Influence of biofertilizer on essential oil, harvest index and productivity effort of black cumin (Nigella sativa L.)
In order to investigate the effects of biofertilizer on essential oil harvest index and productivity effort of black cumin (Nigella sativa L), an experiment was conducted during the growing season of 2010 at Iran. The experimental design was factorial on the basis of randomized complete block design with three replications. Certain factors including four levels of animal manure (0, 10, 20 and 30 ton/ha, respectively)...
Large scale recovery of tetanus toxin and toxoid from fermentation broth by microporous tangential flow filtration
The commercial production of purified tetanus toxoid mainly depends on the effective separation of the bacterial toxin and toxoid from large volumes of fermentation broth of Clostridium tetani (Harvard 49205) vaccine strain. Tangential flow or cross-flow filtration system was used as rapid drive in the processing of immunobiological assays of tetanus toxin. Tetanus toxoid was prepared by detoxifying the...