摘要
本课题重点研究壳聚糖/黄原胶联用澄清菠萝汁和绿茶汤的工艺条件,运用响应面法和正交设计对澄清工艺进行优化;通过沉淀类型判别实验判断引起不同饮料沉淀的原因;通过比较菠萝汁和茶汤澄清前后起混活性物质的含量变化推测菠萝汁和绿茶汤的沉淀机理以及壳聚糖/黄原胶的澄清机理,为饮料的进一步研究开发提供有效的依据。
通过单因素试验分析,确定了以菠萝汁浊度为考察指标的响应面设计试验的水平范围(壳聚糖:黄原胶比例:1.3:0.7~1.5:0.5,温度:40~50℃,时间:50~60min)。经工艺优化,菠萝汁的最佳澄清工艺为:壳聚糖:黄原胶:1.3:0.7,反应温度:50℃,反应时间:56min,得到菠萝汁的浊度为1.68±0.10NTU。
在菠萝汁的最佳澄清工艺基础上,分析和鉴定了菠萝原汁、菠萝汁上清液及沉淀物的理化特征。试验结果发现,菠萝混浊是蛋白质—多酚类型的混浊。经壳聚糖/黄原胶澄清后,多酚含量下降了13.19%,单宁含量下降了59.28%,蛋白质含量下降了61.47%,氨基酸含量下降了58.11%,果胶含量下降了49.99%。沉淀类型判别试验发现,蛋白质是引起菠萝汁沉淀混浊的主要原因。
以绿茶汤浊度为评价指标,采用壳聚糖和黄原胶比例、pH值和时间三因素三水平正交试验法,优选壳聚糖和黄原胶联用的最佳澄清工艺。经工艺优化,最佳澄清工艺为:壳聚糖:黄原胶:9:1,pH:4.1,反应时间:65min,得到绿茶汤的浊度为0.93±0.01NTU。通过在绿茶汤的最佳澄清工艺基础上,分析和鉴定了茶汤上清液及沉淀物的理化特征。绿茶汤混浊是蛋白质—多酚类型的混浊,经壳聚糖/黄原胶澄清后,茶多酚含量下降了26.99%,儿茶素含量下降了56.02%,蛋白质含量下降了73.43%,氨基酸含量下降了34.04%,咖啡碱含量下降了19.92%。沉淀类型判别试验发现,茶多酚(主要是儿茶素)是引起绿茶汤沉淀的主要原因,咖啡碱不参与沉淀的形成过程,而是以共沉的形式存在沉淀物中。
壳聚糖/黄原胶能够澄清饮料,一方面是因为壳聚糖自身可以与饮料中带负电荷的微粒作用,使起混的胶态颗粒被絮凝沉淀下来;另一方面,可能因为壳聚糖和黄原胶在溶液中形成了交联状的网状结构,这种结构可以将单宁等起混物质吸附分离出来。
In this paper, the clarification effects of chiotsan and xanthan gum on pineapple juice and green tea were studied. Response surface model and the orthogonal test were used to optimize the clarification process. Haze–style experiments were performed to decide the main haze-active materials in pineapple juice and green tea beverage. The sediments of pineapple juice and tea beverage and the components of the clarified beverage were analyzed.
Through the analysis for single variance, the levels of every variance in response surface model evaluation based on the turbidity for pianpple juice clarification, were finally confirmed as follows: chiotsan:xanthan gum:1.3:0.7-1.5:0.5, temperature: 40-50℃, time:50-60min. After process optimization, the optimized conditions for clarification were as follows: chiotsan:xanthan gum:1.3:0.7, temperature: 50℃, time:56min, the lowest turbidity reached 1.68±0.10NTU.
The ratio of chiotsan to xanthan gum, time and pH were selected as indexes according to orthogonal design L9(34). After process optimization, the optimized conditions for tea beverage clarification were as follows: chiotsan:xanthan gum:9:1, pH:4.1, time:65min, the lowest turbidity reached 0.93±0.01NTU.
