最佳条件

The results showed that the significance of the effects of these factors on the oil extraction efficiency decreaseed in the order:extraction pressure, time, temperature and entrainer dosage, and the maximum extraction efficiency of watermelon seed oil could reach 52.18% under the extraction pressure of 40 MPa, temperature of 45℃, time of 150 min and the ethanol dosage of 7%.

结果表明，影响西瓜籽油萃取率的因素主次顺序为：萃取压力＞萃取时间＞萃取温度＞夹带剂用量；最佳提取条件为萃取压力40 MPa，萃取温度45℃，萃取时间150 min，夹带剂乙醇用量7%。在最佳条件下西瓜籽油萃取率为52.18%。

Optimum conditions for the treatment of wastewater from piperonal production with Fenton reagent were determined through experiments.

通过试验，确定了Fenton试剂法处理洋茉莉醛生产废水的最佳条件是：pH为3.0，H2O2与Fe2+的最佳摩尔比为10∶1，每200mL废水需H2O2(30%)的最佳用量为20mL。

The results show that the optimal parameters of esterification are as follows: 4% of SO42-/ZrO2, molar ratio of methanol to litsea cubeba kernel oil 101, 68 ℃ of reaction temperature and 4 h of reaction time, the acid value decreases to 2.52 mg/g. Compared with the traditional acidic-catalyzed method, this method has the advantages of no acid proof equipment, easy to recycle catalyst and no acidic waste water emission. The optimal parameters of transesterification are as follows: 25 ℃ of reaction temperature, 0.5% of hexadecyl-trimethyl-ammonium bromide, 1% of NaOH, molar ratio of methanol to the oil 61 and 15 min of reaction time. The ester exchanging rate is 97.6%. This method adopts phase transfer catalyst and produces industry prospect, which has many advantages such as energy-saving and time-saving under room temperature.

研究结果表明，固体酸SO42-/ZrO2催化酯化反应的最佳条件为：油重4%的SO42-/ZrO2，醇油摩尔比为101，温度为68 ℃，反应时间为4 h，原油酸值降到2.52 mg/g；该法相对浓硫酸催化酯化法具有不需耐酸设备、催化剂易回收、无废水排放等优点；相转移催化酯交换反应的最佳条件为：温度为 25 ℃，0.5%的十六烷基三甲基溴化铵，油重1%的NaOH，醇油摩尔比为61，反应15 min，原油酯交换率达到97.6%；采用相转移催化技术，反应在常温下进行，大大减少了能耗，缩短了反应时间，具有的产业化前景。

The orthogonal test design was used to arrange sequent experiments to test the effect of the four main factors,i.e.,consistency of ethanol,times of reflux,extraction time and temperature on the concrete yield of Lysimachia foenum graecum Hance,and to establish the optimal extraction conditions.

用 L9(34 )正交设计法进行灵香草浸膏的提取试验，研究乙醇浓度、提取温度、提取时间、回流次数对浸膏得率的影响，确定提取灵香草浸膏的最佳条件后，再对所得粗产品进行脱色试验，优选出粗浸膏脱色的最佳条件。

The optimum conditions of reaction of each reaction:(1) The synthesis condition of PS with monocarboxylic acid terminated is that the mole ratio reatant of FeCl2·4H2O/chloroactic acid was 2.0, the reaction temperature 110℃, the reaction time

各步的最佳聚合反应条件：(1)mPEG与丁二酸酐反应最佳条件：溶剂为甲苯

Digestion conditions, working conditions of atomic fluorescence spectrometer and conditions of hydride generation reaction were studied. Methods for the reduction from Se to Se by using boiling water bath and UV were compared. The amount of sulfamic acid for the elimination of the interference of nitrogen oxides was also investigated.

探讨了消解条件、原子荧光光度计工作条件及氢化物发生反应条件，对比沸水浴加热和紫外光加热2种将Se还原为Se的方法，研究氨基磺酸消除氮氧化物干扰的最佳条件。

After rescreened,a strain F00 (named temporarily F00, the same to the following),with highest flocculating activity was picked up.Using optimized and orthogonal tests, the optimum culture conditions are: Sugar as source of carbon, Cargamide as source of nitrogen,added P, Mg, K, Zn, Mn mineral elements, initial pH value 6.5, inoculation 4-5 x 104spores/ ml, temperature 30癈 and aerations 80 rpm.

通过用它作接种量、培养基优化及最佳发酵条件正交试验，确定F_(00)产生絮凝剂最佳条件：发酵培养基以蔗糖作碳源，尿素作氮源，辅加磷、镁、钾、锌、锰等矿质元素，初始pH值6.5，接种量为每毫升发酵液起始含4～5×10~4个孢子，发酵温度30℃，摇床转速80rpm。

Then, they were transferred into the mycelium culture fluid which includes 30% sucrose and 1% or 1.5% glycin under the condition of 20℃, 150 rpm for 48 h. In order to obtain protoplasts of mass and high quality, the strain F46 protoplasts given after combination use of the 10 mg·mL-1 lysozyme and 10 mg·mL-1 snailase at 34℃for 3 h; and the SC1 was treated by 10 mg·mL-1 lysozyme at 34℃for 2.5 h.

确定了双亲原生质体形成与再生的最佳条件：菌株F46、SC1采用二次菌丝培养，即在蔗糖含量20%菌丝培养液里，25℃条件下150 rpm培养48 h；然后按15%的接种量转接到蔗糖含量30%，甘氨酸含量分别为1%、1.5%的菌丝培养液中，同样条件下，继续培养48 h；在34℃条件下，菌株F46用等量混合的蜗牛酶和溶菌酶20 mg·mL-1，菌株SC1用10 mg·mL-1溶菌酶，分别酶解3 h、2.5 h，不仅有大量的原生质体形成，且再生率也高。

We found the optimal reaction conditions,explored different catalyst system;in the best conditions,we have synthesis a large number of imines with vary complex substituents in the optimal conditions.

我们找到了反应的最佳条件，探讨了不同的催化体系；在最佳条件下，高产率的合成了大量含复杂取代基的亚胺。

ResultThe best formula of the solid culture medium was ascertained to be castanea spp particle contents 70 g, corn flour contents 35, gypse contents 2 g, white sugar contents 1 g; the best formula of the liquid culture medium have been ascertained to be corn flour 4.2 g/100ml , castanea spp juice 5 g/100ml, dissolve for oxygen condition static culture, not being put into rocking bed.

结果固体培养基的最佳配方为栗木屑含量70 g，玉米粉含量35 g，石膏含量2 g，白糖含量1 g；大白栓菌液体培养的最佳条件是玉米粉4.2 g/100 ml，栗木汁5.0 g/100 ml，溶氧条件为静置培养。

Plunder melds and run with this jewel!

掠夺melds和运行与此宝石！

My dream is to be a crazy growing tree and extend at the edge between the city and the forest.

此刻，也许正是在通往天国的路上，我体验着这白色的晕旋。