Abstract
A colorimetric procedure for determining AZRL (azadirachin related limonoids) contents in the extracts from neem seeds was developed by selection for a desirable wavelength and optimization of the reaction conditions (vanillin concentration, volume of H2SO4 added, and reaction time) based on the fact that a colorization reaction occurs between azadirachin (C35H44O16) and AZRL, on the one hand, and acidified vanillin in methanol, on the other. Applied to determine AZRL content in 3 neem kernel extracts, this procedure gave satisfactory results.
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Claims 2
Claim · model-written summary
A colorimetric procedure was developed for determining AZRL contents in neem seed extracts.
- Taxon
- neem seeds
.jpg?width=60)
Azadirachta indicae0 - Outcome
- AZRL (azadirachin related limonoids) contentse0
Not reportedComparatorValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“A colorimetric procedure for determining AZRL (azadirachin related limonoids) contents in the extracts from neem seeds was developed”
Claim · model-written summary
The colorimetric procedure gave satisfactory results when applied to AZRL content in three neem kernel extracts.
- Taxon
- neemAzadirachta indicae1
- Outcome
- AZRL contente1
- Qualifier
- satisfactory resultse1
Not reportedComparatorValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Applied to determine AZRL content in 3 neem kernel extracts, this procedure gave satisfactory results”