Guerrero-León, Beatriz Corbino, Graciela Dufresne, Alain Errea, María Inés D’Accorso, Norma Garcia, Nancy L.
Published in
Journal of Polymer Research
In this work, the peel of Arapey Sweet Potato (Ipomoea batatas), a vegetable waste, was used as a source of phenolic compounds which are widely recognized as beneficial antioxidants for human health. The extract obtained from Ipomoea batatas exhibited an antioxidant activity significantly higher than many antioxidant agents reported in literature (...
Evon, Philippe Labonne, Laurent Padoan, Elio Vaca-Garcia, Carlos Montoneri, Enzo Boero, Valter Negre, Michéle
Controlled-release fertilizers (CRF) are needed under current agriculture practice to decrease the environmental impact caused by fertilizer doses applied in excess of plants’ uptake rate. Commercial CRF are available. They are manufactured from mineral fertilizers encapsulated into a synthetic polymer matrix or coated by a polymer layer. However, ...
Koch, Moritz Bruckmoser, Jonas Scholl, Jörg Hauf, Waldemar Rieger, Bernhard Forchhammer, Karl
Published in
Microbial Cell Factories
BackgroundPHB (poly-hydroxy-butyrate) represents a promising bioplastic alternative with good biodegradation properties. Furthermore, PHB can be produced in a completely carbon–neutral fashion in the natural producer cyanobacterium Synechocystis sp. PCC 6803. This strain has been used as model system in past attempts to boost the intracellular prod...
Martínez-Herrera, Raul E Alemán-Huerta, María E Almaguer-Cantú, Verónica Rosas-Flores, Walfred Martínez-Gómez, Víctor J Quintero-Zapata, Isela Rivera, Gildardo Rutiaga-Quiñones, O Miriam
Published in
International journal of biological macromolecules
Nowadays, there are great research interest in polyhydroxybutyrate (PHB) recovery protocols that reduce the use of organic solvents and efficiently recover this bacterial biopolymer. The present study reports an extraction protocol assisted by ultrasound, which is a rapid protocol that increases the amount of polymeric matter extracted, reduces the...
Freire, Miguel Ángel
Published in
Bio Systems
Many theories of the origin of life focus on only one primitive polymer as an archetype of a world paradigm. However, life would have emerged within more complex scenarios where a variety of molecules and diverse polymers interconnected by a few similar chemical reactions. Previous work suggested that the ancestors of all major biopolymers would ha...
Steiner, Elisa Margesin, Rosa
Published in
Annals of Microbiology
PurposeTo evaluate the production of a cold-active CMCase (endoglucanase) by Bacillus mycoides AR20-61 isolated from Alpine forest soil and to characterize the crude enzyme.MethodsAfter studying the effect of cultivation parameters (medium composition, temperature, NaCl concentration, pH) on bacterial growth and enzyme production, the crude enzyme ...
Baba Hamed, Samira
Published in
Journal of the Brazilian Society of Mechanical Sciences and Engineering
This study is justified by the issues on site in directional well as blowouts, abnormal formation pressure, obstructions in the wellbore, inaccessible target locations caused by an obstacle (for example dome of salt) and the pollution of formations. The objective of this study is to optimize the hole cleaning in directional well with environmentall...
Ribas Fonseca, Larissa Porto Santos, Tatiana Czaikoski, Aline Lopes Cunha, Rosiane
Published in
Food research international (Ottawa, Ont.)
Synthesis of nanocomplexes is a simple and low-cost technique for the production of encapsulation systems aiming industrial applications, based on the interaction of at least two oppositely charged molecules. Gellan gum (anionic) is a water-soluble biopolymer resistant to stomach pH conditions, therefore an interesting alternative as an encapsulati...
Kandhwal, Mimansa Behl, Tapan Kumar, Arun Arora, Sandeep
Published in
Current pharmaceutical design
Nitric oxide (NO) is a promising pharmaceutical component that has vasodilator, antibacterial and wound healing activity. Chronic ulcers are non-healing disorders that are generally associated with distortion of lower limbs. Among the severe consequence's derivative of these diseases, are the problems of chronic wound progression. NO which is categ...
Chagas, Thales Quintão Araújo, Amanda Pereira da Costa Malafaia, Guilherme
Published in
The Science of the total environment
The toxicological safety of products developed as alternative for conventional plastics (i.e., petroleum derivatives) inevitably demands conducting (eco)toxicological studies. Thus, the aim of the current study was to evaluate the biochemical toxicity of polyethylene microplastics (PE MPs) (representative of conventional MPs) and polylactic acid bi...
