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Sesame-flavor Baijiu Fuqu SynCom (13-genus)

Community ID CommunityMech:000283
Ecological State ENGINEERED
Environment sesame flavor-type baijiu fermentation (Fuqu starter) — ontology label: fermentation starter
ENVO:03600040 · HabitatMech ↗

Thirteen-genus synthetic microbial community (SynCom) designed for Fuqu, the fermentation starter used in sesame flavor-type baijiu (Chinese liquor) production. Multi-omics analysis identified 13 core genera - the fungal/yeast genera Aspergillus, Pichia, Saccharomyces, Trichosporon, Candida, Torulaspora, Clavispora and Wickerhamomyces and the bacterial genera Bacillus, Lactobacillus, Leuconostoc, Pediococcus and Weissella - as the core microbiota driving flavor-compound formation. Assembled into a SynCom, these members yielded the highest flavor-compound diversity and 3-(methylthio)-1-propanal (a key sulfur-containing flavor compound) content in simulative fermentation, and outperformed commercial Fuqu at large scale. The community represents an engineered strategy to enhance sulfur-containing flavor compounds during baijiu fermentation.

Taxonomy

Taxon Ontology ID Functional Roles Abundance
Aspergillus NCBITaxon:5052 · TaxonMech · TraitMech
PRIMARY_DEGRADER
N/A
  • PMID:42121419 - SUPPORT (IN_VITRO)
    "13 genera (Aspergillus, Bacillus, Lactobacillus, Leuconostoc, Pediococcus, Pichia, Saccharomyces, Trichosporon, Weissella, Candida, Torulaspora, Clavispora, and Wickerhamomyces) were identified as core microbiota involved in the production of those flavor compounds"
Bacillus — ontology label: Bacillus <firmicutes> NCBITaxon:1386 · TaxonMech · TraitMech
PRIMARY_DEGRADER
N/A
  • PMID:42121419 - SUPPORT (IN_VITRO)
    "13 genera (Aspergillus, Bacillus, Lactobacillus, Leuconostoc, Pediococcus, Pichia, Saccharomyces, Trichosporon, Weissella, Candida, Torulaspora, Clavispora, and Wickerhamomyces) were identified as core microbiota involved in the production of those flavor compounds"
Lactobacillus NCBITaxon:1578 · TaxonMech · TraitMech
SECONDARY_FERMENTER
N/A
  • PMID:42121419 - SUPPORT (IN_VITRO)
    "13 genera (Aspergillus, Bacillus, Lactobacillus, Leuconostoc, Pediococcus, Pichia, Saccharomyces, Trichosporon, Weissella, Candida, Torulaspora, Clavispora, and Wickerhamomyces) were identified as core microbiota involved in the production of those flavor compounds"
Leuconostoc NCBITaxon:1243 · TaxonMech · TraitMech
SECONDARY_FERMENTER
N/A
  • PMID:42121419 - SUPPORT (IN_VITRO)
    "13 genera (Aspergillus, Bacillus, Lactobacillus, Leuconostoc, Pediococcus, Pichia, Saccharomyces, Trichosporon, Weissella, Candida, Torulaspora, Clavispora, and Wickerhamomyces) were identified as core microbiota involved in the production of those flavor compounds"
Pediococcus NCBITaxon:1253 · TaxonMech · TraitMech
SECONDARY_FERMENTER
N/A
  • PMID:42121419 - SUPPORT (IN_VITRO)
    "13 genera (Aspergillus, Bacillus, Lactobacillus, Leuconostoc, Pediococcus, Pichia, Saccharomyces, Trichosporon, Weissella, Candida, Torulaspora, Clavispora, and Wickerhamomyces) were identified as core microbiota involved in the production of those flavor compounds"
Pichia NCBITaxon:4919 · TaxonMech · TraitMech
SECONDARY_FERMENTER
