Base de dados : MEDLINE
Pesquisa : B01.650.940.800.575.912.250.401.611 [Categoria DeCS]
Referências encontradas : 33 [refinar]
Mostrando: 1 .. 10   no formato [Detalhado]

página 1 de 4 ir para página            

  1 / 33 MEDLINE  
              next record last record
seleciona
para imprimir
Fotocópia
PubMed Central Texto completo
Texto completo
[PMID]:27488183
[Au] Autor:Thaptimthong T; Kasemsuk T; Sibmooh N; Unchern S
[Ad] Endereço:Department of Pharmacology, Faculty of Science, Mahidol University, Rama VI Road, Bangkok, 10400, Thailand.
[Ti] Título:Platelet inhibitory effects of juices from Pachyrhizus erosus L. root and Psidium guajava L. fruit: a randomized controlled trial in healthy volunteers.
[So] Source:BMC Complement Altern Med;16:269, 2016 Aug 03.
[Is] ISSN:1472-6882
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:BACKGROUND: The purpose of this study is to investigate cardiovascular benefits of juices obtained from two commonly consumed fruits in Thailand, Pachyrhizus erosus, L. (yam bean) and Psidium guajava, L. (guava), by examining their acute cardiovascular effects in healthy volunteers. Possible involvements of the dietary nitrate on their effects were investigated as well. METHOD: Thirty healthy volunteers were randomly divided into three groups of 10 subjects per group and each group was allocated to drink 500 ml of freshly prepared yam bean root juice, guava fruit juice, or water. Systemic nitrate and nitrite concentrations, heart rate, systolic and diastolic blood pressure, serum K(+) concentrations, ex vivo platelet aggregation, and plasma cGMP concentrations were monitored at the baseline and at various time points after the intake of juices or water. Data were compared by repeated measures ANOVA. RESULTS: Following the ingestion of both yam bean root juice and guava fruit juice, collagen-induced but not ADP-induced platelet aggregation was attenuated. Ingestion of yam bean root juice increased systemic nitrate and nitrite concentrations whereby elevated nitrite concentrations correlated with the extent of inhibiting collagen-induced platelet aggregation. In addition, positive correlation between systemic nitrite and plasma cGMP concentrations and negative correlation between plasma cGMP concentrations and the extent of collagen-induced platelet aggregation were revealed. Nevertheless, yam bean root juice reduced only diastolic blood pressure while guava fruit juice reduced heart rate, systolic and diastolic blood pressure. CONCLUSION: The present study has illustrated, for the first time, acute inhibitory effects of yam bean root juice and guava fruit juice on ex vivo collagen-induced platelet aggregation in healthy subjects. Dietary nitrate was shown to underlie the effect of yam bean root juice but not that of guava fruit juice. Following yam bean root juice ingestion, systemic nitrate apparently converts to nitrite and further to NO which may attenuate platelet responses to collagen stimulation. Cardiovascular benefits of juices from yam bean root and guava fruit are noteworthy in term of the cardiovascular health-promoting approach. TRIAL REGISTRATION: Randomized controlled trial TCTR20150228001 .
[Mh] Termos MeSH primário: Pachyrhizus/química
Extratos Vegetais/farmacologia
Agregação Plaquetária/efeitos dos fármacos
Psidium/química
[Mh] Termos MeSH secundário: Adulto
Pressão Sanguínea/efeitos dos fármacos
Feminino
Frutas/química
Frequência Cardíaca/efeitos dos fármacos
Seres Humanos
Masculino
Nitritos/análise
Extratos Vegetais/química
Raízes de Plantas/química
Adulto Jovem
[Pt] Tipo de publicação:JOURNAL ARTICLE; RANDOMIZED CONTROLLED TRIAL
[Nm] Nome de substância:
0 (Nitrites); 0 (Plant Extracts)
[Em] Mês de entrada:1701
[Cu] Atualização por classe:170925
[Lr] Data última revisão:
170925
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:160805
[St] Status:MEDLINE
[do] DOI:10.1186/s12906-016-1255-1


