FOOD SCIENCE ›› 2020, Vol. 41 ›› Issue (24): 172-178.doi: 10.7506/spkx1002-6630-20200625-337

• Component Analysis • Previous Articles     Next Articles

Effects of Sterilization and Preservative Treatments on the Flavor Components and Comparison on the Flavor Fidelity of Zaojiang, a Traditional Naturally Fermented Food in China Made Mainly from Ginger Roots

JIA Qian, CHENG Chao, TIAN Cheng, LI Wei, ZHOU Zhi, MO Kaiju, WANG Xingping   

  1. (1. College of Biological Science and Technology, Hubei Minzu University, Enshi 445000, China;2. Hubei Key Laboratory of Biological Resources Protection and Utilization (Hubei Minzu University), Enshi 445000, China)
  • Online:2020-12-25 Published:2020-12-28

Abstract: The flavor compounds and characteristics of Zaojiang undergoing six different treatments including sterilization, preservatives and control were determined by head-space solid phase micro-extraction-gas chromatography-mass spectrometry (HS-SPME-GC-MS) and electronic nose. Subsequently, principal component analysis (PCA) and cluster analysis were carried out on the data obtained to comprehensively analyze the effect of different treatments on the flavor maintenance of Zaojiang. A total of 117 volatile flavor components were identified, including 74 terpenes, 20 terpene alcohols, 7 carbonyl compounds, 7 esters, 3 acids, 2 phenols and 4 aromatic compounds. Heat treatment caused changes in the kinds of terpenes alcohols, carbonyl compounds and aromatic compounds, leading to significant changes in the flavor of Zaojiang. Of the preservatives tested, 0.1% potassium sorbate was the most effective in preserving the flavor of Zaojiang.

Key words: Zaojiang; head-space solid phase micro-extraction-gas chromatography-mass spectrometry; electronic nose; cluster analysis; principal component analysis; flavor maintenance

CLC Number: