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| Registros recuperados: 25 | |
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| 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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| 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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| 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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| 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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| 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: Info:eu-repo/semantics/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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| 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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| 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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| Santana,Audirene A.; Oliveira,Rafael A. de; Kurozawa,Louise E.; Park,Kil J.. |
| The aim of this study was to evaluate the microencapsulation of pequi pulp by spray drying. A central composite rotational design was used in order to evaluate the effect of the independent variables: inlet air temperature, surfactant concentration and modified starch concentration. The dependent variables were assumed as yield of the process and the product features microencapsulated. A selection of the best process condition was performed to obtain the best condition of a product with the highest vitamin C and carotenoids content. Powders showed moisture content below 2%. The experimental values of hygroscopicity, yield, water activity, total carotenoids and vitamin C powders ranged from 7.96 to 10.67 g of adsorbed water/100g of solids, 24.34 to 49.80%,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Caryocar brasiliense; Spray drying; Experimental design; Encapsulation; Morphology. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162014000500017 |
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| Frézard,F.; Michalick,M.S.M.; Soares,C.F.; Demicheli,C.. |
| The antimonial drug, meglumine antimoniate, was successfully encapsulated in dehydration-rehydration vesicles and in freeze-dried empty liposomes (FDELs). High encapsulation efficiencies (from 28 to 58%) and low weight ratios of lipids to encapsulated antimony (from 1:0.15 to 1:0.3) were achieved. These formulations, contrary to those obtained by conventional methods, can be stored as intermediate lyophilized forms and reconstituted just before use. The efficacy of FDEL-encapsulated meglumine antimoniate was evaluated in hamsters experimentally infected with Leishmania chagasi. A significant reduction of liver parasite burdens was observed in animals treated with this preparation, when compared to control animals treated with empty liposomes. In contrast,... |
| Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Liposomes; Glucantime; Meglumine antimoniate; Leishmaniasis; Encapsulation. |
| Ano: 2000 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2000000700016 |
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| Scaglia,M.; Chaud-Netto,J.; Brochetto-Braga,M. R.; Ceregato,S. A.; Gobbi,N.; Rodrigues,A.. |
| Large scale mass rearing of natural enemies has been a mean of improving biological control in the sugarcane intensive agriculture. Among them, Cotesia flavipes, a gregarious koinobiont endoparasitoid, was imported by Brasil to control caterpillars of the sugarcane borer Diatraea saccharalis. The C. flavipes larval development depends on its association with polydnavirus, which blocks the host defense reaction. To verify if the oviposition sequence (1st, 2nd or 3rd) and the female condition (mated or virgin) interfere in the number of C. flavipes descendents, 4th instar caterpillars of D. saccharalis were parasitized. Analysis of the data showed that: a) there is an inverse correlation between the parasitism efficiency and the host reaction... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cotesia flavipes; Diatraea saccharalis; Oviposition sequence; Encapsulation; Chrysalises; Parasitism. |
| Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992005000300007 |
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| Carvalho Júnior,A.D.; Vieira,F.P.; De Melo,V.J.; Lopes,M.T.P.; Silveira,J.N.; Ramaldes,G.A.; Garnier-Suillerot,A.; Pereira-Maia,E.C.; De Oliveira,M.C.. |
| We encapsulated cisplatin into stealth pH-sensitive liposomes and studied their stability, cytotoxicity and accumulation in a human small-cell lung carcinoma cell line (GLC4) and its resistant subline (GLC4/CDDP). Since reduced cellular drug accumulation has been shown to be the main mechanism responsible for resistance in the GLC4/CDDP subline, we evaluated the ability of this new delivery system to improve cellular uptake. The liposomes were composed of dioleoylphosphatidylethanolamine (DOPE), cholesteryl hemisuccinate (CHEMS), and distearoylphosphatidylethanolamine-polyethyleneglycol 2000 (DSPE-PEG2000) and were characterized by determining the encapsulation percentage as a function of lipid concentration. Among the different formulations,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cisplatin; Liposomes; Encapsulation; Cytotoxicity. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2007000800017 |
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| Santos,Carlos Henrique Barbosa; Martins,Antonio Baldo Geraldo; Rigobelo,Everlon Cid; Teixeira,Gustavo Henrique de Almeida. |
| Abstract The use of microorganisms capable of promoting plant growth has been accepted as an alternative to reducing the use of chemical fertilizers. The aim of this study was to evaluate the inoculation of plant growth promoting microorganisms in seedlings of fruit species, verifying the interaction of the inoculums with encapsulating agents such as clay and alginate. Microbial inoculums contained the following species: Azospirillum brasilense, Burkolderia cepacia, Bacillus thuringienses, Bacillus megaterium, Bacillus cereus,Bacillus subtilis, Tricoderma spp. and isolate 411. The fruit species evaluated were: Myrciaria cauliflora (DC.) O. Berg; Myrciaria glazioviana (Kiaersk.) G. Barros &Sobral; Myrciaria dubia (Kunth) Mc Vaugh; Eugenia brasiliensis... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Fruit plants; Development; Encapsulation; Plant-growth promoting agents. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452018000301001 |
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| Registros recuperados: 25 | |
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