最佳值

The effect is obvious by the diffierent extraction, the Pitaya conditions of extracting pH, extracting temperature, extracting time were determined by mono factor and orthogonal experiment.

使用不同的提取剂对色素提取有较大的影响，通过单因素和正交实验确定乙醇提取火龙果果皮色素的pH值、液料比、浸提温度和浸提时间的最佳方法。

Wastewater treatment by modified polysilicic aluminum chloride.

结果表明，最佳制备条件为：pH值5~6，SiO2浓度2.5%，温度20~30℃，Al/Si摩尔比1.0。

The results showed that: the explants of strawberry leaves were rather sensitive to kanamycin, and the corresponding concentration of 20 mg/L could substantially inhibit the growth of non-transformed tisse and be used to screen the leaves of strawberry after transformation. Timentin at the concentration of 300 mg/L could be used to eliminate Agrobacterium tumefaciens and had minor impact on the growth of the explants. The preculture time of 2-4 days was beneficial to improve transformation frequency. Co-culture for 2-3 days not only had higher gus transient expression but also avoid the over-growth of agrobacterium. The bacterial concentration of OD(subscript 600nm) 0.4 was the best inoculum density and 10 minutes was the best inoculation time.

结果表明：草毒叶片外植体对卡那霉素较为敏感，适宜的筛选浓度为20mg/L，可明显抑制非转化组织的生长；300mg/L的羧吩青霉素可有效抑菌，对外植体生长影响也较小；预培养2-4d有利于转化；共培养2-3d有利于提高转化频率并避免了农杆菌的过度生长；OD(下标 600nm)值为0.4的菌液侵染10min效果最佳。

The preculture time of 2-4 days was beneficial to improve transformation frequency.Co-culture for 2-3 days not only had higher gus transient expression but also avoid the over-growth of agrobacterium.The bacterial concentration of OD_(600nm) 0.4 was the best inoculum density and 10 minutes was the best inoculation time.

结果表明：草莓叶片外植体对卡那霉素较为敏感，适宜的筛选浓度为20mg/L，可明显抑制非转化组织的生长；300mg/L的羧吩青霉素可有效抑菌，对外植体生长影响也较小；预培养2-4d有利于转化；共培养2-3d有利于提高转化频率并避免了农杆菌的过度生长；OD600nm值为0.4的菌液侵染10min效果最佳。

Affinity chromatography materials for kinase;2. To search a suitable process route of purification of kinase in yeast by affinity chromatography, hexokinase was preparatorily purified by salt preciptation.

为确定一条采用亲和层析技术分离纯化酵母中磷酸激酶的较佳工艺路线，采用分步盐析初步纯化己糖激酶，考察硫酸铵饱争度对盐析效果的影响；以ATP为配基，SESA活化纸纤堆素制备亲和层析剂，确定最佳偶联条件和最佳静态吸附pH值后，将粗酶液直接上亲和层析柱，看分离纯化的效果；在载体和配基之问接上1。

Carbon source,nitrogen source,cultivation temperature,the initial pH of the culture medium,the speed of shaker are involved in the experiments,and the evaluation of retting is based on the residual gum content in retted flax roving.Then flax roving treated under the optimal conditions is compared with untreated roving in ingredient analysis,scanning electron microscope and infrared spectrum analysis.The result shows that the microbe treat...

用筛选出的一种真菌对亚麻粗纱生物处理的工艺进行了探讨，以残胶率作为评定标准，研究了碳源、氮源、温度、pH值、摇床转速对亚麻粗纱生物处理效果的影响，并在最佳工艺下对亚麻粗纱再处理，对处理后的粗纱进行成分分析、扫描电镜、红外光谱等测试，结果表明：亚麻粗纱的生物处理是可行的。

The rodlike nano barium ferrite was prepared in the conditions of pH=4,calcination temperature at 850℃ f...

通过对几个主要参数的摸索，得出制备棒状钡铁氧体的最佳工艺条件：pH值为4，煅烧温度为850℃，煅烧时间2h。

The quality variety of whole chicken soft canduring the microwave sterilization was studied and the result found that:the longer the microwave sterilization time,the worse the sensive evaluation;when the microwave sterilization time increased,the temperature of WCSC increased continuously,the fat oxidated more and more quickly,the POV became more and more higher;by the microwave sterilization went on,the water in tissue of WCSC vaporized and out flew,the content of water in WCSC declined;the longer th...

研究了整鸡软罐头在微波杀菌过程中品质的变化，研究发现：微波杀菌时间越长，总体感官品质越差；微波杀菌时间增加，整鸡软罐头温度升高，脂肪氧化速度加快，过氧化值增高；随着微波杀菌的进行，水分不断从整鸡组织中蒸发和流失，0～10min下降速度快，此后减慢；微波杀菌时间越长，杀菌效果越好，10min时微生物被杀灭。研究结果表明：能较好的保持鸡肉软罐头的感官品质，又能实现25℃以下保藏6个月以上的最佳杀菌工艺为：整鸡重量0.8±0.1kg，微波频率2450MHz，功率670W，微波杀菌时间10min。

The optimum parallax value of making stereopicture from flat-image with the size of 30 cm×40 cm has been advanced by the experiments and some factors, which have influence on making stereopicture from flat-image.

通过实验，给出了30cm×40cm的平面立体化图像的最佳位错值，讨论了影响平面图像立体化的若干因素。

In my work, mesoporous lamellar zincum sulfide is synthesized by hydrothermal techniques, with CTAB as templates and Zinc acetate and sulfourea as precursors. The best reactive condition is as follows: the ratio of reactive components is CTAB:Zinc acetate:sulfourea:water=1:3:10:1388; the volume of pH is 4.4; the best hydrothermal parameter is 100℃ for 48h.

以十六烷基三甲基溴化铵为模板剂合成层状介孔硫化锌的最佳反应条件为CTAB：Zn2：(NH2)CS：H2O=1：3：10：1388，pH值范围为3.8-5.8， 100℃下水热48h，此时得到的样品呈现一套层状介孔结构，相应的晶面间距为33.0 A，16.7 A，11.1 A。

Finally, according to market conditions and market products this article paper analyzes the trends in the development of camera technology, and designs a color night vision camera.

最后根据市场情况和市面上产品的情况分析了摄像机技术的发展趋势，并设计了一款彩色夜视摄像机。

Only person height weeds and the fierce looks stone idles were there.

只有半人深的荒草和龇牙咧嘴的神像。