High pressure phase equilibrium of the crude green coffee oil – CO2 – ethanol system and the oil bioactive compounds

Quality attributes of roasted Arabica coffee oil extracted by pressing: composition, antioxidant activity, sun protection factor and other physical and chemical parameters

“…Some authors have reported higher palmitic acid contents, followed by linoleic acid (Rocha et al, 2013;Hurtado-Benavides et al, 2016). Cornelio-Santiago et al, (2017) and Bitencourt et al, (2018) described a predominance of linoleic, palmitic, oleic, and stearic acids in green coffee oil obtained by supercritical extraction.…”

“…Quantification was performed by external standardization using duplicate 6-point analytical curves. Sensory attributes related to each volatile compound, based on those described in literature (Akiyama et al, 2007, Belitz et al, 2009. Dulsat-Serra et al, 2016, Toledo et al, 2016, and Kalschne et al, 2018, were also reported ( Table 5).…”

“…It also contributes to coffee brew viscosity (Pacetti et al, 2015). Triacylglycerols are the main components of coffee oil (about 75%), which also presents from 15 to 18% of the unsaponifiable matter (UM) (Speer and Kölling-Speer, 2006), composed of hydrocarbons, steroids, and tocopherols (Belitz et al, 2009). It has a high proportion of UM compared to other vegetable oils (0.2 -1.5 %), such as soybean (from 0.6 to 1.2%), olive (from 0.4 to 1.1%), and sunflower (from 0.3 to 1.2 %) (Belitz et al, 2009).…”

“…In general, researches focus on specific classes of compounds, such as fatty acids and volatile compounds (Oliveira et al, 2005;Calligaris et al, 2009;Budryn et al, 2012;Getachew and Chun, 2016;Hurtado-Benavides et al, 2016;Raba et al, 2018). Less information is available on UM compounds -such as diterpenes and tocopherols-and on the presence of hydrosoluble components, which could be carried during pressing, such as caffeine and chlorogenic acids (González et al, 2001;Oliveira et al, 2014;Guercia et al, 2016;Bitencourt et al, 2018).…”

Analysis of the Application Potential of Coffee Oil as an Ilmenite Flotation Collector

“…Coffee grounds are rich in fats, sugars, and proteins, of which coffee oil is 14% or more [2,3]. The use of coffee grounds as a raw material for extracting surfactants, such as coffee oil [3,4], biodiesel [5], and polyphenols [3,6], has been reported. These surfactants are mainly used in energy [4,7,8], skin care [9][10][11], and as food additives [12][13][14].…”