nitrogen source 中文意思是什麼

nitrogen source 解釋
氮源物質
  • nitrogen : n 【化學】氮,氮氣。 nitrogen chloride 三氯化氮。 nitrogen cycle 氮循環。 nitrogen dioxide 二氧化...
  • source : n 1 源頭,水源,源泉。2 根源,本源;來源。3 原因;出處;原始資料。4 提供消息的人。5 血統。vt 〈美...
  1. Ammonifiers in suzhou creek can not use inorganic nitrogen and carbamide as nitrogen source ; additional carbon source and garbage lixivium have little influence on ammonifiers growth ; high content of salt and low temperature restrain ammonifiers growth ; alkalescent condition has little influence on ammonifiers, but acidic condition restrain ammonifiers growth ; the biomass of ammonifiers are not necessary correlated with the function of ammonifiers, adding glucose with 1g / l content into the water sample obviously promote the growth and function of ammonifiers. physiological groups of bacteria play significant role in the translation and

    蘇州河的氨化菌無法利用無機氮和尿素作為氮源;在營養條件充足時添加額外c源和富含有機物的垃圾浸出液對氨化菌的生長基本無影響;高鹽度和低溫抑制氨化菌生長;堿性條件對氨化菌的生長影響不大,酸性條件對氨化菌生長具有抑制作用;氨化菌生物量的消長與轉氨活性之間不存在必然聯系, 1g / l的葡萄糖對蘇州河水樣中氨化菌的數量和轉氨功能具有明顯的促進作用。
  2. The results of the experiments showed peptone was the best nitrogen source in solid culturate, the second was yeast extract

    結果表明;在固體培養中,病菌對氮源的利用以蛋白腖為最好,其次為酵母膏。
  3. Area was the best inorganic nitrogen source which should maintain at high concentration at earlier part of fermentation because of saccharomycete ' s feature

    尿素是最佳的無機氮源,由於酵母細胞對氮源吸收利用特點,在發酵初期氮源需要保持較高水平。
  4. The biological characteristics of mycelia from phellinus igniarius and culture media were studied. two kinds of culture media were suitable for the growth of mycelia. the result indicated that the culture medium with potato as nitrogen source and saccharose as carbon source was suitable for collecting mycelia, and the culture medium with peptone as nitrogen source and solvable amylum as carbon source was suitable for conservation

    為了最大限度地保存菌種的活力,以提高菌絲體的質量及菌絲體內活性成分的累積,本文通過對比研究,進一步對其生長基質進行篩選,明確了兩種適于桑黃菌絲生長的固體培養基:以馬鈴薯為氮源、蔗糖為碳源的培養基較適用於菌絲收集,以蛋白腖為氮源、可溶性澱粉為碳源的培養基較適用於菌種的保藏。
  5. Used 15 nitrogen sources to select the fittest nitrogen source by solid culturate and liquid culturate

    摘要選用15種常見氮源,應用固體和液體培養方法,篩選適宜番茄灰霉病菌生長的氮源營養物質。
  6. At its liquid fermentation culture process, the most appropriate carbon source is glucose and white sugar, while the most appropriate nitrogen source is ammonium tartrate. the results also indicate that cg grows best between ph value 6. 0 - 8. 0, in which its growth period is about 15 days, and the best inoculating amount and the liquid capacity are respectively 10 - 15 % and 100 - 200ml. all these results will provide the theory bases for the reproducing of cenococcum geophilum

    其液體培養最適碳源為葡萄糖、市售白糖;最適氮源為酒石酸銨。在ph值為6 . 0 - 8 . 0之間生長最快,其生長周期為15d左右,最佳接種量和裝液量分別為10 - 15 %和100 - 150ml 。以上試驗結果為土生空團菌的擴大繁殖提供了理論依據。
  7. The paper adopted the common breeding way by series of mutagen treating to the yeast ' s cell and spheroplast. finally, the excellent mutant 75l 3555 was obtained. its nature of the production was determined and it can product ethanol on the condition of 40 and have high fermentative speed and stable production. on the other hand, the test was made that the best fermentative condition was found. in the malt juice, adding 0. 02 % k + or 0. 03 % a13 + can increase the production strikingly and adding some degree concentration trahalose can increase the production too and cut short the time of taming. in the study of using molasses producting ethanol, we can obtain high productivity contained the following composition : nitrogen source 1. 5 % maize and 0. 075 % ( nh4 ) 2so4

    本實驗以常規的育種方法,通過對酵母細胞懸液和原生質體進行一系列誘變,經過大量的篩選,最終選育出一株耐高溫高產菌株75l _ ( 3566 ) ,並對其進行了生產性能的測定。 75l _ ( 3566 )在40條件下,濃度為20 bx的麥芽汁發酵液中,產酒率高達11 . 5 ,而且發酵速度快,發酵周期可縮短12h ,其生產性能穩定,可以適應大部分以澱粉質為原料的生產廠家的需要。同時本實驗對75l _ ( 3566 )進行了發酵條件優化的初步研究。
  8. Results : the production of c. neoformans melanin was affected by various factors, in which nitrogen source and glucose affected it obviously