N/A
  • PMID:42121419 - SUPPORT (IN_VITRO)
    "13 genera (Aspergillus, Bacillus, Lactobacillus, Leuconostoc, Pediococcus, Pichia, Saccharomyces, Trichosporon, Weissella, Candida, Torulaspora, Clavispora, and Wickerhamomyces) were identified as core microbiota involved in the production of those flavor compounds"
Saccharomyces NCBITaxon:4930 · TaxonMech · TraitMech
SECONDARY_FERMENTER
N/A
  • PMID:42121419 - SUPPORT (IN_VITRO)
    "13 genera (Aspergillus, Bacillus, Lactobacillus, Leuconostoc, Pediococcus, Pichia, Saccharomyces, Trichosporon, Weissella, Candida, Torulaspora, Clavispora, and Wickerhamomyces) were identified as core microbiota involved in the production of those flavor compounds"
Trichosporon NCBITaxon:5552 · TaxonMech · TraitMech
SECONDARY_FERMENTER
N/A
  • PMID:42121419 - SUPPORT (IN_VITRO)
    "13 genera (Aspergillus, Bacillus, Lactobacillus, Leuconostoc, Pediococcus, Pichia, Saccharomyces, Trichosporon, Weissella, Candida, Torulaspora, Clavispora, and Wickerhamomyces) were identified as core microbiota involved in the production of those flavor compounds"
Weissella NCBITaxon:46255 · TaxonMech · TraitMech
SECONDARY_FERMENTER
N/A
  • PMID:42121419 - SUPPORT (IN_VITRO)
    "13 genera (Aspergillus, Bacillus, Lactobacillus, Leuconostoc, Pediococcus, Pichia, Saccharomyces, Trichosporon, Weissella, Candida, Torulaspora, Clavispora, and Wickerhamomyces) were identified as core microbiota involved in the production of those flavor compounds"
Candida NCBITaxon:5475 · TaxonMech · TraitMech
SECONDARY_FERMENTER
N/A
  • PMID:42121419 - SUPPORT (IN_VITRO)
    "13 genera (Aspergillus, Bacillus, Lactobacillus, Leuconostoc, Pediococcus, Pichia, Saccharomyces, Trichosporon, Weissella, Candida, Torulaspora, Clavispora, and Wickerhamomyces) were identified as core microbiota involved in the production of those flavor compounds"
Torulaspora NCBITaxon:4948 · TaxonMech · TraitMech
SECONDARY_FERMENTER
N/A
  • PMID:42121419 - SUPPORT (IN_VITRO)
    "13 genera (Aspergillus, Bacillus, Lactobacillus, Leuconostoc, Pediococcus, Pichia, Saccharomyces, Trichosporon, Weissella, Candida, Torulaspora, Clavispora, and Wickerhamomyces) were identified as core microbiota involved in the production of those flavor compounds"
Clavispora NCBITaxon:36910 · TaxonMech · TraitMech
SECONDARY_FERMENTER
N/A
  • PMID:42121419 - SUPPORT (IN_VITRO)
    "13 genera (Aspergillus, Bacillus, Lactobacillus, Leuconostoc, Pediococcus, Pichia, Saccharomyces, Trichosporon, Weissella, Candida, Torulaspora, Clavispora, and Wickerhamomyces) were identified as core microbiota involved in the production of those flavor compounds"
Wickerhamomyces NCBITaxon:599737 · TaxonMech · TraitMech
SECONDARY_FERMENTER
N/A
  • PMID:42121419 - SUPPORT (IN_VITRO)
    "13 genera (Aspergillus, Bacillus, Lactobacillus, Leuconostoc, Pediococcus, Pichia, Saccharomyces, Trichosporon, Weissella, Candida, Torulaspora, Clavispora, and Wickerhamomyces) were identified as core microbiota involved in the production of those flavor compounds"

Ecological Interactions

The graph shows only explicitly linked interaction participants. Community members without an asserted participant link are omitted; membership alone does not imply an interaction.

