📚 Official Curriculum & AI Taxonomy Guide

Fish Processing Technology (Fisheries Science)

Deterministic two-level syllabus taxonomy (Subjects ➔ Chapters/Units + AI Keywords) with historical PYQ weightage and board examination patterns. Version: V1.

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Select Subject / Discipline:
All Subjects (Complete Syllabus) Fish Biochemistry Fish Curing, Value Addition and By-Products Low and High Temperature Preservation Microbiological and Quality Aspects of Fish and Fishery Products

⚙️ Exam Evaluation Pattern & Marking Scheme

Total Questions 100
Total Marks 300
Correct Answer +3
Negative Marking -1/3
Option Format: 5 Options (5th Option Mandatory: 'अनुत्तरित प्रश्न')

🤖 AI Extractor Directives & Mapping Rules

## Instructions for AI Question Extractor & Taxonomy Mapper

When extracting questions and generating Schema v2.0 JSON packages, the AI model MUST strictly adhere to the following deterministic taxonomy protocol:

### 1. Deterministic Ground-Truth ID Assignment
Every extracted question MUST be mapped using the exact database integer IDs from this specification:
- `subject_id`: Integer ID of the Part / Section (e.g., `64` for General Hindi).
- `subject_name`: Canonical title of the Part (e.g., `सामान्य हिन्दी`).
- `subject_slug`: Canonical slug of the Part (e.g., `general-hindi`).
- `chapter_id`: Integer ID from the **Topic ID** column (e.g., `451`).
- `chapter_name`: Canonical title from the **Topic Name** column.
- `chapter_slug`: Slug from the **Topic Slug** column.
- `subtopic_id`: Integer ID from the **Subtopics (Level 3)** column if an atomic subtopic matches, otherwise `null`.
- `subtopic_name`: Subtopic title if mapped, otherwise `null`.
- `subtopic_slug`: Subtopic slug if mapped, otherwise `null`.
- `key_concept`: The specific atomic concept tested by the question (e.g., 'वृद्धि स्वर संधि', 'नागौरी गाय की विशेषताएं', 'अमोनियम सल्फेट में नत्रजन प्रतिशत').

### 2. JSON Mapping Target Schema
```json
{
"subject_id": 64,
"subject_name": "सामान्य हिन्दी",
"subject_slug": "general-hindi",
"chapter_id": 451,
"chapter_name": "संधि एवं संधि-विच्छेद",
"chapter_slug": "sandhi",
"subtopic_id": null,
"subtopic_name": null,
"subtopic_slug": null,
"key_concept": "वृद्धि स्वर संधि",
"question_type": "mcq_single"
}
```

### 3. Core Extraction Rules
- **Strict Section Boundary Isolation**: Respect examination paper sections. Map Hindi questions strictly to Subject ID 64, Rajasthan GK questions to Subject ID 34, Agronomy questions to Subject ID 74, Horticulture to Subject ID 75, and Animal Husbandry to Subject ID 65. Never cross-map questions across disciplines.
- **Strict Canonical Hierarchy**: Map every question extracted from papers for this examination strictly to one of the canonical Units/Chapters listed in the tables below. Do not fabricate or invent new chapter names or IDs.
- **Question Format Auto-Detection**: Identify and classify the question format strictly:
- Standard 4 or 5 options with 1 correct key: `mcq_single`
- Contains Statement I and Statement II or multiple statements: `statement`
- Contains List I and List II or matching columns: `match_list`
- Requires chronological arrangement or step sequence: `chronological_order`
- Contains Assertion (A) and Reason (R): `assertion_reason`
- **Semantic Keyword Anchors**: Use the 'AI Recognition Keywords' listed in the tables as primary semantic triggers. Matching question stems and option terminologies against these keywords provides high-confidence taxonomy assignment.
- **Out of Syllabus Preservation**: If an extracted historical PYQ belongs to a topic marked with `[OUT_OF_SYLLABUS]`, map it to that designated unit and flag `is_out_of_current = 1`. This preserves year-on-year historical practice.
- **Bilingual Terminology**: Ensure both Hindi (Devanagari) and English scientific terms are recognized according to the bilingual titles and keyword lists provided.

