Rice straw, an agricultural waste product generated in huge quantities worldwide, is utilized to remediate diesel pollution as it possesses excellent characteristics a natural sorbent. This study aimed optimize factors that significantly influence the sorption capacity and efficiency of oil absorption from diesel-polluted seawater by rice straw (RS). Spectroscopic analysis attenuated total refl...

Membrane Assisted Solvent Extraction (MASE) was applied as an extraction and enrichment technique of polycyclic aromatic hydrocarbons (PAHs) from tea infusions fruit/herbal-tea beverages. PAHs have been separated detected by high performance liquid chromatography coupled to a fluorescence detector (HPLC-FLD). Variables affecting MASE comprising temperature time, stirring rate, acceptor solvent ...

Fermented products are permanently under the attention of scientists and consumers, both due to nutritional importance health promoting effects. The fermented functional foods contribute a more balanced diet increase immune responses (among many other effects) with positive implications for quality life. In this sense, improving sourdough’s fermentation boost biotic (postbiotic paraprobiotic) p...

a soil bacterium capable of degrading chitin on chitin agar plates was isolated and identified as bacillus pumilus isolate u5 on the basis of 16s rdna sequence analysis. in order to optimize culture conditions for chitinase production by this bacterium, a two step approach was employed. first, the effects of several medium components were studied using the plackett-burman design. among various ...

Box and Hunter (1961) made an important observation that any fractional factorial design of resolutionR has the property that when projected onto anyR 1 factors it becomes a full factorial design. This has a signi cant implication for statistical analysis. We observe that the Plackett-Burman and related designs have a hidden projection property with an analogous implication for the analysis. Be...

To improve biodegradability (% biodegradation) and specific growth rate of Rhodococcus pyridinivorans NT2, culture medium and environmental parameters were screened and optimized using the statistical design techniques of Plackett-Burman and response surface methodology. Of the process variables screened, DNTs (2,4-DNT and 2,6-DNT), MgSO4·7H2O, temperature and inoculum size (O.D.) were selected...

a-Galactosidase production by a novel actinomycete strain Streptomyces griseoloalbus in shake flask culture was optimized using response surface methodology. Screening of variables to find their relative effect on a-galactosidase production was done using Plackett-Burman design. Out of the eleven factors screened, salinity, magnesium sulphate and temperature were found to influence the enzyme p...

A soil bacterium capable of degrading chitin on chitin agar plates was isolated and identified as Bacillus pumilus isolate U5 on the basis of 16S rDNA sequence analysis. In order to optimize culture conditions for chitinase production by this bacterium, a two step approach was employed. First, the effects of several medium components were studied using the Plackett-Burman design. Among various ...