Changes in volatile organic compounds (VOCs) during storage for Myrica rubra‘Dongkui’
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摘要: 为探讨杨梅 Myrica rubra果实在储藏过程中释放挥发性有机化合物(VOCs)的变化,采用热脱附-气相色谱-质谱联用技术(TDS-GC-MS)测定了储藏过程中东魁杨梅Myrica rubra Dongkui果实释放VOCs的成分和相对含量。结果表明:杨梅果实释放的VOCs中共检测出62种化合物,包括萜烯类、酯类、醇类、醛类、酮类和其他烃等6类,其中,石竹烯是杨梅果实释放VOCs的主要成分,其相对含量占VOCs总量的47.06%;在储藏过程中,萜烯类化合物相对含量变化较大,在储藏4 d时达到最高(95.91%),石竹烯相对含量占萜烯类总量的62.74%;醛类化合物相对含量在采摘当天最高,其中糠醛和正己醛含量较高,是醛类的主要成分,随后不断下降;醇类化合物相对含量先下降后上升,在储藏6 d达到最高,为5.80%。图3表1参23
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关键词:
- 经济林学 /
- 杨梅 /
- 果实储藏 /
- 挥发性有机化合物 /
- 热脱附-气相色谱-质谱联用技术
Abstract: To determine changes in volatile organic compounds (VOCs) during storage for fruits of Myrica rubra,the composition and relative content of VOCs were analyzed using thermo desorption system-gas chromatography-mass spectrum (TDS-GC-MS). Results showed that M. rubra emitted 62 types of VOCs,mainly as terpenoids,esters,alcohols,aldehydes,and ketones,in which caryophyllene was the main compound with a relative content of 47.06%. The relative content of terpenoids showed a great difference during storage. After 4 days storage,the relative content of terpenoids was highest (95.91%) with the relative content of caryophyllene accounting for 62.74%. Measuring on the same day as picking,the relative content of aldehydes was highest with furfural and hexanal being the main components,but these decreased during storage. Alcohols first decreased and then increased with a relative content on the 6th day storage 5.80%.[Ch,3 fig. 1 tab. 23 ref.]-
Key words:
- cash forestry /
- Myrica rubra /
- fruit storage /
- VOCs /
- TDS-GC-MS
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链接本文:
https://zlxb.zafu.edu.cn/article/doi/10.11833/j.issn.2095-0756.2012.01.024
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