Advanced search
Start date
Betweenand
(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Thermoanalytical and spectroscopic characteristics of young and old leaves powder and methanolic extracts of Niedenzuella multiglandulosa

Full text
Author(s):
Russo, Helena Mannochio [1] ; Goncalves Nunes, Wilhan Donizete [1] ; Bolzani, Vanderlan da Silva [1] ; Ionashiro, Massao [1] ; Caires, Flavio Junior [1, 2]
Total Authors: 5
Affiliation:
[1] Univ Estadual Paulista UNESP, Inst Quim, Araraquara, SP - Brazil
[2] Univ Estadual Paulista Unesp, Fac Ciencias, Bauru, SP - Brazil
Total Affiliations: 2
Document type: Journal article
Source: JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY; v. 132, n. 1, p. 771-776, APR 2018.
Web of Science Citations: 1
Abstract

Niedenzuella multiglandulosa is a plant species known for having high toxicity and to cause death in cattle and sheep, promoting economic losses in Brazilian trade balance difficult to estimate. This work aims to evaluate the potential of thermoanalytical techniques (TG-DSC, TG-FTIR) and FTIR to identify compositional differences between the powder samples and methanolic extracts of young and old leaves. The TG-DSC profile for young and old leaves powder and extract presented some differences, mainly in the fourth mass loss step, that was attributed to the greater content of tannins in old leaves as also evidenced by FTIR. The cyclic DSC and TG curves showed that the leaves samples are highly hygroscopic, adsorbing water vapor even from the controlled humidity atmosphere. This characteristic thermal behavior can be useful for sample identification and characterization. (AU)

FAPESP's process: 17/14936-9 - Preparation, characterization and thermoanalytical studies of heterogeneous catalysts of double selenates of Mg/Co and Mg/Cu in biodiesel production using different oils
Grantee:Massao Ionashiro
Support type: Regular Research Grants
FAPESP's process: 14/50926-0 - INCT 2014: biodiversity and natural products
Grantee:Vanderlan da Silva Bolzani
Support type: BIOTA-FAPESP Program - Thematic Grants
FAPESP's process: 13/07600-3 - CIBFar - Center for Innovation in Biodiversity and Drug Discovery
Grantee:Glaucius Oliva
Support type: Research Grants - Research, Innovation and Dissemination Centers - RIDC