The production of fish meal and oil


 

 

 

 

 

Table of Contents


FAO FISHERIES TECHNICAL PAPER - 142
FOOD AND AGRICULTURE ORGANIZATION OF THE UNITED NATIONS

FAO, Fishery Industries Division
FAO Fisheries Department
Food and Agriculture Organization of the United Nations
Via delle Terme di Caracalla, Rome, Italy

FOOD AND AGRICULTURE ORGANIZATION OF THE UNITED NATIONS
Rome, 1986

The designations employed and the presentation of material in this publication do not imply the expression of any opinion whatsoever on the part of the Food and Agriculture Organization of the United Nations concerning the legal status of any country, territory, city or area or of its authorities, or concerning the delimitation of its frontiers or boundaries.

ISBN 92-5-102464-2

All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying or otherwise, without the prior permission of the copyright owner. Applications for such permission, with a statement of the purpose and extent of the reproduction, Should be addressed to the Director, Publications Division, Food and Agriculture Organization of the United Nations, Via delle Terme di Caracalla, 00100, Rome, Italy.

@ FAO 1986

This electronic document has been scanned using optical character recognition (OCR) software and careful manual recorrection. Even if the quality of digitalisation is high, the FAO declines all responsibility for any discrepancies that may exist between the present document and its original printed version.


Table of Contents


PREPARATION OF THIS DOCUMENT

l. INTRODUCTION

2. RAW MATERIAL

2.1 Resources
2.2 Composition of the Fish
2.3 Sampling of Raw Materials
2.4 Economic Evaluation of the Raw Material
2.5 Methods of Analysis
2.6 Deterioration of the Raw Fish

2.6.1 Autolytic deterioration
2.6.2 Oxidation
2.6.3 Microbial spoilage

2.7 Preservation of the Raw Material

2.7.1 Draining
2.7.2 Preservation by chilling
2.7.3 Refrigerated (chilled) water systems
2.7.4 Preservation by ice
2.7.5 Chemical preservation

3. THE PROCESS

3.1 The Principal Method of Processing

3.1.1 Heating ("cooking")
3.1.2 Pre-straining
3.1.3 Pressing
3.1.4 Centrifugation instead of pressing
3.1.5 Separation of press liquor
3.1.6 Oil polishing
3.1.7 Evaporation of stickwater
3.1.8 Drying

3.2 Milling and Storage of Fish Meal

3.2.1 Milling
3.2.2 Addition of antioxidant
3.2.3 Weighing out fish meal into bags
3.2.4 Cooling
3.2.5 Pelletizing
3.2.6 Storage

3.3 Special Methods of Processing

3.3.1 Centrifugal methods
3.3.2 Packaged fishmeal plants
3.3.3 Meal production without cooking
3.3.4 Simplified wet processing
3.3.5 Solvent extraction
3.3.6 Enzymatic treatment
3.3.7 Fish silage

3.4 Fish Protein Concentrates (FPC)

4. POLLUTION ABATEMENT

4.1 Pollution from Emission of Malodours
4.2 Pollution from Liquid Effluents

5. INSTRUMENTATION

6. STEAM PRODUCTION AND POWER PLANT

7. CONSUMPTION OF FUEL, ELECTRIC POWER AND WATER

7.1 Fuel Oil Consumption
7.2 Electric Power Consumption
7.3 Water Consumption

8. STAFF

8.1 Administration and Sales
8.2 Laboratory
8.3 Unloading and Transportation to the Plant
8.4 Manufacture, Bagging and Storage

9. INVESTMENT AND OPERATING COSTS

9.1 Investment Decision
9.2 Investment Cost and Size of Fishmeal Plant
9.3 Annual Production Costs

10. THE PRODUCTS

10.1 Fish Meal

10.1.1 Fishmeal production
10.1.2 Quality of fish meal related to raw material and conditions of manufacture and storage
10.1.3 Salmonella control
10.1.4 The nutrient content of fish meal
10.1.5 Analysis and quality assessment of fish meal
10.1.6 The role of fish meal in animal feeds
10.1.7 Commercial value of fish meal

10.2 Fish Oil

10.2.1 Fish oil composition
10.2.2 Fish oil properties
10.2.3 Edible applications of fish oils
10.2.4 Technical applications of fish oils
10.2.5 Commercial value of fish oils
10.2.6 Fish oil quality

11. REFERENCES