Ultrasound-Assisted Extraction of Applewood Polyphenols at Lab and Pilot Scales
This study focused on the extraction of polyphenols from applewood using ultrasonic-assisted extraction (UAE). First, the influence of solvent composition and mass–volume (m:v) ratio on the extraction yield was studied at a lab scale (200 mL). Overall, a ratio of 1:33 (m:v) resulted in a higher yiel...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-08-01
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| Series: | Foods |
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| Online Access: | https://www.mdpi.com/2304-8158/12/17/3142 |
| _version_ | 1797582570615996416 |
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| author | Hannes Withouck Axel Paelinck Imogen Foubert Ilse Fraeye |
| author_facet | Hannes Withouck Axel Paelinck Imogen Foubert Ilse Fraeye |
| author_sort | Hannes Withouck |
| collection | DOAJ |
| description | This study focused on the extraction of polyphenols from applewood using ultrasonic-assisted extraction (UAE). First, the influence of solvent composition and mass–volume (m:v) ratio on the extraction yield was studied at a lab scale (200 mL). Overall, a ratio of 1:33 (m:v) resulted in a higher yield of polyphenols. Furthermore, both a higher yield of polyphenols and higher antioxidant capacity were detected in the extracts produced in the presence of a 30 <i>v</i>/<i>v</i> % ethanol mixture compared to pure water; a further increase in ethanol did not improve the extraction yield. Second, under the optimal conditions (30 <i>v</i>/<i>v</i> % ethanol–water; 1:33 and 1:20 (m:v)), the UAE technique was applied at a pilot scale (100 L). At 1:33 (m:v), the polyphenol yield was lower at the pilot scale compared to the lab scale; by contrast, at 1:20 (m:v), production at the pilot scale resulted in a higher yield compared to the lab scale. To identify and quantify individual polyphenols, HPLC-PDA analyses were performed. Phloridzin appears to be the major identified compound. Finally, the UAE process was compared to a conventional solid–liquid extraction technique, showing that a significantly higher yield could be obtained with UAE. |
| first_indexed | 2024-03-10T23:24:14Z |
| format | Article |
| id | doaj.art-f6cb454d85b94c75a019776811fe5c0f |
| institution | Directory Open Access Journal |
| issn | 2304-8158 |
| language | English |
| last_indexed | 2024-03-10T23:24:14Z |
| publishDate | 2023-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Foods |
| spelling | doaj.art-f6cb454d85b94c75a019776811fe5c0f2023-11-19T08:07:36ZengMDPI AGFoods2304-81582023-08-011217314210.3390/foods12173142Ultrasound-Assisted Extraction of Applewood Polyphenols at Lab and Pilot ScalesHannes Withouck0Axel Paelinck1Imogen Foubert2Ilse Fraeye3Biochemical Innovation Team Odisee (BIT-O), Department Chemistry, University College Odisee, Gebroeders De Smetstraat 1, 9000 Ghent, BelgiumBiochemical Innovation Team Odisee (BIT-O), Department Chemistry, University College Odisee, Gebroeders De Smetstraat 1, 9000 Ghent, BelgiumResearch Unit Food & Lipids, KU Leuven Kulak, E. Sabbelaan 53, 8500 Kortrijk, BelgiumMeat Technology & Science of Protein-rich Foods (MTSP), Department M2S, Leuven Food Science and Nutrition Research Centre (LFoRCe), KU Leuven—Ghent, Gebroeders De Smetstraat 1, 9000 Ghent, BelgiumThis study focused on the extraction of polyphenols from applewood using ultrasonic-assisted extraction (UAE). First, the influence of solvent composition and mass–volume (m:v) ratio on the extraction yield was studied at a lab scale (200 mL). Overall, a ratio of 1:33 (m:v) resulted in a higher yield of polyphenols. Furthermore, both a higher yield of polyphenols and higher antioxidant capacity were detected in the extracts produced in the presence of a 30 <i>v</i>/<i>v</i> % ethanol mixture compared to pure water; a further increase in ethanol did not improve the extraction yield. Second, under the optimal conditions (30 <i>v</i>/<i>v</i> % ethanol–water; 1:33 and 1:20 (m:v)), the UAE technique was applied at a pilot scale (100 L). At 1:33 (m:v), the polyphenol yield was lower at the pilot scale compared to the lab scale; by contrast, at 1:20 (m:v), production at the pilot scale resulted in a higher yield compared to the lab scale. To identify and quantify individual polyphenols, HPLC-PDA analyses were performed. Phloridzin appears to be the major identified compound. Finally, the UAE process was compared to a conventional solid–liquid extraction technique, showing that a significantly higher yield could be obtained with UAE.https://www.mdpi.com/2304-8158/12/17/3142UAEmass–volume ratiosolvent compositionbioactive compounds |
| spellingShingle | Hannes Withouck Axel Paelinck Imogen Foubert Ilse Fraeye Ultrasound-Assisted Extraction of Applewood Polyphenols at Lab and Pilot Scales Foods UAE mass–volume ratio solvent composition bioactive compounds |
| title | Ultrasound-Assisted Extraction of Applewood Polyphenols at Lab and Pilot Scales |
| title_full | Ultrasound-Assisted Extraction of Applewood Polyphenols at Lab and Pilot Scales |
| title_fullStr | Ultrasound-Assisted Extraction of Applewood Polyphenols at Lab and Pilot Scales |
| title_full_unstemmed | Ultrasound-Assisted Extraction of Applewood Polyphenols at Lab and Pilot Scales |
| title_short | Ultrasound-Assisted Extraction of Applewood Polyphenols at Lab and Pilot Scales |
| title_sort | ultrasound assisted extraction of applewood polyphenols at lab and pilot scales |
| topic | UAE mass–volume ratio solvent composition bioactive compounds |
| url | https://www.mdpi.com/2304-8158/12/17/3142 |
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