Both pineapple juice and green tea beverage hazes belonged to the type of protein-tannin haze. The addition of chitosan/xanthan gum clarified both the beverages by changing the contents of haze-active substances. In pineapple juice, protein was found decreased by 61.47%, amino acid decreased by 58.11%, total polyphenols decreased by 13.19%, tannin decreased by 59.28% and pectin decreased by 49.99%. In green tea beverage, tea polyphenols was found decreased by 26.99%, catechin decreased by 56.02%, protein decreased by 73.43%, acid amino decreased by 34.047% and caffeine decreased by 19.92%。Haze-active substances analysis indicated that protein was most attributed to the pineapple juice haze and polyphenols to the tea beverage. Caffeine was not involved in the the formation of the sediment. Beverage could be effectively clarified by changing the proportions of its haze-active substances with chitosan/xanthan gum.
引文
[1]芮汉明.软饮料沉淀问题浅析[J].饮料工业, 2008, 13(5): 1-2
[2]汤天舒.中国饮料一览[J].食品工业, 2005, 4: 5-6
[3]高光仁.蓬勃发展的我国软饮料工业[J].饮料工业, 2006,12(7): 3
[4]张济军,黄永华.我国主要亚热带水果国际竞争力及其发展潜力研究[J].台湾农业探索, 2008, 13(5): 34-35
[5]黄循精.世界热带亚热带水果产销动态[J].柑橘与亚热带.2008, 20(7): 12
[6]徐广涛.我国果汁饮料生产现状及其发展前景[J].食品工业, 2001(1): 23-25
[7]辛力,鲁默森等.我国果汁饮料生产现状及对策分析[J].落叶果树, 1996: 36-38
[8]闵宝华.绿茶的六大功效[J].养生月刊,2009(2):69-70
[9]马晨,张寰.茶饮料销售数据分析[J].现代商业, 2009, 23(4): 9-10
[10]杨帆,刘金芳.我国茶叶食品的发展现状及其展望[J].茶叶通讯, 2002, 1: 29-31
[11] Borders B. et al. Method for solubilization of tea cream[J]. Tea, 1988, 9(2): 46-47
[12] Bee R.D., Izzard M.J., Harbron R.S. The Morphology of tea cream[J]. Food Chemistry, 2002, 4: 9-11
[13] Van Buren, J.P. Causes and prevention of turbidity in apple juice[J]. Food Sci. Nutr., 1989: 97-120
[14] Beveridge T. Haze and cloud in apple juices[J]. Crit Rev Food Sci. Nutr., 1997, 37: 75-91
[15] Asano K.J., Shinagawa K., Hashinoto N. Characterization of haze-forming proteins of beer and their roles in chill haze formation[J]. Soc. Brew. Chem., 1982, 40:147-154
[16] Beveridge T., Harrison J.E., Weintraub S.E. Procyanidin Contribution to Haze Formation in Anaerobically Produced Apple Juice[J]. Lebensm.-Wiss. U.-Technol., 1997, 30: 594-601
[17] Van Buren J.P., Way R.D. Tannin hazes in deproteinized apple juice[J]. Food Sci., 1978, 43: 1235-1237
[18] Robers E.H. The phenolic substances of manufactured tea—the creaming down of liquor[J]. Sci. Food. Agric, 1963, (14) : 700-705
