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Ultrason Sonochem

Title:		Effect of organic acid-soaking and sonication on the formation of volatile compounds and alpha-dicarbonyl compounds in Robusta coffee
Author(s):		Lee H; Yim J; Lee Y; Lee KG;
Address:		"Department of Food Science and Biotechnology, Dongguk University-Seoul, 32 Dongguk-ro, Ilsandong-gu, Goyang-si, Gyeonggi-do 10326, Republic of Korea. Department of Food Science and Biotechnology, Dongguk University-Seoul, 32 Dongguk-ro, Ilsandong-gu, Goyang-si, Gyeonggi-do 10326, Republic of Korea. Electronic address: kwglee@dongguk.edu"
Journal Title:		Ultrason Sonochem
Year:		2023
Volume:		20230904
Issue:
Page Number:		106580 -
DOI:		10.1016/j.ultsonch.2023.106580
ISSN/ISBN:		1873-2828 (Electronic) 1350-4177 (Print) 1350-4177 (Linking)
Abstract:		"In this study, the effects of organic acid-soaking (malic, citric, tartaric, and succinic acid) and sonication on the formation of flavor and alpha-dicarbonyl compounds in Robusta (C. canephora syn. Coffea robusta) green beans were investigated. A total of 20 volatile compounds were identified in Robusta coffee. Furfural and 5-methyl furfural, two dominant volatile compounds in Arabica coffee, increased after organic acid pretreatment. In Robusta coffee processed from 3% malic acid-soaked coffee beans, furfural and 5-methyl furfural increased by 90.99% and 24.92%, respectively, compared to the control. In Robusta coffee processed from 3% malic acid-sonicated (280 W, 1 h) coffee beans, furfural and 5-methyl furfural increased by 236.03% and 114.77%, respectively. alpha-Dicarbonyls (glyoxal, methylglyoxal, and diacetyl) were significantly (p < 0.05) decreased in all Robusta coffees after organic acid pretreatment. In Robusta coffee processed from coffee beans soaked and sonicated in tartaric acid solution, the alpha-dicarbonyls decreased by up to 44% and 58%, respectively, compared to the control. This study suggested the pretreatment methods to enhance the flavor substances and reduce the alpha-DCs in Robusta coffee"
Keywords:		*Coffea Sonication Furaldehyde Malates Organic Chemicals Coffee Organic acid Ultrasound sonication Volatile compounds alpha-Dicarbonyl;
Notes:		"MedlineLee, Haeun Yim, Jonggab Lee, Youngji Lee, Kwang-Geun eng Netherlands 2023/09/07 Ultrason Sonochem. 2023 Oct; 99:106580. doi: 10.1016/j.ultsonch.2023.106580. Epub 2023 Sep 4"