分子量、脱乙酰度与浓度对壳聚糖流变性影响
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摘要
壳聚糖在食品工业中常作为被膜剂使用,其流变性能是被膜过程的关键因素。该研究对不同分子量、脱乙酰度和浓度的壳聚糖溶液流变行为在0～300 s~(-1)剪切速率下进行考察,结果表明壳聚糖溶液的流变曲线呈闭合型滞后回路,滞后面积小,回复性强。壳聚糖黏度随分子量与浓度的提高及脱乙酰度的下降呈现上升趋势。在较低分子量和浓度下,壳聚糖溶液呈现剪切变稠特性,提高浓度与分子量会促使溶液从胀塑性流体向假塑性流体的转变。
Chitosan is widely used as a coating agent in food industry,and its rheological properties are a key factor in the coating process. The rheological behaviors with shear rates of 0-300 s-1 of chitosan film-forming solution with different molecular weights,degree of deacetylation and concentration were considered. The results showed that chitosan solution exhibited closed hysteresis loops with a small lagging area indicating a strong recovery capacity. The viscosity of chitosan increased with the increase of molecular weight and concentration and the decrease of degree of deacetylation. At lower molecular weight and concentration,the chitosan film-forming solution exhibited shear thickening characteristics. Increasing the concentration and molecular weight would promote the transition of the film-forming solution from the dilatant fluid to pseudoplastic fluid.
Chitosan is widely used as a coating agent in food industry,and its rheological properties are a key factor in the coating process. The rheological behaviors with shear rates of 0-300 s-1 of chitosan film-forming solution with different molecular weights,degree of deacetylation and concentration were considered. The results showed that chitosan solution exhibited closed hysteresis loops with a small lagging area indicating a strong recovery capacity. The viscosity of chitosan increased with the increase of molecular weight and concentration and the decrease of degree of deacetylation. At lower molecular weight and concentration,the chitosan film-forming solution exhibited shear thickening characteristics. Increasing the concentration and molecular weight would promote the transition of the film-forming solution from the dilatant fluid to pseudoplastic fluid.
引文
[1]张立英.壳聚糖的制备方法及研究进展[J].山东工业技术,2018(2):22
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[13]Zhuang C,Jiang Y,Zhong Y,et al.Development and characterization of nano-bilayer films composed of polyvinyl alcohol,chitosan and alginate[J].Food Control,2018,86:191-199
[14]蔡旭冉,顾正彪,洪雁,等.瓜尔胶和黄原胶对马铃薯淀粉及其变性淀粉糊化和流变性质的影响[J].食品科学,2011,32(17):22-26
[15]Razmkhah S,Razavi S M A,Mohammadifar M A.Dilute solution,flow behavior,thixotropy and viscoelastic characterization of cress seed(Lepidium sativum)gum fractions[J].Food Hydrocolloids,2017,63(2017):404-413
[16]胡圣飞,李慧,胡伟,等.触变性研究进展及应用综述[J].湖北工业大学学报,2012,27(2):57-60
[17]郭泽镔,陈玲,曾绍校,等.莲子淀粉糊流变特性的研究[J].中国粮油学报,2014,29(3):30-36
[18]王伟,徐德时.壳聚糖浓溶液流变性质研究---分子量的依赖性[J].高分子学报,1995(5):596-600
[19]Benchabane A,Bekkour K.Rheological properties of carboxymethyl cellulose(CMC)solutions[J].Colloid&Polymer Science,2008,286(10):1173-1180
[20]Lamarque G,Lucas J M,Christophe Viton A,et al.Physicochemical Behavior of Homogeneous Series of Acetylated Chitosans in Aqueous Solution:Role of Various Structural Parameters[J].Biomacromolecules,2005,6(1):131-142
[21]Berth G,Dautzenberg H.The degree of acetylation of chitosans and its effect on the chain conformation in aqueous solution[J].Carbohydrate Polymers,2002,47(1):39-51
