Analysis of Volatile Compounds in Aged Fengxiang Crude Baijiu Based on GC-MS and GC-IMS
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摘要: 以酒海贮存的凤香型年份基酒为研究对象,采用气相色谱-质谱联用(Gas Chromatography-Mass Spectrometry,GC-MS)和气相离子迁移谱(Gas Chromatography-Ion Mobility Spectroscopy,GC-IMS)技术分析凤香型基酒在酒海贮存过程中挥发性物质变化。结果表明:GC-MS检出85种化合物,其中酯类41种、酸类10种和醇类物质17种,且包含一些分子量较大的化合物,在贮存过程中,酯类物质下降明显,酸类物质含量上升,棕榈酸乙酯、亚油酸乙酯、反油酸乙酯、十八酸乙酯等高级脂肪酸酯、苯乙醇呈线性增长。GC-IMS定性出47种,以酯类(23种)、醛酮类(14种)为主,其对小分子物质较为灵敏,二丙基硫醚、异戊烷、双乙酰等物质含量随时间的增加呈上升趋势;两种技术的主成分分析(PCA)均说明年份基酒之间差异显著。在两种技术手段的协同下,获得了陈酿过程中凤香型基酒挥发性成分变化规律,主要表现为:酸升酯降,棕榈酸乙酯、亚油酸乙酯、反油酸乙酯、十八酸乙酯、苯乙醇、苯甲醛、二甲基硫醚、乳酸含量明显增加,为凤香型基酒陈酿体系的建立提供理论依据。Abstract: Targeted at the aged Fengxiang crude Baijiu stored in Jiuhai, a container for Chinese Baijiu, this paper adopted the gas chromatography-mass spectrometry (GC-MS) and gas chromatography-ion mobility spectrometry (GC-IMS) to analyze the changes of volatile substances in the Fengxiang Baijiu. The results indicated that 85 compounds were detected by GC-MS, including 41 esters, 10 acids, 17 alcohols, and some compounds with high molecular weight. During storage, the content of esters decreased obviously, that of acids increased, and that of higher fatty acid esters such as ethyl palmitate, ethyl linoleate, elaidic acid ethyl ester, and stearic acid ethyl ester, and phenylethyl alcohol showed a linear growth. In contrast, a total of 47 compounds, dominated by 23 esters and 14 aldehydes and ketones, were identified by GC-IMS, as it was more sensitive to substances with small molecules. It was found that the content of dipropyl sulfide, isopentane, diacetyl, etc., increased with time. The principal component analysis (PCA) of the two techniques showed that there were significant differences between aged crude Baijiu. Combining the above two techniques, a change law of the volatile components in aged Fengxiang crude Baijiu was derived, the content of acids increased, that of esters declined, and that of ethyl palmitate, ethyl linoleate, elaidic acid ethyl ester, stearic acid ethyl ester, phenylethyl alcohol, benzaldehyde, dimethyl sulfide, and lactic acid grew. It was expected that the results of this paper could provide a theoretical basis for the establishment of the aging system of Fengxiang Baijiu.
