Life Sciences

Study of thermal stability of beta-glucosidase from the land crab digestive juice (Cardisoma armatum): kinetic and thermodynamic analysis

The thermal stability of beta-glucosidase from the land crab digestive juice (Cardisoma armatum) was investigated by studying the effect of heat treatment over a range of 60 to 75 °C. Thermal inactivation of this enzyme, evaluated by loss in activity, was apparently followed by first-order kinetics with k-values comprised between 0.0049 to 0.0391 min-1. D and k-values decreased and increased, respectively, with increasing temperature, indicating faster inactivation of beta-glucosidase at higher temperatures. Ea and Z-values were estimated to 172.98 kJ mol-1 and 12.80 °C respectively.

In vitro nematicidal activity of different seaweed extracts against Meloidogyne javanica (Tylenchida: Heteroderidae)

The different types of seaweeds viz., Caulerpa racemosa, Caulerpa scalpelliformis, Ulva fasciata, Padina tetrastromatica, Stoechospermum polypodioides, Sargassum wightii, Cheilosporum spectabile and Gracillaria edulis were collected and processed for the extraction. The effect of methanol extract of different seaweeds was studied on the larvae of Meloidogyne javanica at different exposure of time (24 hrs, 48 hrs, 72 hrs). The test seaweed extract were taken into two different concentrations (2 mg/ml, 4 mg/ml).

Evaluating the normalized difference vegetation index using landsat data by envi in Salem District, Tamilnadu, India

The present study provides the Normalized Difference Vegetation Index of the study area. The main aim of this study is to evaluate the vegetation index using Lands at image. NDVI map prepared by using ENVI Image processing software. The study area NDVI map gives the Maximum value of 0.7 and Minimum Value of-0.06. The result depicts following types of vegetation index like Water bodies, Barren and Rocks, Shrub and Grass land, Moderate Green, Very green area, dense forests, Temperature and Tropical Rainforests.

A comparative study of zeolite loaded copper oxide and iron oxide nanoparticles and its effect on antibacterial and antifungal activity against six bacterial and three fungal isolates o

Nanomaterials are well suited for water purification, disinfection and wastewater treatment applications. Antimicrobial nanoparticles can disinfect polluted water without formation of harmful disinfection by-products. Hence the present study is focused on the comparison of Zeolite loaded Copper oxide and Iron oxide nanoparticles and its effect on antibacterial and antifungal activity against bacteria and fungi isolated from secondary effluent.

Comparison and modeling of adsorption isotherms of tropical vegetables: plantain (musa paradisiaca aab var. corne 1), okra (abelmoschus esculentus var. tomi) and bell pepper (Capsicum annuum var. P

Plantain (Musa Paradisiaca AAB var. Corne 1), okra (Abelmoschus Esculentus var. Tomi) and bell pepper (Capsicum Annuum var. PM17/04A) contribute to food security in developing countries such as Côte d'Ivoire. These foods, which have high moisture content, can be kept only within a few days after harvest. Processing these products by drying and changing into flour is one solution for easy handling and long-term storage. Moisture adsorption isotherm information is clearly needed for processing of plantain, okra and bell pepper flour.

Characterization and antimicrobial activity of silver nanoparticles synthesized by rice straw utilizing bacterium (Lysinibacillus fusiformis)

Use of microorganisms in synthesis of silver nanoparticles (AgNPs) is coast effective and eco-friendly and easily scaled up for large scale synthesis. The present investigation reports a simple and environmental friendly method for biological synthesis of silver nanoparticles (AgNps) by Lysinibacillus fusiformis strain AUMC b-160 which was isolated from soil sample treated with manure and showed ability to utilize wheat and rice straws as a sole carbon source.

Abundance and habitat preference of the near-threatened endemic abyssinian long-claw (Macronyx flavicollis in the northern montane grasslands of the bale mountains, Ethiopia

Abyssinian long-claw (Macronyx flavicollis Rüppell, 1840) is a near-threatened bird species endemic to the highlands of Ethiopia. Little is known of the species demography, biology and ecology. This study was conducted in the northern montane grasslands of the Bale Mountains, southeast in Ethiopia, to determine abundance, habitat preferences and potential threats to Abyssinian long-claws.

Impact of stress and diet in achieving weight loss

Objective: To study the effect of pre- intervention stress scores and self-reported habitual dietary intake with the success in achieving weight reduction measured as change in anthropometric indices and body composition variables in women on a comprehensive weight reduction program. Methods: Women in the age group of 20-30 years, visiting a nutrition consultation clinic in Jaipur city with the aim of weight loss and willing to participate in the study were included. Fifty six women enrolled in the study. Each participant was assessed for anthropometric indices and dietary intake.

Influence of poultry manure application on vitamin content, proximate and chemical properties of moringa (Moringa oleifera lam) leaves

The study was carried out in the Department of Crop Science, Faculty of Agriculture, University of Nigeria Nsukka, to determine the influence of poultry manure application on the vitamin content, proximate and chemical properties of leaves of Moringa oleifera plants. The levels of poultry manure used were 0 tonne/ha, 5 tonnes/ha and 10 tonnes/ha respectively. The moringa seeds used were collected from three locations of Nigeria i.e Nsukka (Enugu State), Dutse (Jigawa State) and Jos (Plateau State).

Influence of poultry manure application on anti-nutrient compositions of moringa (Moringa oleifera lam) leaves

The study was carried out to determine the influence of poultry manure application on anti-nutrient compositions of old and succulent leaves of Moringa oleifera plants. Three levels of poultry manure i.e. O tonne/ha, 5 tonnes/ha and 10 tonnes/ha were used for treatment. The moringa seeds used were collected from three locations of Nigeria i.e Nsukka (Enugu State), Dutse (Jigawa State) and Jos (Plateau State). The experiment was carried out on the field in the Department of Crop Science, University of Nigeria, Nsukka.