The efficacy of treatment was also verified on commercial Mozzarella cheeses dipped in GL amended with LFH and packed in sealed plastic under cold storage. To this purpose, ball-shaped samples obtained with chemically acidified curd were preferred because of their low microbial load. In spite of the blue indigo color, retrieved on inoculated microbially acidified Mozzarella cheese, this type of cheese turned from greenish reddish to bluish nuances (Fig. 3). This difference in pigmentation of the two kinds of inoc- ulated Mozzarella was also reported by Cantoni and Bersani (2010). The inoculated cheese sample treated with LFH (trial D) did not show any pigmentation up to 14 days of cold storage (Fig. 3S); moreover, no significant differences in color (P 1⁄4 0.350) were found between the LFH-treated and the uninoculated samples over time (Fig. 4).