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. 2014 Dec 31;2014:539807. doi: 10.1155/2014/539807

Table 1.

Phytochemical constituents identified in methanol extract of M. repandus leaf (MLM).

Phytochemical Name of the tests Observed changes Result
Alkaloids Mayer's test Creamy white precipitate
Hager's test Yellow crystalline precipitate +
Wagner's test Brown or deep brown precipitate
Dragendorff's test Orange or orange-red precipitate
Tannic acid test Buff color precipitate
Carbohydrates Molisch's test A red or reddish violet ring is formed at the junction of two layers and on shaking a dark purple solution is formed +
Barfoed's test (general test for monosaccharides) Red precipitate
Fehling's test A red or brick-red precipitate
Benedict's test +
Test for combined reducing sugar A brick-red precipitate
Glycosides General test Yellow color
Bromine water test yellow precipitate +
Test for glucoside Production of brick-red precipitation (carried out with the hydrolyzed extract)
Flavonoids Alkaline reagent test Red color +/−
Shinoda test (magnesium hydrochloride reduction test) Green to blue color +
Zinc hydrochloride reduction test Red color after few minutes
Saponins Frothing test Formation of stable foam +
Steroids Libermann-Burchard's test Greenish color
Tannins Lead acetate test A yellow or red precipitate +
Ferric chloride test Blue green color
Alkaline reagent test Yellow to red precipitate +
Terpenoids Salkowski test Yellow color appears at the lower layer

(+) = presence; (−) = absence; (+/−) = presence or absence not ascertained.