酸值

The optimal fermentation process was found through detecting the contents of biotechnology fulvic acid. Results The optimal fermentation process was that inoculation 2%, the inoculation proportion of Candida tropicalis, Pseudomonas and Candida utilis as 1:2:2, 2.0% urea added in Jowar juice, pH 6.0, fermenting 72h at 30℃. The content of fulvic acid could reach more than 20%.

结果 确定了甜高粱秸秆汁发酵生产生化黄腐酸液肥的最适工艺条件：即接种量2%，热带假丝酵母、假单胞杆菌与产朊假丝酵母接种比例为1：2：2，在甜高粱秸秆汁中加入2.0%的尿素，pH值为6.0，发酵温度为30℃，发酵72h，黄腐酸含量达20%以上。

In the condition of the above mentioned, field experiments were done. The results showed that:The process was the inoculation proportion of Candida tropicalis, Pseudo monas and Candida utilis as 1:2:2, inoculation 2%, 2.0% urea added in Jowar juice, pH 6.0, fermenting 72h at 30℃. The content of fulvic acid could reach more than 20%.5% mixture of Azotobacter chooroccum, Phospho bacteria and Silicate bacteria (2:1:2) were added to the product. The total number of bacteria reached 10 /ml.

研究结果表明：用热带假丝酵母、假单胞杆菌和产朊假丝酵母组合进行液体发酵，接种比例1∶2∶2，接种量2%，在甜高粱秸秆汁中加入2.0%的尿素，pH值为6.0，发酵温度为30℃，发酵72h，发酵产物中生化黄腐酸含量可达20%以上；将圆褐固氮菌、磷细菌、钾细菌以2∶1∶2的比例，按5%加入到发酵产物中，三种细菌总的活菌数可达10~8个/ml；生化黄腐酸复合生物液肥对各种作物的产量均有不同程度的提高，经济效益显著。

This measurement scale is based on logarithms, because the range of possible concentrations of acid is enormous, ranging from none to a whole lot of acid.

这一测量值是以对数为基础，因为酸的浓度范围是非常巨大的，范围从一点也没有到很多很多的酸。

The influence of the neutralizer and pH on the yield and purity of phytin was studied.

以玉米淀粉厂浸泡液为原料提取植酸钙，研究了中和剂和pH值对植酸钙得率和纯度的影响。

For sensory irritation, NOEL values of cyanuric acid and ammelide were much lower than melamine, which indicated the higher risk of noteworthiness.

而且针对感觉刺激性作用途径，三聚氰酸和三聚氰酸一酰胺的NOEL值远低于三聚氰胺，提示其风险较高，需要引起注意。

In creating grain process,using compound counteracting material and opsonin to counteract pH,which solves the current congenerproduction problem of low pH and easy to harm seedling.Further,the effect applying technlogy of organic and inorganic compounded fertilize was brought forward on vegetable etc.

在造粒过程中，使用混合中和剂与调理剂调节肥料pH，解决了现有工艺生产的同类麸酸有机无机复混肥产品pH值低、易烧苗等问题；提出了麸酸有机无机复混肥在蔬菜等主要农作物上的高效施用技术。

Furthermore,enzymatic production of cephalexin using free penicillin G acylase in aqueous system wasstudied. The parameters, including pH, temperature, concentration of 7-ADCA and molar ratiosof 7-ADCA to phenylglycine methyl ester, that affect the yield of cephalexin, wereevaluated. In section Ⅱ, the integration technique of bioseparation and biosynthesis was investigatedfirst time in the enzymatic production of cephalexin.

第Ⅰ部分主要建立了对酶法合成头孢氨苄过程行之有效的HPLC检测方法，实现了头孢氨苄合成过程中所涉及的四种物质，即头孢氨苄、苯甘氨酸甲酯、苯甘氨酸及7-ADCA快速有效的检测；同时对水相体系中头孢氨苄合成过程的影响因素进行了研究，明确了水相体系中温度、pH值，底物浓度以及底物配比对酶法合成头孢氨苄得率的影响。

It is pointed out that under the condition of the temperature of 1120℃, the reaction time of 16 mm and the carbon content of 27%, the metal transformation rate of sponge iron used for general metallurgy is up to 90%. But the optimal carbon content is 29% for iron sponge to treat DSD acid oxidation wastewater. Under condition of the wastewater's pH value of 3 to 5 and the reaction time of 40min, the removal rates of COD and color are 68% and 90%, respectively. The BOD/COD ratio is up to 0.425 when DSD oxidation acid water is treated with sponge iron.

研究表明：在配碳量27%、反应温度1160℃、反应时间16min的情况下，以铁泥为原料制备的常规海绵铁的金属化率可达90%以上；用于处理DSD酸氧化废水的海绵铁适宜配碳量为29%，用制备出的海绵铁处理DSD酸氧化废水，在pH值3~5、反应时间40min时，出水的COD去除率可达68%、色度的去除率达90%、可生化性指标BOD/COD提高到0.425。

The composition and structure of sulfonate detergent were analyzed by means of infrared spectrometry.

用红外光谱法研究了磺酸盐清净剂的组成和结构，并以碳酸根官能团的红外光谱特征峰为依据，建立了磺酸盐清净剂碱值的预测模型，并与现行评定方法相关联，预测准确度较高，相对误差小于5%。

The result shows:(1) The value of pH of solution should be adjusted with phosphoric acid and sulphurous acid (1:2) at extracting pectin from apple pomace,and the pectin with the best color and quality was obtained.

研究结果表明：①用本试验所用的果渣提取果胶，应选用H_3PO_4和H_2SO_3混合酸(1：2)作为萃取剂调节溶液的pH值，所得粗果胶无论是产率还是色泽都优于其它酸萃取的效果。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。