  2 / 33 MEDLINE  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
Texto completo
[PMID]:26428131
[Au] Autor:López OV; Versino F; Villar MA; García MA
[Ad] Endereço:Planta Piloto de Ingeniería Química, PLAPIQUI (UNS-CONICET), Departamento de Ingeniería Química, UNS, Camino La Carrindanga km 7, 8000 Bahía Blanca, Argentina.
[Ti] Título:Agro-industrial residue from starch extraction of Pachyrhizus ahipa as filler of thermoplastic corn starch films.
[So] Source:Carbohydr Polym;134:324-32, 2015 Dec 10.
[Is] ISSN:1879-1344
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Biocomposites films based on thermoplastic corn starch (TPS) containing 0.5% w/w fibrous residue from Pachyrhizus ahipa starch extraction (PASR) were obtained by melt-mixing and compression molding. PASR is mainly constituted by remaining cell walls and natural fibers, revealed by Scanning Electron Microscopy (SEM). Chemical composition of the residue indicated that fiber and starch were the principal components. Biocomposites thermo-stability was determined by Thermo-Gravimetric Analysis. A continuous PASR-TPS interface was observed by SEM, as a result of a good adhesion of the fibrous residue to starch matrix. Likewise, films containing PASR presented fewer superficial cracks than TPS ones, whereas their fracture surfaces were more irregular. Besides, the presence of PASR increased starch films roughness, due to fibers agglomerates. Films reinforced with PASR showed significantly lower water vapor permeability (WVP). In addition, PARS filler increased maximum tensile strength and Young's modulus of TPS films, thus leading to more resistant starch matrixes.
[Mh] Termos MeSH primário: Pachyrhizus/química
Amido/química
Zea mays/química
[Mh] Termos MeSH secundário: Permeabilidade
Amido/ultraestrutura
Vapor/análise
Resistência à Tração
Termogravimetria
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Nm] Nome de substância:
0 (Steam); 9005-25-8 (Starch)
[Em] Mês de entrada:1607
[Cu] Atualização por classe:151002
[Lr] Data última revisão:
151002
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:151003
[St] Status:MEDLINE


  3 / 33 MEDLINE  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
Texto completo
[PMID]:25525107
[Au] Autor:Basukriadi A; Wilkins RM
[Ad] Endereço:Department of Biology, Faculty of Mathematics and Natural Sciences, Universitas Indonesia, Depok 16424, Indonesia basukriadi@yahoo.com.
[Ti] Título:Oviposition deterrent activities of Pachyrhizus erosus seed extract and other natural products on Plutella xylostella (Lepidoptera: Plutellidae).
[So] Source:J Insect Sci;14, 2014.
[Is] ISSN:1536-2442
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:An extract of a rotenone-containing plant yam bean, Pachyrhizus erosus (L.) Urban, seeds was tested against the diamondback moth, Plutella xylostella (L.) in a greenhouse to determine its potential as an oviposition deterrent and compared with coumarin and rutin, known as diamondback moth oviposition deterrent compounds, rotenone, and an extract of Peruvian cube root, at a concentration of 0.5% (w/v). Oviposition deterrent index (ODI) was used to determine effects of extracts or compounds in inhibiting oviposition of diamondback moth. Coumarin showed a stronger deterrent effect than the yam bean seed extract with a higher ODI value. On the contrary, rotenone, rutin, and the cube root extract, containing 6.7% (w/w) of rotenone, showed no significant deterrent effects having low or negative ODI values, suggesting that the deterrent effect of the yam bean seed extract is not due to rotenone content of the yam bean seeds. The extract of yam bean seed and coumarin partially deterred the moth from laying eggs on treated leaves in a concentration-dependent manner. The effective concentration for 50% deterrency of coumarin and the yam bean seed extract were 0.11 and 0.83% (w/v), respectively. However, the yam bean seed extract showed a residual deterrent effect on the moth even at 3 d after the treatment and is probably because of its low volatile nature. A long-term deterrency of the yam bean seed extract is an advantage over coumarins. Both the yam bean seed extract and coumarin deterred diamondback moth from laying eggs in total darkness, indicating their nonvisual deterrent effect. This made the extract an effective deterrence to diamondback moth in light and in darkness. To conclude, this study revealed the potential of the crude extract of the yam bean seed to prevent diamondback moth from ovipositing on its plant host.
[Mh] Termos MeSH primário: Brassica/parasitologia
Repelentes de Insetos/farmacologia
Mariposas/efeitos dos fármacos
Oviposição/efeitos dos fármacos
Extratos Vegetais/farmacologia
[Mh] Termos MeSH secundário: Animais
Cumarínicos/farmacologia
Derris/química
Feminino
Repelentes de Insetos/química
Pachyrhizus/química
Extratos Vegetais/química
Folhas de Planta
Rotenona/farmacologia
Rutina/farmacologia
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Coumarins); 0 (Insect Repellents); 0 (Plant Extracts); 03L9OT429T (Rotenone); 5G06TVY3R7 (Rutin); A4VZ22K1WT (coumarin)
[Em] Mês de entrada:1508
[Cu] Atualização por classe:141219
[Lr] Data última revisão:
141219
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:141220
[St] Status:MEDLINE


