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产纤维素酶菌株的诱变选育及其产酶条件的研究
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摘要
本文简述了纤维素和纤维素酶国内外研究的发展状况,并阐述了纤维素酶作用于纤维素的机理。本课题采用的出发菌株是绿色木霉13001,该菌株是公认的产纤维素酶活力较高的菌株。本文研究的目的是选育出一株产酶活力更高的菌株。
     本课题相继对出发菌株绿色木霉13001采用紫外线诱变和~(60)Co-γ射线辐射,研究其诱变时间(诱变剂量)和正突变率的关系。通过测定滤纸崩溃进行初筛一些菌株,再对这些菌株采用液体摇床发酵实验,测定滤纸酶活力、CMC酶活力和β-葡萄糖苷酶活力三种酶活力,复筛后得到一株产酶活力更高的菌株1.0—28。该诱变菌株经测定比原出发菌株13001的滤纸酶活力、CMC酶活力和β-葡萄糖苷酶活力分别提高34.02%、31.13%和23.87%。
     本文还对诱变菌株1.0—28的产酶活力的条件进行了初步探讨,得出一些相应的结论。发酵培养基的碳源以稻草粉最佳,加入麸皮有助于提高酶活力,其比例为稻草粉:麸皮为2:1为宜;氮源以无机氮源(NH_4)_2SO_4为佳;产纤维素酶最适培养基起始pH值为5.5;产酶活力的最适发酵温度为30℃;适宜的发酵时间是120—132h;接种量为2%—3%;本文还得出加入添加表面活性剂Tween80和种龄在16h—20h的菌株对产酶活力没有明显的影响。
The dissertation discussed the development of cellulose and cellulase. It also introduced the principle that cellulase how to decompose cellulose. The strain Trichoderma virde 13001 was adopted in this research. Proverbially it is a good enzyme producing stain. The purpose of the present study was to attain a better one than parent stain by mutation.
    Based on the Trichoderma virde 13001,a mutated strain 1.0-28 was obtained through treatments of ultraviolet radiation and 60Co- ? radiation. After each treatment, the optimum time of ultraviolet radiation, the optimum dosage of 60'Co- ? radiation and the rate of positive mutation were researched. The strain isolation in each treatment was divided into two phases. First isolation was according to the test of filter paper collapse. Second isolation was according to the test of filter paper enzyme activity(FPase) . CMC-enzyme activity(CMCase) and 13 -glucosidase activity through liquid fermentation. The enzyme activity of the strain 1.0-28 was higher than parent stain. The result of higher were: FPase was 34.02%,CMCase was 31.13%, P -glucosidase was 23.87%
    The dissertation also studied the optimal conditions of enzyme production on the strain 1.0-28.The results showed that the better condition were: the carbon sources was straw powder, the ratio of straw powder and wheat bran equal 2:l,with (NH4)2SO4 as nitrogen
    
    
    sources, cultural originally pH was 5.5,cultural temperature was 30 ?cultural time was 120-130h,the quantity of inoculability was 2-3%. The emulsifier Tween80 and the age of the strain had not obvious effect on the result.
引文
[1]. Doppelbauer R,Esterbauer H,Sleimuuler H.Lignocellulosic waste for production of cellulase by Trichoderma reesei[J].Appl.Microbiol. Biotechnol. 1987,26:484-494.
    [2]. Rotter B.A.et al.Influence of enzyme supplementation on the bioavailable energy of barley[J].Poultry Sci., 1990,69:1174-1181.
    [3].刘小杰,何国庆,袁长贵.康氏木霉液体发酵产纤维素酶的初步研究[J].食品科学,2003,24(1):125-128.
    [4].汪维云,朱金华,吴守一.纤维素科学及纤维素酶的研究进展[J].江苏理工大学学报,1998,19(3):20-28.
    [5].上久保正.纤维素酶水解[J].化学工学.1983,47(5):291-296.
    [6].阎伯旭,齐飞,张颖舒,等.纤维素酶分子结构和功能研究进展[J].生物化学与生物物理进展.1999,26(3):233-237.
    [7]. Klyosov A.A. Trends in biochemisty and enmymology of cellulose degradation[J].Biochemistry, 1990,29:10577.
    [8]. Heyn A.N.The microcrystalline structure of cellulose in cell walls of cotton,ramic and jute fibers as revealed by negative straining of sections[J]. Cell Biol.,1966,29:181.
    [9].邓启光.纤维素和纤维素酶[J].微生物学通报.1996,(2):31-34.
    [10].天津轻工业学院等编.食品生物化学[M].中国轻工业出版社.1981:64.
    [11].宋波,邓晓嗥,施雷霆.纤维素酶的研究进展[J].上海环境科学.2003,22(7):491-493.
    [12]. Fan L. T. etal.Plellulose Hydrolysis[M].Spring-verlag,New York. 1987:121-147.
    
