酮醇 的英文怎麼說
中文拼音 [tóngchún]
酮醇
英文
acyloin-
Standard test method for acetone in methanol
甲醇中丙酮含量的標準試驗方法Analytical condition were as follows, column : 10 % modified polyethylene glycol 20m on acid washed 201, 2m column with 3 mm i. d., fid as detector, phe - nylmethyl ketone as internal standard compound
以10 %改性聚乙二醇20m為固定液,苯乙酮為內標物,氫火焰離子化檢測器,內標法定量分析異辛酸。The principal adrenocortical products are aldosterone, cortisol and dehydroepiandrosterone sulphate.
腎上腺皮質的主要產物為醛固酮、皮質醇和脫氫異雄酮硫酸鹽。It is white crystal powder, odorless and slightly bitter ; hardly soluble in ethanol, chloroform, aether and benzene and soluble in solutions whose ph value is less or more than 7
本品在水中易溶,在乙醇、丙酮、氯仿或乙醚中幾乎不溶。本品為兩性化合物,能溶於酸性溶液或堿性溶液。( 2 ) in ( no3 ) 3 was dissolved in acetylacetone in the mol ratio of l : 3. they were mixed for about 3 hours to obtain acetylacetone salts. then glycol methyl aether was added in the ratio of 1 : 40 to obtain indium oxide sol. sncl4 was dissolved in glycol methyl aether and then added into the indium oxide sol to prepare transparent and stable ito sol
( 2 )通過將銦的無機鹽硝酸銦與乙酰丙酮按摩爾比1 : 3 ,混合攪拌3h左右得到銦的乙酰丙酮鹽,然後按一定摩爾比加入乙二醇獨甲醚溶液,混合攪拌制得氧化銦溶膠,再將一定量的sncl _ 4溶入乙二醇獨甲醚,摻入氧化銦溶膠制得透明穩定的摻錫氧化銦溶膠( ito溶膠) ,該溶膠性能穩定,易於成膜。Transketolase is the key enzyme of pentose - phophate pathway, catalyses transfer of a two - carbon fragment from a ketolase ( donor substance ) to an aldose ( acceptor substance )
摘要轉酮醇酶是磷酸戊糖途徑的關鍵酶,催化二碳單元在酮糖(供體)和醛糖(受體)間的轉移。Eighteen compounds in the oil were identified by g c / ms. they are : seven ketone compounds : 2 - undecanone, 6, 10 - dimethy, 1 - cyclohexanol - l - butanone, 2, 5 - hexanedione, 2 ( 4h ) - benzofuranone, 5, 6, 7, 7, a - tetrahydro - 4, 4, 7a - trimethyl, 3 - buten - 2 - one, 4 - ( 2, 6, 6 - trimethyl - 1 - cyclohex en - 1 - yl ) -, ( e ), 6 - dodecanone, 3 - buten - 2 - one, 4 - ( 2, 6, 6 - trimethyl - 7 - oxabicycl o4. 1. 0hept - l - yl ) ; three alcoholic compounds : a - terpineol. benzyl alcoho 1, phytol ; two alkyl and acyl amine components : undecane, tetradecane and hydrazinecarboxamide, n, n - diphenyl -, acetamidobenzene ; one ester, a idehyde, alkyne and acid : butanoic acid : 2 - propenyl ester, 1 - octadecyne, 1 - octadecyne, palmitic acid
三甲基一7一氧雙環p , l , 0庚烷基什丁烯酮上;醇3種:苯甲醇、 a松油醇、 3 , 7 , 11 , 15十六烯2醇1 ;烷2種:十一烷、十四烷;酚胺2種:姘基甲酚h苯胺、乙酞苯胺;酯、醛、炔、和酸備是1種:丁酸烯丙酯、十八碳醛、十八炔、十六碳酸。Testosterone is an androgen or male steroid hormone.
