IFI-A · Tea-Black Fermentation

Specimen SS-F-AST-857 // ASTRINGENCY · IFI-A

Tea-Black Fermentation III-AG-A

Camellia sinensis

Tea

Tier IIITea-Black Fermentation

Target Trait

2.5×

fold-change

Theaflavin/thearubigin equivalent oxidative coupling index

Technical Specifications

SKU

SS-F-AST-857

Genomic Edits

6

GC Content

43.7%

Construct Length

3,542 bp

Promoter System

Tissue-specific 2A11

Expression System

Agrobacterium-mediated T-DNA

Host Strain

EHA105

Receptor Target

Polyphenol-astringency axis

IFI Score

250

Pathway Edits

  • PPO1 overexpression (polyphenol oxidase 1) for catechin ortho-quinone formation and theaflavin initiation
  • LAC3 laccase amplification for complementary oxidative coupling of flavan-3-ol substrates
  • CYP78A5 upregulation for subsidiary oxidative modification of flavan-3-ol substrates
  • peroxidase-1 co-expression for H2O2-dependent oxidative coupling in thearubigin formation
  • T-DNA right-border optimized integration cassette

Key Interventions

PPO1-driven catechin ortho-quinone formation for theaflavin benzotropolone ring condensationLAC3/peroxidase-1 complementary oxidative coupling for thearubigin analog formationCYP78A5 auxiliary oxidative modification for expanded oxidative astringency architectureAgrobacterium co-cultivation with acetosyringone induction

IFI Subscale Profile

IFI Profile

IFI-S
—
IFI-U
—
IFI-B
—
IFI-K
—
IFI-C
—
IFI-P
—
IFI-A
250
IFI-F
—

Use Case

Commercial black tea analog ingredient production, mid-range oxidative coupling R&D, beverage black tea formulation.

License

$1499 · Tier III License

Includes full construct sequence, CRISPR guide designs, pathway edit specifications, flux balance analysis, and IFI validation data.

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