Neem A Tree for Solving Global Problems (1992) / Chapter Skim
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8 Industrial Products
8 Industrial Products
Pages 71-77
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From page 71... ...
Unlike most vegetable oils, it contains sulfur compounds, whose pungent odor is reminiscent of garlic. A large industry in India extracts the oil remaining in the seed cake using hexane.
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From page 72... ...
Purifying neem oil is an elaborate and costly process at present. In one method, the smelly sulfur compounds are distilled off, which frees the oil from both odor and susceptibility to rancidity (because it also removes the free fatty acids)
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From page 73... ...
The Khadi and Village Industries Commission has devised and popularized simple methods for depulping, drying, and decorticating neem products, even in the remotest villages. costly solvents and complex facilities.
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From page 74... ...
It contains more nitrogen, phosphorus, potassium, calcium, and magnesium than farmyard manure or sewage sludge.4 It is widely used in India to fertilize cash crops, particularly sugarcane and vegetables. Plowed into the soil, it protects plant roots from nematodes and white ants, probably due to its content of the residual limonoids.
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From page 75... ...
Surprisingly, neem cake sometimes seems to make soil more fertile than calculations predicts This is apparently due to an ingredient that blocks soil bacteria from converting nitrogenous compounds into (useless) nitrogen gas.
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From page 76... ...
It is seldom attacked by termites, is resistant to woodworms, and it makes useful fence posts and poles for house construction. Pole wood is especially important in developing countries; the tree's ability to re sprout after cutting and to regrow its canopy after pollarding makes neem highly suited to pole production.
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From page 77... ...
· Honey In parts of Asia neem honey commands premium prices, and people promote apiculture by planting neem trees. · Food There are odd reports of people eating neem.
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