... acidulant,flavoring agent, preservative and antistaling agent in food and beverage industry.Moreover,it is also used as antioxidant,plasticizer and detergent ... in chemical,cosmetics and cleaning industries.1.) In the food industry, it is used as the acidulant in the making of ... used as the antioxidant of grease. 2.) In the medicine industry, it is the raw material of many pharmaceuticals, such as ...