• Nenhum resultado encontrado

Extracting natural dyes from wool—an evaluation of extraction methods

N/A
N/A
Protected

Academic year: 2021

Share "Extracting natural dyes from wool—an evaluation of extraction methods"

Copied!
14
0
0

Texto

Loading

Imagem

Fig. 2 Arraiolos carpet (MNAA collection, catalogue number 36) with fibre sampling (S1 – S14) location
Fig. 3 LC-DAD chromatograms of the dyed wool extracts obtained with the EDTA-2 extraction method
Fig. 4 SEM micrographs of a untreated, undyed wool; b, c dyed wool extracted with HCl-1 and EDTA-2 methods, respectively
Fig. 5 LC-DAD-MS chromatogram of sample S12. Identification of the chromatographic peaks based on UV and mass data (Table 2) as follows: (1) luteolin di-O-glucoside; (2) luteolin 3,7 ′ -di-O-glucoside;
+2

Referências

Documentos relacionados

In recent years, some new extraction methods have been employed for the extraction of natural products from herbals, including ultrasound- assisted extraction (Zhang et

The effects of aminooxyacetic acid, benzyladenine, and 1-methylcyclopropene treatments on the post-production flower quality of potted carnation plants ( Dianthus caryophyllus

The objective of this study was to extract collagen from chicken feet, determining optimal extraction conditions according to acetic acid concentration, pepsin content and time

The aim of this study was to extract pectin from the guava pulp during 7 days of ripening by two methods (ethanol and EDTA extraction) and suggest modifications in the methods

The objective of this study was to extract collagen from chicken feet, determining optimal extraction conditions according to acetic acid concentration, pepsin content and time

Results for the analysis of solutions prepared by microwave-assisted nitric acid digestion of these samples were compared to those obtained by formic acid extraction so as

Thus, considering these factors, this study was conducted to compare in vitro the decalcifying effect of 1% citric acid, 1% EDTA, 1% EGTA, 1% CDTA and saline solution (control)

Abstract: This in vitro study evaluated (1) the dissolution of bovine pulp tissue in solutions consisting of varying NaOCl concentrations and com- bined with EDTA; and (2) the