What is the ideal humidity for petroleum-products degradation by through microbial processes ?
Best insight from top research papers
The ideal humidity for petroleum-products degradation through microbial processes varies depending on the specific conditions and microorganisms involved. In one study, it was found that the humidity had a greater effect on microbial activity and contaminant degradation than the temperature . Another study suggested that a humidity range of 30-40% was maintained during the degradation process . Additionally, another study mentioned that a humidity of 50% to 60% was optimal for the degradation of petroleum contaminants by certain microorganisms . Therefore, it can be concluded that the ideal humidity for petroleum-products degradation by microbial processes is likely to be within the range of 30-60%, depending on the specific microorganisms and conditions involved.
Answers from top 5 papers
More filters
| Papers (5) | Insight |
|---|---|
| The provided paper does not mention the ideal humidity for petroleum-products degradation through microbial processes. The paper is about a microbial powder for petroleum degradation. | |
20 May 2011 2 Citations | The ideal humidity for petroleum-products degradation through microbial processes is 50-60%. |
| The paper states that humidity has a greater effect on microbial activity and contaminant degradation than temperature, but it does not specify an ideal humidity for petroleum-products degradation. | |
| The ideal humidity for petroleum-products degradation through microbial processes is maintained at 30-40% by adding water. | |
| The provided paper does not mention the ideal humidity for petroleum-products degradation through microbial processes. |
Related Questions
Do plants with less microorganism have higher moisture %?5 answersPlants with fewer microorganisms tend to have higher soil moisture content. The presence of plants influences the soil microbial community, with leguminous plants increasing microbial biomass compared to grasses. In planted soil, microbial biomass carbon and nitrogen were higher at lower water content levels, indicating that soil microbes can maintain higher respiration despite low water content. Additionally, the effect of low water content on soil microbes is exacerbated by reduced plant growth and carbon input, even after soil rewetting. Overall, the interaction between plants and soil moisture content plays a crucial role in shaping the microbial community structure and nutrient availability in the soil, highlighting the intricate relationship between plants, microorganisms, and soil moisture levels.
How does soil pH impact the microbial activity involved in petroleumbiodegradation processes?5 answersSoil pH plays a significant role in the microbial activity involved in petroleum biodegradation processes. Different studies have shown that the pH of the soil can influence the composition and abundance of microbial communities involved in the degradation of petroleum hydrocarbons (PHs). For example, in acidic soils, the biodegradation of petroleum contaminants may be inhibited, resulting in lower degradation rates. On the other hand, microbial communities enriched from neutral or alkaline soils have been found to have a higher capacity for the degradation of petroleum hydrocarbons. Additionally, soil pH can also affect the metabolic genes and pathways involved in the bioconversion of crude oil contaminants by the indigenous microbial community. Therefore, it is important to consider the pH of the soil when designing bioremediation strategies for petroleum-contaminated sites.
How can fungi grow in petroleum?5 answersFungi can grow in petroleum because they have the ability to utilize petroleum hydrocarbons as a nutrient source. This was observed in several studies. Usman et al. found that fungi isolated from heavily petroleum-polluted soil were able to utilize BTEX (benzene, toluene, ethylbenzene, and xylene) as the sole carbon source for growth. Essabri et al. identified fungal strains, including Aspergillus niger, Penicillium ochrochloron, and Trichodema viride, that were able to grow on petroleum hydrocarbon and degrade it. Ameen et al. recovered fungal isolates from polluted sites and found that some of them were able to grow in association with engine oil as the sole carbon source, leading to the degradation of petroleum compounds. Babu and Sarma discussed the potential of fungi, such as Gliocladium roseum, to produce volatile organic compounds (VOCs) similar to those found in petroleum diesel, suggesting that fungi can produce hydrocarbons that resemble petroleum fuels. Mathur and Vyas isolated oil-eating fungi from petroleum-contaminated soil and found that these fungi were able to utilize crude oil as a carbon source for growth.
How can fungi and bacteria be used to biodegrade oil spills?5 answersFungi and bacteria can be used to biodegrade oil spills through the process of bioremediation. Bioremediation techniques involve the use of microorganisms to degrade and remove contaminants from the environment. Several studies have shown the effectiveness of using bacteria and fungi in the biodegradation of petroleum hydrocarbons. Bacteria, such as autochthonous bacterial consortia, have been used for bioaugmentation, where they are added to the contaminated site to enhance the degradation process. Fungi, such as Pleurotus ostreatus, have also been used for bioaugmentation and have shown synergistic effects when combined with other organisms, such as plants. These microorganisms have the ability to degrade different hydrocarbons and release biosurfactants and other biopolymers that aid in the degradation process. The use of bacteria and fungi in bioremediation offers a cost-effective and environmentally friendly approach to treating oil spills and reducing their impact on the environment.
How low relative humidity influences the viability of bacteria?5 answersLow relative humidity has been found to have a significant impact on the viability of bacteria. Studies have shown that as the humidity decreases, bacterial cells undergo changes in morphology and growth patterns. Gram-positive cocci increase in cell size and staphylococcal species start growing in tetrad/cubical formations instead of their normal grape-like structures. Gram-negative rods display wave-like patterns and become increasingly filamentous at low humidity. The Gram-positive bacterium Bacillus subtilis becomes shorter, curved, and eventually almost coccoid, and starts to sporulate at low humidity. The effect of low humidity on bacterial cells is more pronounced in Gram-negative bacteria, such as Escherichia coli, which experience increased roughness and stiffness parameters. The viability of airborne bacteria is also affected by low humidity, with a high rate of death observed during the first 0.5 second of storage. Overall, low relative humidity has been shown to have detrimental effects on the viability and morphology of bacteria.
What humidity for saccharomyces cerevisiae?4 answersThe optimal humidity for Saccharomyces cerevisiae is not mentioned in the abstracts provided.