Browsing by Author "Pratima Raj"

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Antioxidant efficacy and curcumin content of turmeric (Curcuma-longa L.) flower
(Publishers, 2016) Ajay Kumar; Monika Singh; Prem Pratap Singh; Sandeep Kumar Singh; Pratima Raj; Kapil D. Pandey
Objective: The objective of the work is to evaluate the curcumin content, antioxidant activity and total phenol content of Curcuma longa flower. Methods: Curcumin content were analyzed through HPLC-PDA analysis. The antioxidant activity of the flower was determined by free radical scavenging activity of DPPH, and the total phenol content was determined using the Folin-Ciocalteu reagent through standard protocols.Results: The flowers had found about (3.87±0.5μg/g) of curcumin during HPLC-PDA analysis. The antioxidant activity (DPPH free radicals scavenging activity IC50) of the turmeric flower (3.2 μg/ml) was found near to the standard ascorbic acid (2.6 μg/ml). In addition to these, a significant amount of phenolics (210.45±1.32 mg GAE/100 g) was present in the turmeric flowers. Conclusion: The flowers of curcuma longa contains a significant amount of curcumin, antioxidant activity and phenol contents. © 2016 The Authors.
Interaction of turmeric (Curcuma longa L.) with beneficial microbes: a review
(Springer Verlag, 2017) Ajay Kumar; Amit Kishore Singh; Manish Singh Kaushik; Surabhi Kirti Mishra; Pratima Raj; P.K. Singh; K.D. Pandey
Curcuma longa L., commonly known as turmeric, is a rhizomatous herb of the family Zingiberaceae. It is mostly used as a spice, a coloring agent and broadly used in traditional medicine such as Ayurveda, Unani, etc., Turmeric rhizomes interact with a large numbers of rhizosphere-associated microbial species, and some enter the plant tissue and act as endophytes. Both rhizospheric and endophytic species are directly or indirectly involved in growth promotion and disease management in plants and also play an important role in the modulation of morphological growth, secondary metabolite production, curcumin content, antioxidant properties, etc. The present review focuses on the rhizobacterial and endophytic bacterial and fungal populations associated with the turmeric. © 2017, Springer-Verlag GmbH Germany.