| 第 52 卷第 2 期 |  | Vol. 52 No. 2 | | 2022 年 4 月 | Apr 2022 |
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所屬欄目：香精香料
浸漬前處理對水蒸氣蒸餾提取樟樹(shù)葉精油影響研究 |
| 楊海寬1，溫世鈁1，邱鳳英1，郭 捷1，邱建平2，許鵬云2
（1. 國家林業(yè)草原樟樹(shù)工程技術(shù)研究中心 江西省林業(yè)科學(xué)院，江西 南昌 330032；2. 德興市林業(yè)局，江西 德興 334200） |
| 摘 要：研究了浸漬前處理結合水蒸氣蒸餾提取樟樹(shù)芳樟醇化學(xué)型葉精油。優(yōu)化工藝條件：葉片與水質(zhì)量比1∶10，浸漬溫度80 ℃，浸提時(shí)間2 h。與傳統水蒸氣蒸餾法對比，浸漬次數顯著(zhù)影響精油提取率。4次浸漬蒸餾處理后，剩余物中浸漬蒸餾提取精油含量低于總收率5.00%。比較精油化學(xué)成分，浸漬前處理獲得精油中含氧單萜（OM）、倍半萜烴（SH）和含氧倍半萜（OS）總量基本不變，但剩余物精油化學(xué)組成顯著(zhù)變化。浸漬次數增加，芳樟醇含量先增加后減小，第二、三次浸漬獲得精油中芳樟醇含量超過(guò)96.00%，第四次浸漬獲得的精油組分中天然龍腦含量顯著(zhù)增加，達到6.01%。浸漬過(guò)程中，精油組分中反式-橙花叔醇含量基本無(wú)變化，但剩余物中含量顯著(zhù)增加，達到33.10%。 |
| 關(guān)鍵詞：浸漬前處理；精油；樟樹(shù) |
| 中圖分類(lèi)號：TQ35 文獻標識碼：A 文章編號：1009-9212（2022）02-0054-05 |
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| Study on the Effect of Dipping Pretreatment for the Steam Distillation Extraction of Essential Oils From Cinnamomum Camphora Leaves |
| YANG Hai-kuan1, WEN Shi-fang1, QIU Feng-ying1, GUO Jie1, QIU Jian-ping2, XU Peng-yun2
(1.Camphor Engineering Technology Research Center for National Forestry and Grassland Administration, Jiangxi Academy of forestry, Nanchang 330032, China; 2. Dexing Department of Forestry, Dexing 334200, China) |
| Abstract：A dipping pretreatment for steam distillation technology was developed. The optimum conditions of dipping pretreatment as the followings: the mass ratio of leaves to water was 1∶10; the dipping temperature was 80 ℃, and the dipping time was 2 h. The essential oil extraction recovery was significantly affected by the dipping times in this novel method. The essential oil in the residue materials was less than 5.00% after four dipping pretreatment cycles. The total content of oxygenated monoterpenes (OM), sesquiterpene hydrocarbons (SH) and oxygenated sesquiterpenes (OS) in the essential oil remained essentially unchanged by the dipping pretreatment but was significantly changed in essential oils in the residue materials. With the increasement in the number of dipping times, the content of linalool in the essential oils increased at first and then decreased after three dipping pretreatment applications. Consequently, higher content of linalool in the oils were obtained after the 2nd and 3rd dipping pretreatments with a linalool content higher than 96.00%. Meanwhile, with the increase in the pretreatment times, the borneol content remained was not significantly changed before the 3rd pretreatment but increased significantly after the 4th pretreatment and reached up to 6.01%. With the increase times in the pretreatments, the trans-nerolidol content did not change substantially during the dipping pretreatments but increased significantly in the residue materials with a content up to 33.10%. |
| Key words：dipping pretreatment; essential oils; cinnamomum camphora |
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基金項目：江西省科技計劃項目（S2018YYYJPYB0245），江西特色林木資源培育與利用協(xié)調創(chuàng )新中心子課題。
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作者簡(jiǎn)介：楊海寬（1985—），男，江西吉安人，助理研究員，碩士，研究方向：林產(chǎn)化學(xué)加工工程（E-mail：yanghaikuan1985@163.com）。
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收稿日期：2021-11-23
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