疏水改性玉米麸皮阿拉伯木聚糖的性能研究

doi:10.13218/j.cnki.csdc.2018.03.003

摘要/Abstract

摘要： 采用碱-过氧化氢法从玉米麸皮中提取碱溶性阿拉伯木聚糖(AX),然后分别用1-溴代丁烷、1-溴代十二烷和1-溴代十六烷对其进行疏水改性得到两亲性的烷基化阿拉伯木聚糖(C_n-AX)。利用荧光分子探针、动态光散射、扫描电子显微镜和流变仪对C_n-AX水溶液的性质进行研究,发现C_n-AX在一定质量浓度时水溶液中形成缔合聚集体。疏水缔合使C_n-AX水溶液的黏度高于AX水溶液。此外,通过制备一系列O/W型乳液,对AX和C_n-AX的乳化能力进行了评价。结果表明,乳液的稳定性受C_n-AX的烷基链长度和质量分数的影响,并且C₁₆-AX的乳化性能优于常用的Tween 80。

关键词: 阿拉伯木聚糖, 疏水改性, 两亲性, 疏水缔合, 乳化能力

Abstract: Alkali-soluble arabinoxylan (AX) was extracted from corn bran by alkali-hydrogen peroxide method.Then,the amphiphilic alkylated arabinoxylans (C_n-AX) were obtained by hydrophobic modification of the AX with 1-bromobutane,1-bromododecane,and 1-bromohexadecane,separately.Performance of aqueous solution of the AX and hydrophobic modified AX (the C_n-AX) was investigated by fluorescent molecular probe,dynamic light scattering,scanning electron microscopy,and rheometer.Results show that the C_n-AX can form associated aggregates above a certain mass concentration in solution.The hydrophobic association led to a higher viscosity of the aqueous solutions of C_n-AX than that of aqueous solution of AX.In addition,the emulsifying power of the AX and C_n-AX was evaluated by preparing a series of oil-in-water emulsions.Results show that their emulsion stability is influenced by the length of alkyl chain and the mass fraction of the C_n-AX.The emulsifying power of C_n-AX prepared with 1-bromohexadecane is better than that of Tween 80,which is commonly used.

Key words: arabinoxylan, hydrophobic modification, amphipathy, hydrophobic association, emulsifying power

中图分类号:

TQ423

陈凤凤, 杨成. 疏水改性玉米麸皮阿拉伯木聚糖的性能研究[J]. 日用化学工业, 2018, 48(3): 134-139.

CHEN Feng-feng, YANG Cheng. Performance of hydrophobic modified corn bran arabinoxylan[J]. China Surfactant Detergent & Cosmetics, 2018, 48(3): 134-139.

参考文献

[1] Bigand V,Pinel C,Da-Silva-Perez D,et al.Cationisation of galactomannan and xylan hemicelluloses [J].Carbohydrate Polymers,2011,85(1):138-148.
[2] Ebringerova O,Heinze T.Xylan and xylan derivatives-biopolymers with valuable properties [J].Macromolecular Rapid Communications,2000,21(9):542-556.
[3] Biliaderis C G.Effect of arabinoxylans on bread-making quality of wheat flours [J].Food Chemistry,1995,53(2):165-171.
[4] Courtin C M,Delcour J A.Arabinoxylans and endoxylanases in wheat flour bread-making [J].Journal of Cereal Science,2002,35(3):225-243.
[5] Zhou S,Liu X,Guo Y,et al.Comparison of the immunological activities of arabinoxylans from wheat bran with alkali and xylanase-aided extraction [J].Carbohydrate Polymers,2010,81(4):784-789.
[6] Izydorczyk M S,Biliaderis C G.Cereal arabinoxylans:advances in structure and physicochemical properties [J].Carbohydrate Polymers,1995,28:33.
[7] Edwards S,Chaplin M F,Blackwood A D,et al.Primary structure of arabinoxylans of ispaghula husk and wheat bran [J].Proceedings of the Nutrition Society,2003,62(1):217-222.
[8] Ordaz-Ortiz J J,Aulnier L.Structural variability of arabinoxylans from wheat flour.Comparison of water-extractable and xylanase-extractable arabinoxylans [J].Journal of Cereal Science,2005,42(1):119-125.
[9] Yadav M P,Johnston D B,Hicks K B.Corn fiber gum:New structure/function relationships for this potential beverage flavor stabilizer [J].Food Hydrocolloids,2009,23(6):1488-1493.
[10] Yadav M P,Parris N,Johnston D B,et al.Corn fiber gum and milk protein conjugates with improved emulsion stability [J].Carbohydrate Polymers,2010,81(2):476-483.
[11] Zheng S,Sugita S,Hirai S,et al.Protective effect of low molecular fraction of MGN-3,a modified arabinoxylan from rice bran,on acute liver injury by inhibition of NF-κB and JNK/MAPK expression [J].International Immunopharmacology,2012,14(4):764-769.
[12] Ghoneum M,Abedi S.Enhancement of natural killer cell activity of aged mice by modified arabinoxylan rice bran (MGN-3/Biobran) [J].Journal of Pharmacy and Pharmacology,2004,56:1581.
[13] Guo Yandan,Cui Weiyi,Sun Peidong,et al.Hydrophobic modification of corn bran arabinoxylan [J].Applied Chemical Industry,2011,40(11):1970-1972.
[14] Rose D J,Patterson J A,Hamaker B R.Structural differences among alkali-soluble arabinoxylans from maize (Zea mays),rice (Oryza sativa),and wheat (Triticum aestivum) brans influence human fecal fermentation profiles [J].Journal of Agricultural and Food Chemistry,2010,58:493.
[15] Yang J S,Jiang B,He W,et al.Hydrophobically modified alginate for emulsion of oil in water [J].Carbohydrate Polymers,2012,87:1503.
[16] Chen M,Chen Y,Liu X.Study on thermosensitive poly(N-vinylisobutyramide) grafted polystyrene nanoparticles [J].Acta Polymerica Sinica,2002,4:447.
[17] Dualeh A J,Steiner C A.Hydrophobic microphase formation in surfactant solutions containing an amphiphilic graft copolymer [J].Macro-molecules,1990,23:251.
[18] Winnik F M,Winnik M A,Tazuke S,et al.Synthesis and characterization of pyrene-labeled hydroxypropyl cellulose and its fluorescence in solution [J].Macromolecules,1987,20:38.