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International Journal of Pure & Applied Bioscience (IJPAB)
Year : 2017, Volume : 5, Issue : 5
First page : (311) Last page : (317)
Article doi: http://dx.doi.org/10.18782/2320-7051.2701

Assessment of Biochemical and Nutraceutical Components in Date Palm (Phoenix dactylifera L.) Cultivars

Muralidhara B. M.1*, Singh R. S.2, Hare Krishna2, Bhargava R.2 and Veena G. L.1
1Scientist, Division of Crop Improvement and Biotechnology, ICAR- Central Institute for Subtropical Horticulture, Rehmankhera, Lucknow -226 101
2Principal Scientist, ICAR- Central Institute for Arid Horticulture, Bikaner, Rajasthan-334 006
*Corresponding Author E-mail: muralidhara.bm@gmail.com
Received: 18.03.2017  |  Revised: 29.04.2017   |  Accepted: 1.05.2017  

 ABSTRACT

Present study was conducted to know the variability of antioxidant activity and its components among different cultivars at two different fruit development stages i.e. gandora and doka stage. The total antioxidant activity, total phenols, total flavonoids, total sugars and calcium content was increased from gandora stage to doka stage, while a decreasing trend was observed for acidity, proteins and tannin contents. The highest antioxidant activity (1.88 ┬ÁmolTrolox/100g) at doka stage was recorded in the cultivar Zahidi, which is at par with the cultivar Halawy (1.84 ┬ÁmolTrolox/100g) and the lowest antioxidant activity was recorded in the cultivar Chip Chap (1.24 ┬ÁmolTrolox/100g). The maximum total phenols (158.98 mg GAE/100g) and flavonoid (86.0 mg QE/100g) contents were noticed in the cultivar Zahidi and minimum (84.31 mg GAE/100g and 50 mg QE/100g) was in Chip Chap, respectively. The cultivar Zahidi recorded the highest total sugars (43.14 %) and calcium (4.65%) at doka stage. The maximum soluble protein (6.31 %) and tannin (1.92 %) was noticed cultivar Chip Chap and Dayari, respectively at gandora stage. Results revealed that the total antioxidant activity mainly depends on the amount of total phenol content present in the fruits at both gandora (R2=0.567) and doka (R2=0.592) stage. The variation in the nutraceutical attributes primarily influenced by the type of cultivars and fruit development stages, meanwhile it also reveals that the doka stage of harvesting is highly suitable for consumption due to its higher level of total antioxidant activity, total phenols and total flavonoid content, regardless of cultivar.

Key words: Date palm, Antioxidant activity, Phenolics, Gandora, Doka.

Full Text : PDF; Journal doi : http://dx.doi.org/10.18782

Cite this article: Muralidhara, B.M., Singh, R.S., Krishna, H., Bhargava, R. and Veena, G.L., Assessment of Biochemical and Nutraceutical Components in Date Palm (Phoenix dactylifera L.) Cultivars, Int. J. Pure App. Biosci.5(5): 311-317 (2017). doi: http://dx.doi.org/10.18782/2320-7051.2701