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Sunday, 11 September 2016

Gums, resins and latexes of plant origin


FAO - Food and Agriculture Organization of the United Nations
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 92-5-103757-4
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, Viale dells Terme di Caracalla, 00100 Rome, Italy.
(c) FAO 1995 


Gums, resins and latexes are employed in a wide range of food and pharmaceutical products and in several other technical applications. They form an important group of non-wood forest products (NWFPs) and are the basis of a multi-billion dollar industry. These products, particularly gums, enter into world trade in a significant way and this is indicative of the potential of NWFPs for value addition at various stages from harvesting of raw materials to the end-uses. 
This publication deals with important gums, resins and latexes following a standard format, covering description and uses, world supply and demand levels, plant sources, collection and primary processing, value-added processing, other uses and developmental potential. 
This document was prepared by J.J.W. Coppen of the UK/ODA Natural Resources Institute, who is an authority on the subject. Formatting and proofreading of it were ably done by Elisa Rubini. Its preparation and publication was guided and supervised by C. Chandrasekharan, Chief, Non-Wood Products and Energy Branch. I am grateful to them for their contributions. 
Some of these products presently suffer competition from synthetic products. There is, however, clear evidence of re-emergence of awareness and interest in these natural products and it is expected that this publication can accelerate the process.  

Karl-Hermann Schmincke  
Forest Products Division 


BP British Pharmacopoeia 
CIF Cost, insurance and freight 
EC European Community 
EOA Essential Oil Association of USA 
FAO Food and Agriculture Organization of the United Nations 
FAQ Fair average quality 
FOB Free on board 
ha hectare 
HPS Hand picked selected 
ISO International Standardization Organization 
JECFA Joint FAO/WHO Expert Committee on Food Additives 
NAS National Academy of Sciences (USA) 
US$ United States dollar 
WHO World Health Organization 
In all Tables:

indicates nil 
indicates < 0.5 tonnes 
na indicates not available 

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