Finally, it is concluded from the results of this
investigation that essential oils extracts of common
onions and garlic were found to inhibit bacterial and
mould growth. However, the effectiveness of this
inhibition was stronglyrelated to the type of onions or
garlic extracts used. The results also showed that a
significant (ro0:05) effect was obtained when concentrations
of essential oils extracts were above 10%. On
the other hand, it will also be of interest to examine the
different compounds of the extracts and their antimicrobial
activities against a wide range of a commonly
food contaminating bacteria and fungi to maintain their
qualities. However, despite the fact that Allium plants
could be used as a potential source for inhibiting, to date
unfortunately, the relative biochemical instability of the
alliicin, thiosulfonates and related compounds, and the
strong odor seem to have limited their use as practical
food additive or preservative.
Finally, it is concluded from the results of thisinvestigation that essential oils extracts of commononions and garlic were found to inhibit bacterial andmould growth. However, the effectiveness of thisinhibition was stronglyrelated to the type of onions orgarlic extracts used. The results also showed that asignificant (ro0:05) effect was obtained when concentrationsof essential oils extracts were above 10%. Onthe other hand, it will also be of interest to examine thedifferent compounds of the extracts and their antimicrobialactivities against a wide range of a commonlyfood contaminating bacteria and fungi to maintain theirqualities. However, despite the fact that Allium plantscould be used as a potential source for inhibiting, to dateunfortunately, the relative biochemical instability of thealliicin, thiosulfonates and related compounds, and thestrong odor seem to have limited their use as practicalfood additive or preservative.
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