Clear Search sequence regions


  • 1 hexanol (1)
  • acetate (4)
  • mass (1)
  • odor (1)
  • peach (4)
  • prunus persica (1)
  • Sizes of these terms reflect their relevance to your search.

    Non-volatiles offer some insight into the formation of aroma-active components in peach puree (PP), but more depth investigation is still needed. Formation pathways of key aroma-active and off-flavor components in PP during thermal concentration (PP + C) and sterilization (PP + C + S) are unclear. Therefore, GC-O-MS combined with UPLC-MS/MS was used to identify the volatile and nonvolatile components and their formation pathways. Among the 36 aroma-active compounds, the contents of γ-decalactone, hexyl acetate, leaf acetate, hexanal, and 1-hexanol (odor activity value ≥ 1) decreased by 46 %, 100 %, 100 %, 92 %, and 100 % between PP and PP + C + S, causing the weakening of "green" and "fruity" attributes. Off-flavor components including 1-octen-3-one, isobutyric acid, isothiazole, and isovaleric acid were identified during thermal processing. 1-Octen-3-one content increased by 75 % from PP to PP + C + S through linolenic acid metabolism, which contributed to "cooked"; the formation of isobutyric and isovaleric acids, isothiazole, resulted in the enhancement of "sour/rancid" via serine and leucine metabolism. Copyright © 2023 Elsevier Ltd. All rights reserved.

    Citation

    Gege Liu, Qinqin Chen, Min Gou, Jinfeng Bi. Formation of key aroma-active and off-flavor components in concentrated peach puree. Food chemistry. 2024 May 01;439:138105

    Expand section icon Mesh Tags

    Expand section icon Substances


    PMID: 38043287

    View Full Text