نتایج جستجو برای: ray spectroscopy response surface methodology solid state fermentation

تعداد نتایج: 2996233  

Hematite (α-Fe2O3) nanoparticle was synthesized using organometallic compound - ferrocene carboxaldehyde through solventless solid state thermal decomposition technique. The crystal structure, magnetic and morphological properties of the decomposed material were studied using powder X-ray diffraction (XRD), superconducting quantum interference device (SQUID) magnetometry, ...

Journal: :journal of oil, gas and petrochemical technology 2015
samira rajaee mohsen vafaie sefti asefe mousavi moghadam mahsa baghban salehi hasan naderi

a key parameter for the application of polymer gels in water shut off treatment is the adsorption of polymer gel onto the rock surface. so, the adsorption properties of a nanocomposite hydrogel were discussed in this research by crosslinking of sulfonated polyacrylamide/sodium montmorillonite aqueous solutions with chromium triacetate. the x-ray diffraction patterns indicated that exfoliated ty...

2015
Susan Grace Karp Vincenza Faraco Antonella Amore Luiz Alberto Junior Letti Vanete Thomaz Soccol Carlos Ricardo Soccol

Laccases are oxidative enzymes related to the degradation of phenolic compounds, including lignin units, with concomitant reduction of oxygen to water. Delignification is a necessary pretreatment step in the process of converting plant biomass into fermentable sugars. The objective of this work was to optimize the production of laccases and to evaluate the delignification of sugarcane bagasse b...

2014
Xueyong Ren Liang He Junwen Cheng Jianmin Chang

The culture conditions for the yield of a polysaccharide (PCPS) produced by Paecilomyces cicadae (Miquel) Samson on solid-state fermentation were investigated using response surface methodology (RSM). Plackett-Burman design (PBD) was applied to screen out significant factors, followed by the paths of steepest ascent to move to the nearest region of maximum response. Then Box-Behnken design (BBD...

2015
Bhaumik R Dave Pritesh Parmar

World is threaten to energy crisis which has advances research in bioenergy and specifically development of biofuels to replace petroleum products have increased the use of microbial enzyme like cellulases and xylanases as well as amylases for generation of reducing sugars for their conversion into bioethanol. Extensive research has been carried out in this view but alkaline cellulase productio...

2013
Azza S. Naik Smita S. Lele

This study reports lovastatin production by solid state fermentation using pomegranate seeds as a substrate. Six different fungal strains and several agro-industrial wastes were selected and screened. Various physicochemical parameters were optimized to improve lovastatin productivity. Moreover, chemical mutation was system-atically employed to enhance lovastatin yield on selected strains. Prod...

2013
Jian-Guo Zhang Ting-Ting Fang Zhao-Jun Wei

Cordycepin (3’-deoxyadenosine) is one of the most versatile metabolites of Cordyceps militaris due to its broad spectrum of biological activity. In this study, response surface methodology (RSM) was applied to optimize the medium components for the cordycepin production by submerged liquid culture. The optimal parameters for cordycepin production within the experimental range of the variables r...

2009
Manas R. Swain Shaktimay Kar Ramesh C. Ray

The purpose of this investigation was to study the effect of Bacillus subtilis CM5 in solid state fermentation using cassava bagasse for production of exo-polygalacturonase (exo-PG). Response surface methodology was used to evaluate the effect of four main variables, i.e. incubation period, initial medium pH, moisture holding capacity (MHC) and incubation temperature on enzyme production. A ful...

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