[19] Siebert K.J., Troukhanova, N.V., Lynn, P.Y. Nature of polyphenol-protein interactions[J]. Agric. Food Chem. 1996b, 44(1): 80-85
[20] Siebert K.J., Carrasco A., Lynn P.Y. Formation of protein-polyphenol haze in beverages[J]. Agric Food Chem., 1996, 44: 1997-2005
[21] Siebert K.J. Effects of protein-polyphenol interactions on beverage haze, stabilization and analysis[J]. Agric Food Chem., 1999, 47: 353-362
[22]黄惠华,王少斌.茶多酚—蛋白质之间的络合及沉淀回收研究[J].食品科学, 2002, 23(1): 30-31
[23] Kauschus, V., Theiu H.P. Composition of soluble polysaccharides of fruit juices[J]. Lebensm. Unters Forsch, 1985, 18(1): 462-466
[24] Whitaker J.R. Pectic substances, pectic enzymes and haze formation of fruit juices[J]. Enzyme Microb Technol, 1984, 6: 341-349
[25] Brunner H.R., Tanner H. Analysis of beverages-enzyme procedures[J]. Confructa Stud, 1986, 30: 183-192
[26] Keiser M.E., Pollard, A., Timberlake C.F. Metallic components of fruit juices.Ⅰ. Copper as a factor affecting sedimentation in bottled apple juice [J]. Sci. Food Agric, 1957, 8: 151-168
[27] Singh H.K. Pollination and fruit set behavior of anonla[J]. Indian Journal of Agricultural Sciences, 2001, 71(1): 34-36
[28]王森林.酶法澄清余甘果研究[J].食品工艺科技, 1998(1): 8-9
[29]王森林.余甘果原汁生产工艺研究[J].食品科学, 1998, 19(11): 34-36
[30] Kpop J.P. The mechanism of cloud loss phenomenon orange juice[J]. Journal of Food Sci., 1994, 59: 1-3
[31] Eric D.J. An introduction to food colloid[J]. Food Chemistry, 2003, 34(7): 9-10
[32] Polona Spicin, Miha Homar, Andreja Zupancic et al. Sodium ascorbyl phosphate in topical microemulsions [J]. International Journal of Pharmaceutics, 2003, (256): 65-73
[33] Hangen Trommer, Reninhard H Neuberat. The examination of polysaccharides as potential antioxidative compounds for topical administration using a lipid model system[J]. International Journal of Pharmaceutics, 2005, (298): 153-163
[34] Kose K. Oily-water cosmetic emulsions containing gum and L - carrageenan[J]. Agric Food Chem., 1992, 10: 37-40
[35]王晓明.菠萝小档案[J].吉林农业, 2003, 4: 23-24
[36]易干军,王举宾.中国菠萝竞争力的国际比较[J].世界农业, 2007. 7: 20-21
[37]林草.饮食之菠萝[J].果农之友, 2009, (4): 50
[38]舒肇甦,韩广勇.我国菠萝加工与综合利用现状[J].保鲜与加工, 2006, 34(3): 4-6
[39]董定超,李玉萍.中国菠萝产业发展现状[J].食品工业, 2009, 33(4): 13-15
[40]徐迟默.世界菠萝产销动态[J].中国工业信息, 2006, 23(10): 1-2
[41]温尚华.我国菠萝产业发展现状与对策探讨[J].中国热带农业, 2006, 1: 9-10
[42]徐一飞,周灿芳. 2008年广东省菠萝产业发展现状分析[J].广东农业科学, 2009 (5): 191-193
[43]董定超,李玉萍.近十年世界菠萝的生产贸易现状[J].热带水果, 2008, 28(2): 59-60
[44]胡桂.菠萝季节话菠萝[J].科学生活, 2003, 55: 4
[45]舒肇甦.广东省菠萝产业现状[J].中国果业信息, 2005, 22(4): 1-3
