Qingdao, Shandong Province, boasts a long coastline and has a solid foundation in marine biological industries, with numerous research institutions and manufacturing enterprises gathered. The deep processing of marine biomass resources has become a local characteristic industry sector. The local marine processing industry, leveraging its regional industrial advantages, focuses on the green processing of seaweed polysaccharides, continuously exerting efforts in process upgrading, production control, and supply chain construction, exploring the green and low-carbon development path of the marine raw material industry.

　　The seaweed polysaccharide processing industry used to generate a lot of processing by-products in some production stages, and the energy consumption in the material handling process was relatively high. Green transformation is the common development direction for the entire industry. The traditional acid-base extraction process has a relatively low operational threshold, but it brings pressure for waste liquid treatment and is prone to changing the molecular structure of the polysaccharides, limiting the subsequent usage scenarios of the materials. Industry enterprises have begun to explore more gentle processing solutions, such as enzymatic extraction and physical-assisted extraction, gradually moving from the laboratory to large-scale production workshops.

　　In line with the overall development trend of the industry, the main entities in the local seaweed polysaccharide processing industry have iteratively upgraded their existing production processes, reducing the proportion of strong chemical reagents used, and adopting a mild processing mode with multiple process combinations, extracting the target components while maintaining the original molecular structure of the seaweed polysaccharides. For the processing wastewater generated during the production process, a supporting treatment system has been established, and it is disposed in accordance with environmental protection norms, reducing the impact of the production process on the surrounding environment, and practicing the development concept of green processing.

　　The stability of the raw material supply chain is the foundation for the survival and development of the seaweed polysaccharide production industry. The seaweed raw materials are significantly affected by the marine environment and the harvesting season. The internal components of seaweed harvested in different seasons fluctuate. The industry has established a stable raw material procurement channel and established long-term cooperation with coastal seaweed processing bases, conducting raw material entry inspection and screening, distinguishing different sources and categories of seaweed raw materials for separate processing, and reducing the impact of raw material fluctuations on the finished products from the source.

　　At the R&D level, the industry has formed a professional technical team and has linked with local marine research platforms to carry out technical research on the separation and purification, and grading preparation of seaweed polysaccharides, continuously optimizing process parameters. A standardized quality control laboratory has been set up on the production site to conduct multi-dimensional testing of raw materials, intermediate products, and finished products, and establish a complete production record, achieving full-process traceability of the products.

　　The opportunities and challenges of the marine biological raw material industry coexist. The market's acceptance of raw materials produced by green processes continues to increase. In the future, the industry will continue to refine the green processing technology of seaweed polysaccharides, improve the supply chain system, connect with domestic and overseas markets with stable raw material products, and help the Qingdao marine biological processing industry continuously improve and develop.