 |
 |
 |
 |
 |
 |
||
 |
 |
 |
 |
 |
| 8 | 1/1 | 返回列表 |
| 查看: 1202 | 回復(fù): 7 | ||
| 本帖產(chǎn)生 1 個 翻譯EPI ，點擊這里進行查看 | ||
sdspspsp木蟲 (正式寫手)
|
[求助]
食品 酒類 白蘭地方面 論文摘要漢譯英 急用！�。�
|
|
|
揮發(fā)性香氣物質(zhì)對白蘭地的感官特征有著極其重要的影響，長期以來，國外學(xué)者對白蘭地的研究主要是在揮發(fā)性香氣物質(zhì)上，近些年來，國內(nèi)學(xué)者也逐漸把白蘭地的揮發(fā)性香氣物質(zhì)作為重點研究方向。白蘭地的橡木桶貯藏陳釀是白蘭地釀造工藝中至關(guān)重要的一步，是白蘭地從未成熟到成熟成長的搖籃，經(jīng)過橡木桶貯藏陳釀，白蘭地的色澤、口感、風(fēng)味等品質(zhì)都有明顯改善。 本研究以張裕陳釀過程中的白蘭地為研究對象，使用頂空固相微萃取（HS-SPME）耦合氣相色譜-質(zhì)譜聯(lián)用技術(shù)（GC-MS），建立了一系列檢測分析方法，目的是確定張裕白蘭地陳釀過程中揮發(fā)性香氣成分的種類和含量，找到白蘭地陳釀規(guī)律，建立關(guān)鍵香氣成分的系統(tǒng)動力學(xué)模型，最終實現(xiàn)可以通過陳釀時間調(diào)整關(guān)鍵香氣成分的含量，達到提高產(chǎn)品品質(zhì)的目標(biāo)。主要研究內(nèi)容如下： （1）首先簡要地對白蘭地進行了概述，介紹了白蘭地的中外發(fā)展史。詳細的介紹了固相微萃取技術(shù)（SPME）的原理及應(yīng)用，簡要討論了揮發(fā)性成分的鑒定方法。對國內(nèi)外目前對白蘭地的研究現(xiàn)狀進行了闡述，并指出依然存在的問題。 （2）對白蘭地揮發(fā)性成分測定的預(yù)處理方法（HS-SPME）進行了優(yōu)化，優(yōu)化后的萃取條件為預(yù)平衡10min，萃取溫度50℃，萃取時間5min，樣品取樣5mL，乙醇濃度10%（v/v），加鹽量1.5g；萃取頭解吸附時間5min；可以通過調(diào)節(jié)分流比對飽和峰進行檢測。 （3）采用優(yōu)化的HS-SPME條件，結(jié)合GC-MS技術(shù)對陳釀0~6年的張裕白蘭地進行定性定量分析，共鑒定出113種揮發(fā)性物質(zhì)，其中，酯類和高級醇是陳釀白蘭地中含量最高的兩種揮發(fā)性成分，分別占總揮發(fā)物的59%和33%左右。 （4）本次實驗共穩(wěn)定的檢測出29種關(guān)鍵香氣成分，獲得了關(guān)鍵香氣成分與陳釀時間變化的關(guān)系，可以通過陳釀時間調(diào)整關(guān)鍵香氣成分的含量，達到提高產(chǎn)品品質(zhì)的目標(biāo)。 |
回復(fù)此樓» 猜你喜歡
308求調(diào)劑
已經(jīng)有3人回復(fù)
-
321求調(diào)劑
已經(jīng)有11人回復(fù)
-
一志愿中海洋材料工程專碩330分求調(diào)劑
已經(jīng)有8人回復(fù)
-
330求調(diào)劑
已經(jīng)有4人回復(fù)
-
304求調(diào)劑
已經(jīng)有7人回復(fù)
-
一志愿南京理工大學(xué)085701資源與環(huán)境302分求調(diào)劑
已經(jīng)有6人回復(fù)
-
南京大學(xué)化學(xué)376求調(diào)劑
已經(jīng)有3人回復(fù)
-
考研調(diào)劑求學(xué)校推薦
已經(jīng)有5人回復(fù)
-
323求調(diào)劑
已經(jīng)有3人回復(fù)
-
317求調(diào)劑
已經(jīng)有12人回復(fù)
【答案】應(yīng)助回帖
★
愛與雨下: 金幣+1 2013-03-29 21:54:11
愛與雨下: 金幣+1 2013-03-29 21:54:11
| Volatile Aromatic constituents have an extremely influence in the organoleptic properties of brandy. for a long time , foreign scholors' research of brandy concentrated on the volatile aromatic constituents about. In recent years ,domestic scholars are also gradually taking it as key research directions.先給100金幣。 |
2樓2013-03-29 16:15:46
【答案】應(yīng)助回帖
★
愛與雨下: 金幣+1 2013-03-29 21:54:22
愛與雨下: 金幣+1 2013-03-29 21:54:22
| Aging in the storage of oak barrel is a crucial step in the brewing technology of brandy.It is the bassinet of brandy from inmature to mature.After aging in the storage of oak barrel ,quality such as tincture、taste、aroma have a distinct improvement |
3樓2013-03-29 16:30:30
fjtony163
版主 (文壇精英)
米米
- 翻譯EPI: 386
- 應(yīng)助: 361 (碩士)
- 貴賓: 6.876
- 金幣: 70610.6
- 散金: 36050
- 紅花: 222
- 沙發(fā): 616
- 帖子: 21912
- 在線: 3793.7小時
- 蟲號: 1397876
- 注冊: 2011-09-11
