【正文】 s Day! in shops, hotels and restaurants. But few young women will mark the festival with their boyfriends, or take part in traditional activities to pray for cleverness. A largescale of exhibition on the Silk Road opened to the public in the National Museum on Thursday. The exhibition displays more than 400 treasures from Shaanxi province, Gansu province and 14 other regions. It is largest scale exhibition that shows the history of the Silk Road in recent years. AsShutterbugs flock to see for themselves the marvel of splendid colors around the mountains and waters, many of whom have travel a long distance and even camp here only to capture a moment of the nature wonder. 借此機會，我以最誠摯的謝意感謝您們，感謝您們對我的辛勤栽培及無私的幫助！謝謝您們！ 凱里學(xué)院（化學(xué)與材料工程學(xué)院） 石娟娟 2014年4月13 日凱 里 學(xué) 院本科畢業(yè)論文（設(shè)計）指導(dǎo)教師審閱意見表學(xué)生姓名石娟娟學(xué) 號2010407056所在學(xué)院化學(xué)與材料工程學(xué)院專 業(yè)化學(xué)指導(dǎo)教師吳林冬職 稱副教授論文（設(shè)計）題目不同方法提取甜藤揮發(fā)油的化學(xué)成分比較研究 建議成績對畢業(yè)論文（設(shè)計）完成情況及質(zhì)量、工作能力及態(tài)度、思想表現(xiàn)、論文學(xué)術(shù)水平等進(jìn)行總體評價：指導(dǎo)教師簽名： 年 月 日 請您刪除一下內(nèi)容，O(∩_∩)O謝謝?。?！Many people have the same mixed feelings when planning a trip during Golden Week. With heaps of time, the sevenday Chinese請您刪除一下內(nèi)容，O(∩_∩)O謝謝?。?！National Day holiday could be the best occasion to enjoy a destination. However, it can also be the easiest way to ruin how you feel about a place and you may bee more fatigued after the holiday, due to battling the large crowds. During peak season, a dream about a place can turn to nightmare without careful planning, especially if you travel with children and older people. As most Chinese people will take the holiday to visit domestic tourist destinations, crowds and busy traffic are inevitable at most places. Also to be expected are increasing transport and acmodation prices, with the possibility that there will be no rooms available. It is also mon that you39。授人以魚不如授人以漁，置身其間，耳濡目染，潛移默化，使我不僅接受了全新的思想觀念，樹立了宏偉的學(xué)術(shù)目標(biāo)，領(lǐng)會了基本的思考方式，從論文題目的選定到論文寫作的指導(dǎo),經(jīng)由您悉心的點撥，再經(jīng)思考后的領(lǐng)悟，常常讓我有“山重水復(fù)疑無路，柳暗花明又一村”。（2）通過成分比較，微波輔助萃取法檢測到甜藤揮發(fā)油的成分比用水蒸氣法多，而水蒸氣法提取甜藤揮發(fā)油較高含量的香氣成分比微波輔助萃取法效果更佳；與文獻(xiàn)比較發(fā)現(xiàn)，不同地區(qū)甜藤揮發(fā)油的主要成分和相對含量有較大差異。