Electrospun PVA fibers loaded with antioxidant fillers extracted from Durvillaea antarctica algae and their effect on plasticized PLA bionanocomposites

Arrieta, Marina P.; Dicastillo, Carol López de; Garrido, Luan; Roa, Karina; Galotto, María José

doi:10.1016/j.eurpolymj.2018.04.012

Cited by 56 publications

(34 citation statements)

References 59 publications

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“…In both techniques, an electrical potential is applied between a droplet of a matrix solution held at the end of a capillary tube and grounded target and when the applied electric field overcomes the surface tension of the droplet, a charged jet of solution is ejected (López de Dicastillo et al, ). Several works have already shown the effectiveness of encapsulation of active compounds, such as vanillin, curcumin, natural extracts, and essential oils, into different electrospun matrixes such as polymers and proteins (Arrieta, López de Dicastillo, Garrido, Roa, & Galotto., ; Kayaci & Uyar, ; Pérez‐Masiá et al, ; Rieger & Schiffman, ; Salevic, Prieto, Cabedo, Nedovic, & Lagaron, ; Torkamani, Syahariza, Norziah, Wan, & Juliano, ; Wang et al, ). Thus, this work presents the selection of a powerful extract of maqui fruit (MQE) based on its polyphenolic, antioxidant, antimicrobial, and anti‐tyrosinase properties to be further successfully encapsulated into electrospun hydroxypropyl‐β‐cyclodextrin (HPβCD) capsules.…”

Section: Introductionmentioning

confidence: 99%

Improving polyphenolic thermal stability ofAristotelia Chilensisfruit extract by encapsulation within electrospun cyclodextrin capsules

Dicastillo

López‐Carballo

Gavara

et al. 2019

J Food Process Preserv

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Aristotelia chilensis berry, also known as maqui (MQ), has received an increased interest in the last years due to its high polyphenolic content and interesting biological activities. In this work, extractions of maqui fruit were carried out under water, ethanol and ethanol 50%. The hydroalcoholic extract presented the highest polyphenolic content, antioxidant, antimicrobial, and anti‐tyrosinase properties, resulting the most promising extract to be part of a nutraceutical product. Subsequently, because some polyphenols, principally anthocyanins, are highly sensitive to thermal treatments, encapsulation of the most powerful extract was performed by electrospray. Hydroxypropyl‐β‐cyclodextrin (HPβCD) microcapsules containing increased amounts of maqui fruit extract were successfully electrosprayed. Morphological analysis revealed when maqui extract was incorporated at 30%, the distribution of particle diameters showed the most homogeneous ratio. Electrospun HPβCD capsules containing maqui extract, HPβCD/MQ, improved the thermal stability of MQ and preserved total phenolic content when exposed to high‐temperature treatments. Practical applications The interest of consumers toward the consumption of foods rich in polyphenols has grown during the last years. One of the main sources of polyphenols are berry fruits, and maqui is one of Chilean berries with highest polyphenolic content, mainly anthocyanins. This fruit has also shown interesting antioxidant, antimicrobial, and anti‐tyrosinase activities that could contribute to the preservation of foods. The protection of these maqui fruit extract polyphenols through the encapsulation in zeina microparticles broadens the range of applications of this fruit in different applications and food formulations that involve high temperature thermal treatments, such as bakery and dairy products.

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Section: Introductionmentioning

confidence: 99%

Improving polyphenolic thermal stability ofAristotelia Chilensisfruit extract by encapsulation within electrospun cyclodextrin capsules

Dicastillo

López‐Carballo

Gavara

et al. 2019

J Food Process Preserv

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“…In fact, the antioxidant activity determined by FRAP showed the lowest values for pure ethanol ( p > 0.05) and higher values for water and aqueous/ethanol extractive solutions, without significant differences between the water and aqueous/ethanol extractive solutions ( p > 0.05), in accordance with the PC results. This fact was probably because flavonoids, which are generally more soluble in ethanol, can be bonded with saccharide groups, which are more water soluble, as has already been reported in previous work [ 43 ]. The correlation between PC and FRAP values between extracts occurred principally because the PC method is based on the oxidation of phenols by a molybdotungstophosphoric reagent through single electron transfer [ 43 ].…”

