Results 21 to 30 of about 1,069 (177)

Influência do processamento por via úmida e tipos de secagem sobre a composição, físico química e química do café (Coffea arabica L). Influence of the wet processing and drying types on chemical and physicochemical composition of coffee (Coffea arabica L.)

Ciência e Agrotecnologia, 2009
O café (Coffea arabica L.) é um importante produto de exportação brasileira, por fazer parte do hábito alimentar da população de diversos países. Sua produção vem passando por transformações tecnológicas que têm como objetivo agregar valores qualitativos
Mariá Auxiliadora Santos, Sára Maria Chalfoun, Carlos José Pimenta   +2 more
doaj   +1 more source

Some Biochemical properties of polyphenoloxidase from spearmint (Mentha arvensis)

Brazilian Archives of Biology and Technology, 2009
Polyphenoloxidase (PPO; EC 1.14.18.1) extracted from Mentha arvensis leaves was isolated by (NH4)2SO4 precipitation and extensive dialysis. Its optimum pH and temperature varied with the substrate. The PPO showed activity with various diphenols.
Valdir Augusto Neves, Douglas Gatte Picchi, Maraiza Aparecida da Silva   +2 more
doaj   +1 more source

The Polyphenoloxidase of Pear Fruit [PDF]

Australian Journal of Biological Sciences, 1964
Following a study of the enzymic browning of apples (Wall,"r 1964) a similar study of pear polyphenoloxidase (PPO) was initiated.
openaire   +1 more source

Ativação de defesa em cacaueiro contra a murcha-de-verticílio por extratos naturais e acibenzolar-S-metil Activation of defence responses on cocoa against Verticillium wilt by natural extracts and acibenzolar-S-methyl

Pesquisa Agropecuária Brasileira, 2008
O objetivo deste trabalho foi avaliar o potencial de extratos fúngicos e vegetais na redução da murcha-de-verticílio do cacaueiro, as atividades da peroxidase e polifenoloxidase e o conteúdo de lignina.
Ricardo Borges Pereira, Mário Lúcio Vilela de Resende, Pedro Martins Ribeiro Júnior, Daniel Rufino Amaral, Gilvaine Ciavareli Lucas, Fábio Rossi Cavalcanti   +5 more
doaj   +1 more source

Peroxidase (POD) and polyphenoloxidase (PPO) in grape (Vitis vinifera L.) Peroxidase (POD) e polifenoloxidase (PPO) em uva (Vitis vinifera L.)

Ciência e Agrotecnologia, 2003
The enzimatic activity of peroxidase (POD) and polyphenoloxidase (PPO) extracted from three grape cultivars (Vitis vinifera L.), cultivated in Marialva city, state of Paraná, was evaluated in this study. The enzymatic extracts were prepared starting from
Estela de Pieri Troiani, Clariza Tomé Tropiani, Edmar Clemente   +2 more
doaj   +1 more source

Efeito da densidade populacional do pulgão-verde Schizaphis graminum (Rondani, 1852) (Hemiptera: Aphididae) na atividade enzimática em plantas de trigo Effect of the population density of the greenbug Schizaphis graminum (Rondani, 1852) (Hemiptera: Aphididae) on enzymatic activity on wheat plants

Ciência e Agrotecnologia, 2004
Verificou-se o efeito da densidade populacional do pulgão-verde Schizaphis graminum (RONDANI, 1852) em plantas de trigo (Triticum aestivum L.) na atividade das enzimas peroxidase e polifenoloxidase.
Flávia Batista Gomes, Custódio Donizete dos Santos, Jair Campos de Moraes, Marcio Marcos Goussain   +3 more
doaj   +1 more source

Polyamine treatments: an effective strategy to improve crop yield and fruit colour and to preserve quality of ‘Mollar de Elche’ pomegranate fruit during storage at chilling temperatures

Journal of the Science of Food and Agriculture, Volume 106, Issue 7, Page 4101-4112, May 2026.
Abstract BACKGROUND Climate change in Spain is altering the optimal conditions for producing high‐quality ‘Mollar de Elche’ pomegranate fruit, due to reduced colour development in husk and arils. In addition, the pomegranate requires storage above 7–10 °C, depending on cultivar, to preserve its quality because it is susceptible to chilling injury (CI ...
Jenifer Puente‐Moreno, Fernando Garrido‐Auñón, María E García‐Pastor, Fabián Guillén, Salvador Castillo, Daniel Valero, María Serrano   +6 more
wiley   +1 more source

AMAZON ACAI AND PINEAPPLE RESIDUES INDUCE THE ENZYME LACCASE IN Pleurotus ostreatus: APPLICATION TO BISPHENOL A BIOREMEDIATION [PDF]

Química Nova
Bisphenol A (BPA), an endocrine disruptor used in different commercial polymers, is a persistent pollutant commonly found in effluents. Conventional wastewater treatment processes have low chemical removal efficiency and are expensive.
Jhessica Cavalcante de Souza Golveia, Elaine Sousa Nunes, Thiago Souza Bulhões, Jerônimo Raimundo de Oliveira Neto, Luiz Carlos da Cunha, Luiza Cintra Campos, Mariângela Fontes Santiago, Fernando Schimidt   +7 more
doaj   +1 more source

Inducing defence enzymes in two rice (Oryza sativa) varieties by G. mosseae arbuscular mycorrhizal fungus Inducción de enzimas de defensa en dos variedades de arroz (Oryza sativa) por el hongo micorrízico arbuscular G. mosseae

Revista Colombiana de Biotecnología, 2006
Protecting plants against fundamentally radical pathogens is one of arbuscular mycorrhizal fungi's benefits. This work was aimed at comparing the effect of one such fungus (Glomus mosseae) on inducing a defensive response in two rice (Oryza sativa ...
Fernández Félix, Solórzano Ernestina, Peteira Belkis, Rodríguez Yakelín, Fernández Arais   +4 more
doaj   +2 more sources

Etude de l'influence de la « vinomaceration » sur la couleur et les activités polyphénoloxydasiques des jus de raisins rouges

OENO One, 1982
L'étude expérimentale, au laboratoire, de la « vinomacération » (macération, avant fermentation, des raisins rouges non foulés dans du vin chauffé à 50 °C) montre que ce traitement n'a que des effets limités sur la couleur et les activités ...
Jean-Claude Sapis, Robert Cordonnier, A. Dugal, Marie-José Biron   +3 more
doaj   +1 more source