Toxicological studies and seasonal variation of amino acid composition of the red alga corallina officinalis L.

The toxicological studies of the alcoholic extract of the red alga Corallina officinalis L. including its effect on the liver and kidney functions were investigated. A dose of 400 mg/kg animal body weight [1/10 LD50] did not affect the liver and kidney functions, while a dose of 3.10 g/kg animal body weight exhibited a significant increase in SGPT, SGOT, blood urea and creatinine. The seasonal variation of amino acids composition proved that the protein of C. officinalis L. collected in winter was characterized by a higher content of essential amino acids than the other two algal samples collected in spring and summer

Investigation of the free sugars and mucilage of euphorbia pseudocasts A. Berger and euphorbia pubica N.E.BR.

Free sugars of the aerial parts of Euphorbia pseudocactus and Euphorbia nubica were isolated. Identification was carried out by paper chromatography [PC] and gas liquid chromatography [GLC] which revealed the presence of arabinose, rhamnose, xylose, fructose, galactose, glucose and glucuronic acid in a ratio of [16: 20: 12: 4: 16: 3: 1] in E. pseudocactus, as well as arabinose, rhamnose, xylose, fructose, galactose, glucose, galacturonic acid and glucuronic acid were detected in a ratio of [2: 1: 14: 5: 2: 18: 2: 1] in E. nubica. Mucilage of each plant was separately extracted by cold and hot methods and weighed. PC and GLC analysis of the mucilage hydrolyzates revealed the presence of arabinose, rhamnose, xylose, galactose, glucose, and galacturonic acid in different ratios in the four mucilage hydrolyzates of the two plants

Free sugars, mucilage and amino acids of leaves of hibiscus esculentum L. var. lady finger

Free sugars, mucilage and amino acids contents of leaves of Hibiscus esculentus L., var. Lady's finger [Adelmoschus esculentus Moench, okra] were studied. GLC and PC analysis of free sugars and mucilage hydrolysates revealed the presence of rhamnose, arabinose, xylose fructose, glucose, galactose, galacturonic acid and glucuronic acid. Moreover, analysis of free amino acids content and total amino acids of protein hydrolysate was carried out by HPLC technique. The major free amino acid is tyrosine [0.76%], while glutamic acid [2.22%], aspartic acid [1.76%] and arginine [1.21%] constitute the main amino acids in the protein hydrolysate of the leaves of H. esculentus L., var. Lady's finger

Coumarins of euphorbia pseudocactus A berger

Five coumarins have been isolated from the ethereal extract of the alcoholic extract of the aerial parts of E. pseudocactus A. Berger. The isolated coumarins were esculetin, xanthotoxol, daphnetin, isooxyimperatorin and xanthotoxin. The identification was performed by spectroscopic analysis and m.p. determination

Flavonoids of euphorbia pubica NEB

From the shoots of Euphorbia nubica N. E. Br., six flavonoids were isolated and identified, as quercetin, kaempferol, quercetin - 3-O- galactoside, quercetin-3-O-glucoside, kaempferol-3-O-glucoside and kaempferol-3,7-di-O-rhamnoside. These compounds were reported for the first time from this plant