IFI-A · Polyphenol Oxidase Modulation

Specimen SS-F-AST-507 // ASTRINGENCY · IFI-A

Polyphenol Oxidase Modulation IV-BL-A

Camellia sinensis

Tea

Tier IVPolyphenol Oxidase Modulation

Target Trait

2.55×

fold-change

PPO activity-controlled oxidative astringency modulation index

Technical Specifications

SKU

SS-F-AST-507

Genomic Edits

6

GC Content

45.6%

Construct Length

3,623 bp

Promoter System

CaMV 35S / Ubiquitin

Expression System

Biolistic transformation

Host Strain

Particle Gun

Receptor Target

Polyphenol-astringency axis

IFI Score

255

Pathway Edits

  • PPO1-alt overexpression (activity-enhanced polyphenol oxidase allele) for controlled catechin oxidation
  • PPO2-RNAi silencing to suppress uncontrolled browning from PPO2 activity
  • LAC1 laccase upregulation for complementary catechin ortho-quinone formation
  • TDC co-expression (tryptophan decarboxylase) for auxiliary oxidative substrate channeling
  • Biolistic tungsten-particle coating for leaf/seed explant delivery

Key Interventions

PPO1/PPO2 activity ratio control for precision-managed catechin oxidative couplingLAC1 laccase complementation for expanded oxidative astringency architecturePPO2-RNAi browning suppression for astringency enhancement without oxidative browning artifactsHigh-pressure helium particle acceleration at 1100 psi

IFI Subscale Profile

IFI Profile

IFI-S
—
IFI-U
—
IFI-B
—
IFI-K
—
IFI-C
—
IFI-P
—
IFI-A
255
IFI-F
—

Use Case

Industrial oxidative tea astringency ingredient production, premium black tea analog manufacturing, beverage processing R&D.

License

$3999 · Tier IV License

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

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