Section: Resultsmentioning

confidence: 52%

“…Therefore, there is no general standardized method for the extraction of antioxidant agents from heterogeneous systems, such as foods and crops [ 10 ]. With the aim of evaluating the most effective extraction process, various solvent systems were assayed based on previous works [ 43 , 47 ]. Table 1 reports the polyphenolic content (PC), as well as the antioxidant activities measured by two methods: FRAP (which operates by the SET mechanism) and ABTS (which operates by both the HAT and SET mechanisms) of the resulting fruit extracts.…”

Section: Resultsmentioning

confidence: 99%

“…The evaluation of the antioxidant ability of C. metuliferus fruit extract in the three different solvents assayed was determined by means of Ferric Reducing Antioxidant Power (FRAP), as well as radical 2,2′-azinobis(3-ethylbenzothiazoline-6-sulphonate (ABTS ·+ ) methods, since they are simple, inexpensive and robust techniques [ 10 , 43 ]. FRAP follows a Single Electron Transfer (SET) method, and thus detects the ability of the antioxidant to transfer one electron to deactivate the reactive functional group of ferric 2,4,6-tripyridyl-s-triazine (TPTZ) [ 12 ].…”

Section: Methodsmentioning

confidence: 99%

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Cucumis metuliferus Fruit Extract Loaded Acetate Cellulose Coatings for Antioxidant Active Packaging

et al. 2020

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A new active coating was developed by using Cucumis metuliferus fruit extract as antioxidant additive with the aim of obtaining an easy way to functionalize low-density polyethylene (LDPE) films for food packaging applications. Thus, an extraction protocol was first optimized to determine the total phenolic compounds and the antioxidant activity of CM. The aqueous CM antioxidant extract was then incorporated into cellulose acetate (CA) film-forming solution in different concentrations (1, 3 and 5 wt.%) to be further coated in corona-treated LDPE to obtain LDPE/CA-CM bilayer systems. CA and CA-CM film-forming solutions were successfully coated onto the surface of LDPE, showing good adhesion in the final bilayer structure. The optical, microstructural, thermal, mechanical and oxygen barrier performance, as well as the antioxidant activity, were evaluated. The active coating casted onto the LDPE film did not affect the high transparency of LDPE and improved the oxygen barrier performance. The antioxidant effectiveness of bilayer packaging was confirmed by release studies of Cucumis metuliferus from the cellulose acetate layer to a fatty food simulant. Finally, the LDPE/CA-CM active materials were also tested for their application in minimally processed fruits, and they demonstrated their ability to reduce the oxidation process of fresh cut apples. Thus, the obtained results suggest that CA-CM-based coating can be used to easily introduce active functionality to typically used LDPE at industrial level and enhance its oxygen barrier, without affecting the high transparency, revealing their potential application in the active food packaging sector to extend the shelf-life of packaged food by prevention of lipid oxidation of fatty food or by prevention fruit browning.

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“…Desde un punto de vista nutritivo, es una fuente de proteínas, vitaminas, minerales y fibra dietaria del tipo soluble, con aplicaciones industriales como alimento funcional 4 . Su extracto, puede ser usado en el envasado sostenible de alimentos activos por la industria alimentaria como bionanocompuestos antioxidantes en un simulante de alimentos grasos, identificando, además, actividad antiséptica frente a microorganismos como Escherichia Coli 5 .…”

Section: Sr Editorunclassified

Durvillaea Antárctica: Revalorando un alimento patrimonial

et al. 2019

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Electrospun PVA fibers loaded with antioxidant fillers extracted from Durvillaea antarctica algae and their effect on plasticized PLA bionanocomposites

Cited by 56 publications

References 59 publications

Improving polyphenolic thermal stability ofAristotelia Chilensisfruit extract by encapsulation within electrospun cyclodextrin capsules

Improving polyphenolic thermal stability ofAristotelia Chilensisfruit extract by encapsulation within electrospun cyclodextrin capsules

Cucumis metuliferus Fruit Extract Loaded Acetate Cellulose Coatings for Antioxidant Active Packaging

Durvillaea Antárctica: Revalorando un alimento patrimonial

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