Effect of soluble solids concentration on Neosartorya fischeri inactivation using UV-C light

Resistance of Eupenicillium javanicum mold spores to the light-emitting diode (LED), LED-assisted thermal and thermal processing in strawberry and apple juices

“…The effects of SS on the inactivation by vis-LED have not been reported by any previous research. However, a similar observation has been reported with the inactivation process using UV-C light ( Menezes et al, 2019 ).…”

Sterilization of food packaging by UV-C irradiation: Is Aspergillus brasiliensis ATCC 16404 the best target microorganism for industrial bio-validations?

“…As Figure 3 shows, a pronounced tailing was observed for all strains tested with both single-and multi-layer inoculum, with the exception of A. brasiliensis inoculated on a single-layer. Such phenomenon, already observed by Cerny (1977) and Lippert (1979), was related to the interfering action of soluble solids (when a liquid medium is treated with UV-C) or dust particles (when conidia or spores were dried and irradiated), to heterogeneous treatments, to the aggregation of microorganisms, or to the presence of resistant subpopulations (Baysal et al, 2013;Costa Menezes et al, 2019;Hijnen et al, 2006). In our tests, tailing could be attributed to the "shadow effect" exerted by spores in the upper layer of the inoculum, which blocked the UV-C irradiation and allowed a minor portion of undamaged spores to survive.…”

“…During the last decade, UV-C irradiation proved effective for decontaminating fresh vegetables such as blueberries (Zhou et al, 2019), pears (Li et al, 2010), oranges (Gunduz and Panir, 2013), or peppercorns (Gabriel et al, 2020), but also for extending the shelf-life of products such as lime juice (Acevedo et al, 2018), coconut water (Bhullara et al, 2016), or freshly squeezed turbid white grape juice (Unluturk and Atilgan, 2015). UV-C irradiation was also tested for reducing Aspergillus fischeri (≡Neosartorya fischeri) ascospores in apple juice at different soluble solids contents (Costa Menezes et al, 2019) and spores or biofilm by Alicyclobacillus spp. on stainless steel or rubber surfaces (Prado et al, 2019).…”

Soil-Borne Neosartorya spp.: A Heat-Resistant Fungal Threat to Horticulture and Food Production—An Important Component of the Root-Associated Microbial Community

“…There are also studies that show the prospect of using the UV-C light as a form of non-thermal food processing. This is considered to cause few quality alterations while reducing microbial burden [ 103 ]. During transport, it has been proven that using a coating with lipopeptides and nisin on cardboard boxes can diminish the duration of Neosartorya hiratsukae [ 104 ], which might prove advantageous during the shipment and delivery phase of production.…”