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- The results show that acetone extracts and concentrated water extracts of all the above green teas markedly inhibit the mutagenicity of AFB1 and B(a)P. 结果表明,绿茶丙酮提取物和水浸浓缩液对黄曲霉毒素B_1(AFB_1)和苯并(a)芘(B(a)P)两种间接致突变剂有显著抑制作用,抑制率达到89%25以上。
- The bioactivities of acetone extracts of cultures against Pieris rapae and its natural enemy Apanteles glomeratus were also studied. 利用离体培养技术以生物合成的途径生产鱼藤酮具有独特的优势和意义。
- Abstract: KLT, an acetone extract of the coix seed (Coicis Semen Yokuinin), is approved in the Peoples Republic of China (PRC) for treatment of lung and hepatic cancers. 摘要：康莱特是薏苡芢提取物，中华人民共和国已经批准用作肺癌和肝癌的治疗。
- The result showed that the antioxidant activities were in the order:70% acetone extract > 70% ethanol extract > 70% methanol extract. It was correspond with the contents of total phenolics and proanthocyanidins in different extracts. 结果表明,不同提取物在三个体系中都具有较强的抗氧化性质,抗氧化能力的大小顺序为:70%25丙酮提取物>70%25乙醇提取物>70%25甲醇提取物,并且抗氧化能力的大小与提取物中总酚和原花青素的含量高低相一致。
- The chloroform extract and the acetone extract from Euphorbiae had trmor inhibition effect on K562,HepG_2 and U937 cell line. Besides,they showed obvious therapeutic efficacy in EAC and S180 in vivo. 千金子的氯仿、丙酮段提取物对 K562,HepG_2和 U937细胞株具有抑瘤作用,对在体的 EAC、S180呈现出明显疗效;
- The toxicity of acetone extract from Eugenia caryophyllata Thunb and its effects on several esterases of Tetranychus piercei McGregor were studied by leaf immersion and ultraviolet spectrophotometry. 采用叶片浸渍法和分光光度法研究了大叶丁香(Eugenia caryophyllata Thunb)丙酮提取物对皮氏叶螨(Tetranychus piercei McGrvgor)的毒力及其代谢酶活性的影响。
- An insecticidal component, 1B-4 was isolated from the acetone extract of the mycelium of IB strain by bioassay-guided. The molecule structure of 1B-4 was determined by IR and NMR as a kind of fatty acid. 在活性追踪指引下，采用Pre-TLC技术，从IB菌株菌丝体的丙酮粗提物中分离到1个杀虫活性物质1B-4，采用红外光谱和核磁共振波谱技术初步鉴定为一类羟基取代的长链脂肪酸类化合物，可能为两个异构体的混合物。
- There were plenty of auxochromic groups and chromophoric groups in the acetone extractives of silver chain. [结论]羟基、羧基等助色基团在预处理条件下氧化成羰基、酯基等发色基团,使木材的颜色加深;
- They concluded that ozone attack on natural rubber was extensive and complex and could be related to the acetone extractables. 他得出结论，认为臭氧对合成橡胶的侵蚀是广泛的复杂的，可以和丙酮的可提取性联系起来。
- Antibacterial peptides were extracted from healthy Japanese flounder (Paralichthys olivaceus) tissues including skins, gills, liver, kidney by methanol and acetone extraction. 摘要以新鲜的牙鲆为试验材料，用100%25丙酮和90%25甲醇配制的提取液，从牙鲆的鳃、皮肤、肝、肾组织中提取抗菌肽，并对牙鲆抗菌肽粗提物进行部分性质检测。
- Acetone extractives in masson pine (Pinus massoniana lamb)groundwood pulp were isolated and analyzed through the employment of DEAE-Sephadex ion exchange chromatography and GC/MS. 利用DEAE－Sephadex离子交换色谱和气相色谱－质谱联用技术，对马尾松磨木浆丙酮抽出物的化学成分进行了分离及分析。
- She read me a few extracts from her own new novel. 她把她自己的新小说念了几段给我听。
- Acetone extract from stellera chamaejasme(AESC) 瑞香狼毒丙酮提取物（AESC）
- The result shows that the antioxidation activities of the flavonoids extracted by three methods range as the following order: aceton extraction > ethanol extraction > water extraction. 结果表明,60%25丙酮提取法提取的黄酮抗氧化活性最强,其次是80%25乙醇提取的黄酮,水提取的黄酮效果最差。
- She read me a few extracts from his letter. 她把他的信念了几段给我听。
- The new process extracts oil from shale. 这一新过程可从页岩里提炼出石油。
- I would like to quote two extracts from the book. 我很想引用这本书的两段文字。
- The Effect of QH Acetone Extracts on Cold-resistance of Rice Seedlings 中草药QH丙酮提取物对水稻幼苗抗寒性的影响
- He read several extracts from the poem. 他读了诗中的几段。
- acetone extraction from pomegranate 石榴籽丙酮提取液
