Safety / Toxin Handling · Controlled Procedure

VC-SOP-0312 — Alkaloid & Toxin Extraction (Phyto-Synthesis Bay)

The controlled batch process for extracting, concentrating, and quantifying alkaloid and toxin compounds from harvested cultivar biomass in the Phyto-Synthesis Bay, including yield targets, exposure limits, and waste handling.

SOP ID: VC-SOP-0312 Rev: E Effective: 2091-04-09 Next Review: 2093-04-09 Owner: Lead Chemist (OPS-PSB) Approver: Dr. P. L. Isley, CBO Class: Safety / Toxin Handling

1. Purpose

To define the batch extraction process by which target compounds are recovered from cultivar biomass in the Toxin Yield Reactor at consistent yield and purity, with full personnel protection and traceable batch records. This pipeline produces the facility's primary revenue product and is held to GMP-equivalent rigor.

2. Scope

Applies to OPS-PSB chemists and technicians operating the Phyto-Synthesis Bay reactors R-1 through R-4. In scope: maceration, solvent extraction, concentration, assay, and packaging of alkaloid/toxin batches from GCL-2 through GCL-4 source biomass. Out of scope: cultivation (VC-SOP-0101); live GCL-4 specimen handling (VC-SOP-0204).

3. Definitions

Term	Definition
Batch	A discrete extraction lot under a unique `PSB-B-xxxx` record, traceable to source accession.
Yield	Recovered target compound mass ÷ theoretical maximum, expressed as a percentage.
OEL	Occupational Exposure Limit — 8-hour TWA airborne concentration ceiling.
Mother Liquor	Spent solvent fraction after target recovery; routed to neutralization.

4. Responsibilities

Role	Responsibility
Lead Chemist (Owner)	Owns SOP; approves batch release; signs yield/assay disposition.
Bay Technician	Executes the batch; records parameters; manages waste streams.
Safety Officer	Confirms PPE/OEL compliance; monitors bay air; owns exposure response.
CHLORA	Controls reactor setpoints; logs batch telemetry; trips interlocks on excursion.

5. Exposure Limits

The Phyto-Synthesis Bay holds the following Occupational Exposure Limits. Bay air is continuously sampled; any reading above the Action Level forces respirator escalation per VC-SOP-0301.

Compound Class	OEL (8h TWA)	Action Level	Required PPE
Tropane alkaloids	`2 µg/m³`	`1 µg/m³`	P3 respirator, nitrile, splash apron
Cardiac glycosides	`5 µg/m³`	`2.5 µg/m³`	P3 respirator, double nitrile
Pyrrolizidine alkaloids	`0.5 µg/m³`	`0.2 µg/m³`	Supplied-air hood, full suit
GCL-4 weaponized extract	`0.05 µg/m³`	`0.02 µg/m³`	Level-A SCBA per VC-SOP-0204

Action Level response. A confirmed bay-air reading at or above any Action Level triggers a T2 escalation, immediate respirator escalation, and a hold on all open batches until the source is identified and the reading falls below 50% of the Action Level.

6. Yield Targets

Tropane Batch Yield82%target ≥ 78%

Glycoside Batch Yield75%target ≥ 70%

Assay Purity98.4%spec ≥ 97.0%

Weekly Bay Output318.4 kg▲ 12% vs plan

7. Materials & Equipment

Source biomass with verified accession traceability and harvest release (VC-SOP-0101)
Toxin Yield Reactor (R-1…R-4), CHLORA-controlled, last-cleaned record current
Extraction solvent stock, lot-verified and within expiry
PPE per the Exposure Limits table and VC-SOP-0301
Assay instrument (calibrated < 7 d), batch record terminal
Neutralant reservoir and labeled toxic-waste containers (VC-SOP-0318)

8. Procedure

8.1 Batch Setup

Open a new PSB-B-xxxx batch record; scan source biomass; CHLORA links accession lineage.
Confirm reactor is clean and the correct solvent lot is staged.
Safety Officer verifies bay air below Action Level and PPE matches the compound class.

8.2 Maceration & Extraction

Charge biomass and solvent at the species ratio (default 1:8 w/v).
Run extraction at controlled parameters:
- Temperature: 45 ± 2 °C (do not exceed 50 °C — thermal degradation)
- Agitation: 120 rpm
- Duration: 4 h (tropane) / 6 h (glycoside)
- Reactor pressure: ambient, vented to bay scrubber
CHLORA logs the parameter trace continuously; any excursion trips a batch hold.

In-process checkpoint. Draw an in-process sample at the 2 h mark; confirm extraction progressing to within 10% of the expected curve. A stalled curve indicates spent solvent or under-macerated biomass — investigate before continuing.

8.3 Separation & Concentration

Separate the extract from solids; route solids to solid toxic-waste.
Concentrate the extract under reduced pressure to target volume; capture mother liquor.
Record concentrate mass and provisional yield.

8.4 Assay & Release

Pull a representative sample; run the compound assay.
Confirm purity meets spec (≥ 97.0%) and yield meets target.
Lead Chemist dispositions: Release, Rework, or Reject. Reject lots are neutralized in full.
Package released product; CHLORA closes and archives the batch record.

9. Batch Records

Every batch carries a complete PSB-B-xxxx record retained 10 years, containing:

Field	Captured
Source accession lineage	Auto (CHLORA) at setup
Solvent lot & ratio	Technician + auto-verify
Parameter trace (temp/rpm/time)	CHLORA continuous
In-process & final assay	Instrument export
Yield & purity	Computed at release
Waste reconciliation	Technician at close-out
Disposition & signature	Lead Chemist

10. Waste Handling

Mother liquor & spent solvent: route to the neutralant reservoir; never to facility drains.
Solid biomass residue: seal in labeled toxic-waste containers; mass logged against the batch.
Neutralization: process all liquid waste per VC-SOP-0318 until the compound assay reads below disposal limit.
Reconciliation: total recovered + waste mass must close to within ±3% of charged mass; investigate any larger gap as potential uncontained release.

11. Records

PSB-B-xxxx batch record (retained 10 years)
Bay-air OEL monitoring log
Yield, assay, and disposition records
Waste neutralization & reconciliation records (VC-SOP-0318)

12. References

VC-SOP-0101 — Specimen Cultivation Cycle (source biomass)
VC-SOP-0204 — GCL-4 Containment & Handling
VC-SOP-0301 — PPE Selection Matrix
VC-SOP-0307 — Exposure First Response
VC-SOP-0318 — Toxic Waste Neutralization & Disposal
Botanical Metrics — yield & purity definitions

13. Revision History

Rev	Date	Author	Summary
A–C	2087–2089	Dr. V. Nerium	Initial issue; reactor parameter standardization.
D	2090-07-15	Lead Chemist	Added OEL exposure table and Action Level response.
E	2091-04-09	Lead Chemist	CHLORA batch-trace integration; waste reconciliation tolerance ±3%. CBO approval.