Aroma Substances of Flue-cured Tobacco ‘Yujinxiang No.1’

doi:10.11924/j.issn.1000-6850.casb2021-0780

Abstract

Abstract:

The comparative analysis of the aroma substances’ contents of ‘Yujinxiang No.1’ and the control, ‘Yunyan 87’ and ‘K326’, was carried out to improve the cultivation technologies of ‘Yujinxiang No.1’ and the application of the cultivar in cigarette manufacturing industry. The middle part of tobacco leaves (C3F) of ‘Yujinxiang No.1’, ‘Yunyan 87’ and ‘K326’ in Wushan County of Chongqing were collected, and the aroma substances in leaves were determined by gas chromatography-mass spectrometry. 70 kinds of aroma substances or latent aroma substances were detected in the samples. The contents of terpenoids, aldehydes and ketones in ‘Yujinxiang No.1’ were slightly lower than those in ‘Yunyan 87’ and ‘K326’. The contents of nitrogen heterocycles and phenols were slightly higher than those in ‘Yunyan 87’ and ‘K326’. The contents of alcohols, esters and acids in ‘Yujinxiang No.1’ were lower than those of ‘Yunyan 87’, but higher than those of ‘K326’. The proportion of aroma substances of ‘Yujinxiang No.1’ in the total amount of detected aroma or latent aroma substances was 23.48%, higher than that of ‘Yunyan 87’ (22.74%) and ‘K326’ (17.98%), which was conducive to the rapid degradation and production of aroma substances during aging. The proportion of neophytadiene in ‘Yujinxiang No.1’ to the total amount of aroma substances was lower than that of ‘Yunyan 87’ and ‘K326’, which was beneficial to reducing the irritation of flue gas and coordinating the odor. The ratio of furan compound content to neophytodien content of ‘Yujinxiang No.1’ was higher than that of the control, the amount of aroma substances produced by carotenoids degradation of ‘Yujinxiang No.1’ was 5.92% and 5.22% higher than that of ‘Yunyan 87’ and ‘K326’ respectively, and the amount of leaf exudate degradation products or derivates of ‘Yujinxiang No.1’ was 34.310 µg/g, higher than that of ‘Yunyan 87’ (32.996 µg/g) and ‘K326’ (32.490 µg/g), which was conducive to showing the aroma characteristics of the cultivar. In summary, high content of aroma substances and coordinated chemical composition result in good aroma quality of flue-cured tobacco cultivar ‘Yujinxiang No.1’.

Key words: flue-cured tobacco, cultivar, ‘Yujinxiang No.1’, aroma substances, tobacco leaf, quality

CLC Number:

S572

ZHOU Dong, ZHANG Yan, LV Jun, ZHANG Jiankui, DENG Kexuan, ZONG Xuefeng, DAI Xiumei. Aroma Substances of Flue-cured Tobacco ‘Yujinxiang No.1’[J]. Chinese Agricultural Science Bulletin, 2022, 38(19): 146-151.

Figures/Tables 5

References 29

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致香或潜香成分类别	检测数量/个	成分含量/(µg/g)
致香或潜香成分类别	检测数量/个	云烟87	渝金香1号	K326
醛、酮类	33	67.035	62.399	65.025
醇类	7	47.307	40.070	31.156
酯类	7	15.445	8.615	7.577
酸类	2	12.679	3.306	1.273
氮杂环类	10	3.417	3.948	3.395
呋喃类	7	3.407	3.372	3.137
酚类	3	2.292	2.722	2.197
萜烯类	1	514.952	405.445	519.014
合计	70	666.534	529.877	632.774

致香或潜香成分类别	检测数量/个	成分含量/(µg/g)
致香或潜香成分类别	检测数量/个	云烟87	渝金香1号	K326
醛、酮类	33	67.035	62.399	65.025
醇类	7	47.307	40.070	31.156
酯类	7	15.445	8.615	7.577
酸类	2	12.679	3.306	1.273
氮杂环类	10	3.417	3.948	3.395
呋喃类	7	3.407	3.372	3.137
酚类	3	2.292	2.722	2.197
萜烯类	1	514.952	405.445	519.014
合计	70	666.534	529.877	632.774

品种	致香物质占测出物质总量的比例	潜香物质占测出物质总量的比例
云烟87	22.74	77.26
渝金香1号	23.48	76.52
K326	17.98	82.02

品种	致香物质占测出物质总量的比例	潜香物质占测出物质总量的比例
云烟87	22.74	77.26
渝金香1号	23.48	76.52
K326	17.98	82.02

品种	新植二烯/(µg/g)	植物呋喃类/(µg/g)	新植二烯/致香物质/%	植物呋喃类/新植二烯/%
云烟87	514.952	3.407	77.48	0.66
渝金香1号	405.445	3.472	76.82	0.86
K326	519.014	3.137	82.31	0.60