Posibilidades de producción de tanino mediante la utilización de hojas y cortezas de diferentes especies forestales de los géneros Rhizophora, Eucalyptus, Pinus, Casuarina y otros
Article Sidebar
Main Article Content
Abstract
The bark of the red mangrove (Rhizophora mangle Lin). has been used i n Cuba as raw material for the production of tannin. It is estimated that in the Cuban Archipelago there exist 170 000 há of this species. In industrialized countries tannin is produced by using as raw material the bark and leaves of species belonging to the genus Eucalyptus, Pinus, Caesal- pinia Acacia; Terminalia, Casuarina, etc. Up. to 1965 in Cuba, Eucalyptus have been planted in 59 112 há with 118 224 000 trees. The main species utilized has been E. saligna. It is estimated that one hectare planted with E. saligna may produce about 8 ton of foliage, and that 7,2 ton of leaves could produce 1 ton of semi-solid tannin. It is estimated that in Cuba there are some 100 000 há of natural pines and up to 1967 there have been planted 26 775 hectare;. At present pine forests are not ready to be economically exploited for tannin production, but they certainly constitute an important source of raw material for future utilization. Terminalia catappa Lin. (indian almond wood) grows well in our Country, and in certain places it becomes an invader species. Casuarina, mainly Casuarina equisetifolia Forst. grows remarkably well in the different soils of Cuba. Up to 1965 there had been planted 13 000 há with Casuarina equisetiolia, and this species is stiIl being pianted, specially for shelterbelts
Downloads
Article Details
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
Those authors who have publications with this journal accept the following terms of the License Attribution-NonCommercial 4.0 International (CC BY-NC 4.0):
You are free to:
- Share — copy and redistribute the material in any medium or format
- Adapt — remix, transform, and build upon the material
The licensor cannot revoke these freedoms as long as you follow the license terms.
Under the following terms:
- Attribution — You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
- NonCommercial — You may not use the material for commercial purposes.
- No additional restrictions — You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.
The journal is not responsible for the opinions and concepts expressed in the works, they are the sole responsibility of the authors. The Editor, with the assistance of the Editorial Committee, reserves the right to suggest or request advisable or necessary modifications. They are accepted to publish original scientific papers, research results of interest that have not been published or sent to another journal for the same purpose.
The mention of trademarks of equipment, instruments or specific materials is for identification purposes, and there is no promotional commitment in relation to them, neither by the authors nor by the publisher.