  4 / 33 MEDLINE  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
Texto completo
[PMID]:25055205
[Au] Autor:Estrella-Parra EA; Gomez-Verjan JC; González-Sánchez I; Vázquez-Martínez ER; Vergara-Castañeda E; Cerbón MA; Alavez-Solano D; Reyes-Chilpa R
[Ad] Endereço:a Departamento de Productos Naturales , Instituto de Química, Universidad Nacional Autónoma de México , Mexico City , D.F. Mexico.
[Ti] Título:Rotenone isolated from Pachyrhizus erosus displays cytotoxicity and genotoxicity in K562 cells.
[So] Source:Nat Prod Res;28(20):1780-5, 2014.
[Is] ISSN:1478-6427
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Pachyrhizus erosus (Fabaceae) is a herb commonly known as 'yam bean', which has been cultivated in México since pre-Columbian times for its edible tubers. The seeds are also known for their acaricidal and insecticidal properties due to rotenone and other isoflavonoid contents. Rotenone has exhibited cytotoxic activity against several human tumour cell lines; however, its mechanism of action is still not fully understood. In this study, we determined the cytotoxicity of rotenone isolated from P. erosus seeds on K562 human leukaemia cells. Rotenone exhibited significant cytotoxic activity (IC50 = 13.05 µM), as determined by the MTT assay. Three other isolated isoflavonoids were not cytotoxic. Rotenone genotoxicity was detected using the comet assay. Rotenone induced cell death, and caspase-3 activation as indicated by TUNEL assay, and immunocytofluorescence. Plasmid nicking assay indicated that rotenone does not interact directly with DNA.
[Mh] Termos MeSH primário: Pachyrhizus/química
Rotenona/farmacologia
[Mh] Termos MeSH secundário: Antineoplásicos Fitogênicos/isolamento & purificação
Caspase 3/metabolismo
Ensaio Cometa
Seres Humanos
Marcação In Situ das Extremidades Cortadas
Células K562
Estrutura Molecular
Rotenona/isolamento & purificação
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Nm] Nome de substância:
0 (Antineoplastic Agents, Phytogenic); 03L9OT429T (Rotenone); EC 3.4.22.- (CASP3 protein, human); EC 3.4.22.- (Caspase 3)
[Em] Mês de entrada:1504
[Cu] Atualização por classe:140910
[Lr] Data última revisão:
140910
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:140724
[St] Status:MEDLINE
[do] DOI:10.1080/14786419.2014.939081


