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Characterization and Testing of Fine Powder Formulation of Whole Neem Fruits


Affiliations
1 Department of Chemical Engineering, Visvesvaraya National Institute of Technology, Nagpur 440 010, India
2 Nuclear Agriculture and Biotechnology Division, Bhabha Atomic Research Centre, Mumbai 400 085, India
 

Azadirachtin (Aza) is a key ingredient of neem-based pesticides. However, use of neem pesticides is limited due to storage instability of Aza. In this work, freeflowing fine powder of whole dry neem fruits (powder neem formulation, PNF) is developed without separately extracting Aza. The optimal particle size was found to be −44 + 60 mesh. PNF is characterized by Fourier transform infrared, X-ray diffraction, Brunauer- Emmett-Teller surface area, particle-size distribution and scanning electron microscope. Stability of Aza was found to be improved and it was assessed by studying the effect of particle size, temperature, UV light exposure and release study in buffered and natural water samples.

Keywords

Azadirachtin, Characterization, Free-Flowing Powder, Particle-Size, Stability.
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  • Characterization and Testing of Fine Powder Formulation of Whole Neem Fruits

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Authors

Sonali Tajane
Department of Chemical Engineering, Visvesvaraya National Institute of Technology, Nagpur 440 010, India
Praful Dadhe
Department of Chemical Engineering, Visvesvaraya National Institute of Technology, Nagpur 440 010, India
Sayaji Mehetre
Nuclear Agriculture and Biotechnology Division, Bhabha Atomic Research Centre, Mumbai 400 085, India
Sachin Mandavgane
Department of Chemical Engineering, Visvesvaraya National Institute of Technology, Nagpur 440 010, India

Abstract


Azadirachtin (Aza) is a key ingredient of neem-based pesticides. However, use of neem pesticides is limited due to storage instability of Aza. In this work, freeflowing fine powder of whole dry neem fruits (powder neem formulation, PNF) is developed without separately extracting Aza. The optimal particle size was found to be −44 + 60 mesh. PNF is characterized by Fourier transform infrared, X-ray diffraction, Brunauer- Emmett-Teller surface area, particle-size distribution and scanning electron microscope. Stability of Aza was found to be improved and it was assessed by studying the effect of particle size, temperature, UV light exposure and release study in buffered and natural water samples.

Keywords


Azadirachtin, Characterization, Free-Flowing Powder, Particle-Size, Stability.

References





DOI: https://doi.org/10.18520/cs%2Fv112%2Fi09%2F1942-1948