Sodium alginate wani abu ne na hako iodine da mannitol daga algae mai launin ruwan kasa kamar kelp ko ciyawa. Kwayoyinsa sun ?unshi β - D-mannuronic acid (M) da α - L-guluronic acid (G) wa?anda aka ha?a ta (1 → 4) shaidu. Sodium alginate aqueous bayani yana da babban danko kuma an yi amfani dashi azaman thickener, stabilizer, emulsifier, da dai sauransu a cikin abinci. Sodium alginate abinci ne mara guba wanda aka ha?a a cikin Amurka Pharmacopeia tun farkon 1938. Sodium alginate ya ?unshi babban adadin - COO -, wanda zai iya nuna halin polyanionic a cikin bayani mai ruwa kuma yana da wani mataki na mannewa. Ana iya amfani dashi azaman mai ?aukar magani don magance ?wayar mucosal. A karkashin yanayin acidic, - Lokacin da COO - ya canza zuwa COOH, digiri na ionization yana raguwa, hydrophilicity na sodium alginate yana raguwa, sarkar kwayoyin halitta yana raguwa, kuma ?imar pH yana ?aruwa ?ungiyar COOH ta ci gaba da rabuwa, ?ara yawan hydrophilicity na sodium alginate da kuma shimfi?a sarkar kwayoyin. Saboda haka, sodium alginate yana da mahimmancin pH. Sodium alginate na iya samar da gel da sauri a ?ar?ashin yanayi mara kyau. Lokacin da cations kamar Ca2+ da Sr2+ sun kasance, Na+on G unit ?in za su yi musanya tare da cations daban-daban, kuma rukunin G zai yi tari don samar da tsarin hanyar sadarwa mai ha?in kai, don haka samar da hydrogel. Yanayin da sodium alginate ke samar da gel suna da laushi, wanda zai iya guje wa rashin kunna kwayoyi masu mahimmanci, sunadarai, sel, enzymes da sauran abubuwa masu aiki. Saboda wa?annan kyawawan kaddarorin, an yi amfani da sodium alginate sosai a cikin masana'antar abinci da filayen magunguna.