  5 / 33 MEDLINE  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
Texto completo
[PMID]:25029173
[Au] Autor:Guo JL; Cheng YL; Qiu Y; Shen CH; Yi B; Peng C
[Ad] Endereço:Key Laboratory of Standardization of Chinese Medicine, Ministry of Education, Chengdu University of Traditional Chinese Medicine, Chengdu, China.
[Ti] Título:Purification and characterization of a novel type i ribosome inactivating protein, pachyerosin, from Pachyrhizus erosus seeds, and preparation of its immunotoxin against human hepatoma cells.
[So] Source:Planta Med;80(11):896-901, 2014 Jul.
[Is] ISSN:1439-0221
[Cp] País de publicação:Germany
[La] Idioma:eng
[Ab] Resumo:Pachyrhizus erosus seeds have a high protein content and are used in China due to their cytotoxic effect. Here we report the biological and pharmacological activity of the protein extracts from P. erosus seeds. A novel ribosome-inactivating protein, pachyerosin, from P. erosus seeds was successively purified to homogeneity using ammonium sulfate precipitation, DEAE-sepharose FF, and Sephacryl S-200. Pachyerosin showed to be a type I ribosome-inactivating protein with a molecular mass of 29 kDa and an isoelectric point of 9.19. It strongly inhibited protein synthesis of rabbit reticulocyte lysate with an IC50 of 0.37 ng/mL and showed N-glycosidase activity on rat liver ribosomes with an EC50 of 85.9 pM. The N-terminal 27 amino acids of pachyerosin revealed a 60.71% sequence identity with abrin A from the seeds of Abrus precatorius. With the aim of targeting the delivery of pachyerosin, immunotoxin was prepared by conjugating pachyerosin with anti-human AFP monoclonal antibodies SM0736. The immunotoxin pachyerosin-SM0736 efficiently inhibited the growth of the human hepatoma cell line HuH-7 with an IC50 of 0.050 ± 0.004 nM, 2360 times lower than that of pachyerosin and 430 times lower than that of the immunotoxin against human gastric cancer cell line SGC7901. These results imply that pachyerosin may be used as a new promising anticancer agent.
[Mh] Termos MeSH primário: Antineoplásicos Fitogênicos/farmacologia
Carcinoma Hepatocelular/tratamento farmacológico
Neoplasias Hepáticas/tratamento farmacológico
Pachyrhizus/química
Extratos Vegetais/farmacologia
Proteínas Inativadoras de Ribossomos Tipo 1/farmacologia
[Mh] Termos MeSH secundário: Sequência de Aminoácidos
Animais
Anticorpos Monoclonais/isolamento & purificação
Anticorpos Monoclonais/farmacologia
Antineoplásicos Fitogênicos/isolamento & purificação
Seres Humanos
Imunotoxinas/isolamento & purificação
Imunotoxinas/farmacologia
Dados de Sequência Molecular
Peso Molecular
Extratos Vegetais/isolamento & purificação
Proteínas de Plantas/isolamento & purificação
Proteínas de Plantas/farmacologia
Plantas Medicinais
Biossíntese de Proteínas/efeitos dos fármacos
Coelhos
Proteínas Inativadoras de Ribossomos Tipo 1/isolamento & purificação
Sementes/química
Alinhamento de Sequência
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Nm] Nome de substância:
0 (Antibodies, Monoclonal); 0 (Antineoplastic Agents, Phytogenic); 0 (Immunotoxins); 0 (Plant Extracts); 0 (Plant Proteins); 0 (Ribosome Inactivating Proteins, Type 1)
[Em] Mês de entrada:1505
[Cu] Atualização por classe:140813
[Lr] Data última revisão:
140813
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:140717
[St] Status:MEDLINE
[do] DOI:10.1055/s-0034-1382836


