Abstract
The conversion of plant byproducts, which are phenolic-rich substrates, to valuable co-products by implementing non-conventional extraction techniques is the need of the hour. In the current study, ultrasound- (UAE) and microwave-assisted extraction (MAE) were applied for the recovery of polyphenols from peach byproducts. Two-level screening and Box–Behnken design were adopted to optimize extraction efficiency in terms of total phenolic content (TPC). Methanol:water 4:1% v/v was the extraction solvent. The optimal conditions of UAE were 15 min, 8 s ON-5 s OFF, and 35 mL g−1, while MAE was maximized at 20 min, 58 °C, and 16 mL g−1. Regarding the extracts’ TPC and antioxidant activity, MAE emerged as the method of choice, whilst their antiradical activity was similar in both techniques. Furthermore, a liquid chromatography–tandem mass spectrometry (LC-MS/MS) method was developed and validated to determine chlorogenic acid and naringenin in byproducts’ extracts. 4-Chloro-4′-hydroxybenzophenone is proposed as a new internal standard in LC-MS/MS analysis in foods and byproducts. Chlorogenic acid was extracted in higher yields when UAE was used, while MAE favored the extraction of the flavonoid compound, naringenin. To conclude, non-conventional extraction could be considered as an efficient and fast alternative for the recovery of bioactive compounds from plant matrices.
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Claims 9
Claim · model-written summary
The optimal ultrasound-assisted extraction (UAE) conditions were 15 min, 8 s ON-5 s OFF, and 35 mL g−1.
- Taxon
- peach
Prunus persicae0 - Outcome
- optimal conditions of UAEe1
- Value
- 15 mine1
- Qualifier
- 8 s ON-5 s OFF, and 35 mL g−1e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“from peach byproducts”
e1“The optimal conditions of UAE were 15 min, 8 s ON-5 s OFF, and 35 mL g−1”
Claim · model-written summary
Microwave-assisted extraction (MAE) was maximized at 20 min, 58 °C, and 16 mL g−1.
- Taxon
- peachPrunus persicae0
- Treatment
- MAEe2
- Outcome
- maximizede2
- Value
- 20 mine2
- Qualifier
- 58 °C, and 16 mL g−1e2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“from peach byproducts”
e2“while MAE was maximized at 20 min, 58 °C, and 16 mL g−1”
Claim · model-written summary
MAE emerged as the method of choice for total phenolic content and antioxidant activity of peach byproduct extracts.
- Taxon
- peachPrunus persicae0
- Treatment
- MAEe3
- Outcome
- TPC and antioxidant activitye3
- Direction
- emergede3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“from peach byproducts”
e3“Regarding the extracts’ TPC and antioxidant activity, MAE emerged as the method of choice”
Claim · model-written summary
The antiradical activity of peach byproduct extracts was similar for both extraction techniques.
- Taxon
- peachPrunus persicae0
- Treatment
- both techniquese4
- Outcome
- antiradical activitye4
- Direction
- similare4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“from peach byproducts”
e4“whilst their antiradical activity was similar in both techniques”
Claim · model-written summary
A liquid chromatography–tandem mass spectrometry method was developed and validated to determine chlorogenic acid and naringenin in peach byproduct extracts.
- Taxon
- peachPrunus persicae0
- Outcome
- determine chlorogenic acid and naringenine5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“from peach byproducts”
e5“a liquid chromatography–tandem mass spectrometry (LC-MS/MS) method was developed and validated to determine chlorogenic acid and naringenin in byproducts’ extracts”
Claim · model-written summary
4-Chloro-4′-hydroxybenzophenone is proposed as a new internal standard for LC-MS/MS analysis of foods and byproducts.
- Taxon
- peachPrunus persicae0
- Compound
- 4-Chloro-4′-hydroxybenzophenonee6
- Outcome
- new internal standarde6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“from peach byproducts”
e6“4-Chloro-4′-hydroxybenzophenone is proposed as a new internal standard in LC-MS/MS analysis in foods and byproducts”
Claim · model-written summary
Chlorogenic acid was extracted in higher yields by UAE than by MAE.
- Taxon
- peachPrunus persicae0
- Treatment
- UAEe7
- Outcome
- Chlorogenic acid was extracted in higher yieldse7
- Direction
- highere7
- Comparator
- MAEe7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“from peach byproducts”
e7“Chlorogenic acid was extracted in higher yields when UAE was used, while MAE favored the extraction of the flavonoid compound, naringenin”
Claim · model-written summary
MAE favored the extraction of naringenin over UAE.
- Taxon
- peachPrunus persicae0
- Treatment
- MAEe7
- Outcome
- extraction of the flavonoid compound, naringenine7
- Direction
- favorede7
- Comparator
- UAEe7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“from peach byproducts”
e7“Chlorogenic acid was extracted in higher yields when UAE was used, while MAE favored the extraction of the flavonoid compound, naringenin”
Claim · model-written summary
Non-conventional extraction is proposed as an efficient and fast alternative for recovering bioactive compounds from plant matrices.
Verbatim
e7“non-conventional extraction could be considered as an efficient and fast alternative for the recovery of bioactive compounds from plant matrices”
The same questions in other papers
processing · quality: phytochemicals · Prunus persica (peach)Positive and negative results
2 papers in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
- positive
Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.