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表 1 样品信息
Table 1. Message of the sample
序号 编号 贮存时间 生产时间 取样时间 序号 编号 贮存时间 生产时间 取样时间 1 A(0) 0年 2018.03.10 2018.03.21 10 D(5) 5年 2013.04.08 2018.03.18 2 2018.03.11 2018.03.21 11 2013.02.14 2018.03.18 3 2018.03.12 2018.03.22 12 2013.04.20 2018.03.18 4 B(2) 2年 2016.02.15 2018.03.21 13 E(7) 7年 2011.02.15 2018.03.18 5 2016.02.27 2018.03.21 14 2011.02.20 2018.03.18 6 2016.03.13 2018.03.21 15 2011.03.04 2018.03.18 7 C(3) 3年 2015.01.14 2018.03.21 16 F(9) 9年 2009.03.20 2018.03.18 8 2015.01.05 2018.03.21 17 2009.03.25 2018.03.18 9 2015.04.08 2018.03.21 18 2009.03.05 2018.03.18 表 2 不同年份凤香型基酒挥发性物质分析
Table 2. Analysis of volatile compounds in different years-stored Fengxiang crude liquor
种类 序号 物质名称 香气描述[24-31] 含量(mg/L) A(0) B(2) C(3) D(5) E(7) F(9) 酯类 1 丁酸乙酯* 玫瑰、菠萝香、果香 140.81±6.46b 155.4±4.96a 134.21±4.67b 122.96±3.57c 111.23±3.41d 93.65±4.31e 2 乙酸乙酯* 水果香、酒香、菠萝香 1874.2±85.95a 1951.46±62.25a 963.53±33.54b 741.76±21.55c 344.62±10.57d 249.07±11.47e 3 己酸乙酯* 菠萝香、香蕉香 999.57±45.84b 1147.57±36.61a 844.34±29.39c 731.76±21.26d 537.28±16.48e 518.06±23.87e 4 乳酸乙酯* 水果香、果香 1237.57±56.76e 692.33±22.08f 1541.45±53.66d 2039.34±59.25c 2751.97±84.43a 2344.22±108.00b 5 乙酸丁酯 183.54±8.42b 233.5±7.45a 78.68±2.74d 99.52±2.89c 66.56±2.04e 60.09±2.77e 6 乙酸异戊酯 果糖香、果香 0.72±0.03d 1.18±0.04a 0.61±0.02e 0.91±0.03bc 0.87±0.03c 0.95±0.04b 7 戊酸乙酯 水蜜桃香、花香、甜香 7.75±0.36ab 8.03±0.26a 7.53±0.26b 6.87±0.20c 5.79±0.18d 5.04±0.23e 8 异丁酸丁酯 苹果香、水果香 0.03±0.00b 0.08±0.00a – 0.02±0.00c 0.02±0.00c – 9 乙酸戊酯 水果香 0.05±0.00a 0.06±0.00a 0.03±0.00c 0.05±0.00b 0.01±0.00d 0.06±0.00a 10 甲酸异丙酯 – – 0.47±0.02b 0.1±0.00e 0.3±0.01c 0.53±0.02a 0.17±0.01d 11 异己酸乙酯 – 0.13±0.01b 0.05±0.00d 0.03±0.00e 0.14±0.00a 0.06±0.00c 0.05±0.00d 12 丁酸异戊酯 香蕉、梨、苹
