Multivariate optimization techniques in food analysis – A review

Ferreira, Sérgio L.C.; Silva, Mario M.; Felix, Caio S.A.; Silva, Daniel L.F. da; Santos, Adilson S.; Neto, João H. Santos; Souza, Cheilane T. de; Cruz, Raineldes A.; Souza, Anderson Santos

doi:10.1016/j.foodchem.2017.11.114

Cited by 99 publications

(55 citation statements)

References 80 publications

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“…As explained above for anthocyanins, before the identification and quantification of sugars, the influence of several factors that can affect their extraction was evaluated: temperature (10,20,30,40,50, 60, 70 • C), percentage of methanol (0, 10, 20, 40, 60%) and time (2, 5, 10, 15, 20, 25, 30 min). For each experiment 0.5 g of sample were weighed, UAE was performed, and then the extracts were filtered and placed in a 25 mL volumetric flask.…”

Section: Analysis Of Sugarsmentioning

confidence: 99%

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Ultrasound-Assisted Extraction of Two Types of Antioxidant Compounds (TPC and TA) from Black Chokeberry (Aronia melanocarpa L.): Optimization of the Individual and Simultaneous Extraction Methods

et al. 2019

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Chokeberry (Aronia melanocarpa L.) contains a large number of bioactive compounds, which make of it a highly nutritional and antioxidant food with anti-cancer and anti-inflammatory properties. It has been recently seen its consumption increased because of its interesting composition and properties as a functional food. The ultrasound-assisted extraction method has been optimized, since it is a simple and fast technique to extract phenolic compounds, as well as anthocyanins, not only separately but also simultaneously. Multiple response has been optimized and demonstrated an effectiveness level similar to the individual ones. This represents a considerable reduction in costs, time and work. The optimal conditions for simultaneous extractions were: 54% methanol as extraction solvent at pH 2.72 and 69.4 °C temperature, 70% amplitude, 0.7 s cycle, and 0.5:18.2 g:mL sample mass/solvent volume ratio. The developed methods showed a high precision level with coefficients of variation lower than 5%. The methods were successfully applied to commercial samples. Additionally, the extraction of other compounds of biological interest, such as organic acids and sugars, was also studied.

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Section: Analysis Of Sugarsmentioning

confidence: 99%

“…This aspect could be relevant with regards to cost and laboratory time saving. The desirability function, which converts multiple responses into one that is latter on optimized, was used for the optimization of the simultaneous extraction process [20,21].…”

Section: Introductionmentioning

confidence: 99%

Ultrasound-Assisted Extraction of Two Types of Antioxidant Compounds (TPC and TA) from Black Chokeberry (Aronia melanocarpa L.): Optimization of the Individual and Simultaneous Extraction Methods

et al. 2019

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“…Multivariate techniques are used very effectively to optimize the extraction method from complex plant matrices such as food products and by-products [22]. Among the different multivariate techniques, when 3 factors are considered, the Behnken Box design is one of the most effective technique [22,23].…”

Section: Development Of the Ultrasound-assisted Extraction Using Box-mentioning

confidence: 99%

A Quick, Green and Simple Ultrasound-Assisted Extraction for the Valorization of Antioxidant Phenolic Acids from Moroccan Almond (<em>Prunus dulcis</em> (Mill.) D.A.Webb) Cold-Pressed Oil Residues

