CHEMICAL CONSTITUENTS FROM THE LEAVES OF CARYA ILLINOINENSIS, AERIAL PARTS OF HELICHRYSUM STOECHAS AND HULLS OF ORYZA SATIVA

Md. Sarfaraj Hussain, Mohammed Ali*, Showkat Rassol Mir and Shahnaz Sultana

ABSTRACT

Carya illinoinensis (Wangenh.) K.Koch (family Juglandaceae) has astringent and piscicide properties. Its bark is used to treat tuberculosis, the pulverized leaves are rubbed on the skin to cure ringworm and taken as a tea. Helichrysum stoechas (L.) Moench (family Asteraceae) is useful to relieve allergies, bronchitis, common colds, flu, respiratory problems and sinusitis. Oryza sativa L. (family Poaceae) is used as a foodstuff, medicines and cosmetics. It is taken to treat abdominal ailments, beriberi, burns, dyspepsia, epistaxis, fever, filariasis, flux, hematemesis, inflammations, jaundice, nausea, neurodegenerative diseases, ophthalmia, paralysis, piles, psoriasis, rheumatoid arthritis, skin ailments, sores, swellings and in rejuvenation therapy. Phytochemical investigation of the leaves C. illinoinensis gave a new dixyloside characterized as α-L-xylopyranosyl-(2→1ꞌ)-α-L-xylopyranoside (1). The aerial parts of H. stoechas afforded n-tetracosanoic acid (lignoceric acid, 2), lanost-5-en-3α-ol 26-oic acid (3), lanost-5-en-3β-olyl hexadecanoate (lanost-5-en-26-oic acid 3β-olyl palmitate, 4) and lanostan-3α- olyl -26-oic acid 3-O-α-D-glucopyranoside (lanostan-3α- olyl -26-oic acid 3-O-α-D-glucoside, 5). The hulls of O. sativa led to the isolation of an aliphatic acid identified as n-hexacos-14-enoic acid (6). Except compounds 2 and 6, all the phytoconstituents are unknown and reported for the first time. The structures of all these compounds have been established on the basis of spectral data analyses and chemical reactions.

Keywords: Carya illinoinensis leaves, Helichrysum stoechas aerial parts, Oryza sativa hulls, phytoconstituents, isolation, characterization.