果香0.12±0.01d 0.12±0.00d 0.11±0.00d 0.14±0.00c 0.28±0.01b 0.43±0.02a 13 乙酸己酯 梨香、苹果香 0.49±0.02b 0.53±0.02a 0.32±0.01c 0.16±0.00e 0.16±0.00e 0.27±0.01d 14 己酸丙酯 菠萝香、水果香 1.03±0.05a 0.77±0.02b 0.38±0.01d 0.2±0.01e 0.43±0.01c 0.47±0.02c 15 庚酸乙酯 水果香、甜香 2.81±0.13a 2.49±0.08b 2.43±0.08b 2.17±0.06c 1.79±0.05d 0.86±0.04e 16 2-羟基丁酸乙酯 果香 0.05±0.00c – – 0.04±0.00d 0.07±0.00b 0.09±0.00a 17 己酸丁酯 香蕉、水果香 2.03±0.09a 1.45±0.05c 1.31±0.05d 1.73±0.05b 0.52±0.02e 0.52±0.02e 18 丁酸己酯 甜果香味 0.16±0.01b 0.07±0.00c – 0.07±0.00c 0.06±0.00d 0.17±0.01a 19 2-羟基-3-甲基丁酸乙酯 – – – – 0.27±0.01c 0.55±0.02b 1.11±0.05a 20 辛酸乙酯 菠萝香、梨香、果香 4.84±0.22a 3.36±0.11b 2.73±0.09c 2.15±0.06d 1.78±0.05e 1.95±0.09de 21 己酸异戊酯 水果香、花香 0.33±0.02d 0.38±0.01c 0.23±0.01e 0.66±0.02a 0.6±0.02b 0.64±0.03ab 22 乳酸丁酯 奶油香、果香 0.45±0.02b 0.23±0.01d 0.26±0.01c 0.11±0.00e 0.11±0.00e 0.81±0.04a 23 DL-2-羟基-4-甲基戊酸乙酯 – 7.11±0.33a 4.09±0.13b 2.43±0.08c 1.26±0.04e 1.55±0.05d 0.52±0.02f 24 乳酸异戊酯 0.71±0.03d – – 1.02±0.03c 1.43±0.04b 2.23±0.10a 25 己酸己酯 水果香 0.97±0.04bc 1.1±0.04a 0.92±0.03c 0.68±0.02d 0.57±0.02e 1±0.05b 26 癸酸乙酯 花香、水果香 0.25±0.01c 0.24±0.01c 0.15±0.01d 0.33±0.01b 0.35±0.01b 0.8±0.04a 27 丁二酸二乙酯 甜香、水果香 0.1±0.00e 0.09±0.00e 0.16±0.01d 0.2±0.01c 0.24±0.01b 0.34±0.02a 28 甲氧基乙酸己酯 – 0.15±0.01b 0.04±0.00e 0.06±0.00c 0.05±0.00d – 0.16±0.01a 29 苯乙酸乙酯 蜂蜜香 0.1±0.00d 0.09±0.00d 0.11±0.00c 0.07±0.00e 0.14±0.00b 0.17±0.01a 30 乙酸苯乙酯 玫瑰花香、橡胶臭、胶皮臭 0.12±0.01a 0.06±0.00d 0.06±0.00d 0.09±0.00c 0.12±0.00a 0.11±0.01b 31 3-苯丙酸乙酯 花香、玫瑰香 0.24±0.01d 0.19±0.01e 0.25±0.01d 0.34±0.01c 0.49±0.02b 0.67±0.03a 32 十四酸乙酯 甜香、蜡香 0.42±0.02c 0.35±0.01d 0.27±0.01e 0.36±0.01d 0.48±0.01b 0.67±0.03a 33 乙基9-氧代壬
酸酯– – 0.06±0.00c 0.06±0.00b – – 0.13±0.01a 34 十五酸乙酯 – 0.08±0.00c 0.09±0.00b 0.06±0.00d 0.09±0.00b 0.05±0.00e 0.13±0.01a 35 油酸乙酯 – 0.11±0.01c 0.13±0.00b 0.07±0.00d 0.11±0.00c 0.2±0.01a 0.2±0.01a 36 9-十六碳烯酸
乙酯– 0.32±0.01c 0.35±0.01b 0.17±0.01e 0.21±0.01d 0.19±0.01de 0.47±0.02a 37 十八酸乙酯 – 0.19±0.01e 0.21±0.01e 0.24±0.01d 0.3±0.01c 0.4±0.01b 0.47±0.02a 38 反油酸乙酯 – 3.19±0.15e 3.87±0.12d 4.75±0.17c 5.02±0.15c 5.51±0.17b 6.24±0.29a 39 亚油酸乙酯 – 2.97±0.14e 4.89±0.16d 5.07±0.18d 6.17±0.18c 6.63±0.20b 7.07±0.33a 40 棕榈酸乙酯 – 6.39±0.29f 8.19±0.26e 9.42±0.33d 10.24±0.30c 11.2±0.34b 14.62±0.67a 41 亚麻酸乙酯 – 0.2±0.01c 0.17±0.01d 0.11±0.00e 0.27±0.01b 0.29±0.01a 0.28±0.01ab 酯类物质总量 4487.08±52.01a 4198.31±23.56a 3566.99±45.67b 3742.55±30.01b 3819.46±89.30b 3282.34.