ArticleFood analytical methods2024
Impact of Cold Atmospheric Plasma Pretreatment on the Recovery of Phenolic Antioxidants from Spent Coffee Grounds.
Article in Food analytical methods, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed.
- Atmospheric Room Temperature Plasma Pretreatment Enhances Pulsed Electric Field Extraction of Phenolic Compounds from Hemp Leaves: Response Surface Modeling and Stability Assessment in a Model Vinegar System.Molecules (Basel, Switzerland) · 2026Article
- Converting Food Waste into Value-Added Products: A Review on Current Technologies, Challenges, and Future Perspectives.Foods (Basel, Switzerland) · 2026Review
- Effect of Atmospheric Room Temperature Plasma on the Volatile Profile of Laurel: Optimization by HS-SPME/GC-MS Analysis with Application in a Ready-to-Use Broth Model.Foods (Basel, Switzerland) · 2026Article
- Upcycling Spent Coffee Grounds: Approaches, Emerging Concepts and Applications.Foods (Basel, Switzerland) · 2026Review
- Atmospheric Room Temperature Plasma as a Green Pretreatment Strategy for Enhanced Phytochemical Extraction fromFoods (Basel, Switzerland) · 2025Article
- Advanced extraction of Glycyrrhiza glabra root extract using a combined ultrasonic and cold plasma reactor.Scientific reports · 2025Article
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Authors and funding
6 authors.
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Abstract
In the present study, cold atmospheric plasma (CAP) was employed as a pretreatment method for the extraction of phenolic compounds from spent coffee grounds (SCGs). The impact of CAP treatment conditions, i.e., thickness of the SCGs layer (mm), distance between the plasma source and the SCGs layer (mm) and duration of CAP treatment (min), on the total phenol content, in vitro antioxidant activity, as well as caffeine and chlorogenic acid content of SCGs, was investigated. The process parameters were optimized with the aid of response surface methodology (RSM). After optimizing the CAP pretreatment conditions, the CAP-treated SCGs were subjected to ultrasound-assisted extraction using ethanol as the extraction solvent. The optimum conditions for CAP treatment identified, i.e., thickness, 1 mm; distance, 16 mm; and duration, 15 min, led to a significant enhancement in the recovery of bioactive compounds from SCGs compared to those obtained from untreated SCGs. Total phenolic content and antioxidant activity significantly increased (i.e., TPC from 19.0 ± 0.7 to 24.9 ± 1.4 mg GAE/100 g dry SCGs, A
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