- 專業(yè): 遺傳學(xué)研究新技術(shù)與方法
- 管轄: 論文翻譯
4樓2013-03-29 17:20:43
5樓2013-03-29 17:28:30
【答案】應(yīng)助回帖
★
愛與雨下: 金幣+1 2013-03-29 21:54:30
愛與雨下: 金幣+1 2013-03-29 21:54:30
| Volatile Aromatic constituents have an extremely influence in the organoleptic properties of brandy. for a long time , foreign scholors' research of brandy concentrated on the volatile aromatic constituents。In recent years ,domestic scholars are also gradually taking it as key research directions。Aging in the storage of oak barrel is a crucial step in the brewing technology of brandy.It is the bassinet of brandy from inmature to mature.After aging in the storage of oak barrel ,quality such as tincture、taste、aroma have a distinct improvement |
6樓2013-03-29 17:29:22
cory0931
至尊木蟲 (文壇精英)
巫山云
- 翻譯EPI: 14
- 應(yīng)助: 28 (小學(xué)生)
- 貴賓: 0.101
- 金幣: 30146.9
- 散金: 13861
- 紅花: 198
- 帖子: 10478
- 在線: 1003.5小時
- 蟲號: 1652657
- 注冊: 2012-02-29
- 性別: GG
- 專業(yè): 臨床獸醫(yī)學(xué)
【答案】應(yīng)助回帖
★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ...
sdspspsp: 金幣+400, 翻譯EPI+1, ★★★★★最佳答案, 謝謝了，雖然某些專業(yè)詞匯不太對，我自己修飾就可以了 2013-03-30 00:03:33
sdspspsp: 金幣+400, 翻譯EPI+1, ★★★★★最佳答案, 謝謝了，雖然某些專業(yè)詞匯不太對，我自己修飾就可以了 2013-03-30 00:03:33
|
volatile aromatic substance have great effect on the organoleptic properties of brandy. For a long time, international researchers’ effort of brandy study is mainly on its volatile aroma, and it has been gradually highlighted by domestic researchers in the past few years. Oaken bucket storage of brandy is a key step in brewing of brandy and the main procedure of its maturation. After storaged with oaken bucket, brandy’s color, mouthfeel and its flavor had been significantly improved. Brandy of Zhangyu aging procedure was our object of study, using headspace solid-phase microextraction(technique) coupling with gas chomatography-mass spectrometry technique, a series of detecting and analyzing methods were established. Aimed to determine the evaporated component and content in Zhangyu Brandy aging process, find its rule of aging, establish the maturing kinetic model and finally accomplish to modify the component and content of the related fragrance of Zhangyu Brandy to improve its quality. The main content of this article are as follows: (1) introduction of brandy’s domestic and international history. The principle and application of SPME technique will be introduced in detail. brief discussion the assaying method of volatile substance. review the current situation of brandy study both in and abroad, and try to suggest propose the problems remained unsolved. (2) preprecessing method of brandy volatile substance was