Curriculum Units & AI Recognition Dictionary

Fish Biochemistry

5 Chapters / Units
Keywords: Fish Muscle Proteins; Myofibrillar Actomyosin; Sarcoplasmic Myogen; Stroma Collagen; Mucopolysaccharides Glycosaminoglycans; Protein Denaturation
Keywords: Marine Lipids; Polyunsaturated Fatty Acids PUFA; EPA and DHA; Cyclooxygenase Prostaglandins; Lipid Auto-Oxidation; Alpha Tocopherol; Astaxanthin Antioxidant
Keywords: Non-Protein Nitrogen NPN; Trimethylamine Oxide TMAO; Urea in Elasmobranchs; Octopine Cephalopods; Biogenic Amines; Histamine; Putrescine; Cadaverine; Spermidine
Keywords: Post-Mortem Rigor Mortis; Anaerobic Glycolysis; ATP Degradation Nucleotides; Cathepsin Enzymes; Calpain Proteolysis; Fish Bleeding Effects
Keywords: High Performance Liquid Chromatography HPLC; Gas Chromatography Mass Spectrometry GCMS; Particle Size Stationary Phase; Volatile Compounds Separation; Flame Photometry

Fish Curing, Value Addition and By-Products

6 Chapters / Units
Keywords: Salt Curing of Fish; Dry Salting Wet Salting; Water Activity aw; Equilibrium Relative Humidity ERH; Moisture Sorption Isotherms; Halophilic Bacteria; Stockfish
Keywords: Fish Smoking; Hot and Cold Smoking; Polycyclic Aromatic Hydrocarbons PAH; 3 4 Benzopyrene Carcinogen; Wood Smoke Phenolic Preservatives; Equipment Disinfection Iodine
Keywords: Fermented Fishery Products; Ngari Hentak Shidal North East India; Low Salt Fermentation; Fish Silage Preparation; Organic Acids Formic Propionic Acid; Autolytic Liquefaction
Keywords: Surimi Production; Water Leaching Sarcoplasmic Removal; Cryoprotectants Sucrose Sorbitol Polyphosphates; Heat Induced Gelation; Kamaboko Fried Fish Cake; Texturized Analogs
Keywords: Chitin and Chitosan Extraction; Demineralization Hydrochloric Acid; Deproteinization Sodium Hydroxide; Deacetylation; Squalene Shark Liver Oil; Pearl Essence Guanine Scales; Ambergris
Keywords: Marine Hydrocolloids; Agar Agar Gelidium Gracilaria; Alginates Brown Seaweeds; Carrageenan Chondrus crispus Irish Moss; Extruded Fish Products; Marine Nutraceuticals

Low and High Temperature Preservation

5 Chapters / Units
Keywords: Fish Chilling Kinetics; Superchilling Partial Freezing; Slurry Flake Ice; Latent Heat of Fusion 80 kcal per kg; Polyurethane Insulation Fish Box; Thermal Conductivity
Keywords: Individual Quick Freezing IQF; Air Blast Freezing; Contact Plate Freezing; Cryogenic Freezing; Water Glazing of Frozen Blocks; Cryoprotectants
Keywords: Thermal Canning Operations; Exhausting Air Removal; Double Seam Overlap 50 Percent; Decimal Reduction Time D Value; Thermal Resistance Constant Z Value; Clostridium botulinum
Keywords: Tinplate Metallurgy; Sulphur Resistant SR Lacquer Zinc Oxide; Acid Resistant Lacquers; Can Seam Integrity; Cover Hook Body Hook Overlap; Can Corrosion
Keywords: Retort Pouches; Multilayer Lamination; Outer Polyester Middle Aluminium Foil Inner Cast Polypropylene CPP; Heat Sealability; Thermal Penetration in Pouches

Microbiological and Quality Aspects of Fish and Fishery Products

5 Chapters / Units
Keywords: Seafood Bacterial Pathogens; Vibrio parahaemolyticus; Vibrio cholerae; Salmonella Typhimurium; Listeria monocytogenes; Clostridium botulinum Type E; Enterohaemorrhagic E coli O157 H7
Keywords: Specific Spoilage Organisms SSO; Shewanella putrefaciens; Pseudomonas in Iced Tropical Fish; Quality Index Method QIM; Torrymeter; Trimethylamine TMA; Total Volatile Base Nitrogen TVBN
Keywords: Seafood Parasites; Anisakis simplex Nematode; Diphyllobothrium latum; Marine Biotoxins; Tetrodotoxin Pufferfish; Ciguatera Fish Poisoning; Paralytic Shellfish Poisoning PSP; Bivalve Depuration
Keywords: Food Additives; Potassium Sorbate Yeast Mold Control; Sodium Metabisulfite Melanosis Prevention; Heavy Metal Bioaccumulation Mercury Cadmium; Antibiotic Residues Chloramphenicol Nitrofurans
Keywords: Seven HACCP Principles; Hazard Analysis Critical Control Points; ISO 22000 Food Safety Management; Codex Alimentarius Fish Standards; FSSAI 2006; MPEDA ELISA Screening Certificate; Export Traceability
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