472,089
edits
LOG IN. UPLOAD PICTURES.
The Philippines has Zambo Mart to help propagate the Chavacano Language.
Difference between revisions of "Tawa tawa"
Jump to navigation
Jump to search
→ → Go back HOME to Zamboanga: the Portal to the Philippines.
no edit summary
| Line 20: | Line 20: | ||
The plant is an annual, hairy herb, usually much - branched from the base - these branches being simple or forked and ascending or spreading - up to 40 centimeters long, and often reddish or purplish. The leaves are opposite, distichous, elliptic-oblong to oblong-lanceolate, 1 to 2.5 centimeters long, toothed at the margin, and usually botched with purple in the middle. The involucres are very much numerous, greenish or purplish, about 1 millimeter long, and borne on dense, axillary, stalkless or short-stalked clusters or crowded cymes. The capsules are broadly ovoid, about 1.5 millimeters long or less, hairy, and three-angled. | The plant is an annual, hairy herb, usually much - branched from the base - these branches being simple or forked and ascending or spreading - up to 40 centimeters long, and often reddish or purplish. The leaves are opposite, distichous, elliptic-oblong to oblong-lanceolate, 1 to 2.5 centimeters long, toothed at the margin, and usually botched with purple in the middle. The involucres are very much numerous, greenish or purplish, about 1 millimeter long, and borne on dense, axillary, stalkless or short-stalked clusters or crowded cymes. The capsules are broadly ovoid, about 1.5 millimeters long or less, hairy, and three-angled. | ||
According to Power and Browning, Jr., who conducted chemical studies of the plant, from the portion of the alcoholic extract which was soluble in water the following substances were isolated: (1) Gallic acid; (2) quercetin C15H10O7; | According to Power and Browning, Jr., who conducted chemical studies of the plant, from the portion of the alcoholic extract which was soluble in water the following substances were isolated: <br> | ||
(1) Gallic acid; <br>(2) quercetin C15H10O7; <br>(3) a new phenolic substance, C28H18O15. | |||
The aqueous liquid contained, furthermore a considerable quantity of amorphous glucosidic material, together with a laevorotatory sugar which yielded d-phenylglucosazone (m.,p. 218-220°). There were also indications of the presence of an exceedingly small amount of alkaloidal substance, but this did not permit of being further characterized. | The aqueous liquid contained, furthermore a considerable quantity of amorphous glucosidic material, together with a laevorotatory sugar which yielded d-phenylglucosazone (m.,p. 218-220°). There were also indications of the presence of an exceedingly small amount of alkaloidal substance, but this did not permit of being further characterized. | ||
The portion of the alcoholic extract, which was insoluble in water consisted of soft, resinous material, amounting to about 3.2 percent of the weight of the air-dried plant. From this material there were isolated: (4) Triacontane, C30H62, with apparently a little (5) ceryl alcohol, C27H56O; and (6) a new monohydric alcohol, euphosterol, C25H39OH (m.,p. 274-297°), which yielded an acetyl derivative (m., p. 295-297°) and a bromoacetyl derivative (m., p. 183-186°). Euphosterol is evidently closely related to the compounds designated respectively as androsterol, homoandrosterol, taraxasterol and homotaraxasterol, all of which appear to be members of a series of monohydric alcohols represented by the general formula, CnH2n0-10 O. Also present are (7) a phytosterol ( m., p. 132-133°); (8) a phytosteroin (phytosterol glucoside); (9) jambulol, C16H3O4 (OH); (10) melissic acid, C30H60O2; and a mixture of acids which appeared to consist chiefly of palmitic, oleic and linolic acids. | The portion of the alcoholic extract, which was insoluble in water consisted of soft, resinous material, amounting to about 3.2 percent of the weight of the air-dried plant. From this material there were isolated: <br>(4) Triacontane, C30H62, with apparently a little <br>(5) ceryl alcohol, C27H56O; and <br>(6) a new monohydric alcohol, euphosterol, C25H39OH (m.,p. 274-297°), which yielded an acetyl derivative (m., p. 295-297°) and a bromoacetyl derivative (m., p. 183-186°). Euphosterol is evidently closely related to the compounds designated respectively as androsterol, homoandrosterol, taraxasterol and homotaraxasterol, all of which appear to be members of a series of monohydric alcohols represented by the general formula, CnH2n0-10 O. Also present are <br>(7) a phytosterol ( m., p. 132-133°); <br>(8) a phytosteroin (phytosterol glucoside); <br>(9) jambulol, C16H3O4 (OH); <br>(10) melissic acid, C30H60O2; and a mixture of acids which appeared to consist chiefly of palmitic, oleic and linolic acids. | ||
Among the various above-mentioned constituents of Euphorbia pilulifera there are none to which any specific physiological action may be ascribed. Such therapeutic virtues as the plant has been presumed to possess would therefore not appear to depend upon any single substance of a definite chemical character. Dutt remarks that recent chemical research shows that some of the constituents of the plant are similar to those of the jambul (Syzygium cumini) seeds. | Among the various above-mentioned constituents of Euphorbia pilulifera there are none to which any specific physiological action may be ascribed. Such therapeutic virtues as the plant has been presumed to possess would therefore not appear to depend upon any single substance of a definite chemical character. Dutt remarks that recent chemical research shows that some of the constituents of the plant are similar to those of the jambul (Syzygium cumini) seeds. | ||