A novel sodium alginate active films functionalized with purple onion peel extract (Allium cepa)

Santos, Luan Gustavo dos; Silva, Gisele Fernanda Alves; Gomes, Bruno Marques; Martins, Vilásia Guimarães

doi:10.1016/j.bcab.2021.102096

Cited by 37 publications

(25 citation statements)

References 25 publications

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“…Santos et al. [ 50 ] also revealed the similar observation of adding purple onion peel extract into functionalized sodium alginate active films. Accordingly, the sodium alginate films incorporated with the purple onion peel extracts significantly increased the values of film thickness (0.049–0.062 mm).…”

Section: Resultsmentioning

confidence: 65%

Characterizations and antibacterial activities of passion fruit peel pectin/chitosan composite films incorporated Piper betle L. leaf extract for preservation of purple eggplants

Nguyen

et al. 2022

Heliyon

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Section: Resultsmentioning

confidence: 65%

Characterizations and antibacterial activities of passion fruit peel pectin/chitosan composite films incorporated Piper betle L. leaf extract for preservation of purple eggplants

Nguyen

et al. 2022

Heliyon

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“…The determination of the moisture and solubility water (SW) characteristics of the films was realised using gravimetric methods (Santos et al ., 2021). Water vapour permeability (WVP) was determined in triplicate according to the ASTM Standard Method E96‐00 (ASTM, 1995).…”

Section: Methodsmentioning

confidence: 99%

“…The colour and opacity were measured with a colorimeter (Minolta CR 400, Japan) using Illuminant D65 as standard (Santos et al ., 2021). CIELab scales were used to analyse the parameter L* (lightness/brightness), a* (redness/greenness) and b* (yellowness/blueness), determining the total difference of colour (∆E).…”

Section: Methodsmentioning

confidence: 99%

“…The preparation of filmogenic extracts followed the methodology of Santos et al . (2021) and the aqueous extract obtained was used to determine the total phenolic content (TPC) and the antioxidant activity of the films.…”

Section: Methodsmentioning

confidence: 99%

“…The TPC was determined using 0.5 mL of the extract with 2.5 mL of sodium carbonate (7.5% w/v) and 2.0 mL of Folin–Ciocalteu (10% v/v). The solution was incubated at 50 °C for 15 min and read in the spectrophotometer UV–VIS (Kasuaki IL592, Brazil) at 760 nm (Santos et al ., 2021). The TPC content was determined using a standard curve of gallic acid and the results were expressed in milligrams of gallic acid equivalents per gram of film (mg GAE/g film).…”

Section: Methodsmentioning

confidence: 99%

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Cassava starch films incorporated with clove essential oil and nanoclay as a strategy to increase the shelf life of strawberries

Silva

Santos

Martins

et al. 2022

Int J of Food Sci Tech

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The incorporation of essential oil and nanocomposites can develop bioplastics with antioxidant and antimicrobial effects that extend the shelf life of food. In this study, active cassava starch films were incorporated with clove essential oil (CEO) and montmorillonite (MMT) for application on fresh strawberries. Central composite design was used in the development of cassava starch active films and the mechanical, barrier, antioxidant and antimicrobial properties were evaluated. The effects of active films on the quality of fresh strawberries were investigated. The incorporation of MMT and CEO promoted better mechanical performance (elongation greater than 180%), greater light barrier properties (opacity greater than 17%) and high antioxidant action due to the content of polyphenols present (32 mg GAE/g). Strawberries packed with the active films showed less changes in the parameters of colour, acidity and microbial contamination during the storage period evaluated.

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Effects of biodegradable and active sachets based on sodium alginate and Macaúba (Acrocomia aculeata) pulp extract on the quality of olive oil

Silva

Santos

Romani³

et al. 2023

J of Applied Polymer Sci

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This study aimed to produce and characterize biodegradable films of sodium alginate incorporated with macaúba pulp extract (MPE‐0, 10%, 20%, and 30%) and evaluate their effects as active sachets containing olive oil. The films were produced by casting technique and mechanical, barrier, and antioxidant properties were evaluated. The incorporation of MPE modified the mechanical, solubility, color, and barrier properties of alginate films. The polyphenol content of the films increased with the addition of MPE, showing antioxidant activity of 4.2 and 4 mg GAE g−1 for ABTS•+ and DPPH, respectively. The film incorporated with 10% of extract (MP10) presented a decrease of 82% in water vapor permeability and an increase in the tensile strength of 2.3 times compared to the control film (without extract). MP10 was used to store olive oil as this formulation showed superior packaging properties compared to the others tested. At the end of the 16 days of olive oil storage, MP10 was able to maintain the quality parameters of peroxide and acidity within the limits established by current legislation. Therefore, these results indicate the great potential of the incorporation of MPE in the elaboration of sustainable and active materials for packaging olive oil and other fatty foods.

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A novel sodium alginate active films functionalized with purple onion peel extract (Allium cepa)

Cited by 37 publications

References 25 publications

Characterizations and antibacterial activities of passion fruit peel pectin/chitosan composite films incorporated Piper betle L. leaf extract for preservation of purple eggplants

Characterizations and antibacterial activities of passion fruit peel pectin/chitosan composite films incorporated Piper betle L. leaf extract for preservation of purple eggplants

Cassava starch films incorporated with clove essential oil and nanoclay as a strategy to increase the shelf life of strawberries

Effects of biodegradable and active sachets based on sodium alginate and Macaúba (Acrocomia aculeata) pulp extract on the quality of olive oil

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