Total Phenolics,Tannins and Antioxidant Activity in Twenty Different Apple Cultivars Growing in West Himalaya,India

The present study evaluated phenolics and antioxidant activities in fully ripened fruits of 20 different apple cultivars e.g., Royal Delicious, Fanny, Gale Gala, Esopus Spitzenburg, King David, Winter Banana, Buckinghum, Super Chief, Breven, Red Fuji, Organ Spur, Tompking County, Red Gold, Golden Spur, Vance Delicious, Red Delicious, Macintosh, Rymer, Bhura Delicious, and Richa Red growing at different locations/elevations of Uttarakhand, West Himalaya, India. Total phenolics and tannins varied significantly among cultivars and the maximum content was recorded in Bhura Delicious (phenolics—3.77 mg GAE/g fw; tannins—16.47 mg TAE/g fw) as compared to others. Antioxidant activity using different in vitro assays showed highest activity in Bhura Delicious and lowest in Esopus Spitzenburg. A significant (p < 0.001) positive relationship was found between total phenolics and ABTS (r = 0.816), FRAP (r = 0.797) and DPPH (r = 0.862) assays. Phenolics and antioxidant activity exhibited significantly (p < 0.05) higher content in the peel as compared to whole fruit and flesh portion. Based on the results, it is concluded that Bhura Delicious is one of the promising sources of phenolics and antioxidant activity and, therefore, recommended for large scale plantation to harness its potential.

     

Total Phenolic Content and Antioxidant Activity of Meconopsis aculeata Royle: A High Value Medicinal Herb of Himalaya

Proceedings of the National Academy of Sciences, India Section B: Biological Sciences - Meconopsis aculeata Royle (Family: Papaveraceae) is an important medicinal herb of the Himalayan region, used...     

Antioxidant Activity and Polyphenolics of Fragaria nubicola: A Wild Edible Fruit Species of Himalaya

Proceedings of the National Academy of Sciences, India Section B: Biological Sciences - The wild edible fruits of Fragaria nubicola (Family: Rosaceae) proved a prominent source of antioxidants and...     

Hydrogen Peroxide Induced Deoxyribonucleic Acid Damage Preventive Activity of Selected <Emphasis Type="Italic">Valeriana</Emphasis> Species from West Himalaya

The polyphenols, antioxidant activity and deoxyribonucleic acid (DNA) damage preventive efficiency of 3 species Valeriana jatamansi, V. hardwickii and V. himalayana were investigated. V. himalayana exhibited significantly higher total phenolics and V. jatamansi showed significantly higher flavonoids and total tannins. Valerenic acid was significantly higher in V. himalayana (1.6 %) in root portion as compared to that of V. jatamansi (0.75 %). Significantly higher antioxidant activity of 2,2′-azinobis benzyl ethyl thiazole 6-sulphonic acid was observed as 4.65 mM AAE/100g in aerial portion and 5.73 mM AAE/100g in root portion; 2,2-diphenyl-1-picrylhydrzyl was 8.87 mM AAE/100g in aerial portion and 17.53 mM AAE/100g in root portion; and ferric reducing antioxidant power was 4.48 mM AAE/100g in aerial portion and 7.28 mM AAE/100g in root portion was higher in V. himalayana as compared to that of V. jatamansi and V. hardwickii. DNA damage preventive efficiency revealed variation in these species. V. himalayana exhibited better ability to prevent Fenton reagent induced DNA damage (97.97 %) as compared to the other two species at 100 μg/μl of aqueous extract. Based on the results it is recommended that as V. himalayana exhibited higher phytochemicals, antioxidant property and DNA damage preventive efficiency, therefore, more systematic investigation and conservation of this species is suggested to meet the increasing industrial demand. As the species is threatened in its natural habitat the other two species i.e., V. hardwickii and V. jatamansi can be promoted as an alternative source for phenolics and antioxidants.     

Diversity and Distribution Pattern of Orchids Along an Altitudinal Gradient: Pindari Valley,West Himalaya

Proceedings of the National Academy of Sciences, India Section B: Biological Sciences - The present study for the first time explored the diversity and distribution of terrestrial orchids in...     

HPTLC Fingerprinting of Cultivated Picrorhiza kurrooa Accessions in Uttarakhand,Western Himalaya

Proceedings of the National Academy of Sciences, India Section B: Biological Sciences - Picrorhiza kurrooa Royle ex Benth (Kutki or Kadvi) belonging to family Plantaginaceae is a valuable...