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- diacetyl guanine 二乙酰鸟嘌呤
- Guanine and cytosine were more sensitive to HMME. 腺嘌呤和胞嘧啶对血卟啉单甲醚的光动力学损伤更敏感。
- Diacetyl is an important matter affecting the flavor of beer . 双乙酰是影响啤酒风味的重要物质。
- There are just four kinds: adenine, thymine, guanine and cytosine. 只有4种：腺嘌呤、胸腺嘧啶、鸟嘌呤和胞核嘧啶。
- It is a layer of guanine crystals which glow at night. 这是的氨基羟尿环水晶层数发光在晚上。
- Researchers at Purdue University used synthetic forms of guanine and cytosine. 美国普渡大学的研究人员使用的是合成的鸟嘌呤与胞嘧啶。
- Diacetyl is one of the important indices in beer quality management. 双乙酰是啤酒品质管理的重要指标之一。
- Diacetyl is also an important effect substance on the flavour of beer. 双乙酰也是影响啤酒风味的重要原因之一。
- The most abundant bases are cytosine, thiamine, and uracil (pyrimidines) and adenine and guanine (purines). 最丰富的碱基是胞嘧啶，胸腺嘧啶，尿嘧啶，腺嘌呤和鸟嘌呤。
- The hydrosulfite in beer would cause deviation of the determination of diacetyl content in beer by EBC method. 使用邻苯二胺(EBC法)测定啤酒中双乙酰含量时,啤酒中存在的亚硫酸氢盐会影响测定结果的准确性。
- An adenine on one chain is always matched with a thymine* on the other chain, and a guanine with a cytosine. 在一个链上一个腺嘌呤分子总是与另一个链上的一个胸腺嘧啶相匹配，而一个鸟嘌呤总是与一个胞核嘧啶分子相匹配。
- We study the affection for the EBC method determination of diacetyl in beer of all kinds of coefficiant of variation and obtain valuable results. 研究各种操作条件对EBC分析法测定啤酒中双乙酰的影响，得到了较有价值的结果。
- Diacetyl(DA) is one of the most common off-flavors in beer fermentation, affects the quality of beer. 双乙酰(diacetyl)是啤酒发酵中的不良风味物质,产生令人不愉快的反应,可以缩短啤酒熟化周期,提高生产效率,对啤酒工业来说极有经济价值。
- In DNA, four different bases are found. Two of these, adenine and guanine, are double-ring structures called purines. 在dna中，有四种不同的碱基，其中的两个为腺嘌呤和鸟嘌呤，即称为嘌呤的双环结构。
- Ethyl nitrite and 2-butanone are condensed to give diacetyl monooxime,which canbe hydrolysed to form diacetyl. 本文用亚硝酸乙酯与2-丁酮缩合制备双乙酰-肟。
- One of the purines(adenine and guanine) or pyrimidines(cystosine, thymine, and uracil) that occurs attached to the sugar component of DNA or RNA. 碱基嘌呤（腺嘌呤和鸟嘌呤）或嘧啶（胸嘧啶、胸腺嘧啶和尿嘧啶）的一种，附着在脱氧核糖核酸或核糖核酸的糖分子上
- Main fermentation time including diacetyl reduction lasts 3-5 days and storage time 1-3 weeks. 主发酵时间3-5天（包括双乙酰还原），后熟时间1-3周。
- A synthetic purine nucleoside analog, C8H10N5O3, derived from guanine and used topically in the treatment of herpes simplex infections, especially such infections of the genitals. 合成嘌呤核苷类似物一种合成嘌呤核苷类似物，化学式为C8H10N5O3，来源于鸟嘌呤，部分用于疱疹单一性感染的治疗，尤指用于对生殖器感染的治疗
- A rapid and reliable analytical method for the detection of diacetyl and other vicinal Diketones in beer was described. 该文介绍了一种快捷、可靠的测定啤酒中双乙酰含量的分析法。
- Guanine A nitrogenous base found in DNA and RNA.Guanine has a pruine ring structure. 鸟嘌呤：是存在于DNA与RNA中的一种含氮碱基，具有一个嘌呤环结构。
