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https://doi.org/10.5513/JCEA01/22.1.2703

Study of the volatile fraction of distillates with added donkey thistle (Onopordum acanthium L.) extracts

Dimitar DIMITROV ; Department of Selection, Enology and Chemistry, Institute of Viticulture and Enology, 1 Kala Tepe str., 5800 Pleven, Bulgaria
Albena PARZHANOVA ; Department of Nutrition and Tourism, University of Food Technologies, 26 Maritza Blvd., 4000 Plovdiv, Bulgaria
Snezhana IVANOVA ; Department of Nutrition and Tourism, University of Food Technologies, 26 Maritza Blvd., 4000 Plovdiv, Bulgaria

Puni tekst: engleski, pdf (697 KB) str. 96-103 preuzimanja: 31* citiraj
APA 6th Edition
DIMITROV, D., PARZHANOVA, A. i IVANOVA, S. (2021). Study of the volatile fraction of distillates with added donkey thistle (Onopordum acanthium L.) extracts. Journal of Central European Agriculture, 22 (1), 96-103. https://doi.org/10.5513/JCEA01/22.1.2703
MLA 8th Edition
DIMITROV, Dimitar, et al. "Study of the volatile fraction of distillates with added donkey thistle (Onopordum acanthium L.) extracts." Journal of Central European Agriculture, vol. 22, br. 1, 2021, str. 96-103. https://doi.org/10.5513/JCEA01/22.1.2703. Citirano 02.12.2021.
Chicago 17th Edition
DIMITROV, Dimitar, Albena PARZHANOVA i Snezhana IVANOVA. "Study of the volatile fraction of distillates with added donkey thistle (Onopordum acanthium L.) extracts." Journal of Central European Agriculture 22, br. 1 (2021): 96-103. https://doi.org/10.5513/JCEA01/22.1.2703
Harvard
DIMITROV, D., PARZHANOVA, A., i IVANOVA, S. (2021). 'Study of the volatile fraction of distillates with added donkey thistle (Onopordum acanthium L.) extracts', Journal of Central European Agriculture, 22(1), str. 96-103. https://doi.org/10.5513/JCEA01/22.1.2703
Vancouver
DIMITROV D, PARZHANOVA A, IVANOVA S. Study of the volatile fraction of distillates with added donkey thistle (Onopordum acanthium L.) extracts. Journal of Central European Agriculture [Internet]. 2021 [pristupljeno 02.12.2021.];22(1):96-103. https://doi.org/10.5513/JCEA01/22.1.2703
IEEE
D. DIMITROV, A. PARZHANOVA i S. IVANOVA, "Study of the volatile fraction of distillates with added donkey thistle (Onopordum acanthium L.) extracts", Journal of Central European Agriculture, vol.22, br. 1, str. 96-103, 2021. [Online]. https://doi.org/10.5513/JCEA01/22.1.2703

Sažetak
A study to determine the volatile fraction of distillates with added 50% and 70% ethanol extracts of donkey thistle (Onopordum acanthium L.) was conducted. The extracts were added to the pure distillate from the grapes of Melnik-55 grapevine variety in amounts of 20, 50, 80, 100, 200, 400 and 600 ml. The remaining amount to liter was a pure distillate. A distillate of Melnik-55 grapes (without extracts) was used as a control. The addition of 50% ethanol extract of Onopordum acanthium L. increased the total volatile composition of variants 1000:20 and 1000:50, in comparison to the control sample. Higher levels of esters and higher alcohols were found in the same variants. Incorporation of the 50% and 70% ethanol extracts of donkey thistle resulted in increased final total terpene content of the distillates. By increasing the amount of the added 50% ethanol extract, a reduction in the concentrations of acetaldehyde and ethyl acetate was found in the distillates. The basic ester in all the distillates analyzed was ethyl acetate, and the major higher alcohols were 2-methyl-1-butanol, 3-methyl-1-butanol, 1-propanol and 2-butanol. By applying of 50% and 70% ethanol extracts of the plant, a reduction in methanol content in the final distillates was observed. A prospect was the application of 50% ethanol extracts of Onopordum acanthium L, especially variants 1000:20 and 1000:50. This two variants showed higher final levels of aromatic compounds (beverage quality) and slightly higher final levels of terpenes (biological value) compared to the control. The other variants of this group had proven lower levels of methanol (improved toxicological quality) compared to the control.

Ključne riječi
volatile compounds; esters; higher alcohols; aldehydes; terpenes

Hrčak ID: 254964

URI
https://hrcak.srce.hr/254964

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