Neem Oil                              General, Extraction, Functions, Technology, Company Profiles, Consultants, Patent, Application, Report                                             Primary Information Services                                                     Home. Ordering Information. Contact

• Neem oil is a vegetable oil pressed from the fruits and seeds of Neem, an evergreen tree which is endemic to the Indian sub-continent and has been introduced to many other areas in the tropics.
• It is perhaps the most important of the commercially available products of neem for organic farming and medicines.
• Neem oil is generally light to dark brown, bitter and has a rather strong odour that is said to combine the odours of peanut and garlic.
• It comprises mainly triglycerides and large amounts of triterpenoid compounds, which are responsible for the bitter taste.
• It is hydrophobic in nature and in order to emulsify it in water for application purposes, it must be formulated with appropriate surfactants.
• The Azadirachtin content of Neem Oil varies from 300ppm to over 2500ppm depending on the extraction technology and quality of the neem seeds crushed.
• The method of processing is likely to affect the composition of the oil, since the methods used, such as pressing (expelling) or solvent extraction are unlikely to remove exactly the same mix of components in the same proportions.
• The Neem oil yield that can be obtained from neem seed kernels varies also widely in literature and varies from 25% to 45%.
• The oil can be obtained through pressing (crushing) of the seed kernel both through cold pressing or through a process incorporating temperature controls.
• Neem seed oil can also be obtained by solvent extraction of the neem seed, fruit, oilcake or kernel.
• A large industry in India extracts the oil remaining in the seed cake using hexane. This solvent-extracted oil is of a lower quality as compared to the cold pressed oil and is mostly used for soap manufacturing.
• The antifeedant effects of both diethyl toluamide (DEET) and neem oil added at concentrations of 0.2% to cereal-based baits used for vertebrate pest control.
• Foliar applications of neem oil and fish emulsion, derived from neem seed and menhaden fish, respectively, were tested for their ability to reduce bacterial spot of tomato and bell pepper under both greenhouse and field conditions.
• Neem bark, seed and leaf oil is being increasingly used in manufacturing a large number of skin products, body lotions, beauty care facial packs in combination with other natural ingredients.
• The principle ingredient in Azadirachtin found naturally in neem seed oil is being used the world over for manufacturing : Natural Pesticide, Natural Insecticide, Natural Fungicide.
• Neem seed, leaf and bark oil is used to manufacture herbal medicines. It can be used as raw neem oil, oil extract to be used in wide medicinal applications.

• Neem oil
• Functional Blocks

 Extraction

• Rapid preconcentration method for the determination of azadirachtin-A and -B, nimbin and salannin in neem oil samples by using graphitised carbon solid phase extraction
• Extraction of neem oil using N-Hexane and Ethanol
• Neem Seed Kernel Extracts and Azadirachtin as Oviposition Deterrents against the Melon Fly and the Oriental Fruit Fly
• Neem-based Extract Processing
• Obtaining Quality Neem Oil

Functions

• Antifeedant effects of diethyl toluamide and neem oil on native cave weta, cockroaches, and amphipods
• Effect of Biofertilizers and Neem Oil on the Entomopathogenic Fungi Beauveria bassiana (Bals.) Vuill. and Metarhizium anisopliae (Metsch.) Sorok
• Effects of neem oil on Varroa mites and bees
• Effect of neem oil on some pathogenic bacteria
• Effect of foliar applications of neem oil and fish emulsion on bacterial spot and yield of tomatoes and peppers
• Impact of Monocrotophos and Neem Oil mixture on Defoliator Management in Groundnut
• The effect of a homeopathic neem preparation for the prophylaxis of malaria
• Evaluation of copperised cashew nut shell liquid and Neem oil as wood Preservatives
• Efficacy of fish oil rosin soap, neem oil and insecticides against onion thrips Thrips tabaci Lindeman

Company Profiles

• Company in Bangalore
• Company in Chennai
• Company in Haryana
• Company in Indonesia
• Company in Kanpur
• Company in Nigeria
• Company in Tamil Nadu
• Company in UK

Patent and Technology

• Co-extraction of azadirachtin and neem oil
• Neem oil as a male contraceptive
• Natural insect repellent formula and method of making same
• Reduced-cloud-point clarified neem oil and methods of producing
• Fungicidal compositions derived from neem oil and neem wax fractions
• Preparation of edible neem oil
• Preparation of neem biopesticides at farm level
• Low-cost micro-rainwater harvesting technology (Jalkund) for new livelihood of rural hill farmers

Primary Information Services
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Ullagaram, Chennai - 600091, India.
 Phone: 91 44 22421080  Email : informer@eth.net
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