关键词: 亚硝酸盐, 雪里蕻, 亚硝胺, 乳酸

Abstract: Nitrite isConsidered considered harmful to people’s health .In this paper the forming of nitrite in the process of pickling of potherb mustard has been studied in detail. Through experiments the relations between the forming of nitrite and several external factors have been found. The results suggested that: (1) the speed of forming and content of nitrite were related to the concentration of sodium chloride; (2) the temperature of fermentation affected the speed of the forming and content of nitrite; (3)acid environment was unfavourable to the forming of nitrite ;(4)glucose was favourable to reduce the content of nitrite in the potherb mustard; (5)pollution of microorganism might increase the content of nitrite.

Key words: Nitrite , Potherb mustard , Nitrosamine , Lactic acid