Re: [fukuoka_farming] neem oil
- One of the central tenants of Fukuoka's philosophy is NO pesticides.
La Clarine Farm
On Jul 15, 2010, at 11:22, Napi Ippolito <napi.ippolito@...> wrote:
> Dear Duezingare,
> On 7/14/10, you (duezingare <duezingare@...>) wrote:
> > we have a neem tree, with many berries.
> > how do we make neem oil, cold press as with olives?
> > and how do we use the leaves?
> > we're trying to make a spray for plants with problems..
> Many articles come up by putting "neem oil" or "making neem oil" into Google.
> According to:
> Methods of extraction
> 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 also varies widely in literature 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, oil, cake 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. Neem cake is a
> by-product obtained in the solvent extraction process for neem oil.
> Best wishes for finding more links to research about using your neem tree.
> Napi, Virginia, USA
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