    
    [13].迟乃生,张庆芳,刘长江,等.纤维素酶高产菌株最适发酵条件的研究[J].沈阳农业大学学报.2000,31(4):380-382.
    [14].彭志英.食品生物技术[M].中国轻工业出版社.1999:43-48.
    [15]. Reese E.T. et al. J.Bacterial[M]. 1950(59):485-497.
    [16]. Heorissat B et al.Bio/Tech[M]. 1985(3):722-726.
    [17]. Wood T M.The cellulase of fusarium solani purification and specificity of the β-(1,4)-glucosidase components[J]. Biochem. 1971,121:353.
    [18]. Faterstam L T et al. FEBS Lett[J]. 1980(119):97-100.
    [19]. Kanda T et al. J Biochem[J].1976(79):997-1006.
    [20]. Wood T M,et al.Biochemistry and ceneties of centies of cellulose Degredation.FE Ms symp,43.London[J].Academic. 1988:21.
    [21]. Moloney A P,et al.Biochem[J]. 1985,225(3): 365-373.
    [22]. Reese E T.Biotechnol Bioeng Symposium[J]. 1981 (523): 147-161.
    [23]. Gupta J K,Das N B,Gupta Y P.Effect of cultural conditions on cellulose formation by Trichoderma vivide[J].Agric Biol Chem.1972, 36(11): 1961-1967.
    [24]. Beguin P. Molecular biology of cellulose degradation[J].Annu Rev Miccrobiol. 1990,44:219-248
    [25].刘莫昊,崔文华.纤维素酶及其生产工艺简介[J].饲料博览.1997,9(6):26.
    [26].郑佐兴,段明星,徐文联,等.高活性纤维素酶菌株的筛选及其产酶条件的研究[J].微生物学杂志.1996,16(1):35-38.
    [27]. Erikaaon K E et al. Biotechnol-Bioeng[J].1978(20): 317-332.
    [28].中国微生物菌种保藏管理委员会,工业微生物菌种保藏管理中
    
    心[J].食品与发酵工业.2001年(增刊),27:55
    [29].刘国生,王琳,李学梅,等.纤维素酶CMC糖花力测定方法的改进[J].1999(1):20-22.
    [30].辽宁省食品工业研究所,辽宁省朝阳酒厂.白酒生产中应用纤维素酶的研究[J].沈阳农业大学学报.1993,24(增刊):60-64.
    [31].李传友.影响纤维素酶水解木屑的若干因子的研究[J].生物工程学报.1987,3(4):266-272.
    [32].黄彬汉.聚醚对提高纤维素酶活力的初步研究[J]. 1987,14(1): 6-8.
    [33]. Pathak A N et al.Process Biochem[J]. 1973(4):35-38.
    [34]. Ghose T K et al. Process Biochem[J]. 1973(5):20-21.
    [35]. Reese E T et al.Increase in cellulase yields by addtion of surfactants to cellobiose cultures of Trichoderma virde Devd.Dev Ind Microbiol[J]. 1971(12):212.
    [36].王冬.腺苷三磷酸和环腺苷单磷酸对丝状真菌纤维素酶合成的调节[J].微生物学报.1996,36(1):12-18.
    [37].程奴宇,梁如玉,暨仕臣.绿色木霉HB产纤维素酶的条件研究[J].西南农业大学学报.2000,22(6):539-541
    [38].孙东平,庞廷军,李兆兰..绿色木霉产纤维素酶的提取分离及其性质[J].徐州师范学院学报(自然科学版).1996,14(2):62-66.
    [39].吴剑波主编.《微生物制药》[M].化学工业出版社.2002:46-55.
    [40].宛晓春.β-葡萄糖苷酶菌种选育[J].安徽农业大学学报.1997,24(1):77-80.
    [41].章冬春主编.工业微生物诱变育种[M].科学出版社.1984:100-163.
    
    
    [42].张文治编.新编食品微生物[M].中国轻工业出版社.1998:140-144.
    [43].沈萍,范秀容,李广武主编.微生物学实验[M].高等教育出版社.2001:124-125
    [44].诸葛健,王正祥编著.工业微生物实验技术手册[M].中国轻工业出版社.1997:388-392.
    [45].王景林,刘晓明,吴东林,等.纤维素酶产生菌黑曲霉X-15的选育及其产酶条件[J].中国兽医学报.2000,20(1):97-99.
    [46].张苓花,王运吉.固态混合发酵生产纤维素酶的研究.中国饲料.1998(2):14-17.
    [47].王成华,孙纳新,王健鹏,等.里氏术霉91-3纤维素酶产酶条件的研究[J].食品与发酵工业.1996(5):1-6.
    [48].梁霆,王逐,莫志忠,等.纤维素酶液体深层发酵条件的研究[J].生物技术.1997,7(6):22-26
    [49].贾新成,李喜梅,李磊,等.紫孢侧耳栽培期基质中纤维素类的降解和有关酶活的变化.微生物学通报.1994,21(3):148-152.
    [50].张文治编著.食品微生物学[M].中国轻工业出版社.1994:198-201.
    [51].王玢,李志香,袁方曜.海洋适冷菌产低温纤维素酶的条件优化.[J]山东教育学院学报.2003,18(4):63-64.
    [52].徐春厚.绿色木霉x—13株固态发酵产酶优化条件的研究.[J].云南农业大学学报2003,18(3):286-288.
    [53].于凤鸣,曹淡君.培养基中主要成分配比对Sn-9106菌株产纤维素酶的影响[J].沈阳农业大学学报.1993,24(增刊):25-31.
    [54].齐义鹏.纤维素酶生产及其应用[M].科学出版社,1984:124.
    
    
    [55].崔福锦,刘菡,韩辉.康宁木霉CP88329纤维素酶产生条件的研究[J].微生物通报,1995,22(2):72-76.
    [56].周江敏,陈华林,梁如玉,等.里氏木霉利用杂细胞产纤维素酶条件的研究[J].四川农业大学学报.2001,19(1):66-68.
    [57].陈春洪,祁哲师,陈薇.里氏木霉纤维素酶产生条件的研究[J].微生物学通报.1998,25(2):77-79.

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