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Effects of ester fractions from leaf epicuticular waxes of Bauhinia rufa (Steud.) Bong. and Stryphnodendron adstringens (Mart.) Coville from cerrado on the aphid Rhopalosiphum maidis (Fitch.) Rev. Bras. Bot.
Bichuette,Maria Elina; Varanda,Elenici Mouro; Barosela,José Ricardo.
(Effects of ester fractions from leaf epicuticular waxes of Bauhinia rufa (Steud.) Bong. and Stryphnodendron adstringens (Mart.) Coville from the cerrado on the aphid Rhopalosiphum maidis (Fitch.)). Ester fractions were isolated from the leaf epicuticular waxes of Bauhinia rufa (Steud.) Bong. and Stryphnodendron adstringens (Mart.) Coville collected in the Cerrado de Emas (Pirassununga, SP, Brazil). The bioassays of toxicity and reproductive index were carried out with esters from these species and the aphid Rhopalosiphum maidis (Fitch.). It was observed that the ester fractions from Bauhinia rufa and Stryphnodendron adstringens had a negative effect on the survival of Rhopalosiphum maidis. The ester fraction from Stryphnodendron adstringens also had a...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Esters; Rhopalosiphum maidis; Bauhinia rufa; Stryphnodendron adstringens.
Ano: 1998 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84041998000100010
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Evaluation of the catalytic activity of lipases immobilized on chrysotile for esterification Anais da ABC (AABC)
Silva,Jane E. S.; Jesus,Paulo C..
In the present work, the ester synthesis in organic media catalyzed by lipases immobilized on chrysotile was studied. Lipases of different sources (Mucor javanicus, Pseudomonas cepacia, Rhizopus oryzae, Aspergillus niger and Candida rugosa) were immobilized on chrysotile, an inexpensive magnesium silicate, and used for esterification of hexanoic, octanoic and lauric acid with methanol, ethanol, 1-butanol and 1-octanol at 25ºC in hexane as solvent. The best results were obtained with Mucor javanicus lipase and lauric acid giving yields of 62-97% of ester.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Chrysotile; Lipases; Esters.
Ano: 2003 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652003000200003
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Host plant resistance to insects in sorghum: present status and need for future research Open Agri
Sharma, H.C..
Palavras-chave: Genes; Sorghum; Transgenics; Cytoplasm; Transgenic plants; Hybrids; Esters; Gene expression; Biochemical compounds; Phenotypes.
Ano: 2005 URL: http://agropedia.iitk.ac.in/openaccess/?q=node/3250
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Influence of different banana cultivars on volatile compounds during ripening in cold storage. Repositório Alice
FACUNDO, H. V. de V.; GARRUTI, D. dos S.; DIAS, C. T. dos S.; CORDENUNSI, B. R.; LAJOLO, F. M..
bitstream/item/89591/1/AA113006.pdf
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Baixa temperatura; Musa acuminata L; Tolerancia; Análise de componentes principais; Low temperature; Tolerance; Esters.
Ano: 2012 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/966031
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Influence of ethanol concentration, addition of spices extract, and level of sweetness on physico-chemical characteristics and sensory quality of apple vermouth BABT
Joshi,Vinod K.; Sandhu,Danwant K..
The composition of apple base wine was found to be suitable for conversion into vermouth. The spices extract contained more TSS, tannins, esters, volatile acid but lower titrable acid than apple base wine. To optimize and develop apple vermouth with different ethanol concentrations (12%, 15%, 18%), sugar content (4%, 8%) and spices extract (2.5% and 5.0%) was prepared and was evaluated. Significant differences in physico-chemical characteristics and sensory quality amongst the vermouths having different levels of alcohol, sugar and spices extract were noted. Generally, increasing ethanol content decreased titrable acidity, tannins, macroelements and colour units while micro-elements, viscosity and total esters were increased. Increased sugar level affected...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Apple; Vermouth; Ethanol spices extract; Sweetness; Esters; Quality; Base wine; Mineral; Sensory.
Ano: 2000 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132000000500015
Registros recuperados: 5
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