  6 / 33 MEDLINE  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
[PMID]:24354192
[Au] Autor:Leuner O; Havlik J; Budesinsky M; Vrkoslav V; Chu J; Bradshaw TD; Hummelova J; Miksatkova P; Lapcik O; Valterova I; Kokoska L
[Ad] Endereço:Department of Crop Sciences and Agroforestry, Faculty of Tropical Agri Sciences, Czech University of Life Sciences Prague, Kamycka 129, Prague 6, 165 21, Czech Republic.
[Ti] Título:Cytotoxic constituents of Pachyrhizus tuberosus from Peruvian amazon.
[So] Source:Nat Prod Commun;8(10):1423-6, 2013 Oct.
[Is] ISSN:1934-578X
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Investigations into the chemical constituents of the seeds of the neglected tuber crop Pachyrhizus tuberosus (Leguminosae) resulted in the isolation of seven components: five rotenoids [12a-hydroxyerosone (1), 12a-hydroxydolineone (2), erosone (3), 12a-hydroxyrotenone (4) and rotenone (6)], a phenylfuranocoumarin [pachyrrhizine (5)] and an isoflavanone [neotenone (7)]. The compounds were isolated using several chromatography techniques and characterized and verified by NMR and HPLC/MS. The MTT assay was used to examine the selective cytotoxic effects of the methanolic P. tuberosus extract and isolated compounds in two human cancer cell lines [breast (MCF-7) and colorectal (HCT-116)] and in non-transformed human fibroblasts (MRC-5); IC50 values were calculated. The methanolic P. tuberosus extract displayed respectable cytotoxic effects against HCT-116 and MCF-7 cells with IC50 values of 7.3 and 6.3 microg/mL, respectively. Of the compounds, 6 exacted greatest cytotoxicity and selectivity towards the cancer cell lines tested, yielding IC50 values of 0.3 microg/mL against both MCF-7 and HCT-116 cells, and a 6-fold reduced activity against MRC-5 fibroblasts. Compound 4 also demonstrated cytotoxicity against MCF-7 and HCT-116 (1.1 and 1.8 microg/mL, respectively), and reduced cytotoxicity towards MRC-5 cells (7.5 mirog/mL). The results revealed from the in vitro cytotoxic MTT assay are worthy of further antitumor investigation.
[Mh] Termos MeSH primário: Antineoplásicos Fitogênicos/isolamento & purificação
Pachyrhizus/química
Rotenona/análogos & derivados
Rotenona/isolamento & purificação
[Mh] Termos MeSH secundário: Antineoplásicos Fitogênicos/química
Ensaios de Seleção de Medicamentos Antitumorais
Células HCT116
Seres Humanos
Células MCF-7
Estrutura Molecular
Rotenona/química
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Nm] Nome de substância:
0 (Antineoplastic Agents, Phytogenic); 0 (erosone); 03L9OT429T (Rotenone)
[Em] Mês de entrada:1402
[Cu] Atualização por classe:131220
[Lr] Data última revisão:
131220
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:131221
[St] Status:MEDLINE


  7 / 33 MEDLINE  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
Texto completo
[PMID]:24209316
[Au] Autor:Lautié E; Rozet E; Hubert P; Vandelaer N; Billard F; Felde TZ; Grüneberg WJ; Quetin-Leclercq J
[Ad] Endereço:Laboratoire de Pharmacognosie, LDRI, Avenue E. Mounier, 72 - B1 7203 Université catholique de Louvain, 1200 Brussels, Belgium. Electronic address: emmanuelle.lautie@uclouvain.be.
[Ti] Título:Fast method for the simultaneous quantification of toxic polyphenols applied to the selection of genotypes of yam bean (Pachyrhizus sp.) seeds.
[So] Source:Talanta;117:94-101, 2013 Dec 15.
[Is] ISSN:1873-3573
[Cp] País de publicação:Netherlands
[La] Idioma:eng
[Ab] Resumo:The purpose of the research was to develop and validate a rapid quantification method able to screen many samples of yam bean seeds to determine the content of two toxic polyphenols, namely pachyrrhizine and rotenone. The analytical procedure described is based on the use of an internal standard (dihydrorotenone) and is divided in three steps: microwave assisted extraction, purification by solid phase extraction and assay by ultra high performance liquid chromatography (UHPLC). Each step was included in the validation protocol and the accuracy profiles methodology was used to fully validate the method. The method was fully validated between 0.25 mg and 5 mg pachyrrhizin per gram of seeds and between 0.58 mg/g and 4 mg/g for rotenone. More than one hundred samples from different accessions, locations of growth and harvest dates were screened. Pachyrrhizine concentrations ranged from 3.29 mg/g to lower than 0.25 mg/g while rotenone concentrations ranged from 3.53 mg/g to lower than 0.58 mg/g. This screening along with principal component analysis (PCA) and discriminant analysis (DA) analyses allowed the selection of the more interesting genotypes in terms of low concentrations of these two toxic polyphenols.
[Mh] Termos MeSH primário: Pachyrhizus/química
Polifenóis/análise
Rotenona/análise
Sementes/química
[Mh] Termos MeSH secundário: Cromatografia Líquida de Alta Pressão/métodos
Análise Discriminante
Genótipo
Limite de Detecção
Micro-Ondas
Pachyrhizus/genética
Análise de Componente Principal
Padrões de Referência
Rotenona/análogos & derivados
Sementes/genética
Extração em Fase Sólida
Fatores de Tempo
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Nm] Nome de substância:
0 (Polyphenols); 03L9OT429T (Rotenone); 538CX0LPPO (1',2'-dihydrorotenone)
[Em] Mês de entrada:1406
[Cu] Atualização por classe:161125
[Lr] Data última revisão:
161125
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:131112
[St] Status:MEDLINE


