PHASE 2 DELIVERABLE
Extraction & Purification Blueprint
AMX-B01 — Geniposide-Enriched Purified Botanical API
Document Code: SCF-AMMONEX-HE-AMXB01-P2-0001
Trigger Executed: EXTRACT API
Development Stage: Botanical Extraction → Enrichment → Purification
Objective:
Develop a scalable, GMP-translatable extraction and purification process capable of consistently producing pharmaceutical-grade geniposide suitable for API development.
1.0 EXTRACTION STRATEGY OVERVIEW
Primary Objective
Isolate and enrich geniposide from authenticated Genipa americana fruit material while preserving chemical integrity and maximizing recovery.
Target API
AMX-B01
Primary Marker Compound: Geniposide
Purity Target:
≥95% (Discovery/Preclinical)
Future GMP Target: ≥98%
2.0 RAW MATERIAL PREPARATION
Source Material
Accepted Material
- Immature fruit
- Fruit pulp
Initial Processing
Step 1
Cleaning
Remove:
- Soil
- Plant debris
- Foreign matter
Step 2
Drying
Target:
Parameter | Specification |
Temperature | ≤50°C |
Final Moisture | ≤10% |
Purpose:
Preserve iridoid stability.
Step 3
Particle Size Reduction
Target:
0.5–2.0 mm powder
Purpose:
Improve extraction efficiency.
3.0 SOLVENT SELECTION MATRIX
Candidate Solvents
Solvent System | Geniposide Recovery | Regulatory Suitability | Rank |
Water | Moderate | Excellent | 3 |
30% Ethanol | High | Excellent | 2 |
50% Ethanol | Very High | Excellent | 1 |
70% Ethanol | High | Excellent | 2 |
Methanol | Very High | Poor for GMP product | Excluded |
Acetone | Moderate | Moderate | Excluded |
Selected Extraction Solvent
Hydroethanolic System
50% Ethanol : 50% Water
Rationale
- Strong geniposide solubility
- Favorable safety profile
- GMP compatibility
- Scalable manufacturing
4.0 PRIMARY EXTRACTION WORKFLOW
Stage A
Hydroethanolic Extraction
Parameters:
Variable | Initial Target |
Solvent ratio | 50:50 |
Temperature | 40–60°C |
Extraction time | 2–4 hr |
Cycles | 2–3 |
Stage B
Solid-Liquid Separation
Methods:
- Filtration
- Centrifugation
Deliverable:
Crude hydroethanolic extract
Stage C
Solvent Recovery
Method:
Vacuum concentration
Target:
Concentrated botanical extract
5.0 GENIPOSIDE ENRICHMENT WORKFLOW
Objective
Increase geniposide concentration while removing:
- Sugars
- Pigments
- Lipids
- Non-target polyphenols
Enrichment Step 1
Liquid-Liquid Partitioning
Fractions:
Fraction | Purpose |
Hexane | Remove lipids |
Ethyl acetate | Remove non-polar impurities |
Aqueous fraction | Retain geniposide-rich material |
Enrichment Step 2
Adsorption Resin Processing
Candidate Resins:
- HP-20
- XAD-7
- XAD-16
Purpose:
Concentrate iridoids.
Target Outcome
5–10-fold enrichment of geniposide.
6.0 FRACTIONATION STRATEGY
Preparative Fractionation
Technique
Preparative Reverse-Phase Chromatography
Monitoring
Analytical:
- HPLC
- UPLC
Collection Criteria
Fractions containing:
- Geniposide
- Related iridoids
7.0 PURIFICATION STRATEGY
Final Purification
Preferred Method
Preparative HPLC
Purification Target
Stage | Purity Goal |
Enriched Fraction | ≥60% |
Development API | ≥95% |
GMP API | ≥98% |
Acceptance Criteria
Single dominant chromatographic peak.
8.0 ANALYTICAL CHARACTERIZATION PROGRAM
Identity Testing
Required Methods
- HPLC
- LC-MS
- NMR
Marker Profile
Primary Marker
Geniposide
Secondary Markers
- Genipin
- Minor iridoids
Release Identity Criteria
Must match qualified reference standard.
9.0 YIELD OPTIMIZATION PROGRAM
Critical Process Variables
Variable | Optimization Target |
Harvest maturity | Maximum geniposide |
Drying conditions | Stability |
Solvent ratio | Recovery |
Extraction time | Yield |
Resin loading | Enrichment efficiency |
Experimental Design
DOE Program
Factors:
- Solvent ratio
- Temperature
- Time
- Solid-to-liquid ratio
Goal:
Maximum geniposide recovery.
10.0 INTERMEDIATE API SPECIFICATIONS
AMX-B01-I
Enriched Botanical Intermediate
Parameter | Specification |
Geniposide Content | ≥60% |
Moisture | ≤5% |
Residual Solvent | Within limits |
Microbial Load | Within limits |
AMX-B01-API
Purified Botanical API
Parameter | Specification |
Geniposide Purity | ≥95% |
Identity | Confirmed |
Residual Solvents | Within limits |
Heavy Metals | Within limits |
Microbiology | Compliant |
11.0 SCF PROCESS ROLE ASSIGNMENT
SCF Function | Process Role |
Targeted Drug Action | Geniposide enrichment |
Pharmacokinetic Optimization | Removal of interfering matrix components |
Metabolic Efficiency | Preservation of active iridoids |
Resistance Prevention | Retention of supportive minor iridoids (research evaluation only) |
Safety Profile | Removal of contaminants and impurities |
Aligned with SCF Extraction of Biological Molecules methodology.
12.0 PHASE 2 DECISION GATE
Success Criteria
✓ Authenticated source material
✓ Reproducible extraction process
✓ Geniposide enrichment demonstrated
✓ Purification pathway established
✓ Analytical identity confirmed
Status
ADVANCE TO PHASE 3
Required Next Trigger
CHARACTERIZE
Phase 3 will generate:
- Complete API characterization package
- HPLC fingerprint specification
- LC-MS identity profile
- NMR confirmation package
- Release specifications
- Stability-indicating methods
- Reference standard qualification program
MASTER REGISTRY INDEX
SCF-AMMONEX-HE-AMXB01-P2-0001 — Extraction & Purification Blueprint
SCF-AMMONEX-HE-AMXB01-EXT-0002 — Hydroethanolic Extraction Program
SCF-AMMONEX-HE-AMXB01-ENR-0003 — Geniposide Enrichment Program
SCF-AMMONEX-HE-AMXB01-PUR-0004 — Purification Strategy
SCF-AMMONEX-HE-AMXB01-ANL-0005 — Analytical Development Program
SCF-AMMONEX-HE-AMXB01-P3-0006 — Characterization Program Initiation