[22]李永鹏,张红平,石荣铭,等.分子量及浓度对壳聚糖凝胶流变性能的影响研究[J].西南科技大学学报,2014,29(4):1-4
[23]陈皓生,陈大融,汪家道,等.一类特殊的非牛顿介质剪切稀化过程的实验研究[J].中国科学:技术科学,2007,37(3):339-343
[24]Liu W H,Yu T L,Lin H L.Shear thickening behavior of dilute poly(diallyl dimethyl ammonium chloride)aqueous solutions[J].Polymer,2007,48(14):4152-4165
[2]Rivero S,García M A,Pinotti A.Composite and bi-layer films based on gelatin and chitosan[J].Journal of Food Engineering,2009,90(4):531-539
[3]Olaru A M,Marin L,Morariu S,et al.Biocompatible chitosan based hydrogels for potential application in local tumour therapy[J].Carbohydrate Polymers,2018,179:59-70
[4]中华人民共和国国家卫生和计划生育委员会.GB2760-2014食品安全国家标准食品添加剂使用标准[S].北京:中国标准出版社,2014:90
[5]Hosseinnejad M,Jafari S M.Evaluation of different factors affecting antimicrobial properties of chitosan[J].International Journal of Biological Macromolecules,2016,85:467-475
[6]Liu J,Liu S,Wu Q,et al.Effect of protocatechuic acid incorporation on the physical,mechanical,structural and antioxidant properties of chitosan film[J].Food Hydrocolloids,2017,73:90-100
[7]Poverenov E,Danino S,Horev B,et al.Layer-by-Layer Electrostatic Deposition of Edible Coating on Fresh Cut Melon Model:Anticipated and Unexpected Effects of Alginate-Chitosan Combination[J].Food&Bioprocess Technology,2014,7(5):1424-1432
[8]Muhammed Y,Cengiz C.Antimicrobial lysozyme-chitosan coatings affect functional properties and shelf life of chicken eggs during storage[J].Journal of the Science of Food&Agriculture,2014,94(1):153-62
[9]李星科,姜启兴,夏文水.壳聚糖溶液的流变学性质及应用研究[J].食品工业科技,2011,32(2):65-68,72
[10]Cui H Y,Wu J,Li C Z,et al.Anti-listeria effects of chitosan-coated nisin-silica liposome on Cheddar cheese[J].Journal of Dairy Science,2016,99(11):8598-8606
[11]吴国杰,姚汝华.壳聚糖溶液流变学性质的研究[J].华南理工大学学报(自然科学版),1997,25(10):62-66
[12]盖恒军,胡开堂.涂料的流变性对最终涂层性质的影响[J].国际造纸,2002,21(5):37-39
[13]Zhuang C,Jiang Y,Zhong Y,et al.Development and characterization of nano-bilayer films composed of polyvinyl alcohol,chitosan and alginate[J].Food Control,2018,86:191-199
[14]蔡旭冉,顾正彪,洪雁,等.瓜尔胶和黄原胶对马铃薯淀粉及其变性淀粉糊化和流变性质的影响[J].食品科学,2011,32(17):22-26
[15]Razmkhah S,Razavi S M A,Mohammadifar M A.Dilute solution,flow behavior,thixotropy and viscoelastic characterization of cress seed(Lepidium sativum)gum fractions[J].Food Hydrocolloids,2017,63(2017):404-413
[16]胡圣飞,李慧,胡伟,等.触变性研究进展及应用综述[J].湖北工业大学学报,2012,27(2):57-60
[17]郭泽镔,陈玲,曾绍校,等.莲子淀粉糊流变特性的研究[J].中国粮油学报,2014,29(3):30-36
[18]王伟,徐德时.壳聚糖浓溶液流变性质研究---分子量的依赖性[J].高分子学报,1995(5):596-600
[19]Benchabane A,Bekkour K.Rheological properties of carboxymethyl cellulose(CMC)solutions[J].Colloid&Polymer Science,2008,286(10):1173-1180
[20]Lamarque G,Lucas J M,Christophe Viton A,et al.Physicochemical Behavior of Homogeneous Series of Acetylated Chitosans in Aqueous Solution:Role of Various Structural Parameters[J].Biomacromolecules,2005,6(1):131-142
[21]Berth G,Dautzenberg H.The degree of acetylation of chitosans and its effect on the chain conformation in aqueous solution[J].Carbohydrate Polymers,2002,47(1):39-51
[22]李永鹏,张红平,石荣铭,等.分子量及浓度对壳聚糖凝胶流变性能的影响研究[J].西南科技大学学报,2014,29(4):1-4
[23]陈皓生,陈大融,汪家道,等.一类特殊的非牛顿介质剪切稀化过程的实验研究[J].中国科学:技术科学,2007,37(3):339-343
[24]Liu W H,Yu T L,Lin H L.Shear thickening behavior of dilute poly(diallyl dimethyl ammonium chloride)aqueous solutions[J].Polymer,2007,48(14):4152-4165