黃酮醇 的英文怎麼說

中文拼音 [huángtóngchún]
黃酮醇 英文
flavonol
  • 黃 : Ⅰ形容詞（像絲瓜花或向日葵花的顏色） yellow Ⅱ名詞1 （指黃河）short for the huanghe river:黃泛區the...
  • 酮 : 名詞[化學] （有機化合物的一類） ketone; alkone; ket-; -one
  • 醇 : Ⅰ名詞1 [書面語] （含酒精多的酒） mellow wine; good wine2 [化學] （有機化合物的一大類 含羥基的烴化...
  1. Abstract : the total quantity of perylene quinonoids in hypocrella bambusae ( b. et br. ) sacc., shiraia bambusicola p. henn and culture substance of ascomycetes hypocreacae ( fr ) tul. sp. were determined with spectrophotometric methods. the relative extraction efficiency were studied when ethanol, acetone and chloroform were used as solvents. among them acetone was the best one

    文摘:用分光光度法測定了竹紅菌、竹黃和菌寄生菌培養物中?醌類化合物的總量；同時研究了以無水乙醇、丙酮和氯仿為溶劑提取?醌類化合物的相對效率，結果發現以丙酮為溶劑最合適。
  2. A white solid that is in organic solvents such as ethanol and acetone and the like, easy to be deliquescent : its solution is colorless transparent liquid, primarily utilized as fungicides additives to prevent the growth of microbe and algae

    0 . 01物化性質：無色或微帶黃色結晶或結晶興粉末，具吸濕性，易溶於水乙醇甲醇和丙酮，熱至160以上分解。
  3. Results the extraction conditions were optimized as follows : folium ginkgo and rhizoma chuanxiong were powdered and soaked by fifteenfold - weight 60 % alcohol, to get the highest content of flavone and ligustrazine

    結果：銀杏葉、川芎粉碎成粗粉，用15倍量60 %的乙醇漉條件最佳，總黃酮和川芎嗪的含量最高。
  4. 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。
  5. All the sex hormones, e. g. estrogens, progesterone, and testosterone, are steroids.

    所有的性激素，例如雌激素，黃體酮和睪酮都是類固醇。
  6. 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。
  7. 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 。
  8. In order to study the influence factors of aoa of rose flowers, the effects of drying and extraction methods on the aoa of rose flowers were investigated. the results indicated that drying after high - temperature short - time pretreatment was rather effective to maintain their aoa ; the aoa of water extracts was stronger when the temperature was raised from 25 to 100 ; by using orthogonal test, the optimum extraction conditions of rose flowers were : solvent - 75 % ethanol ; ratio of material and solven - 1 : 10 ; extraction times - three times with 24 h at one time, at the room temperature. the extracts obtained by 75 % ethanol were fractionatedly extracted with petroleum, diethyl ether, ethyl acetate and n - butanol in turn, and the various fractions " aoa were analyzed

    為了探討玫瑰花抗氧化活性的影響因子，比較了不同乾燥方法、提取方法對其抗氧化活性的影響，發現：經短時高溫處理后再進行乾燥有利於較好地保持玫瑰花的抗氧化活性；以水作溶劑提取時， 25 100范圍內水提液的抗氧化活性隨著溫度的升高而增強；通過正交實驗篩選得到常溫下玫瑰花抗氧化活性物質的最佳提取方法為： 75乙醇為溶劑，液料比1 ： 10 ，提取3次，每次24h ； 75乙醇提取物依次用石油醚、乙醚、乙酸乙酯、正丁醇等有機溶劑進行兩相分部萃取，發現玫瑰花的抗氧化活性物質主要存在於乙酸乙酯部，說明玫瑰花抗氧化活性主要成分可能是單寧類、黃酮苷類和原花色素類化合物； 4
  9. The results showed that the n - butanol and chloroform fractions had a stronger inhibitory activity to fungal growth and the n - butanol fraction had a stronger inhibitory activity to the bacteria, so that it was surmised that alkaloids in sophora alopecuroides were the major ant - fungal component, and flavonoid glycosides and triterpene glycosides in the n - butanol fraction had both anti - bacterial and anti - fungal activities

    結果表明，正丁醇萃取部分和氯仿萃取部分對真菌生長有較強的抑制活性，正丁醇萃取部分對細菌亦有較強的抑制活性，推測苦豆子中的生物堿是主要的抗真菌成分，存在於正丁醇萃取部分的黃酮和三萜類配糖體等成分同時具有抗真菌和抗細菌活性。
  10. 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。
  11. 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。
  12. 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。
  13. 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。
  14. After the acet is vaporized, the active substance in water is gotten. and which is vaporized at low temperature. then the crude active substance is purified by column chromatography on sephadex g - 75. after a series of purifications again, we could get some white powder at last. though the active substance is diluted to50 g / ml, the activity is still checkeded - up through phyto phtnora casicileon. the purified active substance is insensitive to heat, resistant to chloroform 、 ethanol and the orhers. in addition, the active substance is sensitive to high ph ( 10 ~ 14 ), but it is not sensitive to low ph ( 1 ~ 5 ). furthermre, when the ph is made to low again, the activity of it ' s comes back

    用蒸餾水對菌體稀釋；加入適量吸附樹脂在150rpm 、 28下振蕩吸附4h ， 80 %的丙酮解吸，過濾解吸液得到活性物質的澄清溶液，旋轉蒸發儀旋轉蒸發去處丙酮，經sephadexg - 75分子篩層析得單一活性峰，收集峰值部分樣品液經冷凍乾燥得到淡褐色粉末，該活性物質用丙酮充分洗滌、甲醇-乙醚重結晶獲得略帶微黃的白色粉末，該活性物質50 g / ml仍可對蘇雲金芽孢桿菌hd - 1產生明顯的抑制作用。
  15. Three are natural hormones - - estradiol, progesterone and testosterone - - and three are synthetic hormones - - zeranol ( an estrogen ), trenbolone acetate ( a steroid with androgen effects ) and melengestrol acetate ( a progestin ), the study authors said

    三種是天然激素雌二醇，孕酮和睪酮，三種是合成激素折侖諾（一種雌激素） ，醋酸去甲雄三烯醇酮（一種有雄激素作用的類固醇）和醋酸美侖孕酮（一種黃體酮） ，研究人員說。
  16. 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 % 。
  17. 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。
  18. Physical and chemical characteristic : colorless transparent liquid, especial smell. easy dissolve in alcohol, ether, acetone, etc. not dissolve in water

    本品為無色至淡黃色油狀透明液體，具有特殊的氣味。不溶於水，易溶於醇、醚、丙酮等有機溶劑。
  19. Extraction of total flavones from rhodiola sachaiinensis by cellulase and ethanol solution

    乙醇協同提取紅景天總黃酮
  20. Extraction of flavones from scutellaria baicalensis georgi with ethanol under room temperature

    乙醇室溫浸提法提取黃芩總黃酮的工藝條件
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