植物激素对黑曲霉生长的影响和黑曲霉的固定化
详细信息    本馆镜像全文|  推荐本文 |  |   获取CNKI官网全文
摘要
本论文研究了植物激素对固定化黑曲霉发酵法生产葡萄糖酸的影响,主要研究了植物激素对黑曲霉生长的增殖作用、植物激素应用于黑曲霉葡萄糖酸发酵和植物激素应用于固定化黑曲霉菌的葡萄糖酸发酵的作用。首先是通过筛选不同的植物激素对黑曲霉生长的促进作用,采用测定菌液光密度的方法判断黑曲霉的生长情况,并最终得到以赤霉素对黑曲霉的生长促进作用最为明显。然后研究了赤霉素对黑曲霉液体发酵法促进葡萄糖向葡萄糖酸的转化作用,采用3,5—二硝基水杨酸比色法测定还原糖的含量,得出赤霉素可以促进葡萄糖向葡萄糖酸的转化。最后采用包埋法(固定化材料是海藻酸钠)固定化黑曲霉,并应用于发酵实验,在固定化过程中分别添加二氧化硅和蒙脱土改进固定化方法,同样对发酵液进行还原糖的测定以筛选出最佳固定化黑曲霉的改进方法,得到黑曲霉的最佳固定化条件以应用于葡萄糖酸的生产和研究中。本文的实验结果主要有:
     1.对黑曲霉增殖培养的实验结果表明三十烷醇、赤霉素和α-萘乙酸这3种植物生长激素在低浓度下(0.1mg/L-1.0mg/L)对黑曲霉的生长均有促进作用,其中赤霉素的增殖作用最明显。
     2.将赤霉素加入到黑曲霉液体发酵培养基中,结果表明不同浓度的赤霉素对黑曲霉增殖都有影响。质量浓度为0.05、0.1、0.5、1.0、1.5mg/L的5个处理组64小时后菌浓度分别比对照组提高了25.12%、35.39%、32.16%、50.44%和31.38%。最佳质量浓度为1.0mg/L,此处理浓度下赤霉素对黑曲霉增殖的促进作用在接种后48h就明显表现出来。
     3.将赤霉素加入到黑曲霉液体发酵培养基中,对发酵法生产葡萄糖酸的各组发酵液进行还原糖测定,赤霉素对葡萄糖转化为葡萄糖酸有促进作用,得出最佳质量浓度为1.0mg/L。
     4.以海藻酸钠包埋法对黑曲霉进行固定化,采用加入不同材料的方法对固定化方法进行改进,得到采用质量浓度为3%的海藻酸钠和质量浓度为3%的CaCl2,同时固定化细胞的使用次数为4-5次,该条件下,采用分别加入二氧化硅和蒙脱土粉末的方法,蒙脱土固定化小球对葡萄糖的促进转化能力最强。
     以上结果表明将植物激素应用于黑曲霉的葡萄糖酸发酵中,能够达到促进黑曲霉发酵菌增殖的目的,既保证黑曲霉的快速生长优势,又可以促进葡萄糖酸的发酵。同时采用将不同材料加入固定化黑曲霉中固定化黑曲霉的方法来促进葡萄糖酸的生成,对实际生产有重要的指导意义。
The effects of plant hormones on production of gluconic acid by immobilized Aspergillus niger are explored in this dissertation.This paper mainly studies the proliferation of Aspergillus niger using plant hormones,influence of plant hormones to production of gluconic acid by Aspergillus niger and immobilized Aspergillus niger.Firstly the infuences of different plant growth hormones on the growth of Aspergillus niger are explored.Bacilli optical density for judging the growth of Aspergillus niger is adopted. The effect of GA to the growth of Aspergillus niger is the most obvious. Then the plant hormones on conversion of glucose to gluconic acid by Aspergillus niger liquid fermentation is examined. GA can promote glucose to gluconic acid conversion by determination of reducing sugar content using the method of DNS.Finally,the fermentation of Aspergillus niger immobilized by embedded sodium alginate is studied. In the process of the immobility, silicon dioxide and montmorillonite are introduced.At the same time, reducing sugar content is determined to choose the best plan of immobility.So,the immobilized Aspergillus niger can be applied for the the production and research of Gluconic acid actually. The results of the experiments included:
     1. The three plant growth hormones (triacontanol、gibberellin andα-naphthylacetic acid)could enhance the growth of Aspergillus niger in low concentration(0.1mg/L-1.0 mg/L).In this aspect, the best is gibberellin.
