1973년이 MARPOL의 채택 이래 상당한 경험들이 축적되었다. 그것들은 중요한 형태들의 다양한 부속서가 생성되게 하였으며, 이는 그것들을 더욱 이해하고 따르기 쉽게 하거나, 중요한 부속서의 형태들을 더 의미있게 만들도록 하기 위해서였다. 그런 변화들은 환경을 개선할 수 있는 제도들을 이끌것이며 실행하기 쉽고 정부들이 그 협약을 승인하기 좋도록 할 것이다. marpol 73/78은 106개국에 의해 승인되었고(1998.12.31까지)세계 선보량의 93.88%을 대표하고 있다.

Antioxidants of sesame have been reported to cure and prevent various diseases by means of diverse physiological activities, prevention of acidification in organisms, prevention of acidification and decay of lipids, cholesterol depression, preventive effects on chemical breast cancer, skin beauty and senescence inhibition, and so on. Recognizing their significance to health and disease prevention, researchers in Japan and America have given so much importance to study antioxidants in the last decade. In addition, they are actively pursuing studies on production, processing for food use and development of new varieties that have high antioxidant content. Recently, researchers in Korea have shown the same interest and have conducted similar studies, however, the importance of the following basic issues must be recognized to guide in future activites : First, improvement of sesame quality must be done to raise the contents of not only the fat and fatty acid but also sesamin, sesamolin and sesaminol glucoside. For the use of these components it is necessary to study the gentic pattern and individual selections developed from minimum sample size and fast lipid analysis techniques. Second, sesaminol of sesame has a remarkable function in preventing acidification and so sesame can be utilized as a food that prevents or delays aging caused by automatic acidification of fat. Therefore, for maximum medicinal benefit from sesame oil there is a need to develop food materials having new medicinal functions. Third, the sesamin and sesamolin content of sesame germplasms collected in Korea showed lower ranges of 0.04~~0.68 percent and 0.08~~0.68 percent respectively, while Japanese germ-plasm showed 1.9 percent maximum content of seasmin. Thus, germplasm collection and analysis of worldwide genetic resources are urgently needed.