نتایج جستجو برای: microbial indices

تعداد نتایج: 194448  

Journal: :Environmental science and pollution research international 2015
M C Gagliano C M Braguglia A Gallipoli A Gianico S Rossetti

Anaerobic digestion (AD) is one of the few sustainable technologies that both produce energy and treat waste streams. Driven by a complex and diverse community of microbes, AD may be affected by different factors, many of which also influence the composition and activity of the microbial community. In this study, the biodiversity of microbial populations in innovative mesophilic/thermophilic te...

Journal: :پژوهش های علوم و صنایع غذایی ایران 0
b. mohammadzadeh m. rezaei

in this research green tea extract was prepared with water and then fishes in whole and gutted fish form was dipped in solutions of green tea extract (600 ppm) for 90 minutes and then were icing. during storage period (16 days), spoilage oxidation (pv, ffa, and tba), spoilage microbial indices (tvb-n, tvc, pvc) and sensory assessment with interval of 4 days were measured and compared with contr...

2014
Yuanyuan Li Hongyu Wen Longqian Chen Tingting Yin

The growing concern about the effectiveness of reclamation strategies has motivated the evaluation of soil properties following reclamation. Recovery of belowground microbial community is important for reclamation success, however, the response of soil bacterial communities to reclamation has not been well understood. In this study, PCR-based 454 pyrosequencing was applied to compare bacterial ...

Journal: :Journal of environmental monitoring : JEM 2008
Astrid Vivas Beatriz Moreno Coral del Val Cristina Macci Grazia Masciandaro Emilio Benitez

The aim of this study was to characterize soils contaminated by different levels of heavy metals and hydrocarbons (Madonna Dell'Acqua, Pisa, Italy). The soils were chemically and biochemically analysed by measuring the standard chemical properties and some enzyme activities related to microbial activity (dehydrogenase activity) and the soil carbon cycle (total and extracellular beta-glucosidase...

2001
K. Rathbone J. Fuchs K. Anderson R. Karthikeyan N. Nurhidayat

Polycyclic aromatic hydrocarbon (PAH)-contaminated soils are of concern to the Environmental Protection Agency (EPA) due to their mutagenic and carcinogenic nature. Bioremediation of PAHs is aimed at increasing the overall rate of natural degradation. Microbial bioremediation promotes processes by which microorganisms can take up and/or degrade organic molecules and their metabolites. Microorga...

2011
Chioma Blaise Chikere Gideon Chijioke Okpokwasili Blaise Ositadinma Chikere

Bioremediation of hydrocarbon pollutants is advantageous owing to the cost-effectiveness of the technology and the ubiquity of hydrocarbon-degrading microorganisms in the soil. Soil microbial diversity is affected by hydrocarbon perturbation, thus selective enrichment of hydrocarbon utilizers occurs. Hydrocarbons interact with the soil matrix and soil microorganisms determining the fate of the ...

2016
Andrea Obersteiner Stefanie Gilles Ulrike Frank Isabelle Beck Franziska Häring Dietrich Ernst Michael Rothballer Anton Hartmann Claudia Traidl-Hoffmann Michael Schmid Ulrich Melcher

Pollen allergies have been rapidly increasing over the last decades. Many allergenic proteins and non-allergenic adjuvant compounds of pollen are involved in the plant defense against environmental or microbial stress. The first aim of this study was to analyze and compare the colonizing microbes on allergenic pollen. The second aim was to investigate detectable correlations between pollen micr...

2016
Sabrina Carvalho Wim H. van der Putten W. H. G. Hol

Reliable information on soil status and crop health is crucial for detecting and mitigating disasters like pollution or minimizing impact from soil-borne diseases. While infestation with an aggressive soil pathogen can be detected via reflected light spectra, it is unknown to what extent hyperspectral reflectance could be used to detect overall changes in soil biodiversity. We tested the hypoth...

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