     2. GA is added to liquid fermentation medium and it indicates that different concentrations of GA is good for proliferation of Aspergillus niger. Five treatment groups with concentration of 0.05、0.1、0.5、1.0 and 1.5mg/L are respectively increased 25.12%、35.39 %、32.16 %、50.44 % and 31.38 % . The optimum concentration of which is 1.0mg/L and this can be seen after 48 hours.
     3. GA is added to liquid fermentation medium and reducing sugar content is determined. The results showed that the conversion of glucose to gluconic acid can be promoted by adding to GA.The best concentration of GA is 1.0mg/L.
     4. Aspergillus niger mobilized by embedded sodium alginate with different materials is studied.The best immobilization consists of 3% of sodium alginate and 3% of CaCl2,and the number of using fixed cells is four to five.Under these conditions,the promotion of GA including silicon dioxide and montmorillonite to the conversion of glucose are explored.Aspergillus niger mobilized by montmorillonite is more effective.
     The research results demonstrate that the plant hormone used in gluconic acid fermentation by Aspergillus niger is effective. Plant hormone can promote the proliferation of Aspergillus niger and ensure the rapid growth of it. Smultaneity, different materials are joined in the mobilized Aspergillus niger to accelerate the the conversion of glucose to gluconic acid.And it is helpful to the actual production of gluconic acid.
引文
[1] Znad H, Markos J, Bales V. Production of gluconic acid from glucose by Aspergillus niger:growth and non-growth conditions. Process Biochem 2004,39:1341~5
    [2] F. W. Lichtenthaler,in:B. Kamm, P.R. Gruber, M. Kamm (Eds.),Biorefineries–Industrial Processes and Products, vol. 2, Wiley~VCH,Weinheim, 2006 , p3 (Chapter 1)
    [3]谷海先.对葡萄糖酸功能的新认识及在食品中的应用前景.[J]
    [4] JieBao,KeniehiKoumatsu, Kejii Fuurmoto,et al. Deaetivation kineties of immobilized glucose oxidase for production of calcium gluconate in an extemal loop airlift bioreactor[J]. Biochemical Engineering Journal,2004,22(1):33~41.
    [5] Boutroux S. Compt Rend,1880.236
    [6]金其荣,张维民,徐勤.有机酸发酵工艺[M].北京:轻工业出版社,1989
    [7]拜永孝,李彦峰,马应霞等.固定化酶技术及其应用[J].化学通报,2005,68:W027
    [8]秦少雄.葡萄糖酸方法研究评述[J].荆州师范学报,1998,21(2):74~ 77
    [9] DONEVA T, VASSILIEFF C, DONEV R. Catalytic and biocatalytic oxidation of glucose to gluconic acid in a modified three phase reactor[J].Biotechnology Lett,1999,21:1107~1111
    [10]陈道文,杨红,王鸣华.有机化学[M].北京:化学工业出版社,2001
    [11]顾登平,张越.成对电解同时合成甘露醇﹑山梨醇和葡萄酸盐[J].精细化工,2000, 17(10):577~ 580
    [12]李智华,张春逢,王莉莉.电解法由葡萄糖制备葡萄糖酸钠[J].化学世界,1998, 1:20~ 23
    [13]潘瑞炽,董得愚.植物生理学[M].北京:高等教育出版社,1984
    [14]曹仪植,宋占平.植物生理学[M].北京:高等教育出版社,1998
    [15]杨塞,肖层林.赤霉素的生物合成及促进水稻茎伸长机理研究进展[J].作物研究,2004,5:317~320.
