Volume: 36 Issue: 2
Phenolic contents and antioxidant activity of Aloe strains grown in middle hill climatic conditions of western Himalayas
Year: 2014, Page: 38-43, Doi: https://doi.org/10.62029/jmaps.v36i2.Meena
Received: Feb. 12, 2014 Accepted: June 18, 2014 Published: July 1, 2014
The present study was carried out to evaluate the antioxidant activities, total phenolics, tannins and ascorbic acid content in dried powder of 8 Aloe vera strains collected from different area of India. The antioxidant property was evaluated by measuring scavenging effect of 2, 2-diphenyl-1-picryhydrazyl (DPPH) radical. The total phenolics, tannins and ascorbic acid content in extracts of different strains were also determined to correlate with their differential antioxidant activity. Whole leaf powder of different strains exhibited better antioxidant activity as compare to gel powder. The maximum antioxidant activity (73.88 %) was recorded in whole leaf powder of strain collected form Pithoragarh Ghati area. While maximum phenolics (0.70 %) and tannins (0.78 %) were found in dried powder of Aloe vera strain collected from Haldwani area. Higher ascorbic acid content (3.652mg/100g) was found in whole leaf powder of A. vera strain collected form Pithoragarh Ghati area. The antioxidant activity in strains is mainly because of the presence of α-tocopherol (vit. E), carotenoids, ascorbic acid, flavonoids etc rather than phenolics and tannins contents.
Keywords: Aloe vera, Antioxidant Activity, Ascorbic acid, DPPH, Phenolics, Tannins
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© Central Institute of Medicinal and Aromatic Plants (CSIR-CIMAP), Lucknow (India)
Harsahay Meena, HK Pandey, Mohd Nasim. 2014. Phenolic contents and antioxidant activity of Aloe strains grown in middle hill climatic conditions of western Himalayas. J Med Aromat Plant Sci 36: 38-43.
