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Release Date: April 21, 2022 Publisher: Text | Professor Ye Zhangying of Zhejiang University, Editor Pei Luowei of "Electrolyzed Water Technology Channel" | Pei Luowei of "Electrolyzed Water Technology Channel"
Recently, the epidemic situation in Shanghai is severe, and most areas are under lockdown. The daily necessities of the general public are basically solved through express channels or community group purchases and distribution.
In the process of production, packaging and transportation of group-purchased goods, the surface of the inner and outer packaging may be contaminated by the new coronavirus. After touching the virus on the goods with hands, and then touching the mouth, nose and other organs with hands, it may cause self-infection, that is, "Contact Transmission".
Therefore, after receiving the group shopping items, the items should be disinfected immediately. For regular items, either alcohol or traditional chlorine-based disinfectants can meet the disinfection requirements.
Selection of Food Sanitizers
According to the definition in the List of Raw Materials (Ingredients) of Food Disinfectants (2009 Edition), “Food disinfectants refer to substances that are directly used to sterilize food, tableware, tools, equipment or food packaging materials and containers that come into direct contact with food.”
Disinfectants for ready-to-eat food can be directly used for food disinfection. The filing objects of disinfection products are only "fruits and vegetables", and the disinfection of aquatic products, livestock and poultry raw materials in the food industry is widespread, and even some are Written into industry standards, such as: "NY/T 1174-2006 Quality Management Practice for Broiler Slaughter". Therefore, the industry's understanding is that "fruits and vegetables" are the representatives of food, and the food disinfectant that has obtained this filing license can be directly used for the disinfection of fruits and vegetables, aquatic products, livestock and poultry, etc.
Although the most used alcohol and sodium hypochlorite in daily life are listed in the "List of Raw Materials (Ingredients) of Food Disinfectants (2009 Edition)", hypochlorous acid is considered as a more suitable food disinfectant. The author believes that the use of hypochlorous acid for food disinfection has the following advantages: (1) excellent bactericidal effect at low concentrations; (2) no residue after use; (3) no stimulation to the human body. Compared with the daily use of alcohol and sodium hypochlorite, it is more suitable for use as a food disinfectant.
On June 10, 2002, the Japanese Ministry of Health, Labour and Welfare identified the hypochlorous acid water produced by electrolysis as a food additive. In 2002, strongly acidic electrolyzed water (below pH2.7) and slightly acidic electrolyzed water (pH5.0-6.5) were identified as food additives (bactericides) under the name of hypochlorous acid water, while weakly acidic electrolyzed water (pH2. 7-5.0) was also reviewed and approved by the Food Safety Committee in the approval application for food additives. In addition, hypochlorous acid water as a food additive must be completely removed after use.
FDA Food Contact Notice 1811 - Hypochlorous acid as a liquid antimicrobial agent for use in the production and processing of meat or poultry; cleaning of processed or prepared meat and poultry, fish and seafood, fruit and vegetables, and eggs , When used for the above purposes, the effective chlorine concentration cannot exceed 60ppm.
"GB28234-2020 Hygienic Requirements for Acidic Electrolyzed Water Generators" points out: Slightly acidic electrolyzed water (the main component is hypochlorous acid) is suitable for disinfection of sanitary hands, skin and mucous membranes, disinfection of eating and drinking utensils, food processing utensils and fruits and vegetables , Disinfection of general object surface and environmental surface, disinfection of fabric items, disinfection of waterway of oral comprehensive treatment table.
Food Sterilization Precautions
(1) When unpacking, you need to wear masks and gloves, and keep a certain distance from the items. Do not get too close to avoid contact and inhalation of virus aerosols that may occur during unpacking.
(2) After getting the express, you can spray or wipe the surface with disinfectant, especially when spraying, ensure that each side is completely wet. Fruits and vegetables purchased online should be sprayed with food disinfectant on the purchased items, placed in a dry and ventilated place for more than 10 minutes after spraying, and finally rinsed with running water.
(3) If there are one or more layers of items in the packaging bag, it can also be sterilized layer by layer.
(4) After touching the items, use hand sanitizer for hand disinfection or wash hands with running water according to the six-step method, and avoid touching the mouth, eyes and nose with uncleaned hands.
Under the severe epidemic situation in Shanghai and the spread of the epidemic across the country, group shopping has become the norm. It is necessary to strengthen the disinfection of group purchase or online shopping, especially group purchase food. Hypochlorous acid disinfectant is highly effective in sterilization, environmentally friendly, no residue, and safe and non-irritating. It is especially suitable for the disinfection of group-purchased food.
