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original-paper | 05-December-2019

Structural Changes of Bacillus subtilis Biomass on Biosorption of Iron (II) from Aqueous Solutions: Isotherm and Kinetic Studies

from the linear plot of log qe versus log Ce. Linearized Temkin isotherm model is shown as represented by the following equation: qe=RTbTlnAT+RTbTlnCe where AT is the Temkin isotherm equilibrium binding constant (L/g), bT is the Temkin isotherm constant, R is universal gas constant (8.314 J/mol/K), and T is the temperature at 298 K. By plotting the values against qe versus lnCe the constants bT and AT can be determined. Biosorption kinetics. In this study, pseudo-first-order and pseudo-second

SRI LAKSHMI RAMYA KRISHNA KANAMARLAPUDI, SUDHAMANI MUDDADA

Polish Journal of Microbiology, Volume 68 , ISSUE 4, 549–558

Article | 05-June-2013

DEVELOPMENT OF A CARDAN MECHANISM FOR THE ASTEROID LANDER

built by FPGA chip. Kinematics and kinetics of the cardan mechanism are analyzed for attitude control. Complex feedback PD controller is applied to control the attitude of the cardan mechanism as large mass equipment base would influence control performance. This controller contains real time gravity compensation, desired acceleration compensation and velocity feed forward compensation. The experiments show that the cardan mechanism designed in this paper has good performance by adopting Complex

Zhijun Zhao, Jingdong Zhao, Hong Liu, Zhi Zhang

International Journal on Smart Sensing and Intelligent Systems, Volume 6 , ISSUE 3, 1283–1297

original-paper | 28-June-2019

The Joint Effect of pH Gradient and Glucose Feeding on the Growth Kinetics of Lactococcus lactis CECT 539 in Glucose-Limited Fed-Batch Cultures

predictions of model [7] and experimental data were minimized according to the sum of squares of errors (SSE) of the model fit: [11] SSE=∑i=1n∑j=1m(Pt-cPt)2 Where m represents the number of variables. Other terms are as previously described. Results and Discussion Growth kinetics of L. lactis CECT 539 in the realkalized fed-batch cultures. The evolution of the culture variables (pH and concentrations of nutrients: glucose, lactose, proteins, total nitrogen, and phosphorus) in the cultures I and II

MÓNICA COSTAS MALVIDO, ELISA ALONSO GONZÁLEZ, RICARDO J. BENDAÑA JÁCOME, NELSON PÉREZ GUERRA

Polish Journal of Microbiology, Volume 68 , ISSUE 2, 269–280

Original Paper | 28-June-2017

Effect of Lyophilization on Survivability and Growth Kinetic of Trichoderma Strains Preserved on Various Agriculture By-Products

Growth kinetics of four Trichoderma strains was tested on lignocellulosic by-products in solid state fermentation (SSF). The strains were also analyzed for their survival rate and growth after lyophilization on these carriers. All applied monocomponent and bicomponent media were substrates for the production and preservation of Trichoderma biomass. However, the maximum number of colony forming units (CFU/g dm) was acquired on bicomponent media based on dried grass and beet pulp or grass with

Danuta Witkowska, Katarzyna Buska-Pisarek, Wojciech Łaba, Michał Piegza, Anna Kancelista

Polish Journal of Microbiology, Volume 66 , ISSUE 2, 181–188

original-paper | 12-March-2020

Antibacterial Activity and Mode of Action of β-caryophyllene on Bacillus cereus

). Time-kill analysis. Time-kill analysis of BCP against B. cereus was performed to determine the killing kinetics of BCP and the optimum treatment time for the subsequent experiments. A complete killing of B. cereus treated with BCP at a concentration of 2.5% (v/v) was observed after 2 h whereas for the cells treated with half of the BCP MIC (1.25%, v/v) the suppression of cell growth was observed when compared to the untreated cells (control) (Fig. 1). Hence, a period of 2 h was used as the standard

CHEW-LI MOO, SHUN-KAI YANG, MOHD-AZURAIDI OSMAN, MOHD HAFIS YUSWAN, JIUN-YAN LOH, WEI-MENG LIM, SWEE-HUA-ERIN LIM, KOK-SONG LAI

Polish Journal of Microbiology, Volume 69 , ISSUE 1, 49–54

Original Paper | 04-December-2017

Temperature, pH and Trimethoprim-Sulfamethoxazole Are Potent Inhibitors of Biofilm Formation by Stenotrophomonas maltophilia Clinical Isolates

formation, kinetics of biofilm formation for strong biofilm producers and effect of trimethoprim-sulfamethoxazole (TMP/SMX) on formed biofilm. Most of the isolates (89.8%) were able to form a biofilm. Analysis of biofilm formation in different growth conditions showed that changing of temeperature and pH had the stronggest effect on biofilm formation almost equally in group of cystic fibrosis (CF) and non-CF strains. TMP/SMX in concentration of 50 μg/ml reduced completely 24 h old biofilms while

Marjan Biočanin, Haowa Madi, Zorica Vasiljević, Milan Kojić, Branko Jovčić, Jelena Lozo

Polish Journal of Microbiology, Volume 66 , ISSUE 4, 433–438

Research Article | 23-May-2019

PREDICTIVE MICROBIOLOGY OF FOOD

The beginnings of predictive microbiology date back to 1920 when Bigelow developed a logarithmic-linear dependence of kinetics on the death of microorganisms. Predictive microbiology is a sub-discipline of food microbiology, whose task is to predict the behavior of microorganisms in food using mathematical models. The predictive model for microbiology is usually a simplified description of the correlation between the observed reactions and the factors responsible for the occurrence of these

Elżbieta Rosiak, Katarzyna Kajak-Siemaszko, Monika Trząskowska, Danuta Kołożyn-Krajewska

Postępy Mikrobiologii - Advancements of Microbiology, Volume 57 , ISSUE 3, 229–243

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