Preliminary Analysis of Aroma Components in Fruits of Different Geographical Sources of Fragaria nilgerrensis Schlecht

doi:10.3969/j.issn.1000-2561.2022.12.020

Abstract

Abstract:

Flavor improvement is one of the most important tasks in strawberry breeding. Fragaria nilgerrensis Schlecht has been widely concerned because of its special aroma components. There are abundant strawberry resources in southwest of China such as Sichuan, but the researches on its aroma components are not systematic. In this experiment, the aroma components of strawberry fruits from different geographical sources were analyzed. It could broaden the genetic background of cultivated strawberry and provide theoretical basis for innovative utilization of F. nilgerrensis Schlecht resources and breeding. In this study, headspace solid phase microextraction and gas chromatography-mass spectrometry (GC-MS) were used to analyze the differences of aroma components in six different geographical sources of F. nilgerrensis Schlecht. The results showed that a total of 89 aroma substances were detected. Different from the previously reported aroma components of cultivated strawberry, ester compounds did not account for the largest proportion in the other five geographical sources of F. nilgerrensis Schlecht, except Lijiang Yulong Snow Mountain. A total of 56 volatile substances with relative content greater than 1% were detected in this study, including 2 aldehydes, 19 hydrocarbons, 16 esters, 5 ketones, 4 alcohols, 5 amines and acids, and 5 other compounds. There were no common aroma components, and the aromatic components of F. nilgerrensis Schlecht were mainly esters and hydrocarbons, but they did not reach 50%. The aromatic components were mainly esters and hydrocarbons. The variety of aroma components of F. nilgerrensis Schlecht in Lijiang Yulong Snow Mountain was the most abundant, while that in Qinba Mountain of Wanyuan was the least. Among the aroma components measured, the first three with higher relative content were as follows: erythro-9,10-dibromopentacosane, dibutyl phthalate, benzeneethanamine. Cluster analysis and PCA analysis showed that the aroma components of F. nilgerrensis Schlecht in Yulong Snow Mountain of Lijiang were divided into a single cluster. Although they were both F. nilgerrensis Schlecht varieties, the aroma components were quite different due to geographical location and environmental characteristics. The influence of environment on the volatile compounds of strawberry needs further study.

Key words: headspace solid phase microextraction, gas chromatography-mass spectrometry (GC-MS), Fragaria nilgerrensis Schlecht, aroma

CLC Number:

S668.4

WANG Dong, CHEN lijuan, LI Hongwen, LIU Jia, ZAHNG Guowei, WANG Jianhui. Preliminary Analysis of Aroma Components in Fruits of Different Geographical Sources of Fragaria nilgerrensis Schlecht[J]. Chinese Journal of Tropical Crops, 2022, 43(12): 2576-2585.

Figures/Tables 6

References 25

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化合物类别 Compound category	攀枝花大黑山 Panzhihua Dahei Mountain	广安华蓥山 Guang’an Huaying Mountain	冕宁县灵山寺 Temple of Mian’ning Mountain	攀枝花冷水箐 Panzhihua Lengshuiqing	万源秦巴山 Wanyuan Qinba Mountain	丽江玉龙雪山 Lijiang Yulong Snow Mountain
醛类	0(0)	1(1.01%)	1(1.20%)	0(0)	0(0)	0(0)
烃类	5(12.79%)	3(13.8%)	2(2.54%)	4(12.37%)	2(3.07%)	3(16.85%)
酯类	5(17.96%)	3(6.60%)	2(10.29%)	1(1.18%)	3(3.61%)	6(12.86%)
酮类	1(1.31%)	1(1.75%)	1(1.19%)	0(0)	0(0)	2(3.21%)
醇类	1(1.37%)	1(1.41%)	0(0)	2(4.86%)	1(1.62%)	1(2.20%)
胺类和酸类	2(8.02%)	1(1.70%)	0(0)	3(7.94%)	1(1.34%)	1(2.01%)
其他类	0(0)	0(0)	2(4.90%)	1(1.57%)	0(0)	2(3.70%)
总计	14	10	6	10	7	13

