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浸提物
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  “浸提物”译为未确定词的双语例句
     All the solvents had very good anti-feeding effect,the rate of which were 88.38 %,79.07 %,89.60 % and 69.77 % after 24h,85.25 %,72.27 %,83.85 % and 44.21 % after 48 h,respectively.
     乙醇、氯仿、丙酮、水4种溶剂浸提物对3~4龄的菜青虫非选择性拒食率24 h时依次为88.38%、79.07%、89.60%、69.77%; 48 h时依次为85.25%、72.27%、83.85%、44.21%。
短句来源
     The extractives content of hot-water is higher, and its variant range in radial direction is from 5.87% to 8.48% with the average of 7.08%.
     日本花柏浸提物含量较为稳定,径向变异范围5.87%~8.48%,平均值为7.08%。
短句来源
     Optimized fermention condition of strain TK4242 is as follows: the medium is 20 g of malt extract, 15 g of KN03, 5 g of yeast extract, 2 g of peptone, 4 g of CaCO3, 4 g of NaCl; 1,000mL of 50% sea water; pH 7.2-7.4;
     菌株TK4242发酵条件优化为:麦芽浸提物20g,硝酸钾15g,酵母粉5g,蛋白胨2g,NaCl4g,CaCO_3 4g,50%陈海水1,000mL,pH 7.2~7.4,装液量为100mL/1,000mL三角瓶,发酵时间为6d。
短句来源
     The quantitative determination resulted in 2.6% extractives, 25.5% lignin, 45.3% alpha-cellulose, and 24.6% pol-yoses.
     定量测定的结果,浸提物为2.6%,木素25.5%,α-纤维素45.3%,多糖24.6%。
短句来源
     Maximum gallic acid yield ( 83.8%) was obtained after Escherichia coli was cultivated aerobicly in 100mL liquid culture medium with 7g/L tara tannin extract and 1g/L complementary urea on snaker (120 rpm) at initial pH 6.0 and 28℃for 28h, while maximum tannin reduction rate (43.6%) was obtained after 5g/L glucose was supplied instead of urea in the same degrading conditions above.
     当塔拉单宁浸提物浓度为7 g/L、补充的尿素浓度为1 g/L、初始pH为6.0、250 mL锥形瓶装液量为100 mL、28℃振荡(120 rpm)培养28 h时,棓酸产率可达83.8%; 当补充的葡萄糖浓度为5 g/L时,塔拉单宁降解率可达43.6%。
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  相似匹配句对
     Study of Bacteriostasis of Extracts from Orange Peel
     桔皮浸提物抑菌作用研究
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     Study on the Effects of Allelopathy from Wheat Straw Extracts
     小麦秸杆浸提物的化感作用研究
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  educt
The spot (rf 0.7) which had an intensity >amp;gt;5% of the educt spot, depending on the irradiation dose, was eluted and concentrated from preparative TLC plates.
      
The calculation of the transformation matrix between the molecular orbitals of the transition state and the educt provides detailed information on the alteration and interaction of the MO's along the reaction coordinate.
      
The calculation of the transformation matrix between the molecular orbitals of the transition state and the educt provides detailed information on the alteration and interaction of the MO's along the reaction coordinate.
      
Description of interactions in molecular complexes by linear combination of educt orbitals
      
But the spectra indicate further chemical states of Rh which can be assigned to the outermost metal atoms of the colloid interacting with organic ligands or to the educt Rh-halides.
      
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Extracts from bark of Larix gmelini (Rupr.) Rupr. was studied to examine its potential value as bonding agent for particleboard without adding any synthetic resin. Starting from the extraction of raw material till the qualification tests of final products, some encouraging repeated results through the whole process were obtained. Extraction by 3 % sodium carbonate and sulfited was suitable. The yield could reach 30% based on oven-dried bark and its reactive phenolics up to 78%. Extracts were prepared both in...

Extracts from bark of Larix gmelini (Rupr.) Rupr. was studied to examine its potential value as bonding agent for particleboard without adding any synthetic resin. Starting from the extraction of raw material till the qualification tests of final products, some encouraging repeated results through the whole process were obtained. Extraction by 3 % sodium carbonate and sulfited was suitable. The yield could reach 30% based on oven-dried bark and its reactive phenolics up to 78%. Extracts were prepared both in desired concentrated liquid form and in dried powder. The powder was preferable due to the convenience for handling and kept for a year in room temperature without changing its effectual properties. Mixed planer shavings from ash and bass wood were first sprayed by concentrated extracts or by dissolved powder extracts which was easily soluable in hot water at about 60℃. Then, small amount of fine powdered paraformaldehyde was added to the shavings and the whole mass was well mixed for pre-pressing board. Schedule of hot press at 140℃ and 170℃ both under three-steps pressure was applied respectively. Types of particleboard of 1 cm. and 2 cm. in thickness were made and their density ranging from 0.67 to 0.80 g/cubic cm. which were mostly in the category of medium-density. Qualification tests such as modulus of rupture, tensile strength and thickness swelling were all met specification of our national standard. The progress in this field was reviewed and other related problems were discussed. This study proved that it is feasiable to use larch bark extracts as adhesive for particleboard with many advantages. To broaden the usage of this extracts and more barks from different tree species should be studied.