±70.34c 42 甲醇* – 273.69±12.55a 177.32±5.66b 162.26±5.65c 128.96±3.75d 100.31±3.08e 81.69±3.76f 醇类 43 仲丁醇* 果香 65.45±3.00b 48.81±1.56c 69.11±2.41ab 51.98±1.51c 66.54±2.04ab 70.74±3.26a 44 正丙醇* 乙醇香 642.58±29.47a 512.02±16.33b 496.79±17.29b 479.84±13.94b 407.18±12.49c 478.21±22.03b 45 异丁醇* 果香 127.92±5.87de 124.52±3.97e 140.22±4.88d 179.94±5.23c 274.1±8.41a 246.08±11.34b 46 正丁醇* 乙醇香 537.47±24.65b 545.89±17.41b 651.03±22.66a 146.95±4.27c 135.07±4.14c 130.51±6.01c 47 异戊醇* 水果香、指甲油味 392.69±18.01d 365.59±11.66d 384.61±13.39d 467.85±13.59c 886.87±27.21a 826.9±38.10b 48 2-戊醇 果香 1.99±0.09a 1.83±0.06b 1.47±0.05c 0.95±0.03d 0.89±0.03d 0.93±0.04d 49 2-己醇 花香、青香 0.16±0.01a 0.07±0.00b 0.08±0.00b 0.07±0.00b 0.07±0.00b 0.01±0.00c 50 3-甲基-3-丁烯-1-醇 – 0.16±0.01c 0.25±0.01a 0.14±0.00d 0.13±0.00d 0.1±0.00e 0.2±0.01b 51 1-戊醇 果香 4.17±0.19b 4.53±0.14a 3.84±0.13c 2.02±0.06e 1.48±0.05f 2.68±0.12d 52 2-庚醇 – 0.09±0.00e 0.22±0.01b 0.26±0.01a 0.23±0.01b 0.11±0.00d 0.15±0.01c 53 己醇 花香 26.08±1.20b 29.71±0.95a 20.24±0.70c 10.72±0.31d 11.07±0.34d 21.04±0.97c 54 3-乙氧基丙醇 – – 0.02±0.00c 0.04±0.00b 0.02±0.00c 0.05±0.00a – 55 正辛醇 – 0.44±0.02a 0.21±0.01d 0.29±0.01c 0.36±0.01b 0.29±0.01c 0.34±0.02b 56 糠醇 – 0.17±0.01d 0.29±0.01b 0.16±0.01d 0.31±0.01a 0.22±0.01c 0.12±0.01e 57 苯乙醇 玫瑰香、蜜香 0.66±0.03e 0.83±0.03d 0.85±0.03d 1.02±0.03c 1.2±0.04b 1.5±0.07a 58 1-辛烯-3-醇 青草香、水果香 0.08±0.00a 0.08±0.00a – – 0.05±0.00b – 醇类物质总量 2073.80±95.11a 1812.21±57.81b 1931.41±67.23b 1471.38±42.75c 1885.65±57.85b 1861.11±85.74b 酸类 59 乙酸 醋酸味、酸臭 693.35±31.80c 894.13±28.52b 991.91±34.53a 932.2±27.09b 906.76±27.82b 900.33±41.48b 60 乳酸& – 131.39±6.03e 144.52±4.61e 320.12±11.14d 380.71±11.06c 460.73±14.13b 752.78±34.68a 61 丙酸 醋酸气味 0.39±0.02e 0.5±0.02d 0.6±0.02c 0.44±0.01de 0.76±0.02b 1.83±0.08a 62 异丁酸 汗臭、酸香 1.81±0.08e 2.2±0.07d 2.64±0.09c 2.28±0.07d 3.23±0.10b 4.19±0.19a 63 丁酸 油脂腐臭、汗臭 15.55±0.71c 15.54±0.50c 15.71±0.55c 13.13±0.38d 22.29±0.68b 24.62±1.13a 64 正戊酸 汗臭、腐臭味 3.02±0.14a 3.16±0.10a 2.14±0.07c 2.18±0.06c 