As the development and utilization of marine biological resources continue to evolve towards a green and sustainable direction, the manufacturing of green seaweed polysaccharides is undergoing a full-chain technological upgrade from raw material collection, processing extraction to product application. Unlike the earlier extraction methods that relied on chemical reagents and high energy consumption, the current mainstream path in the industry is gradually focusing on enzymatic hydrolysis processes, membrane separation technologies, and water-based green solvents, aiming to reduce the environmental impact of the manufacturing process while improving resource utilization efficiency.

　　At the raw material end, the scale of large-scale seaweed cultivation, represented by brown algae, red algae and green algae, has steadily expanded, providing a stable raw material foundation for the seaweed polysaccharide industry. Although the traditional acid and alkali extraction method is mature, it has some prominent problems such as equipment corrosion, generation of high-salt wastewater, and destruction of some heat-sensitive components in the seaweed. To address this industry pain point, several domestic research institutions and enterprises have jointly carried out research on enzymatic extraction. By screening specific seaweed polysaccharide-degrading enzymes and constructing a multi-enzyme co-catalytic system, the selective decomposition of seaweed cell walls can be achieved, thereby releasing the polysaccharide components under relatively mild conditions. This process not only reduces the input of chemicals such as acids and alkalis and subsequent neutralization treatment steps, but also significantly reduces the chemical oxygen demand indicators in wastewater discharge.

　　At the manufacturing level, some enterprises have established continuous production lines that integrate cleaning, crushing, enzymatic hydrolysis, membrane separation, and drying. The introduction of membrane separation technology enables the separation and collection of polysaccharide components of different molecular weight ranges, providing a technical foundation for subsequent product segmentation. At the same time, physical processing methods such as spray drying and freeze drying gradually replace traditional hot air drying, while maintaining the physical integrity of the seaweed polysaccharides and reducing the structural changes caused by high temperatures.

　　It is worth noting that the by-products generated during the production of green seaweed polysaccharides, such as seaweed residue, have also begun to be incorporated into the path of resource utilization. Some enterprises have processed seaweed residue through fermentation and turned it into an organic soil conditioner, which is used to improve soil aggregate structure and water retention capacity, forming a closed loop of "seaweed - polysaccharide - residue back to the field". This comprehensive component utilization model not only reduces the disposal cost of waste but also provides a replicable demonstration path for the green transformation of the seaweed processing industry. For Qingdao Aisier Biotechnology Co., Ltd., paying attention to and absorbing these entire chain green manufacturing experiences will help form a basis for differentiated competition in product development and supply chain management.