Survival of Listeria innocua and Native Microflora in Sanitizer-Treated Wild Blueberries (Vaccinium Angustifolium)

Combined Effect of Active Packaging of Polyethylene Filled with a Nano-Carrier of Salicylate and Modified Atmosphere to Improve the Shelf Life of Fresh Blueberries

“…In addition, to molds contamination, the occurrence of several bacteria (e.g., coliforms , Listeria spp.) also contribute to blackberries decays within several days after harvest [ 44 , 45 , 46 ]. In particular, coliform contamination could be influenced by the conditions of hygiene prevailing during post-harvest handling and packing [ 47 ].…”

Strategies for Microbial Decontamination of Fresh Blueberries and Derived Products

“…In another study, Sheng et al [56] demonstrated that the application of 0.4% Neo-Pure (PAA at 450 ppm) together with cold storage was more efficient in reducing L. monocytogenes compared to chlorine (100 ppm) (Table A2). In the study of Callahan et al [57], in a custom-built pilot-scale processing line and setup for treatment of inoculated wild blueberries, L. innocua was reduced by 2.2 log CFU/g after immersion and spraying with PAA (80 ppm, 3 min). Furthermore, the importance of the inoculation method is highlighted, revealing that L. monocytogenes dip-inoculated on blueberries was more difficult to eradicate by both disinfectants than the spot-inoculated product [56].…”

“…Regarding the antimicrobial effect on the native flora, Sheng et al [56] found that the use of Neo-Pure (2 min) followed by cold storage (4 • C and −15 • C) allowed the total plate count (TPC) to remain stable, with the exception of YMC at 4 • C, which increased up to ∼4.6 log CFU/g after 14 days of storage. On the other hand, a treatment of 3 min combining immersion in PAA (80 ppm) followed by spraying with chlorine (200 ppm) had limited success in reducing the yeast population (<1.0 log CFU/g) [57].…”