解淀粉芽孢杆菌YP-2生产γ-聚谷氨酸的变温发酵条件研究
Condition of variable temperature fermentation of poly-γ-glutamic acid production by B.amyloliquefaciens YP-2
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摘要: 考察了不同温度(31 ℃,33 ℃,35 ℃,37 ℃,39 ℃)恒温发酵时间对解淀粉芽孢杆菌YP-2 (B.amyloliquefaciens YP-2)发酵生产γ-聚谷氨酸产量的影响.通过对不同温度下γ-聚谷氨酸发酵的动力学分析,制定了阶梯式温度调控方案:0~4 h,35 ℃;4~7 h,31 ℃;7~10 h,33 ℃;10~26 h,37 ℃;26~60 h,31 ℃.在此变温发酵条件下,最大菌体生产率达到1.66 g/(L·h)-1,γ-聚谷氨酸最大产量达到29.50 g/L,分别比最优的恒温37 ℃发酵条件下的产量提高了4.4%和 11.8%.这表明较之恒温发酵,变温发酵工艺有效提高了解淀粉芽孢杆菌YP-2发酵生产γ-聚谷氨酸的产量.Abstract: The effects of constant temperature fermentation time on poly-γ-glutamic acid (γ-PGA) production by B.amyloliquefaciens YP-2 was investigated under different temperatures (31 ℃, 33 ℃, 35 ℃, 37 ℃ and 39 ℃). The scheme of step-wise temperature control (0~4 h, 35 ℃; 4~7 h, 31 ℃; 7~10 h, 33 ℃;10~26 h, 37 ℃;26~60 h,31 ℃) was formulated following the kinetic analysis of γ-PGA fermentation. Under the variable temperature fermentation condition, the maximum cell productivity and γ-PGA yield reached 1.66 g/(L·h)-1 and 29.50 g/L, respectively, which was 4.4% and 11.8% higher than those in optimal constant temperature at 37 ℃. The results indicated the variable temperature fermentation effectively improved the γ-PGA production by B.amyloliquefaciens YP-2 comparing with constant temperature fermentation.
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[1]
彭英云,张涛,缪铭,等.γ-聚谷氨酸的合成、性质和应用[J].食品与发酵工业,2012,38(6):133.
-
[2]
刘青芝,李霞,苏移山,等.响应面法优化γ-聚谷氨酸发酵条件[J].中国生化药物杂志,2011,32(2):99.
-
[3]
徐淑霞,王杰,姬晓月,等.γ-聚谷氨酸对玉米淀粉糊化性质的影响[J].食品与发酵工业,2016,42(5):68.
-
[4]
LEE C Y,KUO M I.Effect of γ-polyglutamate on the rheological properties and microstructure of tofu[J].Food Hydrocolloids,2011,25(5):1034.
-
[5]
-
[6]
YAMAMOTO S,YOSHIDA H,OHKUBO T,et al.Evaluation of environmental change in the mouth with the use of spray-type oral moisturizer containing γ-PGA [J].Journal of Oral & Maxillofacial Surgery Medicine & Pathology,2016,28(5):446.
-
[7]
TANIMOTO H,FOX T,EAGLES J,et al.Acute effect of poly-gamma-glutamic acid on calcium absorption in post-menopausal women[J].Journal of the American College of Nutrition,2007,26(6):645.
-
[8]
CARVAJAL-ZARRABAL O,NOLASCO-HIPÓLITO C,BARRADAS-DERMITZ D M,et al.Treatment of vinasse from tequila production using polyglutamic acid[J].Journal of Environmental Management,2012,95(2):S66.
-
[9]
XU Z,WAN C,XU X,et al.Effect of poly (γ-glutamic acid) on wheat productivity,nitrogen use efficiency and soil microbes[J].Journal of Soil Science & Plant Nutrition,2013,13(3):744.
-
[10]
HELLMERS F,FERGUSON P,KOROPATNICK J,et al.Characterization and in vitro cytotoxicity of doxorubicin-loaded γ-polyglutamic acid-chitosan composite nanoparticles[J].Biochemical Engineering Journal,2013,75:72.
-
[11]
LOLLO G,RIVERARODRIGUEZ G R,BEJAUD J,et al.Polyglutamic acid-PEG nanocapsules as long circulating carriers for the delivery of docetaxel[J].European Journal of Pharmaceutics & Biopharmaceutics,2014,87(1):47.
-
[12]
游庆红,张新民.γ-聚谷氨酸的生物合成及应用[J].现代化工,2002,22(12):56.
-
[13]
SHIH I L,VAN Y T.The production of poly-(gamma-glutamic acid) from microorganisms and its various applications[J].Bioresource Technology,2001,79(3):207.
-
[14]
黄金,陈宁.γ-聚谷氨酸的性质与生产方法[J].发酵科技通讯,2005,26(3):4.
-
[15]
施庆珊.γ-聚谷氨酸的微生物合成与应用[J].精细与专用化学品,2004,12(11):20.
-
[16]
胡雅琴.恒温发酵与变温发酵柠檬酸过程及其比较[J].科技情报开发与经济,2003,13(9):203.
-
[17]
WEI Z,CHEN G,WANG Q,et al.Metabolic studies of temperature control strategy on poly(γ-glutamic acid) production in a thermophilic strain Bacillus subtilis GXA-28[J].Bioresource Technology,2013,155:104.
-
[18]
吴华昌,徐静,邓静,等.透明质酸的变温发酵研究[J].食品与发酵工业,2010,36(6):62.
-
[19]
SIVAGURUNATHAN P,SEN B,LIN C Y.Overcoming propionic acid inhibition of hydrogen fermentation by temperature shift strategy[J].International Journal of Hydrogen Energy,2014,39(33):19232.
-
[20]
惠明,田青,张彬,等.pH值对聚谷氨酸发酵液粘度及聚合物结构的影响[J].食品与发酵工业,2006,32(10):5.
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