Abstract
The development of jujube brandy is restricted severely by excessive methanol production. Three methods to reduce methanol production were compared: fermentation material, boil and storage container. Boil treatment showed the best result, reducing methanol from 1.77 to 0.21 g/L, which was chosen for further analysis for comparing aroma compounds. Boil treatment increased ester, acids, and hydrocarbons; decreased alcohols, aldoketones, and terpenoids. The largest changes were seen in esters, hydrocarbons, and terpenoids. A pilot test of Boil treatment was performed. Results from the pilot test were consistent with laboratory results, with a significant decrease in methanol from 7.69 to 0.54 g/L. During the pilot test, methanol levels were measured in each fermentation layer and no significant difference was seen. Methanol levels were also measured in different distillation times. The foreshot had the highest concentration of methanol and the feint had the lowest concentration of methanol. Therefore, boil treatment combined with appropriate distillation will effectively solve the problem of excessive methanol production.
Funding statement: This research was supported by the National Natural Science Foundation of China: 1. The Research of Methanol and Fusel Oil Formation Mechanism and Control Measures in Traditional Chinese Jujube Brandy (Funding No. 31171725). 2. Study on the flavor character and its formation mechanism of Chinese date brandy (Funding No. 31371815). 3. China Scholarship Council (201508130082).
Conflict of interest
This article has no conflict of interest.
Abbreviations
- BT
Boil treatment
- TB
Traditional brewing
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Articles in the same Issue
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- The Effects of Amyloglucosidase, Glucose Oxidase and Hemicellulase Utilization on the Rheological Behaviour of Dough and Quality Characteristics of Bread
- Studies of Boil Treatment on Methanol Control and Pilot Factory Test of Jujube Brandy
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Articles in the same Issue
- Articles
- The Effects of Amyloglucosidase, Glucose Oxidase and Hemicellulase Utilization on the Rheological Behaviour of Dough and Quality Characteristics of Bread
- Studies of Boil Treatment on Methanol Control and Pilot Factory Test of Jujube Brandy
- Modeling of Tea Infusion Kinetics Incorporating Swelling Kinetics
- The Influence of Refractance Window Drying on Qualitative Properties of Kiwifruit Slices
- Multiple Parameter Optimizations for Enhanced Biosynthesis of Exo-polygalacturonase Enzyme and its Application in Fruit Juice Clarification
- Sugarcane Juice Clarification by Hydrogen Peroxide: Predictions with Artificial Neural Networks
- The Stress-Relaxation Behavior of Rice as a Function of Time, Moisture and Temperature
- Impacts of Explosion Puffing Drying Combined with Hot-Air and Freeze Drying on the Quality of Papaya Chips
- Pulverization Using Liquid Nitrogen Significantly Improves Physical Properties of Powder and Extraction Yield of Polysaccharides of Astragalus mongholicus
- Use of Iranian Milkweed Seed Oil to Increase Oxidative Stability of Olive Cultivar Roghani Oil