2017
DOI: 10.1007/s00216-017-0309-7
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Abstract: This contribution proposes an enzyme-assisted eco-friendly process for the extraction of non-extractable polyphenols (NEPPs) from black tea leftover (BTLO), an underutilized tea waste. BTLO hydrolyzed with various enzyme formulations was extracted using supercritical carbon dioxide and ethanol as co-solvent (SC-CO + EtOH). A conventional solvent extraction (CSE) was performed using EtOH + HO (80:20, v/v) for comparison purposes. The results revealed that hydrolysis of BTLO with 2.9% (w/w) kemzyme at 45 °C and … Show more

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Cited by 57 publications
(34 citation statements)
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“…J. Food Technol., Campinas, v. 22, e2017222, 2019 | https://doi.org/10.1590/1981-6723.22217 3/10 conventional methods (Mushtaq et al, 2017). The aim of this research was to evaluate the best reaction time, temperature, enzyme concentration and pH to obtain polyphenols for industrial use from green yerba mate, using enzyme-assisted extraction as an alternative to conventional solvent extraction.…”
Section: Introductionmentioning
confidence: 99%
“…J. Food Technol., Campinas, v. 22, e2017222, 2019 | https://doi.org/10.1590/1981-6723.22217 3/10 conventional methods (Mushtaq et al, 2017). The aim of this research was to evaluate the best reaction time, temperature, enzyme concentration and pH to obtain polyphenols for industrial use from green yerba mate, using enzyme-assisted extraction as an alternative to conventional solvent extraction.…”
Section: Introductionmentioning
confidence: 99%
“…selectively [74]. Various kinds of oils [75][76][77][78][79][80] and phenolic compounds [81][82][83][84][85][86] in NPs, which have certain activities, were also could be extracted effectively by CO 2 SFE when the related factors were optimized.…”
Section: Supercritical Fluid Extractionmentioning
confidence: 99%
“…The plant EOs contain various biologically active compounds in different concentrations (Abbas et al, ; Gull et al, ; Hussain et al, ). In order to evaluate antioxidant potential of plant products, the biologically active compounds/antioxidant bioactives should be isolated by appropriate methods based upon their chemical composition and nature (Mushtaq et al, ; Qadir et al, ). The traditional chemical means employed for the identification of bioaactive molecules in EOs are costly and time‐consuming and generally unable to indicate synergism and antagonism effects of the active compounds.…”
Section: Computational Studies On Mentha Chemical Compoundsmentioning
confidence: 99%