Fennel seeds and it's aromatic oil contain ingredients which are active biologically with high nutritional value, as well as their antimicrobial and fungal effects and alleviation of some diseases symptoms. The aim of this research was to determine the physical properties of fennel seeds and its aromatic oil and their effect on the growth of microbes and alleviation of respiratory diseases symptoms such as cough and sore throat.

Preparation of fennel seeds drink and it's aromatic oil at different ratios were used to treatment a group of individuals have cough and compare them with the control group. In addition, biscuits containing different ratios of fennel seeds and its aromatic oil ware prepare.

The results of this study showed that fennel seeds contained a high percentage of protein, dietary fiber, carbohydrates, minerals, vitamins and flavonoids. The results also showed that fennel seeds and its aromatic oils contained substances, which have an effect in relieving cough and sore throat. Extract of methanol from fennel seeds has antioxidant and antimicrobial activities. This study also showed that biscuits containing fennel seeds and its aromatic oil can be stored for longer periods than biscuits without fennel seeds and its aromatic oil no change in sensory properties or growth of microbial during storage. Therefore, we can use it as a natural preservative. In addition, biscuits prepared containing the different percentages of fennel seed and its aromatic oil and were accepted by the panelists when they were stored. Its sensory properties were well maintained. The results also showed that drink of fennel and its oil had an effective effect in the treatment of cough.

Keywords: Fennel, foods products, antibacterial activity, fennel oil aromatic.