One of the important targets of industrial biotechnology is using cheap biomass resources. The traditional strategy is microbial fermentations with single strain. However, cheap biomass normally contains so complex compositions and impurities that it is very difficult for single microorganism to utilize availably. In order to completely utilize the substrates and produce multiple products in on...

Flow Microcalorimetry, E. coli K12, Aerobic Chemostat Culture The combination of a 3-liter fermentor with a flow-through calorimeter is described. Minimum time-lags are less than 10 s corresponding to maximum thermal peak disturbances of ~ 4 jiW. The set up shows an excellent long time stability. Aerobic growth of Escherichia coli K12 in batch cultures was used to test the equipment. Precision ...

Studies on the effects of microwaves on the growth of microbial cultures were searched for in biomedical journals indexed in MEDLINE from 1966 to 2012. The published studies showed that microwaves produce significant effects on the growth of microbial cultures, which vary from the killing of microorganisms to enhancement of their growth. The nature and extent of the effect depend on the frequen...

This study aimed to produce polyhydroxyalkanoates (PHAs) from organic wastes by mixed bacterial cultures using anaerobic-aerobic fermentation systems. Palm oil mill effluent (POME) was used as an organic source, which was cultivated in a two-step-process of acidogenesis and acid polymerization. POME was operated in a continuous flow anaerobic reactor to access volatile fatty acids (VFAs) for PH...

Energy shortage and environmental pollution Microorganisms in the anode chamber oxidize fuel have caused global disasters. Thus, active research to (electron donor e.g. glucose, acetate, etc.) to produce find out alternate sources of energy especially renewable electrons and protons. Produced electrons are transferred sources of energy is a new trend [1]. In recent years, to cathode compartment...

It is shown that the results of the marker frequency analysis of Sueoka and Yoshikawa (1965) can be derived as very good approximations from a model where the rigid assumptions of their analysis are relaxed to take into account statistical variations in the timing of cell events. It is further shown that the expression for the amount of DNA per cell can be approximated by an elementary exponent...

ABSTRACT: Fermented cucumber is a traditional lactic acid fermentation that is related to the presence of microorganisms. In this study, the use of suitable L. plantarum starter culture with L.bulgaricus and S. thermophilus to improve the cucumber fermentation process with high quality has been studied. Cucumbers in brine containing 4 to 6% NaCl and 0.2 to 0.4% Inulin (w/v) were inoculated with...