雪莲化学成分为:生物碱、黄酮、甾醇、挥发油、16种氨基酸、雪莲内酯等。
The Saussurea involucrata chemical composition was: alkaloid, flavanone, sterol, volatile oil, 16 kind of amino acids, Saussurea involucrata lactone and so on.
很多不同种类的挥发性化合物有着非常有趣的名字,像橡胶基质、单萜、叶绿素、诱导植物产生的挥发性次生物质等等。
There are many different types of volatile compounds with exotic names such as isoprenes, monoterpenes, green leaf volatiles, herbivore-induced volatiles, and others.
研究人员得出一下结论,细菌是有味觉的——生物学上的定义即为对于来自于远距离的挥发性化学物质的探测能力——他们并假设味觉是首先在细菌中进化产生的。
The researchers concluded that bacteria are capable of olfaction—the biological detection of volatile chemicals across a distance—and hypothesize that this sense may have first evolved in bacteria.
天然植物油具有粘度指数高、无毒、具有极好的生物降解性、低挥发性、良好的润滑性,且属于可再生资源。
Natural plants oil has higher viscosity index, no poison, excellent bio-degrade ability, low volatility, better lubricity, and most important, it is a renewable resource.
结果:在川续断属植物中发现了三萜类、环稀醚萜类、生物碱、酚酸类、黄酮类和挥发油类化合物。
Results: the chemical constituents including triterpenoid iridoid alkaloids phenolic acids flavonoids and volatile oil were found in the plants of Dipsacus l.
通过在层流炉上进行的多种生物质闪速热解挥发实验,并利用灰分示踪法计算得到了挥发百分比实验数据。
Based on experiments of various biomass flash pyrolysis volatilization performed with a laminar entrained flow reactor, the model was checked by experimental data acquired with ash tracer method.
纤维素生物油产量在峰值上最高,但纤维素生物油热稳定性差,高温时挥发分的二次分解最明显;
The bio-oil yield from cellulose is the highest of the three fractions, but it is lest stable.
微生物的作用可以使土壤中砷转化为气态砷化物而挥发到大气中。
Arsenic can be transformed into volatilizable arsenic by microorganism in the soil and transferred to atmosphere.
目的探讨挥发性有机化合物的吸入对鼻灌洗液中生物标志物的影响,并评价鼻灌洗方法的可行性。
Objective To study the effects of volatile organic compounds(VOCs)inhalation on the inflammation biomarkers in nasal lavage fluid(NAL), and to assess the practicability of the nasal lavage methods.
用生物菌技术将鸡粪除臭,杀死其中的蛔虫卵,并腐熟有机质,降解重金属使其挥发。
Poultry dung is deodorized by a biological bacterium technology to kill the ascarid eggs in the poultry dung, decompose organic matters, and degrade heavy metals to volatilize.
结果表明:刺山柑花蕾中含有挥发油、氨基酸、蛋白质、糖及其苷类、酚性成分和鞣质、生物碱、有机酸、皂苷、甾体类等物质。
It showed that the flower buds contain essential oils, amino acid, protein, carbohydrates and their glycosides, phenols, tannins, alkaloids, organic acids, saponins and steroids.
主要从挥发、 吸附与解吸、 渗滤三个方面介绍了二氯苯在土壤中的迁移行为以及生物降解过程。
Volatilization, sorption-desorption, Leaching and biodegradation of dichlorobenzenes in the soil are reviewed in this paper.
茶树也有可能在外在物理或化学因素的诱导下强化挥发物糖苷的生物合成和积累。
The physical and chemical factors of surrounding stress will probably induce biosynthesis and accumulation of glycosidic aroma precursors.
结果表明:不同提取方法所得到的挥发油在化学成分和生物活性方面存在差异。
The results showed that:For different extracted methods, the chemical composition and biological activity are quite different.
并就茶梢挥发物及其单组分进行了对假眼小绿叶蝉天敌蜘蛛优势种之一-白斑猎蛛的生物活性鉴定。
Meanwhile, the bioassay on tea shoots volatiles and their single components to the predatory spider of Empoasca vitis --Evarcha albaria was conducted.
菲的微生物降解、挥发易于芘。
Microbial degradation and volatilization of phenanthrene are easier than pyrene.
土壤中菲和芘都是以微生物降解为主,其次是挥发、化学降解等非生物降解方式。
Phenanthrene and pyrene in soil are based on microbial degradation, followed by abiotic degradation such as volatilization, chemical degradation.
介绍了近年来国内外挥发性有机废气治理技术的现状,如吸附技术、催化燃烧技术、生物技术等。
The research progress and application of adsorption, catalytic combustion and biodegradation for VOCs removal in recent years are reviewed, and the development trend of VOCs treatment is discussed.
淀粉能够完全转化为挥发性有机酸、微生物污泥、生物气;
All starch in the influent can be converted to short chain fatty acids , biomass and biogas in the TUASB reactor.
生物质燃烧过程主要集中在燃烧前期的挥发分燃烧阶段,煤燃烧过程主要集中在燃烧后期的固定碳燃烧阶段。
Biomass combustion process is mainly concentrated on the burning of volatile combustion in the early stage, while coal combustion process focused on the burning of fixed carbon in the later stage.
同时采用挥发性盐基氮和微生物菌落总数检测实验进行对比分析。
Total volatile basic nitrogen and aerobic bacterial count of the sample were measured simultaneously as the standard indicators of pork freshness.
摘要本研究旨在探讨饲粮中添加酵母壁多糖对断奶仔猪肠道挥发性脂肪酸和微生物菌群的影响。
Abstract: an experiment was conducted to determine the effects of yeast cell wall polysaccharides on intestinal volatile fatty acids and microbial flora of weaned piglets.
结果萃取物中挥发性成分较复杂,主要有芳香族、长链烷烃、生物碱类、香豆素和酯类等化合物。
RESULTS Volatile components from EtOAc extract were complex, mainly in aromatic, long-chain alkanes, alkaloids , coumarin and ester compounds.
植物能够释放以其挥发性次生物质构成的气味进行信息传递,起到引诱授粉者、植食者天敌,警告附近同类有病虫侵袭等作用。
Plant can release secondary compounds for information transfer, who played such as the role of duce pollination and natural enemies of plant eaters as well as warned of similar attacks have pests.
天然气(5%),绘画(5%),柴油车(3%),和生物排放(2%)的挥发性有机化合物的排放量,同时还确定了。
VOC emissions from natural gas (5%), painting (5%), diesel vehicles (3%), and biogenic emissions (2%) were also identified.
天然气(5%),绘画(5%),柴油车(3%),和生物排放(2%)的挥发性有机化合物的排放量,同时还确定了。
VOC emissions from natural gas (5%), painting (5%), diesel vehicles (3%), and biogenic emissions (2%) were also identified.
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