Results 101 to 110 of about 105,820 (326)

Investigação dos processos de gelatinização e extrusão de amido de milho

Polímeros, 2000
Os processos de gelatinização e de extrusão de amido de milho foram estudados. Calorimetria diferencial de varredura e miscroscopia óptica foram utilizadas na determinação da temperatura de gelatinização, T(G), em função do grau de umidade.
Souza Roberta C. R., Andrade Cristina T.
doaj  

Boron affects the growth and ultrastructure of castor bean plants Boro afeta o crescimento e a ultra-estrutura da mamoneira

Scientia Agricola, 2008
The cultivation of oleaginous plants like the castor bean guarantees employment for agricultural families and can contribute in energy and chemical sectors, especially in the northeastern semi-arid regions of Brazil.
Denis Herisson da Silva, Monica Lanzoni Rossi, Antonio Enedi Boaretto, Neusa de Lima Nogueira, Takashi Muraoka   +4 more
doaj   +1 more source

Postsynthetic Modifications of Amide‐Enaminone‐Based [2]Rotaxanes for the Stereocontrolled Synthesis of Functionalized β‐Lactams

ChemistryEurope, EarlyView.
Novel amido‐enaminone threads efficiently template the formation of hydrogen‐bonded [2]rotaxanes and enable diverse postsynthetic modifications. Benzyl groups promote diastereoselective cyclizations to interlocked lactams while the enaminone motif allows stopper exchange while preserving the mechanical bond.
Syed S. Razi, Isabel M. Perez‐Artigao, Mateo Alajarin, Alberto Martinez‐Cuezva, Jose Berna   +4 more
wiley   +1 more source

Composição química de sementes de azevém em resposta ao retardamento da secagem e ao armazenamento Chemical composition of ryegrass seeds in response to drying delay and storage

Pesquisa Agropecuária Brasileira, 2002
O objetivo deste trabalho foi avaliar as alterações na composição química de sementes de azevém anual (Lolium multiflorum Lam.), cultivar Comum-RS, em resposta ao retardamento da secagem (0, 6, 12, 18, 24, 36 e 48 horas) e ao armazenamento (zero, quatro ...
Luiz Eichelberger, Manoel de Souza Maia, Silmar Teichert Peske, Dario Munt de Moraes   +3 more
doaj   +1 more source

X-ray structures of dinuclear copper(I) and polynuclear copper(II) complexes with the 2,4-bis(cyanamido)cyclobutane-1,3-dione dianion [PDF]

, 2006
From the 2,4-bis(cyanamido)cyclobutane-1,3-dione dianion (2,4-NCNsq2−), two copper complexes [Cu2(PPh3)4(PhCN)2(μ-2,4-NCNsq)] · PhCN (1) and [Cu(dien)(μ-2,4-NCNsq) · H2O]n (2) have been synthesized and characterized by IR and electronic absorption ...
Cortadellas, Olivier, Donnadieu, Bruno, Fabre, Paul-Louis, Galibert, Anne-Marie, Soula, Brigitte   +4 more
core   +2 more sources

Investigating di‐n‐Butylcalcium

ChemistryEurope, EarlyView.
A detailed synthetic, crystallographic, and spectroscopic investigation demonstrates that the hitherto elusive di‐n‐butylcalcium is accessible and stable at low temperature, and can be used for deprotometallation reactions. The synthesis and detailed characterization by NMR spectroscopy of di‐n‐butylcalcium are reported. The reaction of [Ca{N(SiMe3)2}2.
Gabriel Duneş, Matthieu Hédouin, Cléo Bastien, Samia Kahlal, Marie Cordier, William Erb, Florence Mongin, Jean‐Yves Saillard, Hassan Oulyadi, Yann Sarazin   +9 more
wiley   +1 more source

Teores de carboidratos em órgãos lenhosos do caquizeiro em clima tropical Carbohydrate content in persimmon tree woody organs in tropical climate

Revista Brasileira de Fruticultura, 2008
Nas fruteiras caducifólias, o metabolismo de carboidratos constitui-se no principal mecanismo que garante a sua sobrevivência no período de dormência, estando, também, relacionado ao seu potencial produtivo em safras subseqüentes. Conhecer a forma como a
Carlos Eduardo Corsato, João Alexio Scarpare Filho, Eleuza Clarete Junqueira de Sales   +2 more
doaj   +1 more source

Hydroxyethyl-starch use and PBM. a necessary update to the italian national guidelines [PDF]

, 2016
Hydroxyethyl-starch use and PBM a necessary update to the italian national ...
Biancofiore, Gianni, Liumbruno, Giancarlo M., VAGLIO, Stefania   +2 more
core   +1 more source

Connectivity Effects on the Kinetically Controlled Supramolecular Polymerization of Linear Scaffolds

ChemistryEurope, EarlyView.
The kinetically controlled supramolecular homo‐ and heteropolymerization of BDTs (1a and 1b) and BODIPYs (2a and 2b), endowed with amido‐ester flexible ethylene linkers, that prompt the formation of seven‐membered, intramolecularly H‐bonded pseudocycles retarding the supramolecular polymerization, is investigated experimentally showing a complex ...
Cristina Naranjo, Rafael Gómez, Gustavo Fernández, Luis Sánchez   +3 more
wiley   +1 more source

COMPONENTS OF CELL WALL, ENZYME ACTIVITY IN PEDICEL AND SUSCEPTIBILITY OF BANANAS TO FINGER DROP

Revista Brasileira de Fruticultura, 2016
A major problem in post-harvest handling of bananas is the individual detachment of the fruit from the hands. This study aimed to establishing the relationship between carbohydrate concentration and enzyme activity in the pedicel region of three ...
GLORIA ANNABELL COBEÑA RUIZ, LUIZ CARLOS CHAMHUM SALOMÃO, DALMO LOPES DE SIQUEIRA, SEBASTIÃO TAVARES DE REZENDE, LEILA CRISTINA ROSA DE LINS   +4 more
doaj   +1 more source