植烷 的英文怎麼說
中文拼音 [zhíwán]
植烷
英文
phytane-
resulted from the bacterial decay of cellulose in vegetable matter under water.
水下植物體中的纖維素經細菌作用也產生甲烷。Long chain alkyl benzenes is the product of cyclization - decarboxylation - aromatization of fatty acid, with the help of clay minerals catalytic effect, which comes from bacteria, seaseed and higher plant lipid ; or the reaction product of monocylic aromatics and fatty acid alkyl group under the same conditions
長鏈烷基苯主要是細菌、藻類和高等植物類脂化合物中脂肪酸在粘土礦物催化下發生環化脫羧再芳構化或單環芳烴與脂肪酸烷基化反應形成的產物。Phytoalexins are low molecular weight chemicals that plants produce and accumulate in response to infection especially of fungal origin. sakuranetin is a kind of flavanone phytoalexin isolated from ultraviolet - irradiated rice leaves. recent research work on flavanone phytoalexins represented by sakuranetin is reviewed. interesting novel structures, stucture - activity relationships and synthetic methods are discussed
植物抗毒素是植物受到外界病原微生物侵擾后所產生並積累的一類具有抗菌活性的小分子物質,櫻花素是從水稻稻瘟病感染組織中分離鑒定的一種黃烷酮類植物抗毒素.對以櫻花素為代表的水稻抗毒素及其類似物的結構與活性、黃烷酮類植物抗毒素合成方法的研究概況進行了綜述Characteristic : brownish yellow flow powder with characteristic marigold flower odor. well soluble in water, hexane and vegetable oils
性狀:棕黃色流散性粉末,有菊花的特殊氣味。易溶於水、植物油和正己烷。Fifty - one and nineteen compounds were detected respectively from the volatile extracts of the fossils from miocene leaves of metasequoia glyptostroboides and early cretaceous seed cone of pityostrobus spp. by gas chromatography - mass spectrometry ( gc - ms ) analysis
摘要採用氣相色譜質譜聯用分析技術從中新世水杉葉片和白堊紀松型球果兩種裸子植物化石中分別鑒定了51個和19個揮發性成分,類型涉及烷烴、烷烯、烷醇、長鏈脂肪酸及其酯、鄰苯二甲酸酯、菇類和芳香族化合物。Phytosterol and phytostanol have been converted to the corresponding fatty acid esters via lipase - catalysed esterification with fatty acid or transesterification with mythyl esters of fatty acid or triacylglycerols
摘要植物甾醇和植物甾烷醇在脂肪酶催化作用下同脂肪酸酯化或同脂肪酸甲酯或三酰甘油酯交換可形成植物甾醇酯和植物甾烷醇酯。The fungistasis of dichloromethane extracts 7 plants from were tested by growth rate method with the common fungi such as rhizoctonia solani, cladosporium ucumerinum, alternaria solani and fusarium oxysporium
摘要用生長速率法以辣椒絲核病菌、黃瓜黑星病菌、番茄早疫病菌和黃瓜枯萎病菌為供試菌種,對7種植物的12種二氯甲烷提取物進行了抑菌活性測定。Used in making fungicide in pharmaceutical industry. fluorescent agent in textile. neutralizing agent in rubber and ink. can also be used as surfactant, anti - corrosion agent and detergent etc
可用於製造a -吡咯烷酮、 n -甲基吡烷酮、聚乙烯吡烷酮和維生素b1 、環丙胺及丁酸、除草劑、植物生長劑To assess the medicinal value of cultural anisodus tanguticus, the contents of four bioactive tropane alkaloids, anisodine, anisodamine, scopolamine and atropine, in cultural and wild materials were determined by the hplc method. the results showed that content of each alkaloid in the aboveground parts of cultural and wild samples was lower than that in roots, and this explained why it was not the whole plant but the root that was used as medicinal materials. the content of each alkaloid in the roots of one - year cultural material was lower than that in the two - year plants. the discrepancy of the total of four alkaloids between one - year and wild plants is not significant. moreover, the total of four alkaloids, and the contents of anisodine, scopolamine, and atropine in two - year plants were higher than those in wild plant. thus there is medicinal value in the cultivated a. tanguticus as well as wild a. tanguticus, especially in the two - year cultural a. tanguticus
