Buscar
Mostrando ítems 21-30 de 28379
Use of acids as additives in sugarcane silage
(Univ Antioquia, Fac Ciencias Agrarias, 2015-09-01)
Background: sugarcane silage often becomes a problem for the producers due to its high population of yeast and its high content of soluble carbohydrates. Objective: to evaluate the effect of formic and phosphoric acid on ...
Z-sinapinic acid: the change of the stereochemistry of cinnamic acids as rational synthesis of a new matrix for carbohydrate MALDI-MS analysis
(Wiley, 2013-11)
Successful application of matrix-assisted laser desorption/ionization (MALDI) MS started with the introduction of efficient matrices such as cinnamic acid derivatives (i.e. 3,5-dimethoxy-4-hydroxycinnamic acid, SA; ...
Effect of the association between citric acid and EDTA on root surface etching
(2013)
Objective: This study aims to compare the clot stabilization on root surfaces conditioned with citric acid and ethylenediaminetetraacetic acid (EDTA). Materials and methods: Scaled root samples (n = 100) were set in five ...
Mulinane-type diterpenoids from Laretia acaulis
(2000)
In addition to the known mulinolic acid and mulin-11, 13-dien-20-oic acid, 13-epimulinolic acid has been isolated from the aerial parts of Laretia acaulis (Cav.) Gill et Hook (Umbelliferae). Its structure was based on ...
Immunostimulatory effects of the phenolic compounds from lichens on nitric oxide and hydrogen peroxide production
(2009-10-01)
The effects of isolated compounds from Brazilian lichens and their derivatives on H 2O 2 and NO production were studied using murine macrophages as a part of an attempt to understand their possible immunomodulatory properties. ...
Effect of L-malic and citric acids metabolism on the essential amino acid requirements for Oenococcus oeni growth
(Wiley Blackwell Publishing, Inc, 2002-08)
Aims: The purpose of this work was to study the effect of L-malic and/or citric acids on Oenococcus oeni m growth in deficient nutritional conditions, and their roles as possible biosynthetic precursors of the essential ...
Oxygen and temperature effect on continuous citric acid secretion in Candida oleophila
(Pontificia Universidad Católica de Valparaíso, 2006)
Carbohydrate and lipid status in soybean roots influenced by ferulic acid uptake
(2001-12-01)
The objective of this research was to investigate how the allelochemical ferulic acid affects the carbohydrate and lipid contents of soybean roots cultivated in nutrient culture. The results presented revealed that ferulic ...
High pressure solid-liquid equilibria of fatty acids
(Elsevier Science BvAmsterdamHolanda, 2007)
Fatty acids profile and alteration of lemon seeds extract (Citrus limon) added to soybean oil under thermoxidation
(2013-10-01)
This paper aimed at evaluating fatty acids profile and the total alteration of lemon seeds extract added to soybean oil under thermoxidation, verifying the isolated and synergistic effect of these antioxidants. Therefore, ...