Elamrani¹,

Abid²,

Drouet³

et al. 2020

Preprint

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Almond (Prunus dulcis (Mill.) D.A.Webb) is one of the most important nut crops both in terms of area and production. Over the last decades, an important part of the beneficial actions for health associated with their consumption was attributed to the phenolic compounds, mainly accumulated in almond skin. Interestingly, after cold-pressed oil extraction, most of these antioxidant phenolic compounds are retained in a skin-enriched by-product, so-called almond cold-pressed oil residue. In Morocco, ranked fifth producer in the world, this production generates an important part of this valuable byproduct. In the present study, using a multivariate Box-Behnken design, an ultrasound-assisted extraction (USAE) method of phenolic compounds from Moroccan almond cold-pressed oil residue was developed and validated. Response surface methodology resulted in the optimal extraction conditions: the use of aqueous EtOH 53.0% (v/v) as green solvent, applying an US frequency of 27.0 kHz for an extraction duration of 29.4 min. The present USAE allowed substantial gains in terms of extraction efficiency compared to conventional heat reflux extraction. Applied to 3 different local Beldi genotypes growing at 3 different experimental sites, the optimal USAE conditions led to a total phenolic content of 13.86 mg/g dry weight (DW). HPLC analysis revealed that the main phenolic compounds from this valuable byproduct were: chlorogenic acid followed by protocatechuic acid, p-hydrobenzoic acid and p-coumaric acid. The accumulation of these phenolic compounds appeared to be more dependent on the genetic background than on the environmental impact here represented by the 3 experimental culture sites. Both in vitro cell free and cellular antioxidant assays were performed, and revealed the great potential of these extracts. In particular, correlation analysis evidenced the prominent roles of chlorogenic acid, protocatechuic acid and p-hydrobenzoic acid. To summarize, the USAE method presented here is a quick, green, simple and efficient validated USAE for the possible valorization of antioxidant phenolic compounds from Moroccan almond cold-Pressed oil residues, making it possible to generate extracts with attractive antioxidant activities for future nutraceutical and/or cosmetic applications.

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“…The organic fraction of municipal solid waste may turn into an important source and López-Gómez et al [36] point at its importance in this bioeconomy model. The use of agricultural and agro-industrial wastes and by-product streams will be an important lactic acid source [37] and it will bring support to reduce the overall production cost, aiming to bridge the waste suppliers to the chemical production industries and it will help to incorporate waste from other sectors into the life cycle of a new compound with proven efficiency in the water treatment.…”

Section: Independentmentioning

confidence: 99%

Analysis of Biomaterials as Green Coagulants to Control Suspended Solids for Surface Water Treatment

Rey

González-Aller

Urréjola

2020

IJERPH

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This study explores the use of natural, ecological coagulant-flocculants to reduce suspended particles in water. Three compounds were tested, namely: diatomaceous earth, calcium lactate and lactic acid. For this purpose, experiments in jar tests were carried out and the best compound was submitted to an optimization in order to evaluate the most significant parameters affecting its use as coagulant-flocculant. First results evidenced that lactic acid remove 71% of the suspended particles during the first five minutes, and up to 83% during the first 15 min. To optimize its use, the range of suspended particles concentration, lactic acid dose and salinity gradient was tested by means of an incomplete 33 factorial design. This technique allows reducing the number of experiments to be carried out through a response surface methodology, which enables to infer the values of the dependent variables in not studied situations, by means of predictive equations. As a result of the experiments carried out, optimal conditions to remove suspended particles were set at a lactic acid concentration of 1.75 g·L−1. As lactic acid may be obtained biotechnologically from organic wastes, this use supposes a promising area by keeping products and materials in use and contributing to a circular economy.

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Multivariate optimization techniques in food analysis – A review

Cited by 99 publications

References 80 publications

Ultrasound-Assisted Extraction of Two Types of Antioxidant Compounds (TPC and TA) from Black Chokeberry (Aronia melanocarpa L.): Optimization of the Individual and Simultaneous Extraction Methods

Ultrasound-Assisted Extraction of Two Types of Antioxidant Compounds (TPC and TA) from Black Chokeberry (Aronia melanocarpa L.): Optimization of the Individual and Simultaneous Extraction Methods

A Quick, Green and Simple Ultrasound-Assisted Extraction for the Valorization of Antioxidant Phenolic Acids from Moroccan Almond (<em>Prunus dulcis</em> (Mill.) D.A.Webb) Cold-Pressed Oil Residues

Analysis of Biomaterials as Green Coagulants to Control Suspended Solids for Surface Water Treatment

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