Meatballs beef is a processed-meat product which has distinctive texture characteristic and
is classified as perishable food products. Microbiological and physico-chemical properties
are essential factors in determining the quality of meat products, and one of the things
affecting the quality is the interaction between smoke and food components. The objective
of this study was to evaluate the effect of liquid smoke on the microbiological and physico
-chemical properties of beef meatballs during storage. The research method used
explanatory research with five treatments and three replications and analyzed with a
regression model. Beef meatballs without the addition of liquid smoke were used as
controls, while the addition of liquid smoke 1.0 %, 1.5%, 2.5%, 2.5%, and 3.0% were
used as treatments. The parameters analyzed consisted of pH, total microbial number,
color, and texture profile of beef meatballs. The storage time significantly has a negative
effect on the pH value but has a positive effect on the total microbial number and texture
parameters (hardness, springiness, cohesiveness, and gumminess). Increased liquid smoke
concentrations in beef meatballs can significantly reduce microbe damage, maintain
texture during storage, and increase the total color difference. Liquid smoke can be used
as a natural preservative alternative, which is safe for beef meatballs. However, it must be
considered about consumers' preference for the smoky aroma and flavor obtained.