    [16] Krishna K. S. Sastry and Robert M. MuirGibberellin:Effect on Diffusible Auxin in Fruit Development.Science.1963.140:494~495
    [17]梁施友.激素对提高赖氨酸发酵单位的影响微生物学通报.1989,1:5~6
    [18]陈敏资,刘海涛.三十烷醇对几种单细胞藻生长影响的研究[J].海洋与湖沼,1994.25(5):510~514
    [19]刘影,李兰生.三种植物生长激素对海洋光合细菌生长影响的研究[J].海洋湖沼通报,2006,(2):57~60
    [20]刘影,李兰生.植物生长激素对海洋光合细菌生长及净化氮磷能力影响的研究[J].海洋通报,2006,23(3):92~94
    [21]蒋宇红,黄霞,俞毓馨.几种固定化细胞载体的比较[J].环境科学,1993,14(2):11~15
    [22]吴晓磊,刘建广,黄霞等.海藻酸钠和聚乙烯醇作为固定化微生物包埋剂的研究[J].环境科学,1993 ,14(2):28~31
    [23]吴茂瑛.固定化荧光假单胞菌降解阴离子表面活性剂的研究[J].上海环境科学,2003,22(6):396 ~ 401
    [24]裴海燕.聚氧化乙烯作为固定化包埋剂的研究[J].山东工业大学学报,2001 ,31(6):511~518
    [25]本田.固定化微生物法用于废水处理[J].水处理技术,1990,31(3):1
    [26]张克旭.海藻酸钠作为固定化微生物包埋剂载体的研究[J].生物工程学报,1986,2(3):66
    [27]黄仁杰.海藻酸钙凝胶小球的含量测定及溶出考察[J].海峡药学,2003,14(3):29~31
    [28]杨海波.小球藻固定化培养的初步研究[J].水产科学,2001,20(5):4~7
    [29] SMIDR DOLAV,SKJAK BRKGUDMUND. Aliginate as immobilization matrix for cells[J].Trends in Biotechnology,1990,8(3):71~78
    [30]韩丽君.用于固定化载体的海藻酸钙凝胶的研究[J].海洋科学,1992(3):56~59
    [31]王建龙.生物固定化技术与水污染控制[M].北京:科学出版社,2002
    [32]翁庆北.固定化酵母发酵废糖蜜生产酒精[J].贵州师范大学学报:自然科学版,2000 ,18(3):49
    [33]王蓓.海藻酸盐固定化北京丙酸杆菌丙酸发酵的研究[J].生物工程学报,1992,8(2):178~183.
    [34] R.Jamuna. Enzy Microb.Technol,1992,(14):16
    [35]郝建平.柴胡细胞固定化培养[J].山西大学学报(自然版),1995,18(2):190
    [36]王克明.共固定化多菌种混合发酵生产稠酒的研究[J],酿酒科技,2000,(3):67
    [37]曾胤新.产菊酶糖固定化细胞包埋剂的筛选[J],食品科技,1998,19(9):20
    [38] M Becerra et al. Enzyme and Microbiol Technology,2001(29):506
    [39] Monica Herrero. Enzyme and Microbiol Technology,2001(28):35
    [40]王克明.固定化红曲生物反应器发酵红曲色素的研究[J],乳品工业,2000,19(2):268
    [41]陈九武.固定化细胞合成酯类载体的研究[J].工业微生物,1997,27(3):27
    [42] P Bajpai et al. Process Biochem,1989,(2):16
    [43]王鲁燕.用固定化细胞技术连续生产麦迪霉素的研究,1998,23(6):464
    [44]吴星等.利用添加剂提高糖蜜酒精发酵速度[J].工业微生物,1993,23(5):29.
    [45] N J Nunez.应用固定化细胞生产酒精[J].国外生物科技,1998,(4):38
    [46]江俊明等.固定化细胞包埋剂的筛选[J].食品与发酵工业,1988,14(3):34
    [47]夏黎明等.固定化增值细胞发酵半纤维糖类的研究[J].食品与发酵工业,1998,(4):38
    [48]翁庆北等.固定化酵母发酵废糖蜜生产酒精[J].贵州师范大学学报(自然版),2000,(183):49
    [49]吕晓猛.固定化细胞珠体的改性研究[J].北京工业大学学报,1997,23(1):87
    [50]顾缪,杨根敏.固定化生物催化剂用于废水处理的研究报告[C].全国固定化生物催化剂学术讨论会论文.桂林:中国微生物学会,1988 :120
    [51]王平,张洪,林蒋,林时.固定化细胞技术在废水处理中的应用[J].工业用水与废水,2003 ,34(2):8~11
    [52]李峰.聚乙烯醇作为固定化细胞包埋剂的研究[J].中国给水排水,2000 ,16(12):14~17
    [53]曹永梅.海藻酸钙固定化细胞及其在食品工业中的应用[J].中国乳品工业,2001,29(6):34~36
    [54]王进.酒精酵母固定化的研究[J].南京化工学院学报,1990,12(1):72~76
    [55] Grootjen D R J. et al. Enzyme Ylicrob Technol[J].1990, 12:860~864
    [56] ShalabyW SW et al. J Controlled Realease[J].1992, 19 (1~3) :131
    [57] Linko Y Y, et al. Biotechnol Lett[J].1990, 12:57~60
    [58]肖美燕,徐尔尼,陈志.包埋法固定化细胞技术的研究进展[J].食品科学,2003,24(4):158~161
    [59] Zeng CM , Zhang YX, L u LL , et al. Immobilization of human red cells in gel particles for chromatograph ic activity studies of the glucose transporter Glut1. Biochimica et Biophysica A cta,1997,1325(1):91~98