化合物类别 Compound category	攀枝花大黑山 Panzhihua Dahei Mountain	广安华蓥山 Guang’an Huaying Mountain	冕宁县灵山寺 Temple of Mian’ning Mountain	攀枝花冷水箐 Panzhihua Lengshuiqing	万源秦巴山 Wanyuan Qinba Mountain	丽江玉龙雪山 Lijiang Yulong Snow Mountain
醛类	0(0)	1(1.01%)	1(1.20%)	0(0)	0(0)	0(0)
烃类	5(12.79%)	3(13.8%)	2(2.54%)	4(12.37%)	2(3.07%)	3(16.85%)
酯类	5(17.96%)	3(6.60%)	2(10.29%)	1(1.18%)	3(3.61%)	6(12.86%)
酮类	1(1.31%)	1(1.75%)	1(1.19%)	0(0)	0(0)	2(3.21%)
醇类	1(1.37%)	1(1.41%)	0(0)	2(4.86%)	1(1.62%)	1(2.20%)
胺类和酸类	2(8.02%)	1(1.70%)	0(0)	3(7.94%)	1(1.34%)	1(2.01%)
其他类	0(0)	0(0)	2(4.90%)	1(1.57%)	0(0)	2(3.70%)
总计	14	10	6	10	7	13

序号 No.	化合物名称 Compound name		攀枝花大黑山 Panzhihua Dahei Mountain	广安华蓥山 Guang’an Huaying Mountain	冕宁县灵山寺 Temple of Mian’ning Mountain	攀枝花冷水箐 Panzhihua Lengshuiqing	万源秦巴山 Wanyuan Qinba Mountain	丽江玉龙雪山 Lijiang Yulong Snow Mountain
	醛类 aldehydes
1	乙醛 acetaldehyde		-	1.01	-	-	-	-
2	癸醛 decanal		-	-	1.20	-	-	-
	烃类 hydrocarbon
3	2-碘-3-甲基-丁烷 butane, 2-iodo-3-methyl-		-	-	-	-	2.00	-
4	顺-1,1,3,4-四甲基环戊烷 cyclopentane, 1,1,3,4-tetramethyl-, cis-		2.88	-	-	-	-	-
5	十八碳甲基-环九硅氧烷 cyclononasiloxane, octadecamethyl-		-	-	-	4.11	-	-
序号 No.	化合物名称 Compound name		攀枝花大黑山 Panzhihua Dahei Mountain	广安华蓥山 Guang’an Huaying Mountain	冕宁县灵山寺 Temple of Mian’ning Mountain	攀枝花冷水箐 Panzhihua Lengshuiqing	万源秦巴山 Wanyuan Qinba Mountain	丽江玉龙雪山 Lijiang Yulong Snow Mountain
6	十二碳甲基-环六硅氧烷 cyclohexasiloxane, dodecamethyl-		-	-	1.09	-	-	-
7	2,6,10-三甲基-十二烷dodecane, 2,6,10-trimethyl-		1.68	-	-	-	-	-
8	7-[(四氢吡喃-2-基)氧代]-8-氨基-9-(1,3-苯并二噁唑-5-基)-1,4-二氧杂螺[4,5]癸烷1,4-dioxaspiro[4,5]decane, 7-[(tetrahydropyran- 2-yl)oxy]-8-amino-9-(1,3-benzodioxol-5-yl)-		-	-	-	-	-	1.49
9	赤藓-9,10-二溴二十五烷erythro-9,10-Dibromopentacosane		-	-	-	-	-	13.22
10	氟乙炔 ethyne, fluoro-		-	3.71	-	4.25	-	-
11	二十七烷 heptacosane		-	-	-	-	-	2.14
12	七甲基-3,3-二(三甲基甲硅烷氧基)四硅氧烷1,1,1,5,7,7,7- heptamethyl-3,3-bis(trimethylsiloxy)tetrasiloxane		-	-	1.45	2.78	-	-
