after spray-drying, whereas lycopene purity decreased from 97.7 to...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Lycopene; Encapsulation; Spray-drying; Gum arabic; Inclusion complex; Beta -cyclodextrin.
Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132007000500018
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Estudos preliminares aplicados ao nanoencapsulamento de inseticidas neonicotinóides: tiametoxam. Repositório Alice
ASSALIN, M. R.; SOUZA, D. R. C. de; ROSA, M. A.; MOLTOCARO, R. C. R.; DONAIRE, P.; DURAN, N..
Resumo: O HLB é uma das mais importantes doenças dos citros da atualidade. A severidade da doença se dá principalmente pela rápida e eficiente disseminação das bactérias associadas ao HLB, pelo psilídeo Diaphorina citri e pela ausência de resistência genética em citros. O controle químico é a principal forma de controle dos psilídeos, existindo diferentes inseticidas registrados com esta finalidade. Tiametoxam é um dos princípios ativos utilizados no controle do HLB. Formulações de pesticidas nanoencapsulados permitem uma liberação controlada do ativo bem como proteção contra sua degradação prematura, possibilitando o uso do inseticida convencional de maneira mais sustentável. Neste trabalho estudos preliminares aplicados ao nanoencapsulamento do...
Tipo: Artigo em anais de congresso (ALICE) Palavras-chave: Tiametoxam; Nanotecnologia; Greening; Liberação Controlada; Controlled release; Inseticida; Insecticides; Thiamethoxam; Encapsulation; Nanoparticles; Nanotechnology; Greening disease.
Ano: 2017 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1085859
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Funcionalidade da oleoresina de páprica microencapsulada em goma-arábica e amido de arroz/gelatina. Repositório Alice
SANTOS, A.B.; FÁVARO-TRINDADE, C.S.; GROSSO, C.R.F..
O objetivo deste trabalho foi avaliar a funcionalidade da oleoresina de páprica microencapsulada em goma-arábica e amido de arroz/gelatina, incorporada nos sistemas-modelo bolo e gel de gelatina. Avaliou-se a cor por meio de medida instrumental e aceitação sensorial por atributos de aparência e aceitação global. O pigmento encapsulado solubilizou-se, tingiu e se distribuiu uniformemente nos bolos, os quais apresentaram boa aceitação global. Nos géis, a goma apresentou desempenho superior ao amido/gelatina quanto à aparência, porém, todos os tratamentos obtiveram baixa aceitação global. A presença da oleoresina microencapsulada não interferiu negativamente no sabor, aroma ou textura dos sistemas analisados.
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Encapsulação; Especiaria; Atomização; Teste de aceitação; Encapsulation; Spice; Spray drying; Consumer test.
Ano: 2006 URL: http://www.alice.cnptia.embrapa.br/handle/doc/118459
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GROWTH OF ‘PRATA-ANA’ BANANA’S MICROSHOOTS CLONE GORUTUBA FROM SYNTHETIC SEEDS:SUBSTRATES AND BAP CONCENTRATION Rev. Bras. Frutic.
PEREIRA,JÚLIO CÉSAR GOMES; ROCHA,SELMA SILVA; LONDE,LUCIANA CARDOSO NOGUEIRA; MOTA,MARCELA CAROLINE BATISTA DA; ALVES,PABLO FERNANDO SANTOS; VIANA,WANDER SILVA.
ABSTRACT The banana crop stands out as an activity of great social and economic importance in Brazil, which occupies the fifth place in world production. Synthetic seed production is becoming promising for a micropropagation and in vitro conservation. The aim of the study was to analyze the conversion and growth of ‘Prata-anã’ banana’s microshoots clone Gorutuba from synthetic seed in MS medium and vermiculite, different substrates and concentrations of BAP (6-benzylaminopurine) associated with ANA (acetic naphthalene acid) in the constitution of its capsule were tested. The microshoots were immersed in the sodium alginate matrix (3%) and dripped in a solution of CaCl2.2H2O (100 mM) for complexation and then in KNO3 solution (100 mM) to decomplex. The...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Encapsulation; Micropropagation; Musa sp.; Growth regulators.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452017000500704
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Hepatic toxicity caused by PLGA-microspheres containing usnic acid from the lichen C ladonia substellata (AHTI) during pregnancy in Wistar rats Anais da ABC (AABC)
MARINHO,KETSIA S.N.; ANTONIO,ERIVALDO A.; SILVA,CAMILLA V.N.S.; SILVA,KEILA T. DA; TEIXEIRA,VALÉRIA W.; AGUIAR JUNIOR,FRANCISCO C.A. DE; SANTOS,KATHARINE R.P. DOS; SILVA,NICÁCIO H. DA; SANTOS,NOEMIA P.S..
ABSTRACT This study aimed to evaluate the teratogenic and hepatotoxic potential of the usnic acid encapsulated into PLGA-microspheres. In total, 12 female Wistar rats in pregnancy were randomly distributed in the control group (n= 6) that received 1.0 mL of physiological solution and treatment group (n= 6) that received 25 mg/kg of encapsulated usnic acid by oral administration. All females were euthanized at day 20 of pregnancy and their fetuses were removed and analyzed. During the pregnancy was observed a reduction in weight gain. There was no difference in serum transaminases levels analyzed as well as any difference in liver weight in both groups. The histomorphometric analysis of the liver from the treatment group revealed an increase in number of...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Encapsulation; Fetotoxicity; Hepatotoxicity; Secondary metabolite.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652017000301073
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In Vitro Mid-Term Conservation of Acorus calamus L. via Cold Storage of Encapsulated Microrhizome BABT
Quraishi,Afaque; Mehar,Snigdha; Sahu,Durga; Jadhav,Shailesh Kumar.
ABSTRACT In vitro rhizome production, encapsulation and cold storage of Acorus calamus were attempted for its propagation and ‘true-to-type’ conservation. Shoot cultures were initiated using underground rhizome buds, on 6-benzyladenine (BA) containing Murashige and Skoog (MS) medium. Maximum microrhizome production was observed in presence of 33.3 µM BA, on modified MS medium containing 6% sucrose, 100 mg/L citric acid and 1 g/L polyvinyl pyrrolidone-40. Synthetic seeds were produced from regenerated microtubers by encapsulation in calcium alginate beads. These synthetic seeds were stored in complete darkness at 100C temperature for different durations for mid-term conservation. After cold storage, synthetic seeds were re-cultured in vitro, 100% survival...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Aromatic plant; Encapsulation; Sweet Flag; Synthetic seeds; Plant tissue culture.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132017000100412
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