propanediol 中文意思是什麼

propanediol 解釋
丙二醇
  1. The 1, 3 - propanediol titers of 36. 09 g 1 - 1 and 45. 22 g 1 - 1 have been obtained by using two - stage fermentation with two substrates and microaerobic fermentation in the fed - batch culture of klebsiella pneumoniae m5al, respectively, which greatly exceeded the level that can be achieved in china

    運用雙底物兩步法和微氧法對klebsiellapneumoniaem5al菌株進行補料批式培養，發酵液中1 ， 3 -丙二醇濃度分別可達36 . 09gl ~ （ - 1 ）和45 . 22gl ~ （ - 1 ） ，較國內所能達到的水平有很大提高。
  2. The promotion action of ionic liquid as an accelerant in synthesizing benzaldehyde ethanediol acetal and benzaldehyde propanediol acetal was studied

    摘要以離子液體為促進劑，強酸性聚苯乙烯732催化了苯甲醛與兩種二元醉的縮醛反應。
  3. Two pta - mutants have been selected by using suicide substrate after the mini - tn5 transposon insertion mutagenesis of klebsiella pneumoniae m5al. when used in microaerobic fermentation, the amount of acetate produced by the mutants reduced to less than 50 % of the parent strain, and the yields improved whereas the 1, 3 - propanediol titers and productivities decreased

    以klebsiellapneumoniaem5al為出發菌株，用mini - tn5隨機轉座誘變結合自殺性底物篩選的方法得到了兩株產乙酸途徑pta基因缺失突變株xl - 6和xl - 11 ，應用到微氧法發酵中，突變株的乙酸產量為親株的50以下，甘油轉化率有所提高，但1 ， 3 -丙二醇濃度和生產強度有所下降。
  4. Besides policy factors, five methods of cost - cutting of biodiesel are reviewed, including new raw material with higher oil content, shorter regeneration cycle, which is suitable for infertile soil and different climatic conditions ; heterogeneous catalysts ; new technologies ( e. g. supercritical methanol and ultrasonics ) ; higher added value utilization of by - product glycerin with simple method ( propylene oxide chloride, 1, 3 - propanediol, pyruvic alcohol etc. ) and moderate scale of production

    摘要綜述了除政策因素外，降低生物柴油生產成本的5種方法：選擇含油率高、再生周期短、適應貧瘠土地及不同氣候條件的新型植物原料；研究新型固體催化劑；引入新工藝（超臨界法和超聲波法） ；使用比較簡便的方法將廢棄的甘油轉化為高附加值的產品（環氧氯丙烷、 1 ， 3 -丙二醇、丙酮醇等）以及適度生產規模等。
  5. Three industrialized synthetic processes of propanediol are recounted

    摘要簡述了己工業化的1 ， 3 -丙二醇的3種合成路線。
  6. The research progress on the production technique for 1, 3 - propanediol is reviewed

    摘要綜述了1 ， 3 -丙二醇生產工藝的研究進展。
  7. Whether the mutants are able to improve the 1, 3 - propanediol titers, yields and productivities will be investigated in the fermentation later

    突變株將應用到發酵中以研究其能否提高1 ， 3 -丙二醇產量和甘油轉化率。
  8. The study progress of biodiesel and 1, 3 - propanediol integrated production and its application are introduced in this paper

    本文詳細介紹了生物柴油及1 ， 3 -丙二醇生產技術及聯產工藝的研究進展，並對其應用前景進行了展望。
  9. The integrated production of biodiesel and 1, 3 - propanediol can solve the utilization of byproduct glycerol of biodiesel production and reduce the cost of 1, 3 - propanediol production

    以生物柴油副產物甘油為原料耦合生產1 ， 3 -丙二醇，不僅解決了生物柴油副產物甘油的出路問題，同時降低了1 ， 3 -丙二醇的生產成本。
  10. It is proposed that in order to improve the production process for 1, 3 - propanediol, it should further enhance the technique level, decrease the production cost and make ptt has competitive advantage compared with pet, pbt, and pa66, which is the key to produce 1, 3 - propanediol at large scale

    提出1 ， 3 -丙二醇生產工藝的改進方向在於進一步提高技術指標，降低生產成本，使得下游ptt聚酯與pet 、 pbt和pa66相比較更具有競爭優勢，這是1 ， 3 -丙二醇形成規模化生產的關鍵。
  11. The inhibition potentials of substrate and products on the growth of microorganism cell will limit the product titer, the yield of 1, 3 - propanediol on glycerol and the productivity of 1, 3 - propanediol, and then make the product recovery and purification a troublesome task. this can be effectively solved by blocking the pathways leading to the byproducts that are of no benefit to 1, 3 - propanedil production

    底物和多產物抑制是造成微生物發酵法1 ， 3 -丙二醇產量和甘油轉化率低，後期提取困難的主要原因，切斷無益副產物的產生途徑將提高1 ， 3 -丙二醇產量和甘油轉化率，並簡化後期提取工藝。
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