AI Article Synopsis
- The study investigated how factors like ethanol concentration, extraction time, and temperature influence the yield and bioactive content of Tagetes lemmonii leaf extracts using response surface methodology (RSM).
- Significant findings indicated that ethanol concentration had a major impact on the extraction variables, while temperature had a moderate effect.
- The leaf extracts were found to be rich in bioactive compounds with notable biological activities, including antioxidant properties and effectiveness as an insect toxin against Tribolium castaneum, as well as the ability to slow down lipid oxidation in olive oil.
Article Abstract
The aim of this study was to examine the effect of process factors such as ethanol concentration, extraction time and temperature on the extraction yield and the bioactive contents of Tagetes lemmonii leaf extracts using response surface methodology (RSM). ANOVA results showed that the response variables were affected by the ethanol concentration to a very significant degree and by extraction temperature to a lesser degree. GC/MS characterization showed that the extract is rich in bioactive compounds and those present exhibited important biological activities such as antioxidant, insect repellence and insecticidal activities. The results from the toxicity assay demonstrate that the extract obtained from the leaves of Tagetes lemmonii was an effective insect toxin against Tribolium castaneum. The radical scavenging activity and p-anisidine test results of olive oil spiked with different concentrations of leaf extract showed that the phenolic compounds can retard lipid oxidation.
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| http://dx.doi.org/10.1016/j.ecoenv.2017.12.066 | DOI Listing |
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