Effects of virgin coconut oil on the physicochemical, morphological and antibacterial properties of potato starch‐based biodegradable films

Zhang, Fangfang; Bai, Xinpeng; Gao, Wei; Wang, Guoding; Shi, Zhenzhen; Cao, Jun

doi:10.1111/ijfs.14262

Cited by 38 publications

(23 citation statements)

References 44 publications

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“…Higher content of VCO may contain a higher content of monoglyceride to transform to monolaurin derivatives and thus exert the antimicrobial effects. However, our result is contrary to a few studies reported previously [ 36 , 41 ]. Although these studies examined the film on the agar spread with Gram-negative and Gram-positive bacteria, which has the lesser contact of essential oil to the agar, but their observation shows promising antibacterial activities.…”

Section: Resultscontrasting

confidence: 99%

See 1 more Smart Citation

Gellan Gum Hydrogels Filled Edible Oil Microemulsion for Biomedical Materials: Phase Diagram, Mechanical Behavior, and In Vivo Studies

Muktar

Bakar²,

Amin

et al. 2021

Polymers

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The demand for wound care products, especially advanced and active wound care products is huge. In this study, gellan gum (GG) and virgin coconut oil (VCO) were utilized to develop microemulsion-based hydrogel for wound dressing materials. A ternary phase diagram was constructed to obtain an optimized ratio of VCO, water, and surfactant to produce VCO microemulsion. The VCO microemulsion was incorporated into gellan gum (GG) hydrogel (GVCO) and their chemical interaction, mechanical performance, physical properties, and thermal behavior were examined. The stress-at-break (σ) and Young’s modulus (YM) of GVCO hydrogel films were increased along with thermal behavior with the inclusion of VCO microemulsion. The swelling degree of GVCO hydrogel decreased as the VCO microemulsion increased and the water vapor transmission rate of GVCO hydrogels was comparable to commercial dressing in the range of 332–391 g m−2 d−1. The qualitative antibacterial activities do not show any inhibition against Gram-negative (Escherichia coli and Klebsiella pneumoniae) and Gram-positive (Staphylococcus aureus and Bacillus subtilis) bacteria. In vivo studies on Sprague–Dawley rats show the wound contraction of GVCO hydrogel is best (95 ± 2%) after the 14th day compared to a commercial dressing of Smith and Nephew Opsite post-op waterproof dressing, and this result is supported by the ultrasound images of wound skin and histological evaluation of the wound. The findings suggest that GVCO hydrogel has the potential to be developed as a biomedical material.

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Section: Resultscontrasting

confidence: 99%

“…Decreased weight loss reflects the increases in the thermal behavior of a material [ 34 ]. Similar phenomena have been observed for other oil-based materials [ 35 , 36 ].…”

Section: Resultssupporting

confidence: 86%

Gellan Gum Hydrogels Filled Edible Oil Microemulsion for Biomedical Materials: Phase Diagram, Mechanical Behavior, and In Vivo Studies

Muktar

Bakar²,

Amin

et al. 2021

Polymers

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“…Studies were carried out on many newborns under randomized controlled conditions with results showing that coconut oil has positive effects over the newborns' health and with no undesired side effects [6,69]. Studies are also being conducted on the feasibility of using coconut oil to synthesis edible packaging material as an additive for starch-based films in food packaging as an enhanced edible film [70][71][72]. Further extraction of virgin coconut oil can be carried out to obtain medium-chained triglyceride, which was found to be a major component of coconut oil [73].…”

Section: Industrial Applicationsmentioning

confidence: 99%

A comprehensive review on the techniques for coconut oil extraction and its application

Tham

Khoo

et al. 2021

Bioprocess Biosyst Eng

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Virgin coconut oil is a useful substance in our daily life. It contains a high percentage of lauric acid which has many health benefits. The current industry has developed several methods to extract the oil out from the coconut fruit. This review paper aims to highlight several common extraction processes used in modern industries that includes cold extraction, hot extraction, low-pressure extraction, chilling, freezing and thawing method, fermentation, centrifugation, enzymatic extraction and supercritical fluid carbon dioxide. Different extraction methods will produce coconut oil with different yields and purities of lauric acid, thus having different uses and applications. Challenges that are faced by the industries in extracting the coconut oil using different methods of extraction are important to be explored so that advancement in the oil extraction technology can be done for efficient downstream processing. This study is vital as it provides insights that could enhance the production of coconut oil.

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“…The mechanism of lauric acid antimicrobial function may include the degradation of cell walls, cell signals, and transcription interference. The virgin CO has bacterial inhibition effect on Staphylococcus aureus , Listeria monocytogenes , and Escherichia coli and also has an impact on the mechanical and water barrier properties of edible films 22–25 …”

Section: Introductionmentioning

confidence: 99%

Active packaging gelatin films based on chitosan/Arabic gum/coconut oil Pickering nano emulsions

Sultan

El-Sayed

Abdelhakim

et al. 2021

J of Applied Polymer Sci

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This investigation intended at fabricating gelatin active packaging films based on nano‐sized droplets of coconut oil emulsified by Pickering emulsion (PE) using chitosan/Arabic gum (CH/AG) nanoparticles (NPs) as a stabilizer and in the presence of titanium dioxide NP (TiO2 NPs) as an extra antimicrobial agent. The developed films were characterized by attenuated total reflectance–Fourier transmittance infrared, X‐ray diffraction, and scanning electron microscope. The antimicrobial, antioxidant, water vapor sorption isotherm, and mechanical properties of the prepared films were assessed. The (CH/AG) NPs weight ratios (1:1, 1:2, and 2:1) impact on particle size (PS), zeta potential, wettability, morphology, and in vitro cumulative release was investigated. The (CH/AG) NPs (1:2) exhibits the small PS (246.4 nm). (CH/AG) NPs and PE exhibit spherical and oval morphologies. The CH/AG (1:2) exhibits the higher water contact angle (85.7o). At the oil volume fraction (α) = 1.0, nearly 81% of the entrapped oil released from the NPs. Gelatin films enriched with P at α = 1.0 exhibits two‐fold increasing scavenging activity % (35.69 ± 0.56) compared with control film (14.8 ± 0.25). The films have a considerable antibacterial and antifungal activity for all test microorganism. However, control sample did not show antimicrobial activity against Bacillus cereus and Candida albicans.

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Effects of virgin coconut oil on the physicochemical, morphological and antibacterial properties of potato starch‐based biodegradable films

Cited by 38 publications

References 44 publications

Gellan Gum Hydrogels Filled Edible Oil Microemulsion for Biomedical Materials: Phase Diagram, Mechanical Behavior, and In Vivo Studies

Gellan Gum Hydrogels Filled Edible Oil Microemulsion for Biomedical Materials: Phase Diagram, Mechanical Behavior, and In Vivo Studies

A comprehensive review on the techniques for coconut oil extraction and its application

Active packaging gelatin films based on chitosan/Arabic gum/coconut oil Pickering nano emulsions

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