Development of low-cost biodegradable films from corn starch and date palm pits (Phoenix dactylifera)

Alqahtani, Nashi K.; Alnemr, Tareq M.; Ali, Salim

doi:10.1016/j.fbio.2021.101199

Cited by 21 publications

(8 citation statements)

References 37 publications

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“…Previous work showed a close relationship between TPC and the antioxidant activity of date pits extracts (Alqahtani et al, 2021). Eça In our study, catechin derivatives are the main phenolic constituents of DPPE.…”

Section: Optical Propertiessupporting

confidence: 75%

“…These results show that polyphenols from DPPE added to alginate films may act as antioxidants enhancing the packaging effectiveness in a concentration‐dependent manner (Rhimi et al, 2018 ). Previous work showed a close relationship between TPC and the antioxidant activity of date pits extracts (Alqahtani et al, 2021 ). Eça et al ( 2015 ) have studied phytochemical contents and antioxidant capacity for 3 months' shelf‐life storage of pectin films containing different fruit extracts.…”

Section: Resultsmentioning

confidence: 76%

“…Ahmed et al ( 2020 ) showed that the incorporation of date pit oil at 2% in wax‐coating formulations significantly improved guava fruit shelf life. Low‐cost biodegradable films developed from corn starch and date pit powder revealed enhanced mechanical, antioxidant, and insulating properties (Alqahtani et al, 2021 ). In this context, date seeds rich in active compounds represent a suitable candidate for producing biodegradable films and coatings with increased functionality and environmental sustainability.…”

Section: Introductionmentioning

confidence: 99%

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Active food packaging films from alginate and date palm pit extract: Physicochemical properties, antioxidant capacity, and stability

Khwaldia

M’Rabet

Boulila

2022

Food Science & Nutrition

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Date palm pits are highly available and inexpensive palm date by‐products, representing a valuable source of natural antioxidants, particularly phenolic compounds. Date palm pit extract (DPPE) was prepared from these waste products and characterized for its phenolic content and in vitro antioxidant activity. Profiling DPPE by liquid chromatography coupled with mass spectrometry (LC/MS) showed the presence of dimers and trimers of (epi)catechin as the main constituents. Alginate‐based films with four increasing concentrations of DPPE (10%, 20%, 30%, and 40% w/w) were prepared by the casting method. DPPE incorporation reduced solubility values of alginate films by 37%–64% and their surface wettability by 72%–111%. The incorporation of 10% DPPE improved water vapor barrier properties and increased tensile strength (TS) and elongation at break (%E) of alginate films by more than 23%, 50%, and 45%, respectively. The film containing 40% DPPE showed the lowest loss of phenolic content (32%), DPPH (1,1‐diphenyl‐2‐picrylhydrazyl) scavenging activity (38%), and ferric reducing antioxidant power (FRAP) (30%) after storage for 3 months.

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Section: Optical Propertiessupporting

confidence: 75%

Section: Resultsmentioning

confidence: 76%

Section: Introductionmentioning

confidence: 99%

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Active food packaging films from alginate and date palm pit extract: Physicochemical properties, antioxidant capacity, and stability

Khwaldia

M’Rabet

Boulila

2022

Food Science & Nutrition

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“…da Silva Filipini et al [29] reported that because of their sensitivity to water, films with high solubility tend to biodegrade quickly because the components of the film structure are available for micro-organisms to digest. Additionally, Alqahtani et al [53] stated that the weight loss could be a result of the soil microflora disintegrating or the film components becoming soluble due to the addition of water to the soil. In the literature, cassava starch films with natural extracts (green tea and basil) [54] and with yerba mate extract [55] showed a degradation time of 12 days, and methylcellulose and jambolao (Syzygium cumini) skins extract films showed a degradation time of 15 days [29].…”

Section: Biodegradabilitymentioning

confidence: 99%

Encapsulation of Caffeic Acid in Carob Bean Flour and Whey Protein-Based Nanofibers via Electrospinning

Zeren

Şahin

Şumnu

2022

Foods

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The purpose of this study was to introduce caffeic acid (CA) into electrospun nanofibers made of carob flour, whey protein concentrate (WPC), and polyethylene oxide (PEO). The effects of WPC concentration (1% and 3%) and CA additions (1% and 10%) on the characteristics of solutions and nanofibers were investigated. The viscosity and electrical conductivity of the solutions were examined to determine characteristics of solutions. Scanning electron microscopy (SEM), X-ray diffraction (XRD), thermogravimetric analyzer (TGA), differential scanning calorimetry (DSC), water vapor permeability (WVP), and Fourier transform infrared (FTIR) analysis were used to characterize the nanofibers. According to the SEM results, the inclusion of CA into nanofibers resulted in thinner nanofibers. All nanofibers exhibited uniform morphology. CA was efficiently loaded into nanofibers. When CA concentrations were 1% and 10%, loading efficiencies were 76.4% and 94%, respectively. Nanofibers containing 10% CA demonstrated 92.95% antioxidant activity. The results indicate that encapsulating CA into carob flour–WPC-based nanofibers via electrospinning is a suitable method for active packaging applications.

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“…The surface became smoother than the untreated film, but many microscopic cracks appeared on the surface. Tiny white dots appeared scattered throughout the film surface, which could be related to the higher amount of insoluble particles in the film [ 44 ].…”

Section: Resultsmentioning

confidence: 99%

Influence of Dielectric Barrier Discharge Cold Plasma Treatment on Starch, Gelatin, and Bacterial Cellulose Biodegradable Polymeric Films

et al. 2022

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The environmental damage caused by plastic packaging and the need to reduce pollution requires actions to substitute plastic materials for more sustainable and biodegradable materials. Starch, gelatin, and bacterial cellulose films are three potential biodegradable polymeric films for use in packaging. However, these materials need improvements in their physical, chemical, and mechanical properties to be used in packaging. In this work, these films were treated with cold plasma to evaluate the effects of treatment conditions on several physical, chemical, and mechanical properties. The dielectric barrier discharge plasma technology was applied with varying treatment times (0 to 20 min) and excitation frequencies (50 to 900 Hz) at 20 kV. The optimal excitation frequency for starch films (50 Hz) was different from the optimal frequency for gelatin and bacterial cellulose films (900 Hz), indicating a high dependency on the treatment in this variable that is often neglected. Plasma treatment improved the hydrophobicity, surface morphology, water resistance, and mechanical properties of all three films, with the advantage of not recurring to chemical or biological additives.

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Development of low-cost biodegradable films from corn starch and date palm pits (Phoenix dactylifera)

Cited by 21 publications

References 37 publications

Active food packaging films from alginate and date palm pit extract: Physicochemical properties, antioxidant capacity, and stability

Active food packaging films from alginate and date palm pit extract: Physicochemical properties, antioxidant capacity, and stability

Encapsulation of Caffeic Acid in Carob Bean Flour and Whey Protein-Based Nanofibers via Electrospinning

Influence of Dielectric Barrier Discharge Cold Plasma Treatment on Starch, Gelatin, and Bacterial Cellulose Biodegradable Polymeric Films

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