2.46±0.08b 1.94±0.09d 65 4-甲基戊酸 酸刺味 0.12±0.01a 0.05±0.00d 0.07±0.00bc 0.07±0.00b – 0.06±0.00c 66 己酸 汗臭、干酪臭 31.29±1.44d 34.46±1.10c 37.45±1.30b 39.81±1.16b 42.6±1.31a 42.88±1.98a 67 庚酸 油脂腐臭 0.88±0.04a 0.45±0.01d 0.42±0.01d 0.83±0.02b 0.64±0.02c 0.25±0.01e 68 辛酸 汗臭、脂肪香 1.09±0.05b 0.31±0.01d 0.59±0.02c 1.4±0.04a 0.61±0.02c 0.35±0.02d 酸类物质总量 878.91±40.31d 1095.31±34.94c 1371.64±47.74b 1373.06±39.90b 1440.08±44.18b 1729.23±79.67a 醛酮类 69 乙醛* 果香、青香 138.83±6.37a 99.62±3.18b 90.14±3.14c 89.97±2.61c 79.45±2.44d 69.74±3.21e 70 乙缩醛* 芳香 99.16±4.55d 129.5±4.13c 170.27±5.93b 199.94±5.81a 168.83±5.18b 179.33±8.26b 71 2-庚酮 梨香 – 0.21±0.01a 0.05±0.00c 0.08±0.00b – – 72 3-羟基-2-丁酮 – – 0.03±0.00a 0.03±0.00a – 0.03±0.00a – 73 异戊醛二乙基缩醛 – 0.25±0.01d 0.77±0.02b – 0.52±0.02c 0.86±0.03a – 74 3-乙氧基丙醛 – 0.09±0.00c 0.09±0.00c 0.01±0.00e 0.06±0.00d 0.12±0.00b 0.14±0.01a 75 壬醛 青香、蜡香 0.15±0.01c 0.19±0.01a 0.14±0.00c 0.11±0.00d 0.16±0.00b 0.10±0.00e 76 苯甲醛 果香、杏仁香 0.35±0.02d 0.36±0.01d 0.45±0.02c 0.50±0.01b 0.52±0.02b 0.79±0.04a 醛酮类物质总量 238.83±10.95cd 230.76±7.36d 261.10±9.09b 291.18±8.46a 249.98±7.67bc 250.09±11.52bc 酚类 77 4-甲基苯酚 皮革臭、动物臭 0.11±0.01a 0.07±0.00b 0.06±0.00c 0.03±0.00e 0.04±0.00d 0.02±0.00f 78 4-乙基苯酚 马厩臭、来苏水臭 – 0.08±0.00d 0.14±0.00b 0.17±0.00a 0.13±0.00b 0.09±0.00c 79 4-乙基愈创木酚 果香、花香、烟味 – 0.02±0.00e 0.07±0.00d 0.13±0.00c 0.21±0.01a 0.17±0.01b 酚类物质总量 0.11±0.01e 0.17±0.01d 0.27±0.01c 0.33±0.01b 0.38±0.01a 0.28±0.01c 其他类 80 丙二醇甲醚 – 0.2±0.01b 0.28±0.01a 0.16±0.01d 0.28±0.01a 0.16±0.01d 0.18±0.01c 81 甲基磺酰氯 – – 0.04±0.00c 0.08±0.00b 0.03±0.00d 0.03±0.00d 0.1±0.00a 82 环己胺,N-(苯甲酰
氧基)– 0.2±0.01b 0.19±0.01b 0.11±0.00e 0.14±0.00d 0.16±0.00c 0.24±0.01a 83 (2,2-二乙氧基乙基)-苯 – 0.32±0.01a 0.31±0.01a 0.05±0.00e 0.27±0.01b 0.25±0.01c 0.16±0.01d 84 己酸酐 – 0.04±0.00c – – 0.08±0.00b 0.09±0.00a – 85 2-乙氧丙烷 – 0.35±0.02a 0.13±0.00c 0.1±0.00d – – 0.17±0.01b 其他类物质总量 1.11±0.05a 0.94±0.03b 0.51±0.02e 0.80±0.02c 0.69±0.02d 0.85±0.04c 注:表中结果为均值±标准差,同行不同字母表示不同样品之间存在显著性差异(P<0.05);“-”表示未查询到或检测到;“*”表示采用GC-FID定量的物质,“&”表示UPLC定量的物质,未标注表示采用SPME-GC-MS定量的物质。 表 3 GC-IMS分析不同年份凤香型基酒挥发性物质
