Effect of climate change on phytochemical diversity, total phenolic content and in vitro antioxidant activity of Aloe vera (L.) Burm.f.

Table 2 Qualitative analyses of the phytochemical components of Aloe vera extracts

Phytochemical analysis			Collection sites
Chemical constituents	Test reagent	Observation	1.	2.	3.	4.	5.	6.	7.	8.	9.	10.	11.	12.
Alkaloids	Mayer’s reagent	White ppt	+++	+++	+++	+++	++	++	++	++	++	++	+	++
Glycosides	10% Lead acetate solution	White ppt	+++	++	+++	++	++	+++	++	+++	+++	++	++	++
Reducing sugar	Benedict’s solution	Reddish brown ppt	++	++	++	+++	++	++	+++	++	++	+++	++	+++
Phenolic compounds	Ferric chloride solution	Green colour	+++	+++	+++	+++	++	++	++	++	++	++	++	++
Steroids and terpenoids	Acetic anhydride and conc: H₂SO₄	Pink colour	++	++	+	++	++	+	+	+	++	+	+++	++
Flavonoids	Benzene FeCl₃	Yellow ppt	+++	+++	+++	+++	++	++	+++	++	++	++	++	++
Tannins	FeCl₃ and 10% lead acetate	White ppt	++	++	++	++	++	+	++	++	++	+	++	+
Saponin glycosides	Distilled water	Frothing take place	+++	+++	++	++	++	++	++	++	++	++	++	++

ISSN: 1756-0500