    [60] Nagadomi H,Kitamura T,WatanabeM,et al. Simultaneous removal of chemical oxygen demand (COD),phosphate, nitrate and H2S in the synthetic sewage wastewater using porous ceramic immobilized photo synthetic bacteria. Bio technol Lett,2000, 22 (17):1369~1374
    [61] Bonin P, Rontani JF, Bo rdenave L. M etabolic differences between attached and free-living marine bacteria: inadequacy of liquid cultures for describing in situbacterial activity. FEMSM icrobiol Lett, 2001, 194:111~119
    [62] AOAC分析方法手册[M].中国光学学会光谱专业委员.1986年12月
    [63] Peres KG,O1iveira CT, Peres MA, Raymundo Mdos S, Fett R. Sugar Content in liquid oral medicines for children[J].Rev Saude Publica, 2005 Jun,39 (3):486~489
    [64]大连轻工业学院等.食品分析[M].中国轻工业出版社,1995,2:154~181
    [65]食品中还原糖的测定方法[S].GB/T 5009.7~1985
    [66]李晓勇,吴扬.关于托伦试剂和斐林试剂与还原糖反应历程的探讨[J].四川省卫生管理干部学院学报,1999, 18 (3):168~170
    [67]李存富,刘爱月,胡玉叶.样品溶液消耗量对还原糖测定结果的影响[J].食品工业科技,1997,6:80
    [68]叶海辉,何秀芬,王秀兰.费林试剂滴定法测定还原糖方法的改进[J].热带农业科学,2001,3:5~6
    [69]潘能斌.萨氏改良法测定商品中的还原糖[J].中国卫生检验杂志,2002,12(1):80
    [70]杨艳彬,宋于洋,颜海燕.葡萄酒中还原糖含量测定方法的研究[J].酿酒,2000, 6:89~90
    [71]王美芝,王青松.葡萄酒中色素对还原糖测定的影响[J].葡萄栽培与酿酒,1998, 2:25~28
    [72] Soliman R,Belal SA. Application of mercurimetric titration in semimicro estimation of some sugars[J].Pharmazie,1974,29(3):203~204
    [73] Belal SA,Soliman R. Application of mercurimetric titration in semimicro estimation of some sugars[J].Pharmazie,1974,29(3):205
    [74] Shalaby A,el-Shehaby R,Kheir A. Indirect potentiometric titration of reducing carbohydrates.Using alkaline potassium mercuric bromide solution and sulphide selective electrode[J].Acta Pharm Hung,1989,59(5):201~204
    [75] L Moio,A.Gambuti,L.Di Marzio,P.Piombino. Differential pH meter Determination of Residual Sugars in Wine[J].Am.J.Enol,2001,52(3):271~274
    [76] Diamandis EP,Hadjiioannou TP. Continuous-flow determination of reducing sugars and sucrose in natural and industrial products with periodate oxidation and a periodate-sensitive flow-through eletrode[J].Analyst,1982,107(128):1471~1478
    [77]张玉清.微型滴定法在苯甲酸衍生物分析中的应用[J].分析科学学报,2003, 19 (2)197~198
    [78]徐锡琼.微量滴定实验在定量化学分析中的应用[J].西昌师范高等专科学校学报,2004, 16 (3) :141~144
    [79]张玉清,蔡凌霜,曹建军,曾百肇,杨代菱.微量滴定法测定铁矿中的全铁含量[J].内蒙古民族大学学报(自然科学版),2004, Vol 19 (1):38~40
    [80]王元秀,庄海燕.微量滴定法测定称猴桃中维生素C的含量[J].济南大学学报(自然科学版),2001, 15 (4) :376~378
    [81]张琦,詹先成,李成容,李琳丽,林涛,何宁,尹小东.高精度散射光度滴定法测定盐酸异丙嚓的含量[J].华西药学杂志,2005, 20(1) :034~035
    [82]何宁,李成容,詹先成.林涛,陈钢.高精度散射光度滴定法测定诺氟沙垦的含量[J].分析化学,2004, 32 (8) :1080~1082
    [83] Trevel Yan We, Procter DP, Harrison JS. Detection of sugars on paper chromatograms[J].Nature, 1950:166 (4219):444~445
    [84] Rachinski W, Kniaziatova EI, Kravtsova BE. Method of obtaining and qualitative analysis of paper chromatograms of sugars[J].Biokhimiia,1952, 17 (5):551~556
    [85] Gardemer K. Use of acid-base indicator for quantitative paper chromatography of sugars [J].Nature, 1955,176(4489):929~930
    [86] Herb W, Venner H. Rapid二ethod for the quantitative determination of reducing sugars on paper disc chromatograms[J].Hoppe Seylers Z Physiol Chem, 1957, 31;308(1):36~42.