  8 / 33 MEDLINE  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
Texto completo
[PMID]:24175585
[Au] Autor:Catteau L; Lautié E; Koné O; Coppée M; Hell K; Pomalegni CB; Quetin-Leclercq J
[Ad] Endereço:Laboratoire de Pharmacognosie, LDRI, Av. E. Mounier 72, B.P. 7203, Université Catholique de Louvain , 1200 Brussels, Belgium.
[Ti] Título:Degradation of rotenone in yam bean seeds ( Pachyrhizus sp.) through food processing.
[So] Source:J Agric Food Chem;61(46):11173-9, 2013 Nov 20.
[Is] ISSN:1520-5118
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:The purpose of this research is to screen different processes that could potentially decrease or even eliminate rotenone, a toxic isoflavonoid, from Pachyrhizus seeds. Yam bean seeds have very interesting nutritional characteristics, especially their high protein and lipid contents, and could potentially increase food security in under-nourished populations. However, they contain rotenone, a natural molecule previously used as an insecticide inhibiting the respiratory mitochondrial chain. It was also proven to be toxic to mammals as chronic exposure leads to the development of Parkinson-like symptoms in rats. As the thermosensitivity of rotenone had been reported, this study tested different processes (drying, roasting, boiling, frying, alcohol extraction), tegument removal, and traditional Beninese culinary recipes. Rotenone was then quantified in end-products by a validated method, associating microwave extraction, solid phase extraction (SPE), and HPLC-UV. With these processes a rotenone removal of up to 80% was obtained. The most effective methods were the drying and roasting of the seeds and the maceration of their flour in local alcohol. Rotenone degradation and elimination were confirmed by cytotoxic assays, effectively inducing a decrease in sample toxicity.
[Mh] Termos MeSH primário: Manipulação de Alimentos/métodos
Pachyrhizus/química
Rotenona/química
[Mh] Termos MeSH secundário: Cromatografia Líquida de Alta Pressão
Farinha/análise
Sementes/química
[Pt] Tipo de publicação:EVALUATION STUDIES; JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Nm] Nome de substância:
03L9OT429T (Rotenone)
[Em] Mês de entrada:1406
[Cu] Atualização por classe:131122
[Lr] Data última revisão:
131122
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:131102
[St] Status:MEDLINE
[do] DOI:10.1021/jf402584k