Table 3. Analysis of volatile compounds in different years-stored Fengxiang crude liquor by GC-IMS
类别 序号 中文名称 分子式 保留指数
(RI)保留时间
(s)漂移时间
(ms)相对百分含量(%) A(0) B(2) C(3) D(5) E(7) F(9) 酯类 1 γ-丁内酯 C4H6O2 1678.6 1489.375 1.31075 0.13±0.01b 0.15±0.02ab 0.15±0.03ab 0.18±0.01a 0.17±0.01ab 0.17±0.01a 2 辛酸乙酯(单体) C10H20O2 1459 1088.527 1.48501 2.22±0.17d 2.51±0.05c 2.13±0.05d 2.73±0.03b 2.96±0.06a 2.66±0.04b 辛酸乙酯(二聚体) 1458.3 1087.109 2.03741 1.00±0.11c 1.38±0.13b 0.98±0.08c 1.50±0.06b 1.78±0.08a 1.43±0.06b 3 己酸丁酯 C10H20O2 1428 1031.792 1.46797 0.57±0.06b 0.78±0.02a 0.84±0.04a 0.31±0.02d 0.32±0.01cd 0.37±0.03c 4 丁酸己酯 C10H20O2 1403.1 986.405 1.47649 0.2±0.02b 0.22±0.01a 0.19±0.00bc 0.17±0.00cd 0.16±0.00d 0.24±0.01a 5 乳酸乙酯(单体) C5H10O3 1353.4 895.63 1.14232 0.96±0.07c 0.87±0.10c 1.13±0.02b 1.25±0.05a 1.09±0.05b 1.17±0.01ab 乳酸乙酯(二聚体) 1353.4 895.63 1.54128 0.31±0.08b 0.3±0.10b 0.49±0.06a 0.54±0.07a 0.36±0.04b 0.48±0.01a 6 庚酸乙酯(单体) C9H18O2 1341 872.936 1.41682 1.26±0.08cd 1.48±0.02a 1.22±0.00d 1.34±0.01b 1.32±0.01bc 1.32±0.01bc 庚酸乙酯(二聚体) 1341.7 874.355 1.91807 1.40±0.07c 2.39±0.12a 1.39±0.10c 1.80±0.04b 1.76±0.04b 1.79±0.05b 7 己酸丙酯 C9H18O2 1325.4 844.569 1.40829 0.29±0.02b 0.36±0.01a 0.35±0.01a 0.24±0.00c 0.15±0.00d 0.26±0.01c 8 乙酸庚酯 C9H18O2 1358 904.14 1.97774 0.04±0.00e 0.06±0.01d 0.04±0.01e 0.08±0.00c 0.09±0.00b 0.10±0.01a 9 己酸乙酯(单体) C8H16O2 1243.8 717.316 1.34171 4.37±0.13b 4.40±0.06b 4.42±0.11b 4.52±0.07b 4.80±0.05a 4.50±0.05b 己酸乙酯(二聚体) 1243.1 716.369 1.79855 26.66±0.02e 26.97±0.17d 27.3±0.11c 27±0.08d 29.53±0.08a 27.77±0.03b 10 丁酸丁酯 C8H16O2 1224.9 690.79 1.81987 0.41±0.02b 0.73±0.02a 0.73±0.02a 0.22±0.01d 0.18±0.00e 0.27±0.00c 11 己酸甲酯 C7H14O2 1195.2 649.107 1.67977 0.15±0.01d 0.19±0.00b 0.24±0.00a 0.10±0.00e 0.19±0.00b 0.17±0.01c 12 戊酸乙酯 C7H14O2 1143.7 561.951 1.68129 9.24±0.12c 9.30±0.06c 9.77±0.07b 9.96±0.04a 9.27±0.06c 9.74±0.07b 13 乙酸异戊酯 C7H14O2 1131 540.162 1.75134 1.97±0.05b 1.36±0.03e 1.60±0.00d 1.87±0.03c 1.59±0.01d 2.18±0.02a 14 乙酸戊酯 C7H14O2 1167.5 602.687 1.74525 0.12±0.00e 