Pressurized liquid extraction of polyphenols from Goldenberry: Influence on antioxidant activity and chemical composition

Extraction of Flavonoids From Natural Sources Using Modern Techniques

“…That is a particular part it improves the penetration phenomenon of the liquid phase in the solid matrix (Mustafa and Turner, 2011 ). In literature, it is possible to find several studies that report that pressures above of 100 bar increase the PLE yield, from a different matrix, for instance, goldenberry, grape marc, citrus by-products, passion fruit rinds, Lippia citriodora leaves (Viganó et al, 2016 ; Barrales et al, 2018 ; Corazza et al, 2018 ; Leyva-Jiménez et al, 2018 ; Pereira et al, 2019 ). However, in the case of flavonoid glycosides and aglycones, such as quercetin, luteolin, apigenin, narirutin, naringin, etc., it is possible to obtain high extraction yields at pressures low as 30 bar (Kamali et al, 2016 ; Cvetanović et al, 2018 ; Munir et al, 2018 ).…”

“…Higher flow rates result in shorter residence times of analytes, as well as the rapid extraction of compounds extracted from the plant matrix (Plaza and Turner, 2015 ; Lachos-Perez et al, 2018 ). The majority of PLE works use relatively low flow rates (Kamali et al, 2016 ; Corazza et al, 2018 ; Pereira et al, 2019 ) because phenomenologically the desorption and diffusion of the solvent within the pores of the plant matrix used in the extraction process (Plaza and Turner, 2015 ). Some studies in the literature report flow rates of 0.2, 0.4, 0.6, 0.8, 1 mL/min (Kamali et al, 2016 ), others report flows of 1.0, 2.0, and 3.0 mL/min for pressurized liquid extraction (PLE) for goldenberry, passion fruit rinds, citrus by-products (Viganó et al, 2016 ; Barrales et al, 2018 ; Corazza et al, 2018 ).…”

“…If the solubility of the compounds in the solvent is limited, the flow velocity must be varied, in the manner of reducing the residence time of the components soluble in water at high temperature, this increase in the flow rate is more effective in terms of using lower amounts of solvent. A study conducted in 2018 reported an extraction time of 60 min for PLE of polyphenols from Goldenberry (Corazza et al, 2018 ). Another study used a similar extraction time and obtained high yield for PLE of β-glucans and phenolic compounds (Benito-Román et al, 2015 ).…”

Polyphenols from Stevia rebaudiana (Bertoni) leaves and their functional properties

“…The conventional extraction methods, such as maceration and Soxhlet extraction, consume large volumes of organic solvent and long extraction time, providing lower efficiency (Poojary et al, 2017). To overcome the shortcoming, pressurized liquid extraction (PLE) (Corazza et al, 2018), microwave-assisted extraction (MAE) (Asofiei, Calinescu, Trifan, David, & Gavrila, 2016), ultrasound-assisted extraction (UAE) (Kumari, Tiwari, Hossain, Rai, & Brunton, 2017), pulsed electric field-assisted extraction (PEF) (Peiró, Luengo, Segovia, Raso, & Almajano, 2017), and supercritical-fluid extraction (Porto & Natolino, 2017) have been studied for polyphenol extraction, but most of them are rarely applied in industry due to various reasons. Among the extraction methods, compared to MAE and PLE, UAE is more reliable and practical for industry.…”

Antioxidants of Natural Plant Origins: From Sources to Food Industry Applications

“…There is an improvement of compounds’ solubilities and the desorption kinetics from the matrices [130]. This process has been used to extract several bioactive natural compounds, such as essential oil from peppermint [107], polyphenols from goldenberry [109], carotenoids from carrot by-products [108] and phenolic compounds from a large variety of plant materials (e.g., Goji berry, feijoa peel, grape marc, spent coffee grinds and olive pomace) [25,110,111,112,113].…”