    結果:新生隱球菌黑色素的產生受多種因素的影響,其中以氮源、葡萄糖和溫度的影響最為明顯。
  9. By studying the growth speed on its culture media and the growth pattern, we selected the most appropriate one as the culture media for cg and detailed in the selection experiments of ph value, carbon and nitrogen source, the growth period, inoculating amount and the capacity of oxygen accommodation

    通過對其在培養基上生長速度、生物量及生長規律的研究,篩選出最佳培養基作為基礎培養基,進行ph值試驗,碳、氮源試驗、生長周期以及接種量和溶氧量試驗。
  10. Edx analysis was carried out to obtain additional information about the elemental composition. it revealed an average n content of 19at. % in the samples when c2h8n2 was selected as the nitrogen source, which was obviously higher than that when nrtcl was used ( 1 % )

    X -射線能量色散譜儀( edx )對980下制備的樣品進行了定量分析,其平均含氮量為19at . ,明顯高於以氯化銨為氮源時cn _ x納米管的含氮量( 1 ) 。
  11. The co2 and aqueous gas phase ammonia create a solid fertilizer deep inside the porous charcoal, allowing traditional coating technologies to produce a slow controlled release nitrogen source

    二氧化碳和氣態含水氨製造一種在多孔木炭深深內部的固體肥料,從而讓傳統的外層覆蓋技術產生一種緩慢釋放氮資源的機制。
  12. ( 3 ) orange pigment could be oxidized with hydrogen peroxide to yellow pigment. concentration of h2o2 was proportional to creation of yellow pigment. the quantity of orange pigment was influenced by the nitrogen source of the culture medium

    ( 3 )對橙色素進行了初步研究,橙色素可以氧化為黃色素,且氧化劑的濃度越大,黃色素生成率越高;氮源是影響橙色素產量的一個主要因素,以nh _ 4cl為氮源,確定其最適添加量為0 . 01 。
  13. The best condition for extracting polysaccharide from porphyridium cruentum were as follow : alcohol concentration was 50 %, alcohol volume was 1 - fold time, percolation time was 0. 5h, the volume ratio of glycoprotein solution to sevag reagent was 2 : 1, time was 45min and sevag reagent was 4 : 1 between chloroform and butanol. the result also indicate that sodium acetate anhydrous and nh4cl were the best carbonic and nitrogen source for polysa

    血色紫球藻的最優提取工藝為乙醇濃度50 % ,乙醇用量為1倍體積,醇沉時間為0 . 5小時;氯仿與正丁醇的比例4 : 1 ,樣液與sevag試劑的比例2 : 1 ,作用時間為45min ;五種碳源的影響差異不顯著,氮源的影響差異顯著,其中添加無水乙酸鈉和nh4ci的培養基多糖產率最高,分別為33 . 784mg / l和40 . 997mg / l 。
  14. Yeast extract wbs the best nitrogen source in liquid culturate, the second was ( nh4 ) 2so4

    在液體培養中,病菌對氮源的利用以酵母膏為最好,其次為( nh4 ) 2so4 。
  15. Most of the common nitrogen source could be used by cds - 1 except nano2 & carbamide, but organic nitrogen source was better than inorganic nitrogen source in supporting the growth of cds - 1

    該菌可以利用多種常用的氮源物質,但是不能利用nano _ 2與尿素;對有機氮的利用要明顯優于無機氮。
  16. On the basis of this work, the cnx nanotubes with " nested - cone " shape have been produced by thermal decomposition at 780 - 980 with nhb released from nh4cl as nitrogen source

    在此實驗基礎上選用氯化銨釋放出的氨氣為氮源,制備出了「錐形嵌套"結構的cn _ x納米管。
  17. Map can be used by the strain as sole carbon source, nitrogen source and energy source. and it could degrade parathion and dichlorvos effectively as well

    研究表明,該菌株能有效降解甲胺磷,同時對敵敵畏、對硫磷也有降解效果。
  18. Uniform design was employed to optimize the culture conditions and the component of culture medium including carbon source, nitrogen source, phosphor source, growth factors, inorganic salts and precusor as well

    利用均勻設計原理進行實驗設計,以優化培養基中碳源、氮源、磷源、生長因子、前體物及無機鹽成份的配方以及細菌培養條件。
  19. Layered carbon nanotube with special length could be synthesized with this method. cnx nanotube and bcn nanotube were obtained with ethylenediamine as nitrogen source, and the growth parameters were screened at the same time. we found that the value of id / ig, id * / ig and fwmh of three bands could be used to estimate the degree of disorder

    無序多壁碳納米管的研究:在以二甲苯為碳源,以ar (或n _ 2 )和h _ 2為保護氣體,採用單級加熱的方法制備碳納米管的基礎上,著重優化了熱解法制備碳納米管時的工藝參數。
  20. First, the factors which had an influence on the liquid - state tunning of m12 - 69 producing monaclin k were studied, including carbon source, nitrogen source, initial ph value, culture temperature and time

    首先,研究了碳源、氮源、起始ph值、培養溫度及時間等因素對m12一69液態發酵的影響。
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