0.15±0.01cd 0.16±0.01c 0.20±0.00b 0.14±0.00d 0.22±0.00a 15 乙酸丁酯 C6H12O2 1083.6 466.446 1.6205 1.26±0.01b 1.32±0.05a 1.19±0.00c 0.30±0.01d 0.18±0.01e 0.29±0.02d 16 丁酸乙酯 C6H12O2 1041.5 418.139 1.55813 8.02±0.06b 8.00±0.10b 8.37±0.07a 8.36±0.07a 8.04±0.02b 8.33±0.05a 17 乙酸异丁酯 C6H12O2 1019.8 393.268 1.61571 0.53±0.03a 0.45±0.01bc 0.46±0.00b 0.55±0.02a 0.42±0.01c 0.46±0.02b 18 乙酸丙酯 C5H10O2 986.2 359.31 1.47657 0.52±0.01b 0.60±0.01a 0.48±0.00c 0.49±0.01c 0.20±0.00e 0.35±0.01d 19 异丁酸乙酯 C6H12O2 975.6 352.136 1.56173 0.97±0.09c 1.23±0.02b 1.43±0.01a 0.99±0.01c 0.94±0.00c 1.20±0.03b 20 丙酸乙酯 C5H10O2 963 343.527 1.45378 1.25±0.03e 1.43±0.01d 1.19±0.02f 2.48±0.01a 1.84±0.01c 2.02±0.02b 21 乙酸乙酯 C4H8O2 898.9 300.003 1.33984 9.06±0.04a 8.63±0.05b 8.56±0.06b 7.65±0.04c 7.63±0.04c 6.37±0.03d 22 甲酸乙酯 C3H6O2 856 270.828 1.22349 0.31±0.03a 0.24±0.00b 0.14±0.01c 0.15±0.00c 0.12±0.00d 0.24±0.00b 23 3-甲基丁酸乙酯 C7H14O2 1073.6 454.967 1.65409 0.04±0.01c 0.04±0.00c 0.04±0.00c 0.05±0.00b 0.03±0.00c 0.09±0.00a 总酯 73.25±0.94c 75.54±0.18a 74.99±0.06a 75.03±0.14a 75.24±0.11a 74.22±0.11b 醇类 24 己醇(单体) C6H14O 1365.8 918.324 1.33157 1.38±0.03a 1.26±0.02b 1.26±0.03b 0.87±0.04c 0.86±0.01c 0.90±0.02c 己醇(二聚体) 1364.7 916.26 1.64779 0.62±0.06a 0.5±0.02b 0.46±0.00b 0.2±0.01c 0.17±0.00c 0.22±0.01c 25 异戊醇 C5H12O 1216.8 679.422 1.49856 6.58±0.36ab 5.68±0.05d 5.99±0.01c 6.32±0.02b 5.88±0.01cd 6.82±0.05a 26 丁醇 C4H10O 1151.5 575.214 1.38282 2.45±0.21a 2.19±0.06b 2.1±0.02b 1.44±0.02c 1.44±0.03c 1.42±0.03c 27 异丁醇 C4H10O 1099.5 486.055 1.36143 3.07±0.16b 2.68±0.06c 2.77±0.01c 3.18±0.01ab 3.08±0.03b 3.29±0.01a 28 异丙醇 C3H8O 979.1 354.527 1.09155 0.07±0.01e 0.06±0.01e 0.15±0.00c 0.16±0.00b 0.28±0.01a 0.09±0.00d 39 丙醇 C3H8O 1055.2 433.922 1.24508 0.08±0.01c 0.1±0.00b 0.1±0.00b 0.12±0.00a 0.12±0.00a 0.12±0.00a 30 乙醇 C2H6O 936.9 325.83 1.13593 7.55±0.13a 7.17±0.07cd 7.43±0.05ab 7.08±0.03d 7.27±0.04c 7.40±0.04b 总醇 21.8±0.93a 19.64±0.21bc 20.26±0.03b 19.37±0.11c 19.1±0.11c 20.25±0.14b 酸类 31 乙酸 C2H4O2 1515.3 1191.268 1.1524 0.11±0.01a 0.1±0.01a 0.09±0.00ab 0.09±0.01ab 