ArticleScientific reports2025
Green solvent extraction of health boosting phenolics from pigeon pea husk.
Article in Scientific reports, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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Who cites it
2 citing papers in PubMed.
- Unlocking the Antioxidant Potential of Pigeon Peas (Foods (Basel, Switzerland) · 2026Article
- Recovery of Bioactive Compounds from Juçara Palm (Plants (Basel, Switzerland) · 2025Article
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Authors and funding
5 authors.
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Abstract
The optimization of phenolic compound extraction from pigeon pea (Cajanus cajan L.) husk was explored by manipulating three key process variables: aqueous ethanol concentration (20-60% v/v), extraction temperature (30-60 °C), and extraction time (2-6 h). Utilizing a Box-Behnken design under Response Surface Methodology (RSM), we meticulously optimized these variables to maximize extract yield, total phenolic content, and DPPH radical scavenging activity. The ideal extraction conditions determined via desirability function analysis were found to be 41.83% (v/v) ethanol concentration, 59.36 °C extraction temperature, and 6 h extraction time. These parameters yielded an impressive 9.67 ± 0.02% extract yield, 47.99 ± 0.60 mg GAE/g total phenolic content, and 51.24 ± 0.43% DPPH radical scavenging activity, closely aligning with predicted values. LC-MS (ESI-Q-TOF) metabolite profiling of the optimized extract revealed a rich presence of flavonoids, alkaloids, terpenoids, lignans, phenols, xanthones, and glycosides. This study underscores the valorisation potential of pigeon pea husk-a typically discarded by-product-for sustainable extraction of valuable phenolic compounds under optimal conditions.
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