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conditions
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    Optimization of Phaffia Rhodozyma Cultivation Conditions, Astaxnathin Extraction and Analysis
    法夫酵母虾青素发酵条件的优化及提取与分析研究
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    Studies on the conditions for reaction of enzymatic Phosphorylation of mucor aromaticus povah
    毛霉酶促磷酸化反应条件的研究
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    Studies on the Selection of Mutagenic Strain 80-72 and Its Glucoamylase-producing Conditions
    黑曲糖化酶高产诱变株80-72的选育及产酶条件的研究
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    Study on The Fermentative Conditions of Liquid Deep Fermentation of High Enzyme Activity Pectinase YPC-16
    高酶活果胶酶突变株YPC—16液态深层发酵条件的研究
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    STUDY ON MOLECULAR BREEDING AND CULTURE CONDITIONS FOR HIGH PRODUCTION OF PEN1CILLIN-G-ACYLASE
    青霉素酰化酶产生菌的分子育种及其产酶条件的研究
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  工艺条件
    The Optimum Technological Conditions of the Synthesis of Amprolium
    胺丙啉合成工艺条件优化
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    THE TECHNOLOGICAL CONDITIONS OF PRODUCING 2-KETO-LGULONIC ACID FROM D-GLUCOSE BY DIRECT FERMENTATION
    D-葡萄糖串联发酵生产2-酮基-L-古龙酸的工艺条件
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    Studies on the Technology Conditions of α-Amylase Fermentation from the Hydrolysate
    以水解液为原料的α-淀粉酶发酵工艺条件的研究
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    Experimental Study on the Technological Conditions ofα-Amylase Fermentation
    α-淀粉酶发酵工艺条件试验研究
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    Study on Oil Selective Hydrogenation Catalyst and Conditions of Hydrogention
    油脂选择性氢化催化剂及氢化工艺条件的研究
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    Study on Alkaline Amylase from Alkatophilic Bacillus Megaterium ──The Conditions for Enzyme Preduction and Enzymic Propernes
    耐碱性芽孢杆菌碱性淀粉酶的研究──发酵试验与酶的性质
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    Influence of Substrate and Growth Conditions on Hg 1-x Cd xTe Liquid Phase Epitaxial Films
    衬底及生长工艺对Hg_1-_xCd_xTe液相外延薄膜的影响
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    Objective To screen a strain with high production of pullulan,high utilization of sugars and low secretion of pigment from As3.3984,As3.837,As3.933.Methods The viscosity of fermentation broths of As3.3984、As3.837、As3.933 under the same conditions was determined.
    目的从3株产普鲁兰糖出芽短梗霉As3.3984,As3.837,As3.933中筛选1株产量及糖转化率高、分泌色素低的菌株作为出发菌株。
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    It was discussed that the effects of extracting pressure, temperature and time on the extraction efficiencies of the camellia oil by supercritical CO2.The optimal extracting conditions are determined: extracting pressure 25MPa, the temperature 40℃ and the time 2.5 hours. The extraction efficiencies of camellia oils was up to 97.5%.
    研究了超临界CO2萃取茶油时,萃取压力、温度、时间对茶油提取率的影响,结果表明,萃取压力25MPa,温度40℃,萃取时间为2.5h时,茶油的提取率达到97.5%。
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    The oil yield at efficient conditions was 7.25‰.
    最佳工艺验证试验的杏仁精油得率为7.25‰。
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  conditions
As a consequence, the action is linearizable if certain topological conditions are satisfied.
      
An algebraicG-varietyX is called "wonderful", if the following conditions are satisfied:X is (connected) smooth and complete;X containsr irreducible smoothG-invariant divisors having a non void transversal intersection;G has 2r orbits inX.
      
Here we provide certain conditions (more general than those in [Ka1]) which guarantee preservation of the topology under a modification.
      
We express the vanishing conditions satisfied by the correlation functions of Drinfeld currents of quantum affine algebras, imposed by the quantum Serre relations.
      
We discuss the relation of these vanishing conditions with a shuffle algebra description of the algebra of Drinfeld currents.
      
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Skim serum is an industrial effluent from rubber factories. It is of higher BOD and contains about 1% protein and 0.05-0.3% ammoniacal nitrogen, etc. The effluent was used to culture Geotrichum candidum as SCP(single-cell protein) feed, thus reducing environmental pollution. This paper describes the optimum technical conditions for culturing Geotrichum candidum with skim serum effluent.The experiments were carried out on a multifactorial and orthogonal design. The results showed that, among the four strains...

Skim serum is an industrial effluent from rubber factories. It is of higher BOD and contains about 1% protein and 0.05-0.3% ammoniacal nitrogen, etc. The effluent was used to culture Geotrichum candidum as SCP(single-cell protein) feed, thus reducing environmental pollution. This paper describes the optimum technical conditions for culturing Geotrichum candidum with skim serum effluent.The experiments were carried out on a multifactorial and orthogonal design. The results showed that, among the four strains used, Geotrichum candidum Shuntang No.2 recorded the highest VPE. When 1-1.5% of carbon source was added to the skim serum medium, Geotrichum candidum grew very well on it and the cell yield(dry wt.) accounted for 1.5%. Besides, the reducing sugar consumption was lower. The ratio of cell (on dry wt. basis) to reducing sugar consumption was 1:0.6. The residual sugar in the medium was less than 0.1%.We came to the conclusion that the optimum technical conditions for culturing Geotrichum candidum with skim serum effluent are: molasses used as carbon source, carbon-nitrogen ratio (C:N)-10:1, aeration=1:1 (V V), pH 5.5, fermenting duration 9-10 hours, fermenting temperature 29°—/31℃, stirring speed 450 rpm.In addtion to 53.85% of crude protein, 3.65% of fat and 6.34% of nucleic acid, Geotrichum candidum grown on this medium contained 18 amino acids and vitamin B, but its aflatoxin B_1 was less than 5ppb. These cells are highly nutritious. They may be used as SCP feed for poultry and livestock, or for extracting nucleic acid, thereby reducing BOD.

