oil is a vegetable oil pressed from the fruits and seeds of Neem (Azadirachta
indica), an evergreen tree which is endemic to the Indian sub-continent
and has been introduced to many other areas in the tropics.
perhaps the most important of the commercially available products of
neem for organic farming and medicines.
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.
comprises mainly triglycerides and large amounts of triterpenoid
compounds, which are responsible for the bitter taste.
hydrophobic in nature and in order to emulsify it in water for
application purposes, it must be formulated with appropriate
Azadirachtin content of Neem Oil varies from 300ppm to over 2500ppm
depending on the extraction technology and quality of the neem seeds
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.
Neem oil yield that can be obtained from neem seed kernels varies also
widely in literature and varies from 25% to 45%.
oil can be obtained through pressing (crushing) of the seed kernel both
through cold pressing or through a process incorporating temperature
seed oil can also be obtained by solvent extraction of the neem seed,
fruit, oilcake or kernel.
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
antifeedant effects of both diethyl toluamide (DEET) and neem oil added
at concentrations of 0.2% to cereal-based baits used for vertebrate pest
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
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.
principle ingredient in Azadirachtin found naturally in neem seed oil is
being used the world over for manufacturing : Natural Pesticide, Natural
Insecticide, Natural Fungicide.
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
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