Mixing neem oil with aliphatic hydrocarbon solvent; filtering mixture to separate the filtrate solution from precipitate; contacting filtrate with polar extractant solvent to extract spermicidal agent; removing solventdoi:US6333058 B1A process for preparing a spermicidal agent from neem oil includes (...
Due to the coarse sieve mesh used, millet grains and most seeds of wild plants were lost during flotation, if they were present in the first place. The loss of any millet grains has significant implications for interpreting seasonal crop cycles and crop diversification. The limitations of these...
Neem oil fatty acid distillation residue based pesticide which is storage stable, water soluble, environmentally safe and rich in bitter principles. It is obtained by saponifying the neem oil fatty acid distillation residue with an aqueous alkali, drying the resulting soap, allowing the resulting ...