Journal of Biochemistry & Biotechnology is an open-access journal dedicating the research in the area of biochemistry & biotechnology. The journal is committing to the new developments in methodology and techniques which are important resources for the research community.

Industrial waste; whatever the form in which it is released, still presents as environmental dangers for the nature and survival of all living beings. Among these toxic products, the focus has been on liquid effluents from the baker's levy industry that cause real environmental problems throughout the Mediterranean region and precisely in Tunisia. In order to minimize these hazards and to take advantage of these wastes for the sake of our environment, the present work consists of valuing the effects of these effluents on the germination and growth of one of the main cereals in our country which is barely. This has been put into play, using different doses of effluent solutions with or without dilution. The results showed that this waste is characterized by its richness in organic matter and the presence of protein traces. On the other hand, the microbiological analysis shows high rates of microbial load of coliforms and total germs.

Furthermore, no phytotoxic effect of this effluent has been demonstrated, especially at a volume of 5 ml of diluted and filtered solution, the latter has triggered better germination and growth of the plant almost similar to that of the control.

Industrial production of baker's yeasts generates a significant release of liquid waste which ranks among the main environmental hazards in the whole Mediterranean region and not only in Tunisia. These dangers have been aggravated especially with mismanagement and have been causing the release of bad smells and thus threatening the contamination of the entire environment. Our study focused on valorizing these liquid effluents in agriculture, whose main objective was to provide farmers with an efficient biological product. This product has shown no phytotoxic effects and could contribute to an improvement of the diet and indirectly better preservation of the environment. In the same context, the use of liquid effluent for fertigation contributes to an increase in yield and a reduction of the costs of the crop. The physicochemical analysis of this waste shows its richness in organic matter and the presence of traces of proteins. On the other hand, the microbiological analysis shows high rates of microbial load of coliforms and total germs. All these results lead us to valorize this effluent in the fertilization of the soil and the stimulation of the germination of the plants. Concerning barley grains fertigation, the best volume solution of liquid effluent was fixed at 5 ml and gave rise to a maximum germination rate coupled with optimal growth. Citation: Aissani N, Abidi A, Menjli S, et al. Effect of baker's yeast separation effluent on barley (Hordeum vulgare) germination and growth.

In conclusion, the valorization of liquid waste of baker's yeast in the fertigation of soils can be considered as a promising alternative for organic farming, essentially when using solutions of low doses of effluents. However, this alternative requires more in-depth studies on soil analysis and the identification of the active effluent molecules that have been behind these encouraging results.

Kind Regards,
Nicola B
Editorial Manager
Journal of Biochemistry & Biotechnology
Email: biochembiotech@scholarlypub.com