skeleton oil seal
One of the lesser-known aspects of MSG is its potential role as a preservative. Although it primarily serves to enhance flavor, its ability to inhibit the growth of certain bacteria hints at its preservative qualities. Preservatives are substances added to food products to prevent spoilage caused by microorganisms. While traditional preservatives like sodium nitrite and sorbates have been used for years, MSG offers an alternative, especially in enhancing the taste of preserved foods.
msg preservative

The antimicrobial activity of sorbic acid and its salts is attributed to their undissociated acid molecule. And therefore their efficacy is pH-dependent. The upper limit for its inhibitory activity is at 6.5 in most applications. The lower the pH, the better as a result of more undissociated sorbic acid. However, this upper limit can be raised in low water activity-solutions.