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米泔水漂白术漂制过程中挥发性成分的动态变化研究
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| 篇名： | 米泔水漂白术漂制过程中挥发性成分的动态变化研究 |
| TITLE： | Study on dynamic changes of volatile components during the bleaching process of Atractylodis macrocephala with the water of washing rice |
| 摘要： | 目的 研究米泔水漂白术漂制过程中挥发性成分的组成及含量变化。方法制备白术生品及其5个不同漂制阶段漂制品（第1、2阶段漂制品分别为生品用9倍量米泔水各漂12、24h；第3～5阶段漂制品分别为生品先用9倍量米泔水漂24h，再用9倍量清水各漂12、24、48h），漂洗温度均为26℃。采用顶空气相色谱-质谱联用法对白术生品及其5个不同漂制阶段漂制品的挥发性成分进行定性分析，并运用峰面积归一化法计算各成分的相对百分含量。结果从白术生品及其5个不同漂制阶段漂制品中共鉴别出49个挥发性成分，包含萜品油烯、莎草烯、苍术酮等在内的20个共有挥发性成分。其中，从白术生品、第1～5阶段漂制品中分别鉴别出了33、31、28、30、28、29种挥发性成分，其总相对百分含量分别为66.218％、64.711％、79.410％、65.419％、67.101％、66.818％；其中，苍术酮的相对百分含量在第4阶段漂制品中最高（41.206％），第3阶段漂制品中最低（35.926％）。与白术生品比较，漂制过程中新增了pethylbrene、β-vetivenen等16个挥发性成分，未检测到棕榈酸乙酯、β-maaliene等8个挥发性成分，而11-rotundene、（－）-valeranone等5个挥发性成分在漂制过程中呈消失-出现和消失-出现-消失的变化趋势。结论在第3个漂制阶段白术漂制品中各挥发性成分的总相对百分含量和燥性代表性成分苍术酮的相对百分含量均最低，即缓解白术燥性的米泔水漂制工艺为白术生品用9倍量米泔水漂24h，再用9倍量清水漂12h。 |
| ABSTRACT： | OBJECTIV E To study composition an d content changes of volatile components during the bleaching process of Atractylodis macrocephala with the water of washing rice. METHODS The raw products of A. macrocephala and bleached products of 5 different bleaching stages were prepared （in the first and second stages ，raw products were bleached with 9-fold volumn of the water of washing rice for 12 h and 24 h，respectively；in the third ，fourth and fifth stages ，the raw products were firstly bleached with 9-fold volumn of the water of washing rice for 24 h，and then bleached with 9-fold volumn of clean water for 12，24 and 48 h，respectively）；the bleaching temperature was set at 26 ℃. The volatile components of raw products of A. macrocephala and its bleached products of 5 different bleaching stages were qualitatively analyzed by using headspace gas chromatography-mass spectrometry. The relative percentage of each component was calculated by peak area normalization method. RESULTS A total of 49 volatile components were identified from raw products of A. macrocephala and its bleached products of 5 different bleaching stages，including 20 common volatile components such as terpinolene ，cyperene and atractylon ，etc. Among them ，33，31，28， 30，28 and 29 volatile components were identified from the raw products of A. macrocephala and the bleached products of the first to fifth stages ，the relative percentages of which were 66.218％ ，64.711％ ，79.410％ ，65.419％ ，67.101％ ，66.818％ ， respectively；among them ，the relative percentage of atractylon in bleached products was the highest in the fourth stage （41.206％），but was the lowest in the third stage （35.926％）. Compared with the raw product ，16 volatile components such as pethylbrene and β-vetivenen were added in the bleaching process ，while 8 volatile components such as ethyl palmitate and β-maaliene were not detected. However ，5 volatile components including 11-rotundene and （－）-valeranone in the bleaching process showed a trend of disappearance-emergence and disappearance-emergence-disappearance. CONCLUSIONS In the third stage，the total relative percentage of each volatile component and the relative percentage of representative dry component as ， atractylone are the lowest in bleached products of A. ； macrocephala，i.e. the bleaching technology of relieving the dry property of A. macrocephala e with the water of washing rice is bleaching with 9-fold volumn of the water of washing rice for 24 h，and then bleaching with 9-fold volumn of clean water for 12 h. |
| 期刊： | 2022年第33卷第17期 |
| 作者： | 杨丹阳，于欢，吴晓莹，朱盈徽，徐万爱，吴静雨，肖小林，龚千锋 |
| AUTHORS： | YANG Danyang，YU Huan，WU Xiaoying，ZHU Yinghui，XU Wan ’ai，WU Jingyu，XIAO Xiaolin，GONG Qianfeng |
| 关键字： | 白术；米泔水；漂制过程；挥发性成分；含量变化；顶空气相色谱-质谱联用法 |
| KEYWORDS： | Atractylodis macrocephala ； the water of |
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