Development of the major triterpenoids and oil in the fruit and seeds of neem (Azadirachta indica)
1996
Johnson, S. | Morgan, Ed | Peiris, C.N.
In order to learn the best time for harvesting Neem (Azadirachta indica) seeds, the amount of the five major triterpenoids, together with the oil content have been determined throughout a fruiting season in six selected trees in Sri Lanka. The triterpenoid content and the relative proportions of the major compounds changed little from the hard green fruit stage to mature seeds, while the oil content increased markedly with time. The highest content of azadirachtin (10 mg g-1 seed kernels) was recorded in newly, ripened seeds. There was some loss of salannin and azadirachtin in storage after harvesting for up to 6 months.
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