Surface treatments for food processing surfaces to reduce organic residue and microbial accumulation

食物，如奇亚，大麻和亚麻种子和他们的芽是许多必需营养素的丰富来源，包括 蛋白质、ω-3和ω-6脂肪酸、植物化学物质和纤维。然而，被细菌污染的生种子 可能导致严重的食源性疫情和产品召回，这可能导致诉讼，负面消费者 认知、住院、严重的健康影响和经济损失。食源性病原体导致严重的 食品工业和公共卫生部门的问题，加拿大有大约400万例食源性 每年都有疾病报告。这些疾病的爆发通常与无法可靠地清洁和 对来自种子加工设备本身的病原体进行消毒（例如，洗涤、混合和包装）。等 细菌可以通过形成密集的细菌菌落的生物膜而停留在这些表面上。在这 我们的目标是对不锈钢食品工业设备的表面进行改性以使其不润湿， 光滑，超低的粘附力，通过固定一层食品级（FDA批准）油到改性 金属表面首先，不锈钢表面将通过化学连接烷基链进行改性， 金属氧化物结合的表面活性剂以使表面疏水。第二，一层薄薄的FDA批准的油 将通过浸渍或喷雾加入以吸附到疏水表面上。我们打算评估表面 这些新表面的润湿性、耐久性和对液体和固体有机材料的排斥性， 改性然后，我们将测试它们结合时改性表面的抗菌效果 使用商业抗菌产品，例如Agri-Neo（我们的工业合作伙伴）的产品。标准 微生物技术将用于测量治疗前后的细菌活力。我们设想 微尺度油层可以充当物理屏障以填充固有的金属表面粗糙度，以及 减少细菌附着的可用位点。我们相信这些改性的自清洁特性 表面将减少必要的清洁周期，增加最终产品产量，并提高 Agri-Neo消毒产品。 摘要的其他语言版本

Foods such as chia, hemp and flax seeds and their sprouts are rich sources of many essential nutrients including protein, omega-3 and -6 fatty acids, phytochemicals and fiber. However, raw seed contamination by bacteria can lead to serious foodborne outbreaks and product recalls, which can result in lawsuits, negative consumer perception, hospitalizations, severe health effects and economic loss. Food-borne pathogens cause serious problems in the food industry and public health sectors, and Canada has about 4 million cases of food-borne illness reported every year. These outbreaks are often clearly linked to the inability to reliably clean and sterilize the pathogens from the seed processing equipment itself (e.g., washing, mixing and packaging). Such bacteria can dwell on these surfaces by forming biofilms, which densely-packed bacterial colonies. In this proposal we aim to modify the surfaces of stainless steel food industrial equipment to make them non-wetting, slippery, and ultra-low adhesion, by immobilizing a layer of food-grade (FDA approved) oil onto the modified metal surface. First, the stainless steel surface will be modified by chemically attaching alkyl chains using a metal oxide-bound surfactant to make the surface hydrophobic. Second, a thin layer of an FDA-approved oil will be added to adsorb onto the hydrophobic surface by dipping or spraying. We intend to evaluate the surface wettability, durability and repellency to liquid and solid organic materials for these new surfaces, after modification. Then, we will test the antimicrobial impact of the modified surfaces when they are combined with commercial antimicrobial product, such as those by Agri-Neo (our industrial partner). Standard microbiological techniques will be used to measure bacterial viability before and after treatment. We envision that a microscale oil layer may act as a physical barrier to fill in the inherent metal surface roughness, and reduce available sites for bacterial attachment. We believe the self-cleaning properties of these modified surfaces will decrease necessary cleaning cycles, increase final product yields, and improve the efficacy of Agri-Neo disinfectant products. Other Language Version of Summary