0.08±0.00b 0.08±0.00b 醛酮类 32 苯甲醛 C7H6O 1580.8 1310.868 1.15819 0.09±0.01c 0.1±0.01bc 0.1±0.01abc 0.09±0.01bc 0.11±0.01ab 0.11±0.00a 33 3-甲硫基丙醛 C4H8OS 1508.5 1178.772 1.09253 0.06±0.01ab 0.06±0.01ab 0.04±0.01c 0.07±0.01ab 0.07±0.00a 0.05±0.00bc 34 2,6-二甲基-4-庚酮 C9H18O 1198.5 653.844 1.78789 0.05±0.00d 0.07±0.00c 0.05±0.00d 0.11±0.00a 0.11±0.01a 0.10±0.01b 35 2-庚酮 C7H14O 1190.7 642.476 1.62495 0.06±0.01b 0.06±0.00b 0.05±0.00bc 0.05±0.01c 0.07±0.00a 0.08±0.00a 36 己醛 C6H12O 1076.9 458.793 1.54614 0.04±0.00bc 0.04±0.00c 0.05±0.00bc 0.05±0.01b 0.08±0.00a 0.04±0.00c 37 戊酮 C5H10O 994.6 365.05 1.37342 0.56±0.03a 0.40±0.00d 0.34±0.00e 0.32±0.00e 0.48±0.00b 0.43±0.01c 38 戊醛 C5H10O 991.8 363.137 1.4262 0.30±0.01a 0.30±0.00a 0.24±0.00b 0.24±0.00b 0.14±0.00d 0.20±0.01c 39 3-甲基丁醛 C5H10O 923.5 316.743 1.4058 0.32±0.01d 0.33±0.00d 0.32±0.01d 0.40±0.01c 0.50±0.02b 0.65±0.01a 40 丁醛 C4H8O 909.5 307.177 1.28946 0.45±0.02d 0.45±0.00d 0.46±0.01d 0.88±0.00b 0.5±0.00c 0.92±0.01a 41 2-甲基丙醛 C4H8O 846.8 264.61 1.28466 0.51±0.04a 0.51±0.00a 0.52±0.04a 0.44±0.01b 0.53±0.00a 0.52±0.00a 42 丙酮 C3H6O 849.6 266.523 1.11554 1.05±0.05ab 1.03±0.00b 0.95±0.03c 1.09±0.00a 0.97±0.01c 0.78±0.01d 43 丁酮 C4H8O 856.7 271.306 1.06397 0.11±0.00d 0.12±0.00c 0.14±0.00b 0.12±0.00c 0.11±0.00d 0.16±0.00a 44 丙醛(单体) C3H6O 836.3 257.436 1.05437 0.23±0.00a 0.22±0.00b 0.22±0.00b 0.21±0.00c 0.20±0.00d 0.21±0.00c 丙醛(二聚体) 836.3 257.436 1.14553 0.30±0.00c 0.31±0.00b 0.21±0.00e 0.36±0.00a 0.26±0.00d 0.31±0.01b 45 双乙酰 C5H8O2 1061.5 441.097 1.31825 0.33±0.07a 0.32±0.06a 0.37±0.01a 0.36±0.04a 0.38±0.02a 0.39±0.01a 总醛酮 4.47±0.01c 4.33±0.05d 4.06±0.05e 4.78±0.03b 4.52±0.01c 4.94±0.04a 其他类 46 异戊烷 C5H12 1488.9 1143.071 1.53282 0.15±0.01d 0.17±0.01d 0.16±0.01d 0.21±0.01c 0.26±0.01b 0.29±0.01a 47 二丙基硫醚 C6H14S 1077.3 459.272 1.15392 0.23±0.01d 0.22±0.02d 0.44±0.01c 0.52±0.01b 0.80±0.01a 0.23±0.00d 总其他 0.38±0.02e 0.39±0.02e 0.61±0.02c 0.72±0.02b 1.06±0.01a 0.52±0.01d 注:表中结果为均值±标准差,同行不同字母表示不同样品之间存在显著性差异(P<0.05)。 -
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