Eco-Oriented Formulation and Stabilization of Oil–Colloidal Biodelivery Systems Based on GC-MS/MS-Profiled Phytochemicals from Wild Tomato for Long-Term Retention and Penetration on Applied Surfaces for Effective Crop Protection

• Published in: Journal of agricultural and food chemistry 2023-03, Vol.71 (8), p.3719-3731
• Main Authors: Iqbal, Nusrat, Hazra, Dipak Kumar, Purkait, Aloke, Agrawal, Amrish, Saini, Mahesh Kumar, Kumar, Jitendra
• Format: Article
• Language: English
• Subjects: Agricultural and Environmental Chemistry; Crop Protection; Gas Chromatography-Mass Spectrometry; Phytochemicals; Plant Oils - chemistry; Solanum lycopersicum; Tandem Mass Spectrometry
• ISSN: 0021-8561; 1520-5118
• DOI: 10.1021/acs.jafc.2c08612

Vegetable oils as hydrophobic reserves in oil dispersions (OD) provide a practical approach to halt bioactive degradation for user and environment-efficient pest management. Using biodegradable soybean oil (57%), castor oil ethoxylate (5%), calcium dodecyl benzenesulfonates as nonionic and an-ionic surfactants, bentonite (2%), and fumed silica as rheology modifiers, we created an oil–colloidal biodelivery sytem (30%) of tomato extract with homogenization. The quality-influencing parameters, such as particle size (4.5 μm), dispersibility (97%), viscosity (61 cps), and thermal stability (2 years), have been optimized in accordance with specifications. Vegetable oil was chosen for its improved bioactive stability, high smoke point (257 °C), coformulant compatibility, and as a green build-in-adjuvant by improving spreadability (20–30%), retention and penetration (20–40%). In in vitro testing, it efficiently controlled aphids with 90.5% mortalities and 68.7–71.2% under field-conditions without producing phytotoxicity. Wild tomato-derived phytochemicals can be a safe and efficient alternative to chemical pesticides when combined wisely with vegetable oils.