Synthetic SAPs are not environmentally friendly as they could lead to the issue of microplastic pollution. Their efficiency in water retention, the regulated release of nutrients, and protection from root damage, are some of the essential benefits. This is making them necessary tools in advanced agriculture and horticulture for improved plant growth and crop yield. But as they are synthesized from a plastic polymeric material, they are not biodegradable and create environmental pollution. Alternative biopolymeric material for SAP could be obtained from various biomasses and biochemical reactions. Another candidate that is receiving much attention for the source of biopolymer for SAP is Red Algae based Agar, Carrageenan, and other algae polysaccharides. They are already having various applications in the pharmaceutical, microbiological, food, and cosmetic industries. These same biopolymeric substances can act as a better tool in SAP and research interventions are in progress.