為了評估人工栽培山莨菪的藥用價值,採用高效液相色譜技術對人工栽培和野生山莨菪的地上部分和根中具有生物活性的4種托烷類生物堿:樟柳堿、山莨菪堿、東莨菪堿和阿托品的含量進行了測定.結果表明無論是人工栽培還是野生植物,地上部分中4種生物堿含量均遠低於根,這解釋了人們為什麼用山莨菪的根而不是整株入藥.在栽培植物的根中,一年生山莨菪中各生物堿含量均小於二年生山莨菪,其根中4種生物堿總量與野生根相比差異不是很明顯;二年生山莨菪根中, 4種生物堿總量以及樟柳堿、東莨菪堿和阿托品含量均比野生的高.這說明人工栽培的山莨菪,尤其是二年生山莨菪,同野生山莨菪一樣具有一定的藥用價值Studies on the enzymatic synthesis of phytostyerol and phytostanol esters were described
介紹了植物甾醇酯和植物甾烷醇酯的酶催化合成方法。Animal and vegetable fats and oils - determination of stigmastadienes in vegetable oils - part 1 : method using capillary - column gas chromatography reference method
動植物脂肪和油.植物油中豆甾烷stigmastidenes的測定.第1部分:毛細管柱氣相色譜法For example, previously consumers with high levels of cholesterol might have considered simply eliminating foods high in cholesterol and saturated fats. now, with greater access to information and wider food choices, choosing foods with mainly monounsaturated and polyunsaturated fat content or foods fortified with plant stanols or sterols which actively lower blood cholesterol levels, are just two examples of how consumers can expand, rather than narrow the variety of foods making up their daily diet
比如,以前高膽固醇的消費者只能考慮從食物中剔除高膽固醇和高飽和脂肪酸的部分,現在有了更多的信息和更好的教育,他們可以選擇單不飽和脂肪酸和多不飽和脂肪酸含量較高的食品,或者選擇用植物甾烷醇或甾醇強化的食品,這些食品都能夠降低血膽固醇水平。< uk > resulted from the bacterial decay of cellulose in vegetable matter under water. < / uk >
< uk >水下植物體中的纖維素經細菌作用也產生甲烷。 < / uk >When this precessional wobble brings the northern continents nearest the sun during the summertime, the atmosphere gets a notable boost of methane from its primary natural source ? the decomposition of plant matter in wetlands
當歲差的晃動讓北半球陸地在夏季與太陽距離最近時,大氣中的甲烷會明顯上升;而自然界中甲烷的主要來自於濕地植物的分解作用。Experimental results on butane and butane - plant oil flames indicated that, measurement precision by the multi - wavelength method is strengthened by taking radiation information on multiple wavelength units into consideration, and moreover, the radiation calibration procedure is simplified, in that a halogen light source is used instead of in situ flame radiation. in section 2, fluctuation and averaging analyses are carried out on optical transmission signals by particles passed through laser beams to derive particle size and concentration in measuring area, furthermore, correlation calculations are conducted on two adjacent laser beam signals to obtain flowing velocity of particle
對丁烷氣體火焰及丁烷-植物油混合燃料火焰的測量結果表明,多波長分析方法優于傳統的雙色法,表現在兩個方面:一、由於綜合考慮多個波長單元上的火焰輻射信息,多波長方法的測量精度比雙色法有較大的提高;二、在多波長分析方法中,採用標準鹵素燈進行相對輻射強度標定,簡化了雙色法中的火焰絕對輻射強度的標定。Animal and vegetable fats and oils - determination of unsaponifiable matter - method using hexane extraction
動植物油脂.不皂化物測定.己烷提取法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。Although the melting in itself is a troubling indicator of a warming planet, the bigger concern is invisible : the lakes are emitting huge amounts of methane as ancient plant and animal remains thaw and decompose underground
盡管它們的溶化是全球變暖的標志,但最大的擔憂是一種無形的危險物質:隨著地下遠古動植物解凍並腐壞,這些湖會噴出大量甲烷。All import wood packaging materials should be treated by heat treatment ( ht ) or methyl bromide ( mb ) fumigation at the origin, and put the mark of ippc ( as below ) on two opposite sides of the wooden packaging material
進境貨物使用木質包裝的,應當在輸出國家或者地區政府檢疫主管部門監督下按照國際植物保護公約進行熱處理( ht )或溴甲烷熏蒸( mb ) ,並在木質包裝的兩側加施ippc專用標識。分享友人