睪丸甾酮是一種雄性激素或雄性類固醇激素。The enzyme 5 - enolpyuvyl - 3 - phosphoshikimic acid synthase ( epsp synthase ; ec2. 5. 1. 19 ), encoded by anoa locus, is a key enzyme present in microorganisms and plants where it has a function in the biosynthesis of aromatic amino acids. glyphosate ( n - phosphonomethyl - glycine ) is an effective non - selective, broad spectrum, postemergence herbicide, which has been shown to inhibit epsp synthase activity in a competitive manner. glyphosate tolerant plants can be mediated by either overproduction of the target enzyme or by the presence of an altered enzyme
植物和微生物芳香族氨基酸生物合成過程中的一個關鍵酶? ? 5 -烯醇丙酮莽草酸- 3 -磷酸合成酶( epspsynthase ; ec2 . 5 . 1 . 19 )由aroa基因編碼,該酶受廣譜滅生性、內吸傳導型除草劑草甘膦的競爭性抑制,將epsp合成酶基因轉入植物中可獲得草甘膦耐受植株。Two kinds of flavonoids in water extracts, water - extraction and alcohol precipitation, alcohol extracts were found by paper chromatography. they were separated and purified by thin - layer chromatography, one of which was primarily identified by uv as 4 ", 5 - dihydroxy - flavonol etherification or 4 ", 5, 8 - trihydroxy - flavonol etherification
水提物、水提醇沉物、醇提物等3種提取物紙層析結果顯示有兩種黃酮類化合物,經薄層層析分離純化,並進行紫外光譜分析,初步測定其中一組分為4 , 5 -二羥基黃酮醇醚或4 , 5 , 8 -三羥基黃酮醇醚。It was suggested that the gene t13m11. 8 could be the ast candidate gene. this gene was 1432bp long with 6 exons and 5 introns. the putative protein of t13m11. 8 gene was highly homologous to dihydroflavonol 4 - reductase ( dfr ), which was an important enzyme in the anthocyanin biosynthesis pathway
該基因的dna序列長1432bp ,含有6個外顯子和5個內含子,編碼的蛋白與花青苷生物合成途徑中的二氫黃酮醇4 -還原酶有較高的同源性。Tea ( camellia sinensis ) is one of the most common beverages consumed worldwide. tps ( tea pplyphonels ) are most abundant in green tea and they are mostly in the form of flavanols commonly known as catechins which include ( - ) - epicatechm ( ec ), ( - ) - epicatecbjn - 3 - gallate ( ecg ), ( - ) - epigallocatechin ( ecg ), ( - ) - epi gallocatechin - 3 - gallate ( egcg )
茶多酚( teapolyphonels , tps )是以茶葉為原料提取出來的一類多酚類化合物,除含有酚酸、黃酮、黃酮醇和花色素外,其主要成份是茶兒茶素(黃烷醇類) ,約佔tps的60 - 80 。Green tea contains a number of flavonols with the basic structure specific flavonols found in tea include myricetin ( hydroxyls at carbon 3 ', 4 ', and 5 ' ), quercetin ( hydroxyls at positions 3 ' and 4 ' ), and kaempferol ( hydroxyl at position 4 ' ), and their glycosides
綠茶含有一些黃酮醇,其基本化學結構為:茶中特有的黃酮醇有楊梅黃酮( 3 ' 、 4 ' 、 5 '碳位上羥基化) 、豕草花粉苷( 3 '和4 '碳位上羥基化) ,莰非醇( 4 '碳位上羥基化) ,以及它們的糖苷物。Thirty years ago, german scientists discovered that flavonoids contained in the ginkgo are extremely effective in delaying atherosclerosis, making ginkgo - based health foods very popular
德國科學家在三十年前發現銀杏所含的黃酮醇( flavonoids )對延緩血管硬化極有效,銀杏葉制的健康食品遂大受歡迎。Flavonols are common in but are found in highest concentrations in onions, apples, berries, kale and broccoli
黃酮醇是植物類食物中的常見物質,在洋蔥蘋果漿果羽衣甘藍和西蘭花中含量最高。Flavonols are common in plant - based foods but are found in highest concentrations in onions, apples, berries, kale and broccoli
黃酮醇是植物類食物中的常見物質,在洋蔥蘋果漿果羽衣甘藍和西蘭花中含量最高。The study found that people who ate the largest amounts of flavonols had a 23 percent reduced risk of developing pancreatic cancer compared to those who ate the least
研究發現,攝入黃酮醇最多的人比攝入黃酮醇最少的人患胰腺癌的幾率低23 % 。A second study of food consumption in more than 183, 000 residents of california and hawaii found that a diet high in flavonols might help reduce pancreatic cancer risk, especially in smokers
另一項對18萬3000多名加利福尼亞和夏威夷居民的飲食調查發現,吃黃酮醇含量高的食物可能會降低胰腺癌的發病率,尤其是對于吸煙的人。Diacetone alcohol for industrial use. methods of test
工業用雙丙酮醇.試驗方法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。分享友人