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International Journal of Microbiology
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International Journal of Microbiology
/
2022
/
Article
/
Tab 3
/
Research Article
Identification of Potent Bioassay Guided Terpenoid and Glycoside Root Fractions of
Astragalus candolleanus
against Clinically Significant Bacterial Strains
Table 3
FTIR analysis of hydro-methanolic
A. candolleanus
root extract.
S. no.
Expected wave number (cm
−1
)
Observed wave number
Characteristic functional group
Compound type
1
2850–2970
1340–1470
1434.14
2878.88
C-H
Alkane
2
1050–1300
1067.65
C-O
Alcohol, ether, carboxylic acid, esters
3
1500–1570
1300–1370
1316.47
1354.09
NO
2
Nitro
4
1610–1680
1628.95
C=C
Alkenes
5
1690–1760
1736.97
1751.44
C=O
Aldehyde, ketones, carboxylic acids, esters
6
3200–3600
3240.55
O-H
Phenols, hydrogen- bonded alcohols
7
3500–3650
3515.42
O-H
Monomeric carboxylic acids