Prevention measures for corrosion and rancidity?
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Rancidity: -
Preventive measures 1. Adding Inert gases – Inert gas can be added to the packet or the container like nitrogen, which does not react with oxygen. Example – Chips packets are flushed with nitrogen gas, so they don’t become rancid. 2. Adding antioxidants- Antioxidants are added to some foods to slow down or eliminate oxidative deterioration. Examples- * BHA – Butylated Hydroxy Anisole. * BHT – Butylated Hydroxy Toluene. 3. Refrigeration – Refrigerators reduce the temperature and hence don’t allow the microbes to continue their processes. 4. Vacuum packaging – Vacuum packaging is done to keep oxygen out. 5. By using oxygen scavengers- Oxygen scavengers or oxygen absorbers are added to enclosed packaging to help remove or decrease the level of oxygen in the package. They are used to help maintain product safety and extend shelf life. 6. Keeping food in air tight containers – Less air too prevents rancidity. 7. By storing food in dark place.9. Preventive measures Ways to prevent rancidity Using inert gases in packaging Using oxygen scavengers Refrigeration Storing in a dark place Using air- tight containers Vacuum packaging Using anti- oxidants (BHA, BHT)
Corrosion : -
Preventive measures 1. Painting - Paints can protect metals from the degrading effect of environmental gases. 2. Galvanization – It is the process of applying a protective zinc coating to steel or iron, to prevent rusting. The most common method is hot-dip galvanization, in which parts are submerged in a bath of molten zinc. 3. Electroplating – This helps in avoiding the metal to have a direct contact with the environment. 4. Alloying - Corrosion can also be prevented by making alloys. 5. Anodization – It is a surface treatment which prevents corrosion. 6. Cathodic protection (CP) - It is a technique to control the corrosion of a metal surface by making that surface the cathode of an electrochemical cell. 7. Enameling – It too helps in preventing corrosion.17. Preventive measures Ways to prevent corrosion Painting Galvanization Alloying ElectroplatingAnodization Cathodic Protection (CP) Enameling
Preventive measures 1. Adding Inert gases – Inert gas can be added to the packet or the container like nitrogen, which does not react with oxygen. Example – Chips packets are flushed with nitrogen gas, so they don’t become rancid. 2. Adding antioxidants- Antioxidants are added to some foods to slow down or eliminate oxidative deterioration. Examples- * BHA – Butylated Hydroxy Anisole. * BHT – Butylated Hydroxy Toluene. 3. Refrigeration – Refrigerators reduce the temperature and hence don’t allow the microbes to continue their processes. 4. Vacuum packaging – Vacuum packaging is done to keep oxygen out. 5. By using oxygen scavengers- Oxygen scavengers or oxygen absorbers are added to enclosed packaging to help remove or decrease the level of oxygen in the package. They are used to help maintain product safety and extend shelf life. 6. Keeping food in air tight containers – Less air too prevents rancidity. 7. By storing food in dark place.9. Preventive measures Ways to prevent rancidity Using inert gases in packaging Using oxygen scavengers Refrigeration Storing in a dark place Using air- tight containers Vacuum packaging Using anti- oxidants (BHA, BHT)
Corrosion : -
Preventive measures 1. Painting - Paints can protect metals from the degrading effect of environmental gases. 2. Galvanization – It is the process of applying a protective zinc coating to steel or iron, to prevent rusting. The most common method is hot-dip galvanization, in which parts are submerged in a bath of molten zinc. 3. Electroplating – This helps in avoiding the metal to have a direct contact with the environment. 4. Alloying - Corrosion can also be prevented by making alloys. 5. Anodization – It is a surface treatment which prevents corrosion. 6. Cathodic protection (CP) - It is a technique to control the corrosion of a metal surface by making that surface the cathode of an electrochemical cell. 7. Enameling – It too helps in preventing corrosion.17. Preventive measures Ways to prevent corrosion Painting Galvanization Alloying ElectroplatingAnodization Cathodic Protection (CP) Enameling
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to perevent corrosion, protect the metal from getting exposed to moisture and air,paint the surface,apply oil on the surface,or you can electroplate it with an another non reactive metal
And for rancidity,prevent the expose of food to bacterias and store it in very low temperature
And for rancidity,prevent the expose of food to bacterias and store it in very low temperature
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