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Allahābād, India

Singh G.,Allahabad University | Chandra R.,Sam Higginbottom Institute of Agriculture | Kumar C.,The National Academy of science
Proceedings of the National Academy of Sciences India Section B - Biological Sciences | Year: 2016

Value addition of a beverage was carried out by blending mango juice at three concentrations (5, 10 and 15 %) with skimmed milk and three concentrations (3, 3.5 and 4.0 %) of vegetable oil with 80 % rice bran oil and 20 % Carthamus tinctorius L. oil (Saffola Gold [InlineMediaObject not available: see fulltext.]). Sensory evaluation showed significant differences in flavour and taste, consistency and overall acceptability amongst the various treatment combinations. It showed maximum overall acceptability (7.55/9) among all tested combinations. Beverage prepared from 3.5 % vegetable oil and 15 % pulp was observed superior in terms of nutritional quality showing fats (2.9 %), proteins (2.83 %), carbohydrate (12.16 %) and total solids (18.73 %). Total sugar, ascorbic acid and acidity decreased while total solids and pH increased as the storage period of beverage was increased from 0–30 days, however the changes were observed lesser at low temperature than at room temperature. Addition of vegetable oil ≥3.5 % produced minimum total plate count (≤1.8 cfu/mL) and negative test for coliform. The beverage products were found microbiologically safe during one month of storage at low temperature (around 4 °C). The value added filled milk beverage prepared with 80 % rice bran oil, 20 % safflower seed oil and 15 % mango pulp was prescribed for the best use for a week. © 2014, The National Academy of Sciences, India.

Mani D.,Allahabad University | Kumar C.,Allahabad University | Kumar C.,The National Academy of science
International Journal of Environmental Science and Technology | Year: 2014

The ability of heavy metals bioaccumulation to cause toxicity in biological systems-human, animals, microorganisms and plants-is an important issue for environmental health and safety. Recent biotechnological approaches for bioremediation include biomineralization (mineral synthesis by living organisms or biomaterials), biosorption (dead microbial and renewable agricultural biomass), phytostabilization (immobilization in plant roots), hyperaccumulation (exceptional metal concentration in plant shoots), dendroremediation (growing trees in polluted soils), biostimulation (stimulating living microbial population), rhizoremediation (plant and microbe), mycoremediation (stimulating living fungi/mycelial ultrafiltration), cyanoremediation (stimulating algal mass for remediation) and genoremediation (stimulating gene for remediation process). The adequate restoration of the environment requires cooperation, integration and assimilation of such biotechnological advances along with traditional and ethical wisdom to unravel the mystery of nature in the emerging field of bioremediation. This review highlights better understanding of the problems associated with the toxicity of heavy metals to the contaminated ecosystems and their viable, sustainable and eco-friendly bioremediation technologies, especially the mechanisms of phytoremediation of heavy metals along with some case studies in India and abroad. However, the challenges (biosafety assessment and genetic pollution) involved in adopting the new initiatives for cleaning-up the heavy metals-contaminated ecosystems from both ecological and greener point of view must not be ignored. © 2013 Islamic Azad University (IAU).

Rizvi A.F.,The Institute of Applied science | Singh K.P.,Allahabad University | Kumar N.,The National Academy of science
National Academy Science Letters | Year: 2015

Based on the length frequency data growth, mortality, and population parameters of Sciaena coitor from the scoop net (mesh size 0.5–2 cm) catches from middle stretch of Ganga at Allahabad were estimated. The length-weight relationship for pooled data was log W = 76.39315 L2.48487. The asymptotic length (L∞) and growth coefficient (K) were estimated to be 198 mm, and 0.868 year−1, respectively. The total, fishing and natural mortality coefficients were estimated as 3.31, 1.55 and 1.76 respectively while the ‘E’ 0.468 year−1. The recruitment was continuous with one peak per year. The Lc50 was obtained at 115 mm. Yield isopleth diagram generated, give optimum yield at E of 0.4 and Lc/L∞ = 0.58. © 2015, The National Academy of Sciences, India.

Mani D.,Allahabad University | Kumar C.,Allahabad University | Kumar C.,The National Academy of science | Patel N.K.,Allahabad University | Sivakumar D.,HIGH-TECH
International Journal of Environmental Science and Technology | Year: 2015

The natural potential of Chrysanthemum indicum L. for the clean-up of lead-contaminated soil was investigated under pot experiment. Maximum applied lead (at 50 mg/kg) caused significant reduction in the plant height (31.71 %), root length (31.15 %) and dry biomass (32.71 and 41.25 % for root and shoot, respectively); however, minimum applied lead (at 10 mg/kg) promoted the growth of plants to some extent, over the respective control pots. Lead concentration in the tissues followed the order as root>shoot>flower. The combinatorial treatment T16 (50 mg/kg Pb, 0.8 g/kg elemental sulphur and 6 g/kg vermicompost) caused maximum concentration of lead in root, shoot and flower up to the extent of 43.58, 22.45 and 9.62 mg/kg, respectively, leading to the maximum bioaccumulation factor (0.38). However, the combinatorial treatment T4 (sulphur and vermicompost) showed maximum translocation factor (0.63) and T12 (20 mg/kg lead, 0.8 g/kg elemental sulphur and 6 g/kg vermicompost) produced maximum remediation ratio (0.153). The combinatorial treatments under lead-contaminated (10–50 mg/kg) soils showed higher remediation efficiency indicating enhanced clean-up of the aforesaid soils through C. indicum L. Applied lead (>20 mg/kg) altered the chlorophyll-a, chlorophyll-b and carotenoid contents of the plants. Hence, the authors conclude that a non-edible ornamental plant, C. indicum L., is preferred to be safely grown in moderately lead-contaminated soils along with application of elemental sulphur and vermicompost, which will boost the photosynthetic pigments of the plants, leading to enhanced clean-up of the lead-contaminated soil. © 2013, Islamic Azad University (IAU).

Mani D.,Sheila Dhar Institute of Soil Science | Kumar C.,The National Academy of science | Patel N.K.,Sheila Dhar Institute of Soil Science
International Journal of Phytoremediation | Year: 2015

The ability of hyperaccumulator oilcake manure as compared to chelates was investigated by growing Calendula officinalis L for phytoremediation of cadmium and lead contaminated alluvial soil. The combinatorial treatment T6 [2.5 g kg−1oilcake manure + 5 mmol kg−1 EDDS] caused maximum cadmium accumulation in root, shoot and flower up to 5.46, 4.74 and 1.37 mg kg−1and lead accumulation up to 16.11, 13.44 and 3.17 mg kg−1, respectively at Naini dump site, Allahabad (S3). The treatment showed maximum remediation efficiency for Cd (RR = 0.676%) and Pb (RR = 0.202%) at Mumfordganj contaminated site (S2). However, the above parameters were also observed at par with the treatment T5 [2.5 g kg−1oilcake manure +2 g kg−1 humic acid]. Applied EDDS altered chlorophyll–a, chlorophyll–b, and carotene contents of plants while application of oilcake manure enhanced their contents in plant by 3.73–8.65%, 5.81–17.65%, and 7.04–17.19%, respectively. The authors conclude that Calendula officinalis L has potential to be safely grown in moderately Cd and Pb-contaminated soils and application of hyperaccumulator oilcake manure boosts the photosynthetic pigments of the plant, leading to enhanced clean-up of the cadmium and lead-contaminated soils. Hence, the hyperaccumulator oilcake manure should be preferred over chelates for sustainable phytoremediation through soil-plant rhizospheric process. © 2015, Copyright © Taylor & Francis Group, LLC.

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