[46]许海平.海南菠萝产业发展现状分析[J].中国热带农业, 2008, 6: 10-12
[47]吴庆.果汁及果汁饮料市场消费分析[J].食品工业, 2008,18(3): 1
[48]刘岩,潘学文.粤脆菠萝在广州仑头村的种植表现及配套栽培技术[J].广东农业科学, 2008, (3): 21-23
[49]张倩倩,褚庆环.菠萝冰淇淋苦味物质形成的初步研究[J].食品科技, 2009, 34(1): 45-47
[50]彭球生.菠萝果酒酿造新工艺研究[J].现代食品科技, 2009, 25(6): 629-636
[51]范江平,胡存芬.菠萝果肉酸奶配方筛选及优化[J].乳业科学与技术, 2009, (4): 175-177
[52]赵希艳,高光平.菠萝胡萝卜番茄复合果蔬汁饮料的研制[J].试验报告与理论研究, 2009, 12(10): 19-21
[53]王伟华,崔薇.菠萝汁豆奶饮料的研制[J].广东农业科学, 2007, 10(2): 68-71
[54]祝美云,李梅.马铃薯菠萝复合低糖果脯的研制[J].浙江农业学报, 2009, 21 (2): 106-110
[55]袁利鹏,杨君.低糖柚子皮菠萝复合果酱的工艺研究[J].中国酿造, 2009, 207(6): 182-183
[56]徐迟默,杨连珍.菠萝科技研究进展[J].华南热带农业大学学报, 2007, 13(3): 24-26
[57]回瑞华,侯冬岩.绿茶化学成分的研究[J].鞍山师范学院学报, 2002, 4(1): 42-49
[58]张新华.茶叶食品的开发技术[J].杭州科技双月刊, 1998, 4: 19-23
[59]江永文.绿茶产业的发展方向[J].茶博览, 2009, (4): 12-14
[60]纳新.新型茶叶食品的加工[J].中国食品, 1999, 6(4): 27
[61]李时珍.本草纲目(果部第30卷)[M].北京:农业出版社, 1978: 1789-1790
[62]韩驰.绿茶与健康研究. [J].茶博览, 2009, 4: 78-79
[63]杨钟鸣.茶叶深加工与综合利用的现状与发展前景[J].中国茶叶, 2005, 3:15-17
[64]方青.我国绿茶出口现状及对策探讨[J].中国茶叶, 2009.4: 5-7
[65] ImeriA G, Knorr D. Effects of Chitosan onYield and Composition data of Carrot and App leJuice[J]. Food Sci, 1988, 53 (6) :77-83
[66]蒋挺大.甲壳素[M].北京:化学工业出版社, 2003:3-4
[67]陈忻,袁毅桦,唐俊勉.中国鲨甲壳素的制备及其性能研究[J].化学世界, 2001, 7: 362
[68]张凯,郝晓东,黄渝鸿.甲壳素及壳聚糖的应用[J].应用化工,2004, 33(3): 628
[69]董炎明,阮永红,丘蔚碧.甲壳素、壳聚糖及其衍生物在食品工业中的应用[J].食品科技, 2000, (5): 78-81
[70]周友亚.甲壳素、壳聚糖及其衍生物的开发与应用进展[J] .河北师范大学学报, 2002, (2): 56-60
[71]吴国杰,姚如华.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
[72]赖风英,向东,梁平.壳聚糖在食品工业中的应用[J].中国甜菜糖业, 2004, (2): 28-30
[73]余歆.几丁质/壳聚糖在果实贮藏上的作用[J].食品科学,1998(8):58-61
[74]傅民,金鑫荣.新型保健食品低聚壳聚糖的开发[J].食品研究与开发, 1996, (3): 44-46
[75]冉艳红.壳聚糖在苹果酒澄清中的应用[J].食品科学, 2001, 9: 34-36
[76]徐金祥,刘秀凤.果汁、蔬菜汁的澄清方法[J].食品工业, 1997, 2: 23-25
[77]梁灵.果胶酶和壳聚糖对猕猴桃果汁澄清作用的研究[J].食品科技, 1998, (1): 33-35
[78]李增新,王彤.天然沸石负载壳聚糖对陈醋的澄清作用[J].食品科学, 2008, 29(2): 128-129
[79] Host M. Effects of chitosan on yield and compositional data of juice[J]. Biotechnol Prog, 2002, 16: 1091-1097
[80] Rwan J., Wu J. Deacidification of GrapefruitJuice with Chitosan[J]. Food Science, Taiwan, 1996, 23: 509-519
[81] Collin Nathalie, Bichon Yohann. Eye shadow containing xanthan gum and mixed silicate[J]. International Journal of Pharmaceutics, 2003, (10): 14-15
[82] Patrick Mccall. Antidandruff shampoo compositions containing a magnesium aluminum silicate - xanthan gum suspension system[J]. Sci. Food Agric, 1990, 5: 2
[83] Hongie Cao, Gary N. Use of xanthan gum as a hair fixative[J]. Lebensm. Unters Forsch, 2003, 7: 22-25