我们在研究落叶松树皮化学的基础上。根据它含有较高的多酚类和黄酮类化合物的特点应用其与甲醛反应的聚合性能,试验作为木工胶粘剂以供生产上的需要。这项研究以兴安落叶松树皮为主要原料,通过浸提、制胶、压板和质量测验等连续性的反复室内试验,先从刨花板开始验证其利用价值取得预期结果。采用稀碱直接处理树皮方法所浸提出干物质的得率按干树皮计可达30%,其中有用的反应物质达78%左右。浸提物可制备成浓缩液态或制成干粉更便于装运保存并易于热溶,质量不变。压板配胶主要用树皮胶粉及少量多聚甲醛,除石蜡外不加其它任何胶类或增强剂,施胶可用热溶约60℃胶水喷洒或将于胶粉洒匀,按一般三段加压,分别用140℃及170℃热压,制成1厘米及2厘米厚度的中密度刨花板,产品各项质量可达国家规定的一级品标准。综合分析衡量各方有关问题,认为落叶松树皮胶的一些优点是:一、资源丰富,得率较高;二、质量良好,成本较低;三、工艺简单,易于推广。此外,综合了国内外这类工作进展概况,展望未来,认为这类胶是有发展前途的。进一步研究使其能代替酚醛胶类,这对节约能源是有利的。即便作为一般木工胶以缓和胶源紧张也不应视为权宜之计。将来深入研究树皮多酚类和黄酮类化...

我们在研究落叶松树皮化学的基础上。根据它含有较高的多酚类和黄酮类化合物的特点应用其与甲醛反应的聚合性能,试验作为木工胶粘剂以供生产上的需要。这项研究以兴安落叶松树皮为主要原料,通过浸提、制胶、压板和质量测验等连续性的反复室内试验,先从刨花板开始验证其利用价值取得预期结果。采用稀碱直接处理树皮方法所浸提出干物质的得率按干树皮计可达30%,其中有用的反应物质达78%左右。浸提物可制备成浓缩液态或制成干粉更便于装运保存并易于热溶,质量不变。压板配胶主要用树皮胶粉及少量多聚甲醛,除石蜡外不加其它任何胶类或增强剂,施胶可用热溶约60℃胶水喷洒或将于胶粉洒匀,按一般三段加压,分别用140℃及170℃热压,制成1厘米及2厘米厚度的中密度刨花板,产品各项质量可达国家规定的一级品标准。综合分析衡量各方有关问题,认为落叶松树皮胶的一些优点是:一、资源丰富,得率较高;二、质量良好,成本较低;三、工艺简单,易于推广。此外,综合了国内外这类工作进展概况,展望未来,认为这类胶是有发展前途的。进一步研究使其能代替酚醛胶类,这对节约能源是有利的。即便作为一般木工胶以缓和胶源紧张也不应视为权宜之计。将来深入研究树皮多酚类和黄酮类化合物的基础理论并扩大树种和用途,可为充分合理利用

By using solvent fractionation, chromatographic and other instrumental analysis, three fractions have been isolated from acetone extracts of larch bark and studied. Analytical data suggest that the constituents from ethyl acetate fraction E2IIIa is dl-epicatechin. The properties of E1I from ethyl ether fraction and the water insoluble fraction E3 from acetone extract are very similar to those of catechin. Thus, it can be considered that larch tannin is derived from catechin and its tanning properties should...

By using solvent fractionation, chromatographic and other instrumental analysis, three fractions have been isolated from acetone extracts of larch bark and studied. Analytical data suggest that the constituents from ethyl acetate fraction E2IIIa is dl-epicatechin. The properties of E1I from ethyl ether fraction and the water insoluble fraction E3 from acetone extract are very similar to those of catechin. Thus, it can be considered that larch tannin is derived from catechin and its tanning properties should be basically identical with those of catechol tannins and areca tannin.

落叶松树皮的丙酮浸提物,通过溶剂分组、色谱分析及仪器分析,已分离出3个单体,其中从乙酸乙酯分组中分离出的E_2Ⅲ_a组分,根据分析的数据推测,认为是d1-表儿茶素。从乙醚分组中分离出的E_1Ⅰ组分和丙酮浸提物中水不溶E_3组分分析数据,说明其性质与儿茶素很相似。因此,可认为落叶松单宁中的一部分是以真儿茶素为母体的一种单宁,其鞣革性能基本上应与儿茶单宁及槟榔单宁相同。

The isolation of water extracts of larch bark was carried out by cellulose column and centrifugal thin layer chromatography with different solvents for elution. A series of fractions were obtained of which six were simple components. Fraction II and ⅢB1 were analyzed and identified. Their crystalline forms,melting points,Rr-values (paper chromatography), ultraviolet absorption spectra and Infrared spectra indicate that fraction II may be catechin and ⅢB1 the isomer of epicatechin. All results obtained are identical...

The isolation of water extracts of larch bark was carried out by cellulose column and centrifugal thin layer chromatography with different solvents for elution. A series of fractions were obtained of which six were simple components. Fraction II and ⅢB1 were analyzed and identified. Their crystalline forms,melting points,Rr-values (paper chromatography), ultraviolet absorption spectra and Infrared spectra indicate that fraction II may be catechin and ⅢB1 the isomer of epicatechin. All results obtained are identical with literatures on catechines. However, the constitutions of these components could not be confirmed yet. Further work is processing.

落叶松树皮水浸提物,以纤维素粉作吸附剂,60%乙醇水作洗脱剂,进行了柱色谱的粗分与细分;应用纸色谱,离心薄层层析仪,高压液相色谱,反复分离,检查测定单一性组分,进行合并分级。计得到6个单一性组分,其中级分Ⅱ和Ⅲ_(B1)依据测得的R_f值,品体形、熔点和紫外与红外光谱特征,并参考文献资料记载的数据,可以推测后者是表儿茶素的一种异构体,前者是一种儿茶素。现仍在进行试验作最后鉴定。

 
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