Results 71 to 80 of about 105,820 (326)

Biodegradable films made from raw and acetylated cassava starch

Brazilian Archives of Biology and Technology, 2004
Studies were carried out to produce biodegradable films from cassava starch. Two alternatives were investigated. In the first, films were obtained by starch gelatinization followed by thermopressing and glycerol was used at different concentrations as a ...
Fábio D. S. Larotonda, Kátia N. Matsui, Valdir Soldi, João B. Laurindo   +3 more
doaj   +1 more source

Alkali-metal-mediated zincation (AMMZn) meets N-heterocyclic carbene (NHC) chemistry : Zn–H exchange reactions and structural authentication of a dinuclear Au(I) complex with a NHC anion [PDF]

, 2013
Merging two evolving areas in synthesis, namely cooperative bimetallics and N-heterocyclic carbenes (NHCs), this study reports the isolation of the first intermediates of alkali-metal-mediated zincation (AMMZn) of a free NHC and a Zn–NHC complex using ...
Aldeco-Perez, Andrikopoulos, Arduengo, III, Arduengo, III, Armstrong, Armstrong, Armstrong, Armstrong, Arnold, Arnold, Arnold, Back, Baillie, Bantu, Bourissou, Clegg, Clegg, Clegg, Conway, Crabtree, de Frémont, Diez-Gonzalez, Flower, Furuyama, Ghadwal, Gomez-Suarez, Guisado-Barrios, Haag, Hashmi, Hashmi, Hashmi, Hashmi, Hashmi, Hashmi, Jimenez-Nunez, Kobayashi, Kronig, Linton, Masuda, Mendoza-Espinosa, Mulvey, Mulvey, Mulvey, Mulvey, Musgrave, Nobuto, Raubnheimer, Rudolph, Rudolph, Schuster, Uchiyama, Wang, Wang, Wang, Wang, Westerhausen   +55 more
core   +1 more source

Pós-colheita do maracujá amarelo com revestimentos a base de amido da entrecasca de mandioca

Revista Verde de Agroecologia e Desenvolvimento Sustentável, 2019
O maracujá amarelo é fruto climatérico que apresenta alta perecibilidade quando armazenado em temperatura ambiente. Assim, objetivou-se avaliar os efeitos do revestimento do amido da entrecasca de mandioca na conservação pós-colheita de maracujás ...
Alana Caroline Garcia da Silva, Natácia da Silva e Silva, Fagner Freires de Sousa   +2 more
doaj   +1 more source

Heuristics-Guided Exploration of Reaction Mechanisms

, 2015
For the investigation of chemical reaction networks, the efficient and accurate determination of all relevant intermediates and elementary reactions is mandatory.
Bergeler, Maike, Proppe, Jonny, Reiher, Markus, Simm, Gregor N.   +3 more
core   +3 more sources

A Mononuclear Nonheme Iron(IV)-Amido Complex Relevant for the Compound II Chemistry of Cytochrome P450.

Journal of the American Chemical Society, 2018
A mononuclear nonheme iron(IV)-amido complex bearing a tetraamido macrocyclic ligand, [(TAML)FeIV(NHTs)]- (1), was synthesized via a hydrogen atom (H atom) abstraction reaction of an iron(V)-imido complex, [(TAML)FeV(NTs)]- (2), and fully characterized ...
Xiaoyan Lu, Xiao‐Xi Li, M. Seo, Yong‐Min Lee, M. Clémancey, P. Maldivi, J. Latour, R. Sarangi, S. Fukuzumi, W. Nam   +9 more
semanticscholar   +1 more source

Metal-Ligand Cooperation of Ir(III) Catalysts Bearing a β-Protic Pyrazole Chelate in Carboxylative Cyclization of Propargylic Amine with CO₂. [PDF]

Chemistry
Proton‐responsive C–N chelating Cp*Ir complexes derived from 3,5‐diphenylpyrazole catalyze the carboxylative cyclization of propargylic amines with CO2. The cyclic urethane product is smoothly released via protonolysis of the alkenyl‐Ir species with the aid of the β‐protic NH unit on pyrazole.
Kayaki Y, Tsuda Y, Kuwata S.
europepmc   +2 more sources

Biaryl Phosphine Based Pd(II) Amido Complexes: The Effect of Ligand Structure on Reductive Elimination

Journal of the American Chemical Society, 2016
Kinetic studies conducted under both catalytic and stoichiometric conditions were employed to investigate the reductive elimination of RuPhos (2-dicyclohexylphosphino-2′,6′-diisopropoxybiphenyl) based palladium amido complexes. These complexes were found
P. L. Arrechea, S. Buchwald
semanticscholar   +1 more source

Granules morphology and rheological behavior of green banana (Musa cavendishii) and corn (Zea mays) starch gels Morfologia dos grânulos e comportamento reológico dos géis de amido de banana verde (Musa cavendishii) e milho (Zea mays)

Ciência e Agrotecnologia, 2007
In this work, it was used starch obtained from green banana (Musa cavendishii) and commercial corn (Zea mays) starch in order to compare the granule morphology and the rheological behavior of these gel-starches.
Dayane Rosalyn Izidoro, Bogdan Demczuk Junior, Charles Windson Isidoro Haminiuk, Maria Rita Sierakowski, Renato João Sossela de Freitas, Agnes de Paula Scheer   +5 more
doaj   +1 more source

Teores de carboidratos em estacas lenhosas de mirtileiro

Revista Brasileira de Fruticultura, 2012
O objetivo do trabalho foi avaliar as alterações no teor de carboidratos em estacas lenhosas de mirtileiro das cultivares Delite, Powder Blue e Seleção 19.
Rérinton Joabél Pires de Oliveira, Valmor João Bianchi, Rogério Ferreira Aires, Ângela Diniz Campos   +3 more
doaj   +1 more source

Amido a partir de bambu [PDF]

Bragantia, 1984
Em colmos de bambu da espécie tida como Guadua flabellata, determinaram-se os teores de amido e das frações fibrosa, parenquimatosa e solúvel em água. O comprimento e o diâmetro dos colmos processados foram também determinados. Os resultados mostraram que o teor médio de amido extraído foi 8,53% (base seca), representando cerca de 59% da fração solúvel
openaire   +4 more sources