Abstract Tyrophagus putrescentiae (ham mite) is difficult for commercial dry cured ham producers to control. Methyl bromide is an effective fumigant but is now banned as an ozone depleting substance, meaning alternative methods to control mite infestation must be found. This research was conducted to test the efficacy of C8C9C10 fatty acids combined with and without food grade coatings to control mite infestations on dry cured hams. Ham cubes were coated directly or wrapped in nets saturated with C8C9C10 with combinations of either soybean oil, xanthan gum (XG) or carrageenan (CG) + propylene glycol alginate (PGA). Cubes were then inoculated with 20 large mixed sex ham mites and stored for 14 days at 22 ± 2 °C and 70 ± 5% relative humidity. The soybean oil alone or in combination with 10% C8C9C10 in direct coating, and 1% and 10% C8C9C10 in coated nets controlled mite population growth. In addition, the use of 10% C8C9C10 + XG and 10% C8C9C10 + CG + PGA in direct coatings or in saturated nets, and 1% C8C9C10 + XG in saturated nets also inhibited mite population growth. Unexpectedly, the soybean oil solvent by itself effectively controlled mite population growth as well. Sensory evaluation was performed using a difference from control test (n = 8) and indicated that only 10% C8C9C10 mixed with soybean oil and 100% soybean oil did not impart sensory differences to ham when used as a coating. However, for ham slices treated in saturated nets and gum with C8C9C10 mixtures in either coating or saturated nets did impart sensory differences. Results indicated that C8C9C10 and soybean oil could be used in coating formulations to control ham mites but long-term testing, sensory evaluation, and scaled up testing is needed prior to industrial implementation.

中文翻译：

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食品级短链脂肪酸在干腌火腿上防治腐食酪螨的应用及对感官特性的影响

摘要 Tyrophagus putrescentiae（火腿螨）是商业干腌火腿生产商难以控制的。溴甲烷是一种有效的熏蒸剂，但现在被禁止作为消耗臭氧层的物质，这意味着必须找到控制螨虫侵扰的替代方法。本研究旨在测试 C8C9C10 脂肪酸结合和不结合食品级涂层的功效，以控制干腌火腿上的螨虫侵扰。将火腿块直接涂上或包裹在用 C8C9C10 饱和的网中，其中包括大豆油、黄原胶 (XG) 或角叉菜胶 (CG) + 海藻酸丙二醇酯 (PGA)。然后用 20 只大型混合性火腿螨接种立方体，并在 22 ± 2 °C 和 70 ± 5% 相对湿度下储存 14 天。豆油单独或与10% C8C9C10组合直接包衣，和 1% 和 10% C8C9C10 在涂层蚊帐中控制了螨类种群的增长。此外，在直接涂层或饱和蚊帐中使用 10% C8C9C10 + XG 和 10% C8C9C10 + CG + PGA，以及在饱和蚊帐中使用 1% C8C9C10 + XG 也抑制了螨种群的增长。出乎意料的是，大豆油溶剂本身也有效地控制了螨类种群的增长。使用与对照测试（n = 8）的差异进行感官评估，并表明只有 10% C8C9C10 与豆油混合和 100% 大豆油在用作涂层时不会赋予火腿感官差异。然而，对于在饱和网中处理的火腿片和在涂层或饱和网中用 C8C9C10 混合物处理的口香糖确实会产生感官差异。