13	3-二苯基-1-(三甲基硅杂氧基)1-庚烯1-heptene, 1,3-diphenyl- 1-(trimethylsilyloxy)-		-	-	-	-	1.02	-
14	3,7-二甲基-壬烷 nonane, 3,7-dimethyl-		-	1.02	-	-	-	-
15	九甲基-3-(三甲基甲硅烷氧基)四硅氧烷1,1,1,3,5,5,7,7,7-nonamethyl-3-(trimethylsiloxy)tetrasiloxane		-	9.05	-	-	-	-
16	2-甲氧基-1-戊烯1-pentene, 2-methoxy-		1.1	-	-	-	-	-
17	十五烷pentadecane		5.01	-	-	-	-	-
18	十六甲基-八硅氧烷octasiloxane, 1,1,3,3,5,5,7,7,9,9,11,11,13, 13,15,15-hexadecamethyl-		-	-	-	-	1.07	-
19	[[4-[1,2-二[(三甲基甲硅烷基)氧代]乙基]-1,2-亚苯基]二(氧代)]二[三甲基-硅烷]silane, [[4-[1,2-bis[(trimethylsilyl)oxy] ethyl]-1,2-phenylene]bis(oxy)]bis[trimethyl-		2.12	-	-	-	-	-
20	三甲基[5-甲基-2-(1-甲基乙基)苯氧基]-硅烷 silane, trimethyl[5-methyl-2-(1-methylethyl)phenoxy]-		-	-	-	1.23	-	-
21	癸甲基-四硅氧烷tetrasiloxane, decamethyl-		-	1.04	-	-	-	-
	酯类 esters
22	乙酸癸酯 acetic acid, decyl ester		-	-	-	-	1.27	-
23	乙酸二[(三甲基甲硅烷基)氧杂基]-三甲基甲硅烷基酯 acetic acid, bis[(trimethylsilyl)oxyl]-, trimethylsilyl ester		-	-	-	-	1.02	-
24	苯甲基丁基邻苯二甲酸酯benzyl butyl phthalate		-	-	-	-	-	2.09
25	苯乙酸α3,4-三[(三甲基甲硅烷基)氧代]-三甲基甲硅烷基酯benzeneacetic acid,.alpha.,3,4-tris[(trimethylsilyl)oxy]-, trimethylsilyl ester		3.46	-	-	-	-	-
26	2,6-双[(三甲基硅基)氧]苯甲酸三甲基硅基酯benzoic acid, 2,6-bis[(trimethylsilyl)oxy]-, trimethylsilyl ester		-	-	-	-	-	1.39
27	1,2-苯二羧酸二(2-甲基丙基)酯1,2-benzenedicarboxylic acid, bis(2-methylpropyl) ester		-	1.59	-	-	-	-
28	1,2-苯二羧酸二丙基酯 1,2-benzenedicarboxylic acid, dipropyl ester		-	-	-	1.18	-	-
29	1,2-苯二甲酸丁酯 1,2-benzenedicarboxylic acid, butyl octyl ester		-	-	-	-	-	2.50
30	1,2-苯二羧酸,丁基 8-甲基壬基酯1,2-benzenedicarboxylic acid, butyl 8-methylnonyl ester		-	-	-	-	-	2.27
31	1,2-苯二羧酸,丁基 2-甲基丙基酯1,2-benzenedicarboxylic acid, butyl 2-methylnonyl ester		-	-	-	-	-	2.23
序号 No.	化合物名称 Compound name		攀枝花大黑山 Panzhihua Dahei Mountain	广安华蓥山 Guang’an Huaying Mountain	冕宁县灵山寺 Temple of Mian’ning Mountain	攀枝花冷水箐 Panzhihua Lengshuiqing	万源秦巴山 Wanyuan Qinba Mountain	丽江玉龙雪山 Lijiang Yulong Snow Mountain
32		二丁基邻苯二甲酸酯 dibutyl phthalate	3.91	-	9.07	-	1.32	-
33		δ壬内酯delta nonalactone	2.49	-	-	-	-	-
