食品工业科技2026，Vol.47Issue(18)：115-123,9.DOI:10.13386/j.issn1002-0306.2025080316
钙离子诱导的裂褶菌碱溶性多糖-海藻酸钠复合水凝胶凝胶特性及其抗氧化性
Characteristics and Antioxidant Capacity of Schizophyllum commune Alkali-soluble Polysaccharide-Sodium Alginate Composite Hydrogel Induced by Calcium Ion
摘要
Abstract
To address the issue of the poor mechanical properties and limited functionality of sodium alginate(Alg)gels,a composite hydrogel SCAP/Alg/Ca2+that uses Alg and Schizophyllum commune alkali-soluble polysaccharide(SCAP)as substrates was prepared by induction of Ca2+.The gelation mechanism and the effects of SCAP addition amounts on the characteristics and antioxidant activity of the composite hydrogel were investigated.The results showed that the SCAP/Alg/Ca2+composite hydrogel could be formed by the interactions of ionic bonds,hydrogen bonds and hydrophobic force.The composite hydrogel exhibited a highly ordered porous network structure with the addition of SCAP and Ca2+.When the SCAP addition amount was 3%,the water holding capacity of the composite hydrogel achieved 87.32%.At pH7.4,its swelling ratios were 45.56%(wet)and 2479.82%(freeze-dried),respectively.Rheological analysis revealed a significant enhancement in the storage modulus,increasing from 455.33 Pa for pure Alg hydrogel to 17768.56 Pa for the composite hydrogel,indicating improved rheological properties.The incorporation of SCAP and Ca2+did not affect the thermal stability of the composite hydrogel but effectively enhanced its antioxidant capacity.The scavenging rate of DPPH free radicals increased from 6.95%for pure Alg to 26.65%,while the scavenging rates of ABTS+and hydroxyl free radicals also improved by approximately 10%.Furthermore,the SCAP/Alg/Ca2+composite hydrogel may also exhibit pH-respon-siveness,maintaining structural integrity in gastric fluid while undergoing rapid degradation in intestinal fluid.The findings of this study provide a scientific basis and theoretical foundation for the biomedical carrier application of SCAP/Alg/Ca2+composite hydrogels.关键词
裂褶菌碱溶性多糖/海藻酸钠/Ca2+诱导/凝胶特性/pH响应性/抗氧化性Key words
Schizophyllum commune alkali-soluble polysaccharide/sodium alginate/Ca2+-induced/hydrogel characteris-tics/pH-responsiveness/antioxidant capacity分类
轻工纺织引用本文复制引用
马海娜,蔡杰,殷朝敏,范俐红,文静,谢芳,高虹,范秀芝,史德芳,黄志成..钙离子诱导的裂褶菌碱溶性多糖-海藻酸钠复合水凝胶凝胶特性及其抗氧化性[J].食品工业科技,2026,47(18):115-123,9.基金项目
"十四五"国家重点研发计划(2024YFD2100800) （2024YFD2100800）
湖北省重点研发计划项目(2024BBB028) （2024BBB028）
湖北省中央引导地方科技发展专项(2025EIA033) （2025EIA033）
湖北省食用菌体系加工岗位(2025HBSTX4-09). （2025HBSTX4-09）
