Linking sensory sciences to microbiome and genetic analysis for the geographical traceability of truffles

• Applicant: Professor Dr. Richard Splivallo
• Subject Area: Evolution and Systematics of Plants and Fungi ; Food Chemistry
• Term: from 2017 to 2022
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 336348694

• Final Report Year: 2022

Final Report Abstract

Overall, our data suggests that the mechanism by which bacteria influence truffle aroma might differ in white and black truffles. It also highlights that neither differences in microbiome community composition nor in truffle maturation explain aroma variability in white or black truffles. In conclusion aroma variability is most likely linked to climatic conditions that shall be further dissected in future work.

Publications

• 2019. Are bacteria responsible for aroma deterioration upon storage of the black truffle Tuber aestivum: A microbiome and volatilome study. Food Microbiol. 84, 103251
  Vahdatzadeh M, Deveau A, Splivallo R
  (See online at https://doi.org/10.1016/j.fm.2019.103251)
• 2019. Orchard conditions and fruiting body characteristics drive the microbiome of the black truffle Tuber aestivum. Front. Microbiol. 10
  Splivallo R, Vahdatzadeh M, Maciá-Vicente J.G, Molinier V, Peter M, Egli S, Uroz S, Paolocci F, Deveau A
  (See online at https://doi.org/10.3389/fmicb.2019.01437)
• 2021. Aroma and bacterial communities dramatically change with storage of fresh white truffle Tuber magnatum. LWT 151, 112125
  Niimi J, Deveau A, Splivallo R
  (See online at https://doi.org/10.1016/j.lwt.2021.112125)
• 2021. Geographical-based variations in white truffle Tuber magnatum aroma is explained by quantitative differences in key volatile compounds. New Phytol. 230, 1623–1638
  Niimi J, Deveau A, Splivallo R
  (See online at https://doi.org/10.1111/nph.17259)