Secondary contamination of lactobacillus would evidently increase the content of isoamyl alcohol and ethyl caprylate and decrease the content of ethylaldehyde (lower than that in normal beer).
乳酸菌的二次污染使啤酒中异戊醇、辛酸乙酯显著升高，使乙醛含量明显低于正常的啤酒。
2
The 30 main compounds are bornyl acetate , salicylic aldehyde, diethyl malonate, ethyl linolenate, etc, which amount to 76.95 % content of the oil.
Three-tower continuous distillation process of ethyl acetate from aldehyde condensation and purification by gas-phase oxidation of acetic acid and ethylene were also discussed.