Green ultrasound-assisted extraction of chlorogenic acids from sweet potato peels and sonochemical hydrolysis of caffeoylquinic acids derivatives

Filho, Elenilson G. Alves; Sousa, Valéria M.; Rodrigues, Suelí; Brito, E. S. de; Fernandes, Fabiano Ándré Narciso

doi:10.1016/j.ultsonch.2019.104911

Cited by 40 publications

(43 citation statements)

References 29 publications

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“…The ultrasounds (US) technology has been also applied for the recovery of essential oils [42]. The use of ultrasounds has the advantage to be fast, simple and low cost [64], is based on milder extraction operative conditions [20]. The control and optimization of process parameters (e.g.…”

Section: Extraction Methods For An Efficient Recovery Of Limonenementioning

confidence: 99%

“…The control and optimization of process parameters (e.g. time, temperature, pressure, speed and power) makes this method useful not only for the limonene extraction but also for the selective extraction of different compounds from citrus and plants [64]. According to Aliaño-González et al the technique exploits the energy of ultrasounds for the extraction of different raw materials deriving organic [65].…”

Section: Extraction Methods For An Efficient Recovery Of Limonenementioning

confidence: 99%

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The Limonene Biorefinery: From Extractive Technologies to Its Catalytic Upgrading into p-Cymene

Satira¹,

Espro²,

Paone³

et al. 2021

Preprint

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A renewable cyclic monoterpene obtained from citrus peel, limonene is widely used as a fra-grance, nutraceutical ingredient, antibacterial, biopesticide, and green extraction solvent. Indus-trial demand largely exceeds supply. After reviewing recent advances in the recovery of limonene from citrus peel and residues with a particular attention to benign-by-design extractive processes, we focus on the latest results in its dehydrogenation to p-cymene via heterogeneous catalysis.

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Section: Extraction Methods For An Efficient Recovery Of Limonenementioning

confidence: 99%

Section: Extraction Methods For An Efficient Recovery Of Limonenementioning

confidence: 99%

The Limonene Biorefinery: From Extractive Technologies to Its Catalytic Upgrading into p-Cymene

Satira¹,

Espro²,

Paone³

et al. 2021

Preprint

View full text Add to dashboard Cite

show abstract

“…UAE is considered a green and sustainable technique, alternative to conventional extraction methods, because it is a time saving process that allows to reduce or eliminate toxic solvents consume and recover good amounts of the compounds of interest [ 33 ]. Other advantages consist in simple equipment, versatility, lower energy output, high extraction efficiency in a short time, and no thermal effect [ 43 , 83 ]. This last characteristic makes this method suitable for the extraction of polyphenols, including CGAs.…”

Section: Innovative Green Extraction Techniquesmentioning

confidence: 99%

“…Results indicated that ultrasonic amplitude (UA) had a positive and linear effect because extraction yield increased by increasing UA, even if UA had a less significant influence on extraction yield ( p value > 0.05) than ethanol concentration and temperature, probably because vegetable cells are already damaged by the oil extraction process, and therefore, the mechanical effect caused by ultrasound are less important. Interestingly, Alves Filho et al [ 83 ] performed a CGAs water extraction from potato peel focusing on the ultrasonic power density, namely the power transmitted per liter of solvent. Three different conditions were applied, i.e., 20, 35, and 50 W/L, and the milder conditions enhanced the extraction of 3,4-diCQA and 3,5-diCQA, but not of tri-CQAs, which partially hydrolyzed to 3,4-CQA.…”

Section: Innovative Green Extraction Techniquesmentioning

confidence: 99%

Recovery of Chlorogenic Acids from Agri-Food Wastes: Updates on Green Extraction Techniques

et al. 2021

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The agri-food sector produces a huge amount of agri-food wastes and by-products, with a consequent great impact on environmental, economic, social, and health aspects. The reuse and recycling of by-products represents a very important issue: for this reason, the development of innovative recovery and extraction methodologies must be mandatory. In this context of a circular economy, the study of green extraction techniques also becomes a priority in substitution of traditional extraction approaches. This review is focused on the recovery of chlorogenic acids from agri-food wastes, as these compounds have an important impact on human health, exhibiting several different and important healthy properties. Novel extraction methodologies, namely microwave and ultrasound-assisted extractions, supercritical fluid extraction, and pressurized-liquid extraction, are discussed here, in comparison with conventional techniques. The great potentialities of these new innovative green and sustainable approaches are pointed out. Further investigations and optimization are mandatory before their application in industrial processes.

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“…Each numerical matrix was imported and autoscaled using the software Matlab™ with PLS Toolbox package (8.6.1 -Eigenvector Research Inc., Wenatchee, USA). The resultant matrices were decomposed using the SVD (Singular Value Decomposition) algorithm, and relevant Information was obtained on the first two Principal Components (PC) for all the analyses, with 95% of confidence level [26,27].…”

Section: Multivariate Analysismentioning

confidence: 99%

Multivariate analysis as a tool for selecting the vine pruning pretreatment towards the highest enzymatic hydrolysis yield

Filho

Maciel

Gudiña

et al. 2020

Biomass and Bioenergy

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Lignocellulosic materials require pretreatment to remove lignin enabling the enzyme access to the cellulose. This work used multivariate analysis to investigate the acid and alkali pretreatments of vine pruning followed by enzymatic hydrolysis. The best acid pretreatment conditions were H 2 SO 4 1.5%, 120 � C for 30 min, removing 68.7% of hemicellulose, enabling 95.8% of cellulose recovery. However, this treatment was not enough to allow the enzyme hydrolysis. A second step of treatment with NaOH 3.0% at 120 � C without agitation for 60 min led to a material with 75.0% of cellulose and 25.0% of lignin. However, the lowest glucose yield (80.86% and 32.26 g L À 1 of glucose) was obtained after the enzyme hydrolysis of this material. The highest glucose yield (98.72% with 35.06 g L À 1) was obtained using a pretreated material containing 68.1% of cellulose and 31.9% of lignin obtained after a milder condition (NaOH 2% at 100 � C), thus showing that not all the lignin need to be removed to obtain a high saccharification yield. A less severe pretreatment with no adverse effect on the glucose yield with the advantage of preserving the non-cellulose biomass fractions was effective for vine prune valorization.

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Green ultrasound-assisted extraction of chlorogenic acids from sweet potato peels and sonochemical hydrolysis of caffeoylquinic acids derivatives

Cited by 40 publications

References 29 publications

The Limonene Biorefinery: From Extractive Technologies to Its Catalytic Upgrading into p-Cymene

The Limonene Biorefinery: From Extractive Technologies to Its Catalytic Upgrading into p-Cymene

Recovery of Chlorogenic Acids from Agri-Food Wastes: Updates on Green Extraction Techniques

Multivariate analysis as a tool for selecting the vine pruning pretreatment towards the highest enzymatic hydrolysis yield

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