[84] Lijima, Shinozaki, Hatakeyama, et al. Studies on gelation mechanism of xanthan gum hydrogels[J]. Carbohydr Polym, 2007, 68(4): 701-707
[85] Bjern E, Chistensen B E, Stokke B T. M etastable. Partially Depolymerized Xanthan and Rearrangements toword perfectly matched duplex structures[J]. Macromolecules, 1996, 29: 29-39
[86] Rong M.S. Studies on gelation mechanism of xanthan gum hydrogels[J]. Carbohydr. Polym, 2007, 68(4): 701-707
[87]夏涛.膜技术在茶叶深加工中的应用.茶叶科学技术, 1996, (2): 10-13
[88]小林丽彰.茶なびそれ等の代用品の浓缩抽提出液の制造[J].茶叶研究报告, 1995, 4, 7: 100-104
[89]李影.速溶茶生产工艺对其产品风味的影响.饮料工业, 1999, 2(2): 15-19
[90]何东保,石毅.壳聚糖/黄原胶凝胶化性能的研究[J].武汉大学学报(理学版),2001,47(6):717-720
[91]陈渝,李远志.壳聚糖对菠萝汁澄清效果的研究[J].食品与机械, 2005, 21(1): 43-44
[92]海洪.壳聚糖在菠萝汁澄清中的应用研究[J].广西轻工业, 2009,12: 56-60
[93]陈洁兰,刘欣.壳聚糖澄清菠萝汁工艺研究[J].食品研究与开发, 2009, 30(8): 119-123
[94]陈仪男.菠萝汁饮料稳定性研究[J].亚热带植物科学, 2005, 34(1): 36-38
[95]吴长青.壳聚糖在果汁澄清工艺上的应用[J].饮料工业, 2001(3): 9-11
[96] Jaeger L M., Bento A., Pierucci A. Clarification of pineapple juice[J]. Journal of agricultural and food chemistry, 1998, (6): 2185-2189
[97] Kawaguchi M., Takahash A. Polymeric stabilization of colloidal dispersions[J]. AdColloid Interface Sci., 1992, 37: 219
[98] Huang C P. Coagulation of colloidal particles in water by chitosan[J]. Chem Technol Biotechnol,1996, 66(2): 227-232
[99] Koczo A., Wasan D. Flocculation of food dispersions by gums[J]. Food Sci., 1998, 12: 43-53
[100] Ring, S., MacDougall, A. Pectin-chitosan interactions and gel formation[J]. Carbohydr. Res.,2004,339:1933-1939
[101] Lee K.Y., Park W.H. Polyelectrolyte complexes of sodium alginate with chitosan and its derivatives for microcapsules[J]. Food Sci., 1997, 63(4): 425-432
[102] Okhamafe O., Amsden B., Chu W. Modulation of protein release from chitosan-alginate microcapsules using the pH-sensitive polymer hydroxypropyl methylcellulose acetate succinate[J]. Journal of Micro capsulation, 1996, 13: 497-508
[103] Kelhofer, Von W. Beitrage zur Kenntnis des Birngerbstoffs und seiner Beranderungen bei der Obstweinbereitung[J]. Jahrb. Schweiz.,1908, 22: 343-410
[104] Hagerman A.E. New polydrophobic lipid interaction in tea cream[J]. Food Science, 1998, 45:79
[105]李娜.与浓缩苹果汁混浊有关的蛋白质组成分析[J].食品科学, 2005, 26(8): 105-107
[106] Broadhurst, M. A rapid and sensitive method for the quantification of microgram quantities of protein utilizing the principle of protein-dye binding. Anal. Biochem., 1976, 72: 248-254