    [87] Beer JZ. Quantitative paper radiochromatography using Tollens reagent. II.Ammoniacal silver nitrate reagents containing less than equimolar proportions of ammonia for the oxidation of saccharides on paper chromatograms[J].J Chromatogr, 1963,11:247~252
    [88] Shellard EJ, Jolliffe GH. The effect of glycerol on the rate of movement of simple sugars on silica gel and cellulose thin layers[J].J Chromatogr,1966, 24(1):76~83.
    [89] Martins PM, Dick YP. A new method for the detection of sugars, specific for fucose, by thin layer chromatography[J].J Chromatogr,1968, 32(1):188~190
    [90] Walborg EF Jr, Ray DB, Ohrberg LE. Ion-exchange chromatography of saccharides:an improved system utilizing boric acid/2,3-butanediol buffersAnal Biochem. 1969 Jun;29 (3):433~440
    [91] M. A. Amerine and C. S. Ough, Methods for Analysis of Musts and Wines,Wiley, New York, 1980
    [92] Vonach R,Lendl B, Kellner R. Hyphenation of Ion exchange high-performance liquid chromatography with Fourier transform infrareddetectionforthe determination of sugars in nonalcoholic beverages. Anal Chem. 1997 Oct 15:69 (20):4286~4290
    [93] Casella IG, Contursi M. Carbohydrate and alditol analysis by high-performance anion-exchange chromatography coupled with electrochemical detection at a cobalt-modified electrode[J].Anal Bioanal Chem, 2003,376 (5):673~679.
    [94] Lasko DR,Wang DIC. Online monitoring of intracelluar ATP concentration in Escherichia Coli fermentationprocesses[J].Biotechnol andBioeng,1996,52:364
    [95] Prestidge LS, Spizizen J. Inducible sucrase activity in Bacillus subtilis distinct fromLevan-sucrase[J].J Gen Microbiol,1969,59 (2):285~288.
    [96] Miller, G. L. Use of dinitrosalicylic acid reagent for determination of reducing sugar[J],Anal.Chem, 1959, 31:426
    [97] Laurentin A, Edwards CA. A microtiter modification of the anthrone-sulfuric acid colorimetric assay for glucose-based carbohydrates[J].Anal Biochem,2003,315 (1):143~145
    [98] Nelson, N. A photometric adaptation of the Somogyi method for the determination of glucose[J].J. Biol.Chem, 1944,153:375~380.
    [99] Donald E. Brushwood. Modification of the potassium ferricyanide reducing sugar test for sugars from extracts of cotton fiber[J].Journal of Cotton Science, 2000, 4:202~209
    [100] Krishna Murti G. S.R,Moharir A.V.and Sarma.V A.K. Spectrophotometric determination of iron with ortho-phenanthroline[J].Microchem. J, 1970, 15:585~589
    [101] F.E.Prado,J.A. Gonza lez,Boero,A R. Sampietro. A Simple and sensitive method for determining reducing sugars in plant tissues.Application to quantify the sugar content in quinoa (Chenopodium quinoa Willd.)seedlings[J]. Phytochemical Analysis,1998,9:58~63
    [102] Hauser, T. R and Cummins, R. L. Increasing the sensitivity of 3-methyl-2-benzothiazolone hydrazone test for analysis of aliphatic aldehydes in air[J].Anal.Chem, 1964, 36:679~681.
