Recovery of biotreatment supports as catalysts in ciclohexene oxidation

EUROPACAT IX - Catalysis for a Sustainable WorldA biosorption system for the removal of hexavalent chromium from contaminated effiuents that allows the reutilization of the recovered supports as catalysts is proposed. The system consists of Arthrobacter viscosus bacterium supported on NaY zeolite. After the treatment of the effiuents, the metal-zeolite can be used in oxidation reactions. This work reports the optimized biotreatement conditions that lead to Cr-loaded in Na Y zeolite, which was tested as catalysts in the liquid-phase oxidation of cyclohexene. A comparison is made with a Cr-NaY zeolite prepared by the usual ion-exchange method.info:eu-repo/semantics/publishedVersio

Development of Coleomegilla maculata De Geer (Coleoptera: coccinellidae) with prey and artificial diet.

Coleomegilla maculata De Geer (Coleoptera: Coccinellidae) is an important predator and has the potential to be used as a biological control agent of insect pests of maize (Zea mays L.) and sorghum [Sorghum bicolor (L.) Moench]. This study aimed to evaluate the development of C. maculata larvae fed eggs Anagasta kuehniella (Zeller) (Lepidoptera: Pyralidae) alone or associated with artificial diet, eggs of Spodoptera frugiperda (J. E. Smith) (Lepidoptera: Noctuidae) and nymphs of Schizaphis graminum (Rondani) (Hemiptera: Aphididae). The experiment was conducted in a complete randomized design with four replications, each with 10 larvae of C. maculata in an acclimatized room (25 ± 1 ºC, 70 ± 10% RH and 12 hours photophase). The duration of the stages of C. maculata was similar in all treatments, except for one that used nymphs of S. graminum, resulting in a shorter period for the larval stage. The viability of larval, prepupal and pupal stages and larval to adult C. maculata was high and similar in all treatments. No effect of diets on the weight of C. maculata adults occurred, except for the heavier insects fed on eggs of A. kuehniella, whose males and females weighed 9.8 ± 0.3 mg and 13.3 ± 0.5 mg, respectively

Catalytic reutilization of chromium-loaded NaY oxidation of ethyl acetate

EUROPACAT IX - Catalysis for a Sustainable WorldThe aim of this study is the reutilization of new materials obtained by biorecovery of chromium from water, in catalytic oxidations of volatile organic compounds. A biosorption system consisting of a microorganism supported on a NaY zeolite was used to remove hexavalent chromium from contaminated water. After the biosorption process, the chromium-loaded zeolite was used as catalyst to be applied in catalytic oxidation of ethyl acetate. The results showed that a higher content of chromium enhanced the activity and the C0 2 selectivity of the catalystinfo:eu-repo/semantics/publishedVersio

Information System for Tablets Identification (ISTI)

Abstract in proceedings of the Fourth International Congress of CiiEM: Health, Well-Being and Ageing in the 21st Century, held at Egas Moniz’ University Campus in Monte de Caparica, Almada, from 3–5 June 2019.This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.info:eu-repo/semantics/publishedVersio

Soil organisms associated to the weed suppressant Crotalaria juncea (Fabaceae) and its importance as a refuge for natural enemies.

Organismos de solo desempenham um importante papel em cultivos orgânicos de Crotalaria juncea (Fabaceae) e estão associados com a conservação natural do ambiente. O presente estudo teve como objetivo investigar a população de organismos de solo no cultivo orgânico de C. juncea, bem como sua importância como um refúgio para inimigos naturais. Dalbulus maidis (Hemiptera: Cicadellidae), Diabrotica sp. (Coleoptera: Chrysomelidae), Doru luteipes (Dermaptera: Forficulidae), Gryllus assimilis (Orthoptera: Gryllidae), Lagria villosa (Coleoptera: Lagriidae), Melanotus sp. (Coleoptera: Elateridae), Meloidogyne incognita (Tylenchida: Heteroderidae), Nephila clavipes (Araneae: Nephilidae), Orius insidiosus (Hemiptera: Anthocoridae), Pheidole sp. (Hymenoptera: Myrmicidae), Phyllophaga sp. (Coleoptera: Scarabeidae), Procornitermes sp. (Isoptera: Termitidae), Solenopsis sp. (Hymenoptera: Formicidae) e Utetheisa ornatrix (Lepidoptera: Arctiidae) foram identificados em C. juncea. Os organismos que foram encontrados durante um período de três meses em 144 trincheiras em C. juncea foram as espécies de pragas (84,47%) e inimigos naturais (15,53%). Inimigos naturais tiveram uma média de 11,89 indivíduos por 1,08 m3 de solo cultivado com C. juncea. A abundância de organismos na fase de vagem (5,49%) de C. juncea foi menor do que nas fases vegetativa (83,50%) e floração (11,01%). Plantas de C. juncea podem ser usadas como parte de um sistema de cultivo para o Manejo Integrado de Pragas