34		2-氧己酸甲酯 hexanoic acid, 2-oxo-, methyl ester	-	1.75	-	-	-	-
35		n-十九烷酸,戊甲基二甲硅烷基酯 n-nonadecanoic acid, pentamethyldisilyl ester	-	-	1.22	-	-	2.38
36		戊酸,2,2,4-三甲基-3-羧基异丙基,异丁基酯pentanoic acid, 2,2,4-trimethyl-3-carboxyisopropyl, isobutyl ester	5.27	3.26	-	-	-	-
37		2,2,4-三甲基-1,3-戊二醇二异丁酸酯 2,2,4-trimethyl-1,3-pentanediol diisobutyrate	3.03	-	-	-	-	-
		酮类 ketone
38		6-叠氮甲基-5-溴-2-t-丁基-[1,3]二噁英-4-酮 6-azidomethyl-5-bromo-2-t-butyl-[1,3]dioxin-4-one	-	-	-	-	-	1.33
39		(E)-3-(6,6-二甲基-5-羰基-2-庚烯基)-环戊酮 (E)-cyclopentanone, 3-(6,6-dimethyl-5-oxo-2-heptenyl)-	-	-	-	-	-	1.88
40		3,5-二-三甲基甲硅烷基-2,4,6-环庚三烯-1-酮 2,4,6-cycloheptatrien-1-one, 3,5-bis-trimethylsilyl-	-	1.75	-	-	-	-
41		3-二十烷酮 3-eicosanone	-	-	1.19	-	-	-
42		6-(二甲氨基)-三嗪-3,5(2H,4H)-二酮 as-Triazine-3,5(2H,4H)-dione, 6-(dimethylamino)-	1.31	-	-	-	-	-
		醇类 alcohol
43		乙酸(E)-5-癸烯-1-醇 (E)-5-decen-1-ol, acetate,	-	1.41	-	-	1.62	-
44		5-甲基-2-(1-甲基乙基)-1-己醇 1-hexanol, 5-methyl-2-(1-methylethyl)-	-	-	-	-	-	2.20
45		(S)-噁丙环甲醇 oxiranemethanol, (S)-	-	-	-	2.11	-	-
46		(Z)-3,7-二甲基-乙酸酯,2,6-辛二烯-1-醇2,6-octadien-1-ol, 3,7-dimethyl-, acetate, (Z)-	1.37	-	-	2.75	-	-
		胺类和酸类 amines and acids
47		N-[(五氟苯基)亚甲基]-β,3,4-三[(三甲基甲硅烷基)氧代]-苯乙胺 benzeneethanamine, N-[(pentafluorophenyl)methylene]-beta,3,4-tris[(trimethylsilyl)oxy]-	6.95	1.70	-	1.22	1.34	-
48		草胺酰肼 semioxamazide	-	-	-	4.77	-	-
49		dl-丙氨酰-L-丙氨酸 dl-alanyl-l-alanine	-	-	-	1.95	-	-
50		2-氨基-咪唑-5-羧酸 imidazole-5-carboxylic acid, 2-amino-	1.07	-	-	-	-	-
51		2-(3-乙酰氧基-4,4,14-三甲基雄甾-8-烯-17-基)-丙酸propanoicacid, 2-(3-acetoxy-4,4,14-trimethylandrost-8-en- 17-yl)-	-	-	-	-	-	2.01
		其他类 other categories
52		1,3-二(三甲基甲硅烷基)苯 1,3-bis(trimethylsilyl)benzene	-	-	3.66	-	-	-
53		2-庚基-4-十八烷氧基甲基-1,3-二噁戊环 1,3-dioxolane, 2-heptyl-4-octadecyloxymethyl-	-	-	1.24	-	-	1.92
54		氧化亚硝 nitrous oxide	-	-	-	1.57	-	-
55		1-甲基-4-[4,5-二羟基苯基]-六氢吡啶hexahydropyridine, 1-methyl-4-[4,5-dihydroxyphenyl]-	-	-	-	-	-	1.78
56		氧 oxygen	-	1.39	-	-	-	-

