Department Of Environmental Science And Technology

Permanent URI for this communityhttps://kr.cup.edu.in/handle/32116/84

Browse

Author: search.filters.author.Atri, N.S.Subject: search.filters.subject.India

Search Results

Now showing 1 - 2 of 2
  • No Thumbnail Available
    Item
    Taxonomical establishment and compositional studies of a new cordyceps (ascomycetes) species from the northwest himalayas (India)
    (Begell House Inc., 2016) Sharma, S.K.; Gautam, N.; Atri, N.S.; Dhancholia, S.
    During a frequent survey in the northwest Indian Himalayan region, a new species-Cordyceps macleodganensis-was encountered. This species is described on the basis of its macromorphological features, microscopic details, and internal transcribed spacer sequencing. This species showed only 90% resemblance to Cordyceps gracilis. The chemical composition of the mycelium showed protein (14.95 ? 0.2%) and carbohydrates (59.21 ? 3.8%) as the major nutrients. This species showed appreciable amounts of ?-carotene, lycopene, phenolic compounds, polysaccharides, and flavonoids. Mycelial culture of this species showed higher effectiveness for ferric-reducing antioxidant power, DPPH radical scavenging activity, ferrous ion-chelating activity, and scavenging ability on superoxide anion-derived radicals, calculated by half-maximal effective concentrations. ? 2016 Begell House, Inc.
  • No Thumbnail Available
    Item
    Evaluation of mycelial nutrients, bioactive compounds, and antioxidants of five Himalayan entomopathogenic ascomyceteous fungi from India
    (Begell House Inc., 2015) Sharma, S.K.; Gautam, N.; Atri, N.S.
    In this study, using standard methods, mycelial nutrients, bioactive compounds, and antioxidants were analyzed for the first time for five fungal species: Isaria sinclairii (Berk.) Lloyd, I. tenuipes Peck, I. japonica Yasuda, I. farinosa (Holmsk) Fr. and Cordyceps tuberculata (Lebert) Maire. All of these species were low in fat content and rich in protein, fiber, ash, and carbohydrates. Mineral elements (Fe, Mg, Cu, Mn, and Ca) were detected in appreciable amounts. All three types of fatty acids (saturated, monounsaturated, and polyunsaturated) as well as bioactive compounds (ascorbic acid, ?-carotene, lycopene, phenolic compounds, and polysaccharides) were detected for each species. The investigated species showed high ferric-reducing antioxidant power as well as 2,2-diphenyl-1-picrylhydrazyl radical scavenging activity. Although differences were observed in the values of each species, each species showed richness in one or more components. ? 2015 Begell House, Inc.