2006
DOI: 10.1590/s0102-695x2006000500014
|View full text |Cite
|
Sign up to set email alerts
|

Abstract: RESUMO:O artigo reporta a obtenção do extrato fl uido de Symphytum offi cinale L., e posterior secagem por nebulização, e a caracterização físico-química por técnicas termogravimétricas, espectroscópicas e cromatográfi cas. O adjuvante de secagem utilizado foi hidroxietilcelulose na concentração de 1,5%. Foi observado que o processo de secagem por nebulização, nas condições operacionais estabelecidas, não infl uenciou as características dos constituintes do extrato seco em relação ao extrato fl uido pelas técn… Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
4
1

Citation Types

0
7
0
1

Year Published

2012
2012
2021
2021

Publication Types

Select...
4
2
1

Relationship

0
7

Authors

Journals

citations
Cited by 12 publications
(8 citation statements)
references
References 5 publications
(5 reference statements)
0
7
0
1
Order By: Relevance
“…The characterization of an extract implies the definition of the contents of its main chemical constituents, as well as moisture, color, particle size distribution, viscosity, and technological properties, ensuring the safety, efficacy and quality of a product. When formulating products containing natural actives, the standard identification of markers or the development of methods that allow the quantification of purified chemical groups before, during, and after the obtaining process is essential [38].…”
Section: Determination Of Biocompound Contents By Ultraviolet Spectrophotometry (Uv: Vis)mentioning
confidence: 99%
See 3 more Smart Citations
“…The characterization of an extract implies the definition of the contents of its main chemical constituents, as well as moisture, color, particle size distribution, viscosity, and technological properties, ensuring the safety, efficacy and quality of a product. When formulating products containing natural actives, the standard identification of markers or the development of methods that allow the quantification of purified chemical groups before, during, and after the obtaining process is essential [38].…”
Section: Determination Of Biocompound Contents By Ultraviolet Spectrophotometry (Uv: Vis)mentioning
confidence: 99%
“…Infrared absorption spectroscopy is used in the literature to identify possible characteristic functional groups in organic compounds, providing important information on the chemical structure of the sample [38]. The identification of the functional bands using the Fourier transform infrared absorption spectroscopy (Figure 4) was performed in the CA by-product extract, where it was possible to observe bands at 1600, 2920, and 3331 cm −1 , which correspond to C-C stretching of aromatic ring by phenol group, C-H stretching of aromatic ring by phenol group, and O-H stretching of phenol group, respectively [27,41].…”
Section: Fourier Transform Infrared Spectroscopic Profile Identification (Ft-ir)mentioning
confidence: 99%
See 2 more Smart Citations
“…Bandas em torno de 1452 e 1446 cm -1 são correspondentes a vibração de alongamento de anéis aromáticos (RICCI et al, 2015). Bandas em torno de 1509 cm -1 , no caso dos extratos em 1533 cm -1 para o extrato de barbatimão e em 1521 cm -1 para o extrato de sangra d'água, indicam a existência de anéis aromáticos e ligações C-H nas amostras, que pode ser associada a presença de lignina (LIU et al, 2008) Bandas em torno da faixa de 1331 e 1100 cm -1 , atribuída ao estiramento de C-O e relacionada aos éteres, pode indicar a presença de metabólicos secundários, como flavonoides, antraquinonas, alcaloides quinolínicos e fenilpropanoides ( RICCI et al, 2015;SILVA JÚNIOR et al, 2006).…”
Section: Espectroscopia No Infravermelho Com Transformada De Fourierunclassified