optimized. And the optimized parameter of extraction is pre-equilibration for 10 min, extraction 5 min at 50℃ for 5 min with 5 mL samples, with 10% ethanol and 1.5 g salt. The extraction tip undo absorption time is 5 min, and the component and content can be detected by modifying diffluence and comparing saturation peak. (3) 113 substance had been identified by quantitatively analyzing the 5 to 6 years aged Zhangyu Brandy, using optimized HS-SPME parameters combined with GC-MS technique. Of which, lipids and fatty alcohol are of highest content of the volatile substance, account for 59% and 33%, respectively. (4) 29 key aromatic substance had been identified in this study. the relation of the key aroma substance component changing and time was obtained, and the quality of Zhangyu Brandy can be improved by modifying the content of key aromatic substance and the aging time.  |
7樓2013-03-29 22:08:29
cory0931
至尊木蟲 (文壇精英)
巫山云
- 翻譯EPI: 14
- 應(yīng)助: 28 (小學(xué)生)
- 貴賓: 0.101
- 金幣: 30146.9
- 散金: 13861
- 紅花: 198
- 帖子: 10478
- 在線: 1003.5小時
- 蟲號: 1652657
- 注冊: 2012-02-29
- 性別: GG
- 專業(yè): 臨床獸醫(yī)學(xué)
8樓2013-03-29 22:11:29
相關(guān)版塊跳轉(zhuǎn)
我要訂閱樓主 sdspspsp 的主題更新
| 8 | 1/1 | 返回列表 |
| 最具人氣熱帖推薦 [查看全部] | 作者 | 回/看 | 最后發(fā)表 | |
|---|---|---|---|---|
|
[考研] 一志愿中南化學(xué)（0703）總分337求調(diào)劑 +8 | niko- 2026-03-19 | 9/450 |
|
|---|---|---|---|---|
|
|
[考研] 290求調(diào)劑 +7 | ^O^乜 2026-03-19 | 7/350 |
|
|
[考研] 求調(diào)劑 +5 | Mqqqqqq 2026-03-19 | 5/250 |
|
|
|
[考研] 材料學(xué)求調(diào)劑 +4 | Stella_Yao 2026-03-20 | 4/200 |
|
|
|
[考研] 廣西大學(xué)家禽遺傳育種課題組2026年碩士招生（接收計算機專業(yè)調(diào)劑） +3 | 123阿標(biāo) 2026-03-17 | 3/150 |
|
|
|
[考研] 一志愿天津大學(xué)化學(xué)工藝專業(yè)（081702）315分求調(diào)劑 +11 | yangfz 2026-03-17 | 11/550 |
|
|
|
[考研] 085600材料與化工調(diào)劑 324分 +10 | llllkkkhh 2026-03-18 | 12/600 |
|
|
|
[考研] 0703化學(xué)調(diào)劑，求各位老師收留 +10 | 秋有木北 2026-03-14 | 10/500 |
|
|
|
[考研] 311求調(diào)劑 +4 | 冬十三 2026-03-18 | 4/200 |
|
|
|
[考研] 311求調(diào)劑 +6 | 26研0 2026-03-15 | 6/300 |
|
|
|
[考研] 一志愿西南交大，求調(diào)劑 +4 | 材化逐夢人 2026-03-18 | 4/200 |
|
|
|
[考研] 302求調(diào)劑 +10 | 呼呼呼。。。。 2026-03-17 | 10/500 |
|
|
|
[考研] 生物學(xué)071000 329分求調(diào)劑 +3 | 我愛生物生物愛?/a> 2026-03-17 | 3/150 |
|
|
|
[考研] 283求調(diào)劑 +3 | 聽風(fēng)就是雨； 2026-03-16 | 3/150 |
|
|
|
[考研] [導(dǎo)師推薦]西南科技大學(xué)國防/材料導(dǎo)師推薦 +3 | 尖角小荷 2026-03-16 | 6/300 |
|
|
|
[考研] 333求調(diào)劑 +3 | 文思客 2026-03-16 | 7/350 |
|
|
|
[考研] 304求調(diào)劑 +4 | ahbd 2026-03-14 | 4/200 |
|
|
|
[考研] 中科院材料273求調(diào)劑 +4 | yzydy 2026-03-15 | 4/200 |
|
|
|
[考研] 070305求調(diào)劑 +3 | mlpqaz03 2026-03-14 | 4/200 |
|
|
|
[考研] 中科大材料與化工319求調(diào)劑 +3 | 孟鑫材料 2026-03-14 | 3/150 |
|