  9 / 33 MEDLINE  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
Texto completo SciELO Brasil
[PMID]:23828369
[Au] Autor:Mussury RM; Scalon SP; Silva MA; Silva TF; Gomes H; Gassi R
[Ad] Endereço:Universidade Federal da Grande Dourados, Dourados, MS, Brasil.
[Ti] Título:Postharvest conservation of the tuberous roots of Pachyrhizus Ahipa (Wedd) Parodi.
[So] Source:An Acad Bras Cienc;85(2):761-8, 2013 Apr-Jun.
[Is] ISSN:1678-2690
[Cp] País de publicação:Brazil
[La] Idioma:eng
[Ab] Resumo:This paper aimed to evaluate the effects of storage periods on the conservation of Pachyrhizus ahipa roots at different temperatures and packaging materials. The roots were harvested, washed, packed in PVC, plastic bags, without wrappings (control) and stored in polystyrene trays in refrigerators, or cold chambers, or at room temperature. Total titratable acidity (TTA), total soluble solids (TSS), pH, as well as their ash, lipid, total carbohydrate and protein (dry basis) contents were analyzed. The lowest loss of root fresh weight was observed in the cold chamber and plastic bags. The TTA remained higher among roots stored in the cold chamber and in PVC packaging. The lowest TSS contents were observed for roots stored in the cold chamber, and these did not vary among the packing materials. The average carbohydrate content percentage for all treatments was 84.9%. The percentage of lipids was highest in roots stored at room temperature while protein and ash contents were highest in roots under refrigeration. The best storage conditions for roots are plastic bags packaging in a cold chamber, with the roots retaining appropriate quality for commercialization for up to 30 days.
[Mh] Termos MeSH primário: Temperatura Baixa
Embalagem de Alimentos/métodos
Armazenamento de Alimentos/métodos
Pachyrhizus/química
Raízes de Plantas/química
[Mh] Termos MeSH secundário: Valor Nutritivo
Fatores de Tempo
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Em] Mês de entrada:1311
[Cu] Atualização por classe:130705
[Lr] Data última revisão:
130705
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:130706
[St] Status:MEDLINE


  10 / 33 MEDLINE  
              first record previous record
seleciona
para imprimir
Fotocópia
Texto completo
[PMID]:23341347
[Au] Autor:Lautié E; Rasse C; Rozet E; Mourgues C; Vanhelleputte JP; Quetin-Leclercq J
[Ad] Endereço:Laboratoire de Pharmacognosie, LDRI, Université Catholique de Louvain, Brussels, Belgium. emmanuelle.lautie@uclouvain.be
[Ti] Título:Fast microwave-assisted extraction of rotenone for its quantification in seeds of yam bean (Pachyrhizus sp.).
[So] Source:J Sep Sci;36(4):758-63, 2013 Feb.
[Is] ISSN:1615-9314
[Cp] País de publicação:Germany
[La] Idioma:eng
[Ab] Resumo:The aim of this study was to find if fast microwave-assisted extraction could be an alternative to the conventional Soxhlet extraction for the quantification of rotenone in yam bean seeds by SPE and HPLC-UV. For this purpose, an experimental design was used to determine the optimal conditions of the microwave extraction. Then the values of the quantification on three accessions from two different species of yam bean seeds were compared using the two different kinds of extraction. A microwave extraction of 11 min at 55°C using methanol/dichloromethane (50:50) allowed rotenone extraction either equivalently or more efficiently than the 8-h-Soxhlet extraction method and was less sensitive to moisture content. The selectivity, precision, trueness, accuracy, and limit of quantification of the method with microwave extraction were also demonstrated.
[Mh] Termos MeSH primário: Fracionamento Químico/métodos
Cromatografia Líquida de Alta Pressão/métodos
Pachyrhizus/química
Extratos Vegetais/análise
Extratos Vegetais/isolamento & purificação
Rotenona/análise
Rotenona/isolamento & purificação
[Mh] Termos MeSH secundário: Fracionamento Químico/instrumentação
Cromatografia Líquida de Alta Pressão/instrumentação
Micro-Ondas
Sementes/química
[Pt] Tipo de publicação:EVALUATION STUDIES; JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Nm] Nome de substância:
0 (Plant Extracts); 03L9OT429T (Rotenone)
[Em] Mês de entrada:1307
[Cu] Atualização por classe:131121
[Lr] Data última revisão:
131121
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:130124
[St] Status:MEDLINE
[do] DOI:10.1002/jssc.201200347



página 1 de 4 ir para página            
   


Refinar a pesquisa
  Base de dados : MEDLINE Formulário avançado   

    Pesquisar no campo  
1  
2
3
 
           



Search engine: iAH v2.6 powered by WWWISIS

BIREME/OPAS/OMS - Centro Latino-Americano e do Caribe de Informação em Ciências da Saúde