Potassium sorbate is a critical preservative extensively utilized in the food, beverage, cosmetic, and pharmaceutical industries. Derived from sorbic acid, a naturally occurring compound found in berries, potassium sorbate exists in the form of a white crystalline powder with notable water solubility.

Natamycin, or pimaricin, is an antifungal agent derived from Streptomyces natalensis, a bacterium. Known for its ability to inhibit the growth of molds and yeast, it serves as an essential preservative in the food industry.

Streptococcus lactis is a bacterial species essential to the fermentation processes utilized in dairy production, specifically in the creation of various fermented dairy products such as cheese and yogurt. This lactic acid bacterium plays a pivotal role in converting lactose, the sugar present in milk, into lactic acid via fermentation.

Calcium propionate, a calcium salt of propionic acid, is a crucial preservative in the food industry, appreciated for its ability to hinder the growth of molds and certain bacteria in various food items. This white crystalline solid is water-soluble and serves as an effective antimicrobial agent.

Sodium dehydroacetate, also known as DHA sodium salt, is a white crystalline powder that acts as a potent preservative and antimicrobial agent. It is widely used in the cosmetic, personal care, and, to a lesser extent, food industries.