Abstract Dry-cured hams are frequently infested by mold and Tyrophagus putrescentiae in the aging facility during the 3 mo to 2-year aging period. Food grade coatings and these coating treated nets have been developed to control mold and mite growth on dry-cured hams to curtail the use of methyl bromide. Ham nets treated with food-grade coating of 1% propylene glycol alginate + 1% carrageenan + 40% propylene glycol were tested in a commercial research trial in 3 lots with approximately 100 hams in each lot, which also had approximately 100 control hams (untreated). Six of these hams were sent back to the research team. Three of these hams (already aged for 8 mo) were kept in a mite-infested simulated aging room for further evaluation of mold occurrence and mite population growth for another 6 mo. The other 3 hams from each lot of each treatment were tested by gas chromatography for propylene glycol residual. Mold evaluation indicated that the treatment hams reduced mold occurrence compared to the control hams, and there were no mite activities in any of these hams per inspection. In the mite-infested aging room, these coating-treated nets reduced mold and mite growth on whole hams (8–14-month-old). There was no difference in propylene glycol concentration between the control (0.072%) and net treated samples (0.053%). This concentration is 4 times less than 2%, the maximum acceptable concentration of this GRAS compound based on CFR 21,184.1666. Therefore, these hams met the legal requirements for commerce and were safe for human consumption and can be used to mitigate and help control mite infestations and mold growth of hams that are aged longer than 5 months.

中文翻译：

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使用食品级涂层处理过的蚊帐控制干腌火腿老化设施中的霉菌生长和螨虫侵扰

摘要 干腌火腿在陈化设施中在3 个月至2 年的陈化期内经常受到霉菌和腐食酪菌的侵扰。食品级涂层和这些涂层处理过的网已被开发用于控制干腌火腿上的霉菌和螨虫的生长，以减少甲基溴的使用。用 1% 海藻酸丙二醇酯 + 1% 角叉菜胶 + 40% 丙二醇的食品级涂层处理的火腿网在商业研究试验中分 3 批进行测试，每批约 100 只火腿，其中还有约 100 只对照火腿（未处理） ）。其中六只火腿被送回研究小组。将这些火腿中的三只（已经老化 8 个月）保存在螨虫出没的模拟老化室中，以进一步评估霉菌的发生和螨虫种群的生长情况，再过 6 个月。来自每种处理的每批的另外 3 根火腿通过气相色谱法测试丙二醇残留。霉菌评估表明，与对照火腿相比，处理火腿减少了霉菌的发生，并且每次检查这些火腿都没有螨虫活动。在螨虫滋生的老化室，这些经过涂层处理的网减少了整个火腿（8-14 个月大）的霉菌和螨虫的生长。对照 (0.072%) 和净处理样品 (0.053%) 之间的丙二醇浓度没有差异。该浓度是该 GRAS 化合物根据 CFR 21,184.1666 的最大可接受浓度 2% 的 4 倍。所以，