胶清废水系天然橡胶初加工时的一种工业废水,具有较高的生化需氧量(BOD),其中约含有1%蛋白质,0.05~0.3%氨态氮等。我们曾利用这种废水培养白地霉(Geotrichum candidum)作为单细胞蛋白饲料,从而减少对环境污染。本文叙述了利用胶清废水培养白地霉的最适工艺条件。试验采用多因子正交设计法。试验结果表明:在采用的四个菌株中以顺糖2号自地霉的容积生产效率(VPE)最高,在培养基中仅需添加1~1.5%的碳源,该菌株在胶清废水中就能良好生长,干菌体产量达1.52%。此外,耗糖少(菌体与还原糖之比为1:0.6),残糖低(0.1%以下)。试验表明,最适培养条件是:糖蜜作碳源、碳氮比10:1,通气量(V/V)1:1,pH值5.5,发酵时间9~10小时,温度29~31℃,搅拌速度450转/分等。其菌体含粗蛋白质53.85%,脂肪3.65%,核酸6.34%,并含有18种氨基酸,具有赖氨酸等8种营养必需的氨基酸,和乙族维生素等,黄曲霉毒素B_1<5 ppb。所得菌体营养丰富,不仅供作禽畜的单细胞蛋白质饲料,并可抽提核酸,同时可减少胶清废水的生化需氧量(BOD)。

In the reaction system of enzymatic phosphorylation of M. aromaticus, the time of the geak accumulation of ATP could be postponed by the high concentration of glucose; high concentration of phosphate could promote the enzymatic phosphorylation. The coordination of glucose, phosphate and reaction time has a decisive effect on gramme molecule change effiency of ATP. One gramme of fresh mycelia changes 75 M AMP into ATP under appropriate laboratory. The appropriate conditions of reaction were: glucose 250,...

In the reaction system of enzymatic phosphorylation of M. aromaticus, the time of the geak accumulation of ATP could be postponed by the high concentration of glucose; high concentration of phosphate could promote the enzymatic phosphorylation. The coordination of glucose, phosphate and reaction time has a decisive effect on gramme molecule change effiency of ATP. One gramme of fresh mycelia changes 75 M AMP into ATP under appropriate laboratory. The appropriate conditions of reaction were: glucose 250, K_2HPO_4 350, AMP 30, Mgcl_2 30 μMol/ml, PH7.5, methybenzene 5%, fresh mycleia 40% (w/v), 35℃, 3hrs.

本文较详细的研究了毛霉酶促磷酸化的反应条件,并讨论了反应体系中各种因素对其酶促磷酸化的影响。在试验中发现高浓度葡萄糖能推迟ATP累积高峰出现的时间;高浓度磷酸盐能促进磷酸化反应;葡萄糖、磷酸盐和反应时三者的配合关系对ATP克分子转化率影响较大。最后用正交试验确定了酶促反应的较佳方案。

This paper describes a quick and easy qualitative test and the paper chromatographic qualitative test of malicci cid. The experimental processes and methods of the direct fermentation of L-malic Acid by Aspergillus Species will be Summarized. The ASP. Weetii, ASP. Niger, ASP. flavus. and ASP. oryzae have been isolated from Soil. The C~6_0~0-ray, 5-FU and high Temperatuve have been used respectivly or combinedly To treat Some of the Species in the experiment. We have obtained some mutants from the wild type strains...

This paper describes a quick and easy qualitative test and the paper chromatographic qualitative test of malicci cid. The experimental processes and methods of the direct fermentation of L-malic Acid by Aspergillus Species will be Summarized. The ASP. Weetii, ASP. Niger, ASP. flavus. and ASP. oryzae have been isolated from Soil. The C~6_0~0-ray, 5-FU and high Temperatuve have been used respectivly or combinedly To treat Some of the Species in the experiment. We have obtained some mutants from the wild type strains of ASP. flavus 304, a L-malic Acid producing Strain ASP. flavus T18(having a resistance To Zn~(++) and high temperature). Under suitable conditions Strain T18 accumulate L-malic Acid 3.31g/dl in shaking flask and the conversion efficiency by weight of the to tal Starch is 30%.

本文叙述了苹果酸的快速简易定性法和纸层析定性法。概述了用曲霉属的一些菌种的L-苹果酸直接发酵的实验过程和方法。由土壤里分离出温氏曲霉、黑曲霉黄曲霉和米曲霉。实验中使用了C_0~(60)射线、5氟尿嘧啶和高温分别地或复合地处理一些菌种。我们从黄曲霉野生型菌株中获得到一些变异株,L-苹果酸产生菌株黄曲霉T18(具有抗Zn~(++)和耐高温)在适宜条件下摇瓶中积累L-苹果酸3.31克/分升,总淀粉重量转化率为30%。

 
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