FOOD SCIENCE ›› 2012, Vol. 33 ›› Issue (16): 124-129.

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Effects of Reaction Temperature and Time on Generation of Volatile Compounds from Maillard Reaction of Ascorbic Acid and Lysine

  

  • Received:2011-06-30 Revised:2012-07-03 Online:2012-08-25 Published:2012-09-07
  • Contact: Zhi-Wei TAN E-mail:tanzw1112@sohu.com
  • Supported by:

    Study on the Mechanism of Formation of Meaty Compounds from Ascorbic Acid during the Maillard Reaction and the Antioxidant Activity of Maillard Reaction Products

Abstract: The identification of volatile compounds generated from the Maillard reaction of ascorbic acid and lysine at different reaction temperatures and reaction durations was performed using headspace solid-phase microextraction-gas chromatography-mass spectrometry (HS-SPME-GC-MS). Twenty-eight volatile compounds were identified, including pyrazines, aldehydes, furans, alcohols, benzenamines and quinolines. Sixteen pyrazines were the primary aromatic compounds. The effects of reaction temperature and time on the generation of volatile compounds, especially pyrazines, were investigated. The results showed that increased total amount of pyrazines was observed with increasing reaction temperature and time. Meanwhile, the generation of 2,5-dimethylpyrazine, 2-ethyl-3-methylpyrazine, 2-ethyl-5-methylpyrazine, 3-ethyl-2,5-dimethylpyrazine and 2-methylpyrazine revealed a significant increase during the reaction between ascorbic acid and lysine with increasing reaction temperature, and an obvious high yield of 2,5-dimethylpyrazine was achieved due to increasing reaction time.

Key words: Maillard reaction, ascorbic acid-lysine, reaction temperature, reaction time, pyrazines

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