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Sunfurơ acid is easily combined with the plant pigment as pigmentantoxian color of vegetables to form the new complexes are colorless, so when the sulfitethe fruit are red, green and other colors, often making vegetables lose color. This reaction occursreversible lengthwise and, following SO2, the color of the product result was again restored.Because the sunfurơ acid is a strong reducing agent should prevent the oxidative processes in fruitespecially ascobic acid oxidation process. So SO2 is a very good means to protect vitaminC has in the product.Toxic properties: sunfurơ Anhydride is harmful to health When entering the GIwill cause nausea headache, inhaling the gases SO2 and cause inflammation of the mucosa. So when sulfite chemicalmust be very careful. Workers usually work in the preparation of boxes and packagingto sulfite chemical as well as preparation of aqueous SO2, working where there is direct or SO2 productsin place of dry goods, sulfite must carry masks inWhen processing a semi-finished products have sulfite chemical separation of SO2 is easy because when the moduleboiling SO2 almost evaporate. So the method of sulfite chemical often used only for salethe products of the fruit which then Cook to acquire products such as jams. Methodnot used for sugar water products
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