Difference Analysis of the Nonvolatile Organic Acids and Higher Organic Acids of the Different Leaf Position in Flue-cured Tobacco

doi:10.7668/hbnxb.2011.04.018

Abstract

Abstract: The pre-treatment of sulfuric acid methyl ester with gas chromatography-mass spectrometry(GC/MS) analysis techniques was utilized to study the difference of the organic acid content in different flue-cured tobacco leaf(L8-L12: from the bottom of the eighth leave up to the twelfth leave)and its influence on fluecured tobacco' quality.The results showed that malic acid,γ-e ketone acid,citric acid,malonic acid,linolenic acid and palmitic acid had a higher content relatively in different flue-cured tobacco leaves and they were the main acidic components,what's more,the difference between organic acids,malic acid and other organic acids content in different leaf was significantly obvious.The differencce of total organic acids content from the eighth to the twelfth leave was L8L9L12L10L11;The content proportion ranges of non-volatile acid,senior saturated fatty acid and senior unsaturated fatty acid in total organic acids were 88.49%-94.38%,3.01%-5.10% and 2.61%-6.40%,respectively.The difference analysis of organic acids content in different leaf position indicated that the organic acids content in the eighth and twelfth leaves was moderate and they could be considered as the superior and slap-up tobacco raw materials.

Key words: Flue-cured tobacco, Planting density, Apical regulator, Neutral aroma components

CLC Number:

S572．01

LU Zhong-xian, ZHAO Ming-qin, TUO Yang-yang, ZHANG Guang-fu, ZHANG Di. Difference Analysis of the Nonvolatile Organic Acids and Higher Organic Acids of the Different Leaf Position in Flue-cured Tobacco[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2011, 26(4): 104-110. doi: 10.7668/hbnxb.2011.04.018.

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