An eco-friendly and sustainable system for monitoring the oleuropein-rich extract from olive tree (Olea europaea) leaves

Yücel, Merve; Şahın, Selin

doi:10.1007/s13399-021-01556-0

Cited by 13 publications

(17 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Several lactic acid‐based DESs were prepared by mixing and heating procedure 24 . Lactic acid was used as hydrogen bond acceptor (HBA) and ethylene glycol as hydrogen bond donor (HBD) depending on previous success of these materials for the extraction of polyphenols from various biomasses.…”

Section: Methodsmentioning

confidence: 99%

“…The individual polyphenols (hesperidin, naringin, and p ‐coumaric acid) of the lemon peel extracts were quantified by Agilent 1260 chromatographic equipment (Agilent, Waldbronn, Germany). The detailed information on high‐performance liquid chromatography (HPLC) method for the quantification was reported in our earlier papers 24,27 …”

Section: Methodsmentioning

confidence: 99%

“…Several lactic acid-based DESs were prepared by mixing and heating procedure. 24 Lactic acid was used as hydrogen bond acceptor (HBA)…”

Section: Preparation Of Lactic Acid-based Desmentioning

confidence: 99%

“…Additionally, a bio‐based solvent known as deep eutectic solvent (DES) was prepared and integrated into the concerned AMSE system. Carboxylic acid‐based DESs were prepared with several molar ratios of ethylene glycol 24 . After the best mixture was decided according to the highest TPC yield, the extraction was continued by the most successful DES.…”

Section: Introductionmentioning

confidence: 99%

“…Carboxylic acid-based DESs were prepared with several molar ratios of ethylene glycol. 24 After the best mixture was decided according to the highest TPC yield, the extraction was continued by the most successful DES.…”

mentioning

confidence: 99%

See 4 more Smart Citations

Highly clean recovery of natural antioxidants from lemon peels: Lactic acid‐based automatic solvent extraction

Toprakçı

Şahın

2022

Phytochemical Analysis

Self Cite

View full text Add to dashboard Cite

Introduction Food industry generates large amounts of waste by‐products rich in natural antioxidants. On the other hand, application of advanced processes for the recovery of these fine chemicals is another popular topic of recent years. Objective The purpose of this study is to propose a green extraction method by application of deep eutectic solvent‐based automated solvent extraction (AMSE) from lemon peels. Methods The primary polyphenols (hesperidin, naringin, and p‐coumaric acid) and the total polyphenols of the lemon peel extract were quantified and used as response for the optimisation of the AMSE conditions. The Box–Behnken design type of the response surface method (RSM) was chosen for optimisation study. Scavenging activity of the lemon peel extract against 2,2‐diphenyl‐1‐picrylhydrazil (DPPH) free radical was also measured in vitro. Results The optimum conditions for the highest total phenolic (7.47 mg‐gallic acid equivalent [GAE]/g‐lemon peel [LP]), naringin (5.05 mg/g‐LP), p‐coumaric acid (3.27 mg/g‐LP), and hesperidin (0.07 mg/g‐LP) yields were obtained by 1.5 h of extraction time, 46% water (v/v), and 5 g of peel. The antioxidant activity changed between 37.31% and 94.10% in the peels. Conclusions Extraction time was the most effective process factor for the total phenolic and p‐coumaric acid yields, while water addition was statistically very important (p < 0.0001) for the naringin and hesperidin yields in the current AMSE system. The second‐order models generated for the selected systems represent the data satisfyingly based on the high coefficients of determination (> 0.99), statistically significant p‐values (<0.0001), coefficient of variation values (< 10%), and non‐significant lack‐of‐fit values (p > 0.05).

show abstract

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

“…Several lactic acid-based DESs were prepared by mixing and heating procedure. 24 Lactic acid was used as hydrogen bond acceptor (HBA)…”

Section: Preparation Of Lactic Acid-based Desmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

See 3 more Smart Citations

Highly clean recovery of natural antioxidants from lemon peels: Lactic acid‐based automatic solvent extraction

Toprakçı

Şahın

2022

Phytochemical Analysis

Self Cite

View full text Add to dashboard Cite

show abstract

Sustainable Extraction of Hydroxytyrosol from Olive Leaves Based on a Nature‐Inspired Deep Eutectic Solvent (NADES)

Messa,

Giotta,

Troisi

et al. 2024

ChemistrySelect

View full text Add to dashboard Cite

Within the circular economy framework, the valorisation of olive leaves as an effective source of organic compounds rather than an agricultural waste, represents a great opportunity. Olive leaves contain bioactive polyphenols, such as the health‐enhancing catechol hydroxytyrosol (HT), derived primarily from oleuropein. This study establishes a novel and sustainable approach for the extraction of HT from olive leaves, utilizing eco‐friendly deep eutectic solvents derived from natural sources (NADES). By optimizing the extraction process, the study highlights the efficacy of the eutectic mixture cholinium/glycerol (1:2 mol/mol) in achieving HT‐rich extracts from olive leaves (0.12 ± 0.03 g HT/g of dry extract). Indeed, the method demonstrates a remarkable yield of HT, reaching 12.3 ± 0.9 g/kg of leaf powder, under optimized conditions. The antioxidant properties of the extract are thoroughly assessed, suggesting its potential health benefits. Significantly, the study underscores the scalability of the extraction method, showcasing its viability for large‐scale production while maintaining excellent outcomes. Furthermore, the sustainability of the extraction method is boosted by the reuse of NADES across multiple extraction cycles, enhancing resource efficiency and reducing environmental impact. This research unlocks the potential of olive leaves as a valuable source of bioactive compounds and outlines a sustainable extraction approach aligning with the principles of the circular economy.

show abstract

Valorization of peach (Prunus persica L.) waste into speciality products via green methods

Şahın

Bilgin

2021

Biomass Conv. Bioref.

View full text Add to dashboard Cite

An eco-friendly and sustainable system for monitoring the oleuropein-rich extract from olive tree (Olea europaea) leaves

Cited by 13 publications

References 28 publications

Highly clean recovery of natural antioxidants from lemon peels: Lactic acid‐based automatic solvent extraction

Highly clean recovery of natural antioxidants from lemon peels: Lactic acid‐based automatic solvent extraction

Sustainable Extraction of Hydroxytyrosol from Olive Leaves Based on a Nature‐Inspired Deep Eutectic Solvent (NADES)

Valorization of peach (Prunus persica L.) waste into speciality products via green methods

Contact Info

Product

Resources

About