[107] Cohen, S.A., Tarvin T.L. PITC derivatives in amno acid analysis[J]. Nature, 2986, 320: 769-770
[108]杨桂馥,罗瑜.现代饮料生产技术[M].天津:天津科学技术出版社, 1998: 648
[109] Sellappan,S.;Akoh,C,C Phenolic compounds and antioxidant capacity of Georgia-grown blackberries.[J]. Agric. Food Chem., 2002, 50: 2432-2438
[110] Owen R Fennema. Food Chemistry[M]. New York: Marcel Dekker, 1996: 65-67
[111] Johnson,G.;Donnelly,B.J.;Johnson, D.K. The chemische nature and precursors of clarified apple juice sediment[J]. Food Sci., 1968, 33: 254-257
[112] Beveridge B.,Tait, V. Structure and composition of apple juice haze[J]. Food Struct.,1993, 12: 195-198
[113] Fang, Z.X, Tao G.J., et al. Chemical composition of clarified bayberry (Myrica rubra Sieb. et Zucc.) juice sediment[J]. Agriculture and Food Chemistry, 2006, 54(20): 7710-7716
[114] Siriwoharn T. Wrolstas R.E., Durst R.W. Identification of ellagic acid in blackberry juice sediment[J]. Food Sci., 2005, 70:189-197
[115]王岸娜.壳聚糖澄清猕猴桃果汁及其澄清机理的探讨[D].无锡:江南大学, 2006
[116] Asquith T, Butler L. Interaction of condensed tannins with selected proteins[J]. Phytochemistry, 1986, 25(7): 1591
[117] Haslam E. Plat polyhenols Vegetable Tannis Revisited[M]. London:Cambridge University Press, 1989:10-14
[118] Outtrup H. Polyphenol interactions in beer[J]. Phytochemistry, 1999(7):78-82
[119] Hoon R. Studies on the Formation and Composition of Cream in Tea infusions[J]. Sci. Food Agric, 1968, (19): 530-534
[120]曾庆孝.壳聚糖/果胶复合作用研究[J].食品工艺科技, 2009, 8(30): 34-36
[121]严鸿德.茶叶深加工技术[M].北京:中国轻工业出版社, 1998: 32-35
[122] Nagadakshmi S.J. The role of added carbohydrates in tea - treated green tea. [J]. Food Chemistry, 1984 , 13 (1): 69-71
[123]丁志.壳聚糖在绿茶汁澄清中的应用研究[J].中国食品添加剂, 2003, 4: 90-93
[124]寇正福,刘坐镇.单宁酸与麦胶蛋白结合反应的研究[J].酿酒科技. 2003, (1): 65-68
[125] Rutter K., Stainsby M., Cdlier N., Mallow R. Physical/chemical nature of pectin associated with tea beverage cloud[J]. Journal of Food Science,1994, 59: 399-402
[126] Nagadakshmi, S.J. The role of added carbohydrates in tea - treated green tea. [J]. Food Chemistry, 1984, 13: 69-77
[127]阎守和.绿茶提取液沉淀形成机理的研究[J].食品与发酵工业, 2008,242(2): 1-4
[128]林郑和,严兰芳.紫外分光光度法测定茶叶中的咖啡碱[J].茶叶科学技术, 2001, 4:20-22
[129]魏毅,王娟.香荚兰素比色法测定茶多酚口含片中儿茶素含量[J].中国中药杂志,1999,24(6):347-349
[130]骆锐.茶饮料沉淀机理及解决途径的探讨[J].福建轻纺[J]. 2003,10:13-14
[131]陆建良,梁月荣.蛋白质与儿茶素和咖啡因互作对模拟茶汤透光率的影响[J].中国食品学报, 2006, 6(4): 34-37
[132]綦菁华.影响蛋白质—酚类聚合物形成的因素研究[J].中国食品学报, 2009, 9(6): 12-14