序号 No.	化合物名称 Compound name		攀枝花大黑山 Panzhihua Dahei Mountain	广安华蓥山 Guang’an Huaying Mountain	冕宁县灵山寺 Temple of Mian’ning Mountain	攀枝花冷水箐 Panzhihua Lengshuiqing	万源秦巴山 Wanyuan Qinba Mountain	丽江玉龙雪山 Lijiang Yulong Snow Mountain
	醛类 aldehydes
1	乙醛 acetaldehyde		-	1.01	-	-	-	-
2	癸醛 decanal		-	-	1.20	-	-	-
	烃类 hydrocarbon
3	2-碘-3-甲基-丁烷 butane, 2-iodo-3-methyl-		-	-	-	-	2.00	-
4	顺-1,1,3,4-四甲基环戊烷 cyclopentane, 1,1,3,4-tetramethyl-, cis-		2.88	-	-	-	-	-
5	十八碳甲基-环九硅氧烷 cyclononasiloxane, octadecamethyl-		-	-	-	4.11	-	-
序号 No.	化合物名称 Compound name		攀枝花大黑山 Panzhihua Dahei Mountain	广安华蓥山 Guang’an Huaying Mountain	冕宁县灵山寺 Temple of Mian’ning Mountain	攀枝花冷水箐 Panzhihua Lengshuiqing	万源秦巴山 Wanyuan Qinba Mountain	丽江玉龙雪山 Lijiang Yulong Snow Mountain
6	十二碳甲基-环六硅氧烷 cyclohexasiloxane, dodecamethyl-		-	-	1.09	-	-	-
7	2,6,10-三甲基-十二烷dodecane, 2,6,10-trimethyl-		1.68	-	-	-	-	-
8	7-[(四氢吡喃-2-基)氧代]-8-氨基-9-(1,3-苯并二噁唑-5-基)-1,4-二氧杂螺[4,5]癸烷1,4-dioxaspiro[4,5]decane, 7-[(tetrahydropyran- 2-yl)oxy]-8-amino-9-(1,3-benzodioxol-5-yl)-		-	-	-	-	-	1.49
9	赤藓-9,10-二溴二十五烷erythro-9,10-Dibromopentacosane		-	-	-	-	-	13.22
10	氟乙炔 ethyne, fluoro-		-	3.71	-	4.25	-	-
11	二十七烷 heptacosane		-	-	-	-	-	2.14
12	七甲基-3,3-二(三甲基甲硅烷氧基)四硅氧烷1,1,1,5,7,7,7- heptamethyl-3,3-bis(trimethylsiloxy)tetrasiloxane		-	-	1.45	2.78	-	-
13	3-二苯基-1-(三甲基硅杂氧基)1-庚烯1-heptene, 1,3-diphenyl- 1-(trimethylsilyloxy)-		-	-	-	-	1.02	-
14	3,7-二甲基-壬烷 nonane, 3,7-dimethyl-		-	1.02	-	-	-	-
15	九甲基-3-(三甲基甲硅烷氧基)四硅氧烷1,1,1,3,5,5,7,7,7-nonamethyl-3-(trimethylsiloxy)tetrasiloxane		-	9.05	-	-	-	-
16	2-甲氧基-1-戊烯1-pentene, 2-methoxy-		1.1	-	-	-	-	-
17	十五烷pentadecane		5.01	-	-	-	-	-
18	十六甲基-八硅氧烷octasiloxane, 1,1,3,3,5,5,7,7,9,9,11,11,13, 13,15,15-hexadecamethyl-		-	-	-	-	1.07	-
19	[[4-[1,2-二[(三甲基甲硅烷基)氧代]乙基]-1,2-亚苯基]二(氧代)]二[三甲基-硅烷]silane, [[4-[1,2-bis[(trimethylsilyl)oxy] ethyl]-1,2-phenylene]bis(oxy)]bis[trimethyl-		2.12	-	-	-	-	-
20	三甲基[5-甲基-2-(1-甲基乙基)苯氧基]-硅烷 silane, trimethyl[5-methyl-2-(1-methylethyl)phenoxy]-		-	-	-	1.23	-	-
21	癸甲基-四硅氧烷tetrasiloxane, decamethyl-		-	1.04	-	-	-	-
	酯类 esters
22	乙酸癸酯 acetic acid, decyl ester		-	-	-	-	1.27	-
23	乙酸二[(三甲基甲硅烷基)氧杂基]-三甲基甲硅烷基酯 acetic acid, bis[(trimethylsilyl)oxyl]-, trimethylsilyl ester		-	-	-	-	1.02	-
24	苯甲基丁基邻苯二甲酸酯benzyl butyl phthalate		-	-	-	-	-	2.09
25	苯乙酸α3,4-三[(三甲基甲硅烷基)氧代]-三甲基甲硅烷基酯benzeneacetic acid,.alpha.,3,4-tris[(trimethylsilyl)oxy]-, trimethylsilyl ester		3.46	-	-	-	-	-
26	2,6-双[(三甲基硅基)氧]苯甲酸三甲基硅基酯benzoic acid, 2,6-bis[(trimethylsilyl)oxy]-, trimethylsilyl ester		-	-	-	-	-	1.39
27	1,2-苯二羧酸二(2-甲基丙基)酯1,2-benzenedicarboxylic acid, bis(2-methylpropyl) ester		-	1.59	-	-	-	-
