The objective of this research was to evaluate the effects different levels Indigofera zollingeriana and Pennisetum purpureum cv . Mott on in vitro digestibility rumen pH. treatments were T1=60% Mott, T2 = 45% + 15% zollingeriana, T3 30% T4 T5 60% All supplied with rice bran 40%. result showed that there are no significant difference ruminal pH (P>0.05). normal range 6.66-6.73. increasing le...

The helminth parasite Fasciola hepatica secretes cathepsin L cysteine proteases to invade its host, migrate through tissues and digest haemoglobin, its main source of amino acids. Here we investigated the importance of pH in regulating the activity and functions of the major cathepsin L protease FheCL1. The slightly acidic pH of the parasite gut facilitates the auto-catalytic activation of FheC...

Malachite green dye is widely used in food and textile industries for various purposes and also used as biocide in the aquaculture industry to control fungal attacks and protozoan infections. Surface and ground water is contaminated by dyes due to discharge of untreated wastewater from industries. The presence of malachite green in water causes serious health effects such as mutagenesis, re...

Large amounts of wastewater containing hydroxypropyl guar gum (HPGG), polyacrylamide (PAM) and carboxymethyl cellulose (CMC) are produced in the process fracturing. In work, a Fentonlike system presence H2O2 was employed to degrade wastewater. The effects oxidant concentration, catalyst dosage, temperature pH on degradation efficiency polymer were studied detail. Results showed that prepared co...

Sensor drift is an inevitable measurement problem and is particularly significant in the long term. The common practice is to have an auto-calibration facility (including standard buffers or accurate integrated actuators) mounted on the monitoring system. However, this approach may not be feasible when the monitoring system is miniaturized to the size of a capsule. In this paper, we develop an ...

The aim of this study was to use agro-industrial residues for the production of a halotolerant keratinolyticprotease by Actinobacterium sp. in solid-state fermentation. Among various agro-industrial residues that were evaluated, apple pomace supported maximum protease production (8400 U/g material). The optimum conditions required for enzyme production were a fermentation period of 72 h, 10% (w...

The microbiological oxidation of synthetic chalcocite and covellite has been investigated using an adapted strain of Thiobacillus ferrooxidans. Biodegradation of chalcocite was found to be 90 to 100% and that of covellite 45 to 60%. Optimum conditions for the oxidation of chalcocite were: pH, 1.7 to 2.3; temperature, 35 C; and ferric iron concentration in the range of 0.004 to 0.01 M. For covel...