U.S.-Malaysia Cooperative Research on the Chemistry of Mangrove Bark Tannins

该提案要求资金允许埃尔文·T·阿忠， 路易斯安那州立大学林业教授， Suminar S博士Achmadi，化学讲师，博戈尔 印度尼西亚农业大学，为期24年 几个月，一个关于化学的合作研究计划， 红树林树皮单宁。 将丙酮-水溶液 用于从木榄属的树皮中提取单宁， Rhizophora sp. -来自中国广东红树林的树种 印尼 粗单宁提取物将被分馏， 并且将表征所述级分的结构， 分子量分布和鉴定 组成化合物 这些化合物将进一步 研究作为特种化学品的潜在用途。 东南亚的红树林构成了 木材和树皮的可再生资源。 如果管理得当， 这种资源可以在不影响其 在河口生态学中的重要作用。 印度尼西亚占20%， 世界上的红树林。 红树林的树皮 是单宁的重要来源， 皮革制造和布料防腐处理。 红树林树皮也是活性酚的来源， 可用于各种特殊化学品 应用. 合作者将分离，描述， 并鉴定出红树林中的单宁。 美国和 印度尼西亚的合作者有成功的记录， 在提案领域的合作。 这个项目是 与科学促进发展目标相关的问题 国家方案，旨在提高 美国与发展中国家科学家的合作 和工程师们通过科学信息的交流， 想法、技能和技术，并通过在以下方面的合作 互利的问题。

This proposal requests funds to permit Dr. Elvin T. Choong, Professor of Forestry, Louisiana State University, to pursue with Dr. Suminar S. Achmadi, Lecturer in Chemistry, Bogor Agricultural University, Indonesia, for a period of 24 months, a program of cooperative research on the chemistry of mangrove bark tannins. An acetone-water solution will be used to extract tannins from the bark of Bruguiera sp. and Rhizophora sp. - tree species from mangrove forests of Indonesia. The crude tannin extracts will be fractionated, and the fractions will be characterized for structure, molecular weight distribution, and identification of constituent compounds. These compounds will be further studied for potential uses as specialty chemicals. The mangrove forests of Southeast Asia constitute a huge renewable resource of wood and bark. With proper management, this resource could be exploited without affecting its essential role in estuary ecology. Indonesia contains 20% of the world's mangrove forests. The bark from mangrove trees is an important source of tannins which are used for leather manufacture and preservative treatment of cloth. Mangrove bark is also the source of reactive phenols which are useful in a wide variety of specialty chemical applications. The collaborators will isolate, characterize, and identify tannins from mangrove trees. The U.S. and Indonesian collaborators have a record of successful collaboration in the field of the proposal. This project is relevant to the objectives of the Science in Developing Countries Program which seeks to increase the level of cooperation between U.S. and developing country scientists and engineers through the exchange of scientific information, ideas, skills, and techniques and through collaboration on problems of mutual benefit.