Neem

Synonyms Hin.-Nira, nimb; Mal. – Veppa; Mar. – Limba, Oriya- Nimba; Tam- Vembu.
BS Neem consists of the fresh or dried leaves and seed oil of Azadirachta indica J. Juss (Melia Indica or M. azadirachta Linn.).
Family Meliaceae
CC 1. Leaves:
  • Nimbin, 6- desacetylnimbinene.
  • Quercetin, β-sitosterol.
  • Nimbin, 6- desacetylnimbinene.
  • Nimbin & Nimbidinin
  • Ascorbic acid, n-hexacosanol, nonacosane and amino acid.
    2. Fruits:
  • Gedunin
  • 17-epiazadiradione
  • Azadiredione, azadirone, nimbiol.
  • 7-deacetoxy-7α- hydroxygedunin.
    3. Seeds:
  • Tetranortriterpenoids; 1, 2-diepoxyazadiradiradione,
  • Azadirachtin
  • 7-acetylneotrichilenone, 7-desacetyl-7-benzoyIgedunin
    4. Oils:
  • Fatty acid: Myristic acid, palmitic acid, stearic acid, oleic acid and linoleic acid.
  • Glycerides: Oleopalmitostearin, oleodistearin, odiolein and linoleodiolein.
  • Bitter principle: Nimbidin, nimbidinin, Nimbin, nimbinin and nimbidol.
  • Uses 1. Leaves:
  • Insect-repellent.
  • Ulceration of cow-pox.
  • Poultice, applied to boils.
  • Antiviral and antifungal.
  • In worm, jaundice and in skin disease.
    2. Oils:
  • Stimulant, antiseptic.
  • Spermicidal
  • Antiviral activity.
  • For soap making.
  • Rheumatism and skin disease.
  • Manufacturing of oleic acid and stearic acid.

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