Ultrasound-assisted extraction of bioactive compounds from palm pressed fiber with high antioxidant and photoprotective activities

Prá, Valéria Dal; Lunelli, Felipe C.; Vendruscolo, Raquel Guidetti; Martins, Rafael; Wagner, Róger; Lazzaretti, Ayres P.; Freire, Denise Maria Guimarães; Alexandri, Maria; Koutinas, Apostolis; Mazutti, Márcio A.; Rosa, Marcelo Barcellos da

doi:10.1016/j.ultsonch.2016.12.021

Cited by 30 publications

(18 citation statements)

References 29 publications

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“…In comparation with the results obtained in the present work, Dal Prá et al. (2017) found lower antioxidant activity by DPPH method (50–63 μmol of Trolox g −1 ) in the UAE from palm pressed fiber. On the contrary, similar value to FRAP method was reported by Vieira, Cavalcanti, Meireles, and Hubinger (2013) in the extract obtained by UAE from the pulp fruits of Jussara palm (323.69 μmol of Trolox g −1 ).…”

Section: Resultssupporting

confidence: 89%

Ultrasound‐assisted extraction of phenolic compounds and soluble sugars from the stem portion of peach palm

Donadone

Giombelli²,

Silva³

et al. 2020

J Food Process Preserv

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The aim of this work was to investigate the ultrasound‐assisted extraction (UAE) of total phenolic compounds (TPC) and soluble sugars (SS) from the by‐product of peach palm (stem portion). The effect of the processing variables temperature (30–60°C), time (15–45 min), and power density (8.47–25.42 mW cm−3) were evaluated. The maximum contents (dry basis) of TPC (345.81 ± 2.82 mg gallic acid equivalent 100 g−1) and SS (16.68 ± 0.24 g 100 g−1) were obtained, respectively, at 60°C, 30 min and 8.47 mW cm−3 (condition 1) and 60°C, 45 min and 25.42 mW cm−3; in these conditions, the extracts had higher sucrose content than glucose and fructose. The highest content of phenolic acids (gallic, coumaric, vanillic, ferulic, trans‐cinnamic) and highest antioxidant activity were obtained in the condition 1. UAE can be considered an effective method for the extraction of TPC and SS from peach palm stem. Practical applications The ultrasound‐assisted extraction (UAE) was applied in the by‐product of heart‐of‐palm (stem portion) to the removal of phenolic compounds and soluble sugars. To realize this process with time and energy economy, the maximized condition of extraction observed at 60°C, 30 min, and 8.47 mW cm−3 was the most interesting. This extract showed the highest content of phenolic compounds and highest antioxidant potential, which can allow its application to preserve the shelf life of food products or to produce food supplements. The soluble sugars extracted can also be used, as example, in fermentative process. Therefore, the results indicate the viability of UAE to offer alternatives to utilization of stem portion of peach palm.

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Section: Resultssupporting

confidence: 89%

Ultrasound‐assisted extraction of phenolic compounds and soluble sugars from the stem portion of peach palm

Donadone

Giombelli²,

Silva³

et al. 2020

J Food Process Preserv

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“…The application of ultrasound, as well as the extraction of β‐carotene and tocopherols, favored the production of more concentrated products in phytosterols in relation to SE ( p < .05), as observed by Heleno et al (), Silva, Santos Garcia, Arroyo, and Silva () and Chanioti and Tzia () for UAE of sterols from mushroom, radish, and olive, respectively. Dal Prá et al () evaluated the effect of ultrasound on the removal of β‐sitosterol from palm pressed fiber and reported higher levels of this compound with the increase of the ultrasound intensity from 120 to 180 W cm −2 .…”

Section: Resultsmentioning

confidence: 99%

Pumpkin (Cucurbita maxima) by‐products: Obtaining seed oil enriched with active compounds from the peel by ultrasonic‐assisted extraction

Massa

Stevanato

Cardozo‐Filho

et al. 2019

J Food Process Engineering

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Ultrasonic-assisted extraction (UAE) of the oil from the seeds/peel mixture of pumpkin using ethanol as solvent was investigated. The effects of the ultrasound, solvent volume, time, and temperature on the oil yield were evaluated. Oil extraction from the seeds by ultrasound and the mixture by Soxhlet extraction (SE) was also performed. The use of ultrasound and higher availability of ethanol (up to 6 mL g −1 sample) favored the oil removal. In the extraction kinetics, the washing step was verified in the first 20 min, corresponding to 79-89% of the total oil yield. The diffusion coefficient increased from 30 to 75 C, as well as the spontaneity of the extraction, achieving 71% of the SE. Linoleic and oleic acids were found in higher concentrations in the oils. UAE made possible the greater extraction of β-carotene, tocopherols, and fistosterois, and the peel addition provided higher contents of these compounds.

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“…Furthermore, to the best of our knowledge, this is the first scientific study that has indicated that UAE can be used for the recuperation of phenolic compounds from red corn cobs. This technique has been successfully used in the extraction of phenolic antioxidants from other cellulosic plant materials, which requires aggressive conditions to disrupt their structure in order to improve the contact of the solvent with the cell wall and to generate the ultrasonic cavitation phenomenon [ 17 ]. Thus, the use of GRAS solvents and emerging technologies as UAE allow us to obtain bioactive compounds with antioxidant activity, as described below.…”

Section: Resultsmentioning

confidence: 99%

UPLC-ESI-QTOF-MS2-Based Identification and Antioxidant Activity Assessment of Phenolic Compounds from Red Corn Cob (Zea mays L.)

et al. 2018

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In this study, the extraction of phenolic antioxidants from red corn cob was carried out using ultrasound-assisted extraction (UAE). The solid:liquid ratio and extraction time were evaluated when obtaining these bioactive compounds. The total phenolic contents were evaluated using the Folin Ciocalteu method, while the antioxidant activity was measured by ABTS•+ and DPPH• assays. The amount of phenolic compounds ranged from 215.17 ± 33.49 to 527.33 ± 103.79 GAE mg/100 g and, overall, high solid:liquid ratios and time periods release more phenolic compounds. Moreover, the red corn cob extracts showed higher radical scavenging capacity according to the results obtained using the ABTS•+ technique compared to the DPPH• test. The coupling of liquid chromatography and mass spectrometry assay allowed the determination of 11 phenolic compounds, including phenolic acids and flavonoids. Thus, our results demonstrated for the first time the potential of red corn cob as a source of bioactive compounds, which might be included in food and pharmacological preparations.

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Ultrasound-assisted extraction of bioactive compounds from palm pressed fiber with high antioxidant and photoprotective activities

Cited by 30 publications

References 29 publications

Ultrasound‐assisted extraction of phenolic compounds and soluble sugars from the stem portion of peach palm

Ultrasound‐assisted extraction of phenolic compounds and soluble sugars from the stem portion of peach palm

Pumpkin (Cucurbita maxima) by‐products: Obtaining seed oil enriched with active compounds from the peel by ultrasonic‐assisted extraction

UPLC-ESI-QTOF-MS2-Based Identification and Antioxidant Activity Assessment of Phenolic Compounds from Red Corn Cob (Zea mays L.)

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