（1）呋喃甲醛具有類似苯甲醛的特殊氣味，一般用作食品香料，香精的調(diào)配領(lǐng)域也有使用。甜藤揮發(fā)油檢出的化學(xué)物質(zhì)主要為烷、醇、醛、酸、酯、酮六種類型化合物。)3羥基月桂酸C12H24O381—酸262,2,6三甲基6乙烯基四氫2H呋喃3醇C10H18O290—醇27鄰甲基苯甲醛C8H8O92醛28萘C10H888—萘29alpha松油醇C10H18O95醇30冬青油C8H8O394—酯31十二烷C12H2698烷322,3二氫苯并呋喃C8H8O91雜環(huán)33橙花醇C10H18O95醇34(Z)3,7二甲基2,6辛二烯醛C10H16O94—醛35香葉醇C10H18O89—醇36反2壬烯酸C9H16O289酸37壬酸C9H18O292—酸384羥基3甲基苯乙酮C9H10O289—酮39Octahydropentalen1olC8H14O81醇40香葉酸C10H16O296——酸41丁香酸C10H12O289酸42丁香酚C10H12O297—酚43癸酸C10H20O295酸44N乙酰苯胺C8H9NO94—胺45大馬酮C13H18O96酮46正十四烷C14H3096烷47香蘭素C8H8O396——醛48異香草醛C8H8O396—醛49月桂醛C12H24O92—醛50香豆素C9H6O295—酮511,1二葵基氧十六烷C40H82O287—烷52丁香酚C10H12O296—酚53山崳酸C22H44O282—酸54月桂醇C12H26O85—醇552,4二叔丁基苯酚C14H22O91—酚56月桂酸C12H24O296—酸57十七烯C17H3495—烯58正十六烷C16H3496烷594烯丙基2,6二甲氧基苯酚C11H14O389酚604羥基β二氫大馬酮C13H20O286—酮61檸檬酸三乙酯C12H20O783—酯62十六醇CH3(CH2)16OH93—醇63己基癸醇C16H34O86—醇64十七烷C17H3695—烷652,6,10,14四甲基十五烷C19H4092—烷66十三醛C13H26O94—醛675丁基十六烷C20H4278—烷682,6,11,15四甲基十六烷C20H4292—烷69肉豆蔻酸C14H28O295—酸70十九烯C19H3895烯71正十六烷C16H3497——烷729,10EthanoanthraceneC20H18O270—酮73油酸C18H34O281—酸74植酮C18H36O85—酮75正十五酸C15H30O294酸76鄰苯二甲酸二異丁酯C16H22O496酯77十五醇C15H32O93—醇78三十五烷C35H7089—烷79十九烷C19H4095—烷80正十五腈C15H29N92—腈81油酸C18H34O292酸82棕櫚酸C16H32O292—酸83棕櫚酸乙酯C18H36O288—酯84二十烷C20H4297烷4 討論 甜藤揮發(fā)油主要化學(xué)成分的定性分析采用水蒸氣蒸餾法提取的甜藤揮發(fā)油，經(jīng)過GCMS的測定分析，檢出得到化學(xué)成分43種，相對百分含量在1%以上的有20種，%；含量在5%以上的有7種，%。雖然對甜藤揮發(fā)油的提取方法、成分分析以及藥用等方面均有研究，但凱里地區(qū)甜藤的天然資源非常豐富，本地方有得天獨厚的自然環(huán)境適宜甜藤的生長和培植，并且尚未有人對本地方的甜藤進(jìn)行相關(guān)研究，其揮發(fā)性成分與其它地方是否相同？不同提取方法所得揮發(fā)油成分又有何差異？對于這些問題，我們期待得到很好解答，因此有必要作進(jìn)一步探討和比較。李杰[10]等人采用超臨界CO2萃取甜藤中的有效成分經(jīng)氣相色譜質(zhì)譜聯(lián)用(GC/MS)技術(shù)對萃取液化學(xué)成分進(jìn)行分析首次鑒定出6種新的有效成分。日本科學(xué)家通過氣相色譜對其釋放出的氣體成分進(jìn)行了分析，其主要成分有COS、CS2和SO2，主要含硫有機成分有CH3SCH3 和CH3SSCH3[3]。甜藤在栽后910月除留種以外，每年都可以摘取地上部分曬干或者晾干，或在秋季的時候挖根、洗凈、切片、曬干供藥用。 MAE method identify 67 chemical position, it has 21 content of chemical position more than 1%, and there is accounting for the total oil content %. the same chemical position are detected by two methods include that: 2ethoxyPropane, Furfural, 2Furanmethanol, Cyclohexanol, Benzyl Alcohol, Benzeneacetaldehyde, Benzenemethanol, Phenylethyl Alcoho ect. There is a great difference pared with references, special flavor ponents containing