    [103] Gordon E. Anthon and Diane M. Barrett. Determination of reducing Sugars Biochem with -methyl-2- benzothiazolinonehydrazone[J].Anal 2002, 305 (2):287~289
    [104]黄洁,宋纪蓉,史红兵,马海霞,张建刚.苹果发酵液中残余还原糖的测定方法比较[J] .工业微生物,2001, 31 (3) :30~31
    [105] Clark L.C, Lyons C. Electrode system for contiuous monitoring in cardiovascular surgery[J].Ann NUY Acad.Sci,1962,102:29~45
    [106]钱军民,奚西峰,黄海燕,李旭样.我国酶传感器研究新进展[J].石化技术与应用,2004, 20:432~434
    [107] Zhang S, Wang N, Yu H, Niu Y, Sun C. Covalent attachment of glucose oxidase to an Au electrode modified with gold nanoparticles for use as glucose biosensor[J].Bioelectrochemistry,2005,67(1):15~22
    [108] Dimcheva N,Horozova E, Jordanova Z. A glucose oxidase inmobilized electrode based on modified graphite[C}. Naturforsch.2002,57 (7~8):705~711
    [109] Sternberg R, Bindra DS, Wilson GS, Thevenot DR. Covalent enzyme coupling on cellulose acetate membranes for glucose sensor development[J].Anal Chem. 1988, 60 (24):2781~2786
    [110] Updike S J, Hikes G P. The enzyme electrode[J].Nature,1967,214:986~988
    [111] Wu Z, Wang B, Dong S, Wang E. Amperometric glucose biosensor based on lipid film[J].Biosens Bioelectron, 2000,15 (3~4):143~147
    [112]冯德荣,李梅,朱思荣,周万里,黄加栋,冯东.适用于食品工业中的蔗糖-葡萄糖双功能生物传感分析仪的研究〔J].食品科学,2002, 23(6):117~121
    [113]史建国等.用葡萄糖酶电极法测定葡萄糖淀粉酶活性的研究[J].生物工程学报,1996, 12(增刊):226~231
    [114]孟宪伟,唐芳琼,冉均国,等.纳米颗粒复合材料增强的葡萄搪生物传感器[J].化学通报,2001, (6):365~367. [115」刘颜,袁若,柴雅琴,戴建远,钟霞,唐点平.聚中性红和纳米金修饰玻碳电极的葡萄糖生物传感器[J].西南师范大学学报(自然科学版),2005, 30 (3):478~482
    [116] A. Maquieira, M. D. Luque de Castro, M. Valca rcel. Derterination of recuding sugar in wine by flow injection analysis[J].Analyst,1987:112:1569
    [117] Andre Fernando Oliveira Orlando Fatibello-Filho.Flow injection spectrophotometric determination reducing sugars of using a focalized coiled reactor in a domestic microwave oven[J].Talanta,1999,50:899~904
    [118] Andre Fernando Oliveira a,Orlando Fatibello-Filho b,Joaquim A. No brega Focused-microwave-assisted reaction in flow injection spectrophotometry:a new liquid一vapor separation chamber for determination of reducing sugars in wine[J].Talanta,2001,55:677~684
    [119] Alberto N. Araujo, Jose L.F. C.Lima, Antonio 0. S. S.Rangel,Marcela A. Segundo. Sequential injection system for the spectrophotometric determination of reducing sugars in wines[J].Talanta. 2000.52:59~66
    [120] Raquel P. Sartini,Cla udio C. Oliveira Elias A. G. Zagatto, H.Bergamin Filho. Determination of reducing sugars by Flow injection gravimetry[J].Analytica Chimica Acta,1998, 366:119~125
    [121] The Japanese Pharmacopoeia.14th,Part1.“Official Monograpghs”,2001,The ministers of Health[C].Labor and Welfare, Tokyo
    [122] Mayri Korn, Luis F. B. P. Gouveia, Elisabeth de Oliveira, Boaventura F.Reis. Bionary search in flow titration employing photometric end-point detection[J].Analytical Chimica.Acta, 1995,313:177~184
    [123] Hideji Tanaka,Tsutomu Baba. High-throughput photometric titrimetry based on a Feedback and Subseguent Fixed Tirangular.Wave-controlled Flow Rationetry [J]. Analytical Sciences,2005 (21):615~618
    [124]李雅娟,刘淑范,等. 3种植物生长激素对2种底栖硅藻生长速率的影响[J].中国水产学,2002 ,9 (1):18~22
    [125]蔡敬民,钟洁,于宙,等.三十烷醇对侧耳菌丝体生长的调节作用[J].安徽农业科学,1994 ,22 (4):3752
    [126]诸葛健,王正祥.工业微生物实验技术手册北京中国轻工业出版社,1994

© 2004-2018 中国地质图书馆版权所有 京ICP备05064691号 京公网安备11010802017129号

地址:北京市海淀区学院路29号 邮编:100083

电话:办公室:(+86 10)66554848;文献借阅、咨询服务、科技查新:66554700