28	1,2-苯二羧酸二丙基酯 1,2-benzenedicarboxylic acid, dipropyl ester		-	-	-	1.18	-	-
29	1,2-苯二甲酸丁酯 1,2-benzenedicarboxylic acid, butyl octyl ester		-	-	-	-	-	2.50
30	1,2-苯二羧酸,丁基 8-甲基壬基酯1,2-benzenedicarboxylic acid, butyl 8-methylnonyl ester		-	-	-	-	-	2.27
31	1,2-苯二羧酸,丁基 2-甲基丙基酯1,2-benzenedicarboxylic acid, butyl 2-methylnonyl ester		-	-	-	-	-	2.23
序号 No.	化合物名称 Compound name		攀枝花大黑山 Panzhihua Dahei Mountain	广安华蓥山 Guang’an Huaying Mountain	冕宁县灵山寺 Temple of Mian’ning Mountain	攀枝花冷水箐 Panzhihua Lengshuiqing	万源秦巴山 Wanyuan Qinba Mountain	丽江玉龙雪山 Lijiang Yulong Snow Mountain
32		二丁基邻苯二甲酸酯 dibutyl phthalate	3.91	-	9.07	-	1.32	-
33		δ壬内酯delta nonalactone	2.49	-	-	-	-	-
34		2-氧己酸甲酯 hexanoic acid, 2-oxo-, methyl ester	-	1.75	-	-	-	-
35		n-十九烷酸,戊甲基二甲硅烷基酯 n-nonadecanoic acid, pentamethyldisilyl ester	-	-	1.22	-	-	2.38
36		戊酸,2,2,4-三甲基-3-羧基异丙基,异丁基酯pentanoic acid, 2,2,4-trimethyl-3-carboxyisopropyl, isobutyl ester	5.27	3.26	-	-	-	-
37		2,2,4-三甲基-1,3-戊二醇二异丁酸酯 2,2,4-trimethyl-1,3-pentanediol diisobutyrate	3.03	-	-	-	-	-
		酮类 ketone
38		6-叠氮甲基-5-溴-2-t-丁基-[1,3]二噁英-4-酮 6-azidomethyl-5-bromo-2-t-butyl-[1,3]dioxin-4-one	-	-	-	-	-	1.33
39		(E)-3-(6,6-二甲基-5-羰基-2-庚烯基)-环戊酮 (E)-cyclopentanone, 3-(6,6-dimethyl-5-oxo-2-heptenyl)-	-	-	-	-	-	1.88
40		3,5-二-三甲基甲硅烷基-2,4,6-环庚三烯-1-酮 2,4,6-cycloheptatrien-1-one, 3,5-bis-trimethylsilyl-	-	1.75	-	-	-	-
41		3-二十烷酮 3-eicosanone	-	-	1.19	-	-	-
42		6-(二甲氨基)-三嗪-3,5(2H,4H)-二酮 as-Triazine-3,5(2H,4H)-dione, 6-(dimethylamino)-	1.31	-	-	-	-	-
		醇类 alcohol
43		乙酸(E)-5-癸烯-1-醇 (E)-5-decen-1-ol, acetate,	-	1.41	-	-	1.62	-
44		5-甲基-2-(1-甲基乙基)-1-己醇 1-hexanol, 5-methyl-2-(1-methylethyl)-	-	-	-	-	-	2.20
45		(S)-噁丙环甲醇 oxiranemethanol, (S)-	-	-	-	2.11	-	-
46		(Z)-3,7-二甲基-乙酸酯,2,6-辛二烯-1-醇2,6-octadien-1-ol, 3,7-dimethyl-, acetate, (Z)-	1.37	-	-	2.75	-	-
		胺类和酸类 amines and acids
47		N-[(五氟苯基)亚甲基]-β,3,4-三[(三甲基甲硅烷基)氧代]-苯乙胺 benzeneethanamine, N-[(pentafluorophenyl)methylene]-beta,3,4-tris[(trimethylsilyl)oxy]-	6.95	1.70	-	1.22	1.34	-
48		草胺酰肼 semioxamazide	-	-	-	4.77	-	-
49		dl-丙氨酰-L-丙氨酸 dl-alanyl-l-alanine	-	-	-	1.95	-	-
50		2-氨基-咪唑-5-羧酸 imidazole-5-carboxylic acid, 2-amino-	1.07	-	-	-	-	-
51		2-(3-乙酰氧基-4,4,14-三甲基雄甾-8-烯-17-基)-丙酸propanoicacid, 2-(3-acetoxy-4,4,14-trimethylandrost-8-en- 17-yl)-	-	-	-	-	-	2.01
		其他类 other categories
52		1,3-二(三甲基甲硅烷基)苯 1,3-bis(trimethylsilyl)benzene	-	-	3.66	-	-	-
53		2-庚基-4-十八烷氧基甲基-1,3-二噁戊环 1,3-dioxolane, 2-heptyl-4-octadecyloxymethyl-	-	-	1.24	-	-	1.92
54		氧化亚硝 nitrous oxide	-	-	-	1.57	-	-
55		1-甲基-4-[4,5-二羟基苯基]-六氢吡啶hexahydropyridine, 1-methyl-4-[4,5-dihydroxyphenyl]-	-	-	-	-	-	1.78
56		氧 oxygen	-	1.39	-	-	-	-