Table 3. Natural preservatives from microorganisms.

Examples	Sources	Bacterial target	References
Bacteriocins
Nisin, diplococcin, acidophilin, bulgaricin, helveticin, lactacin, pediocin, and plantarin	Lactococcus lactis, Lactobacillus acidophilus, Lactobacillus bulgaricus, etc.	Gram positive bacteria	Lee et al., 2013; Anastasiadou et al., 2008; Bhunia et al., 1988
Natamycin	Streptomyces natalensis	Molds and yeasts	EFSA, 2009
Reuterin	Lacotobacillus reuteri	Gram-negative and -positive bacteria, yeasts, and filamentous fungi	Axelsson et al., 1989