**7. Conclusions**

Currently, Brazilian algae aquaculture provides the industry with raw materials for various sectors of the industrial economy. Alginate is a polymeric material of biological origin with a wide range of applications already consolidated and with various applications in various industrial sectors. Several other applications have been developed due to biological origin, and it is considered to be safer and more effective than synthetic materials. Thus, it is necessary to analyses the place of origin of the species in question, that is, to be used for the extraction of alginate and its legal framework. Since alginate extracted from algae is considered a product of their metabolism. Therefore, if the extraction species has its origin in Brazil, it is within the scope of Law 13.123/2015 and its implications. Additionally, ongoing research or emerging trends related to alginate applications could be considered potential challenges or areas for improvement in the current algae aquaculture practices, and alginate extraction processes are able to offer a more comprehensive view. It enriches understanding of the significance and potential advancements in Brazilian algae aquaculture and alginate utilization.