Ecological interaction network for Sesame-flavor Baijiu Fuqu SynCom (13-genus) Bipartite graph where circles represent taxa and non-circular symbols represent interactions. Rare or untyped interactions share the Other symbol; exact curated types remain in the interaction details.
Taxon
Other

Flavor-compound outcomes of SC3 versus comparator starters

The 13-genus SC3 had the highest flavor-compound diversity metric and 3-(methylthio)-1-propanal content among the three tested SynComs in simulated fermentation. The diversity metric was 0.45, 0.40 and 0.64 for SC1, SC2 and SC3, respectively; it is a chemical-content metric, not microbial richness. In large-scale production, SC3-derived Fuqu exceeded commercial Fuqu for the reported flavor metric and this sulfur-containing compound, while ethanol did not differ significantly. These are consortium-level outcomes, not demonstrated reciprocal microbial fitness, niche partitioning or a resolved exchange pathway.

Participating Taxa: Aspergillus, Bacillus, Lactobacillus, Leuconostoc, Pediococcus, Pichia, Saccharomyces, Trichosporon, Weissella, Candida, Torulaspora, Clavispora, Wickerhamomyces

Metabolites: 3-(methylthio)-1-propanal (CHEBI:49017 · MediaIngredientMech · CMMMech)

Evidence

  • PMID:42121419 - SUPPORT (IN_VITRO)
    "The resulting SynCom exhibited the highest flavor compound diversity (0.64) and 3-(methylthio)-1-propanal content (618.14 μg/kg) in simulative fermentation."
  • PMID:42121419 - SUPPORT (IN_VITRO)
    "The diversity of flavor compounds in SC1, SC2, and SC3 was 0.45, 0.40, and 0.64, respectively."
  • PMID:42121419 - SUPPORT (IN_VITRO)
    "The ethanol content showed no significant difference between SC3"

Knowledge gaps & discussions (1)

KNOWLEDGE_GAP OPEN Which interspecies mechanisms explain the SC3 flavor outcome?

The primary main text compares SC1, SC2 and SC3, then SC3-derived and commercial Fuqu. The five-genus base and addition of four LAB are assembly decisions supported by prior functional literature; they are not measured niche separation or metabolite transfer in this consortium. The source proposes fungal diversity and bacterial-fungal synergy as explanations. Retain that hypothesis and the positive flavor outcomes without assigning a specific donor, recipient or reciprocal growth benefit. No cultivation or optimization changes are made.

Attaches to: ecological_interactions#Flavor-compound outcomes of SC3 versus comparator starters

1 evidence item(s)
IN_VITRO PARTIAL PMID:42121419

the superior performance of SC3 may therefore be attributed to its higher fungal diversity, together with the synergistic interactions between its more diverse bacteria and fungi.

Source-proposed interpretation; exact interspecies mediation remains unresolved.

Growth Media

sorghum extract medium (simulated fermentation)

Preparation notes: Simulated fermentation of the assembled SynCom in sorghum extract medium. Yeast incubated at 30 °C for 24 h (150 rpm); bacteria (except L. acetotolerans) at 37 °C for 14 h (150 rpm); L. acetotolerans anaerobically at 37 °C for 3 d; A. oryzae at 30 °C for 5 d. Strains mixed at an equal concentration of 1 x 10^5 CFU/mL.

Evidence

PMID:42121419

"All strains were incubated in the sorghum extract medium. Yeast was incubated at 30 °C for 24 h with shaking at 150 rpm."

PMID:42121419

"Each strain in the SynComs was mixed at an equal concentration of 1 × 105 CFU/mL."

Cross-Mech Suite Links

Explore related entities across the CultureBotAI X-Mech knowledge bases:

HabitatMech: sesame flavor-type baijiu fermentation (Fuqu starter) ↗ TaxonMech: Aspergillus ↗ TraitMech: Aspergillus ↗ TaxonMech: Bacillus ↗ TraitMech: Bacillus ↗ TaxonMech: Lactobacillus ↗ TraitMech: Lactobacillus ↗ TaxonMech: Leuconostoc ↗ TraitMech: Leuconostoc ↗ TaxonMech: Pediococcus ↗ TraitMech: Pediococcus ↗ TaxonMech: Pichia ↗ TraitMech: Pichia ↗ CultureMech Growth Media ↗ PathwayMech Pathways ↗