Chitosan films incorporating litchi peel extract and titanium dioxide nanoparticles and their application as coatings on watercored apples

Liu, Zitian; Du, Meijun; Liu, Huiping; Zhang, Kai; Xu, Xiangxin; Li, Kai; Tu, Jianqiu; Liu, Qingrun

doi:10.1016/j.porgcoat.2020.106103

Cited by 46 publications

(33 citation statements)

References 52 publications

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“…Since LPE was mainly composed of proanthocyanidins and (−)-epicatechin, it could interact with film matrix through hydrogen bonds. Recently, Liu et al (2021) observed that the N-H/O-H stretching and C=O stretching bands shifted after LPE was added this study, QAC and PVA were blended at higher temperature for longer time as compared with the study conducted by Yao et al (2020). Thus, QP film prepared in this study showed a homogeneous cross-section.…”

Section: Determination Of Antimicrobial Activity Of Filmsmentioning

confidence: 76%

“…Polyphenols were extracted from litchi pericarp following the method given by Liu et al (2021) with some modifications. Litchi pericarp was separated from fresh fruits and washed with distilled water.…”

Section: Extraction Of Polyphenols From Litchi Pericarpmentioning

confidence: 99%

“…Till now, litchi pericarp polyphenols have been demonstrated to possess strong antioxidant and antimicrobial activities, indicating that litchi pericarp polyphenols have a potential contribution in manufacturing active packaging films (Sarni-Manchado et al, 2000;Wang et al, 2011). Nonetheless, only one study has focused on the preparation of active packaging films based on litchi pericarp polyphenols up to now (Liu et al, 2021). Liu et al (2021) prepared active packaging films by using CS and 3 wt% litchi pericarp extract (LPE) and found the films had strong antioxidant and antimicrobial activities.…”

Section: Preparation Of Filmsmentioning

confidence: 99%

“…Nonetheless, only one study has focused on the preparation of active packaging films based on litchi pericarp polyphenols up to now (Liu et al, 2021). Liu et al (2021) prepared active packaging films by using CS and 3 wt% litchi pericarp extract (LPE) and found the films had strong antioxidant and antimicrobial activities. However, the impact of LPE content on the structural, physical and functional properties of the films is still unclear.…”

Section: Preparation Of Filmsmentioning

confidence: 99%

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Development of active packaging films based on quaternary ammonium chitosan, polyvinyl alcohol and litchi (Litchi chinensis Sonn.) pericarp extract

Liu

Yao

Yun

et al. 2021

qas

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Litchi (Litchi chinensis Sonn.) pericarp contains abundant polyphenols that are suitable materials for developing active packaging films. In this study, 1 wt%, 3 wt% and 5 wt% of litchi pericarp extract (LPE) was added into qua-ternary ammonium chitosan (QAC) and polyvinyl alcohol (PVA) matrix to develop active packaging films. The structural, physical and functional properties of QAC-PVA (QP) films were compared with LPE (QP-LPE films) and without LPE (QP films). Results showed QP film had a heterogenous cross-section whereas QP-LPE films displayed rough and uneven cross-sections. After adding LPE, the N–H, O–H, C–H and C=O stretching bands of QP films shifted due to the formation of intermolecular interactions between LPE and film matrix. LPE made the colorless QP film turned brown. QP-LPE films presented lower ultraviolet–visible light transmittance than QP film. After adding LPE, film thickness increased from 0.091 to 0.103 mm, film water vapor permeability increased from 14.98 × 10−11 to 17.21 × 10−11 g m−1 s−1 Pa−1, film oxygen permeability increased from 0.16 to 0.22 cm3 mm m−2 day−1 atm−1, film tensile strength increased from 14.10 to 17.41 MPa, and film elongation at break decreased from 36.94% to 25.13%. QP-LPE films quickly released polyphenols in distilled water within 4 h and displayed potent antioxidant activity. The antimicrobial ratio of the film against Escherichia coli, Salmonella typhimurium, Staphylococcus aureus and Listeria monocytogenes was elevated from 50.40−68.04% to 58.93−91.38% after adding LPE. Results suggested QP-LPE films could be utilized as antioxidant and antimicrobial packaging materials in food industry.

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Section: Determination Of Antimicrobial Activity Of Filmsmentioning

confidence: 76%

Section: Extraction Of Polyphenols From Litchi Pericarpmentioning

confidence: 99%

Section: Preparation Of Filmsmentioning

confidence: 99%

Section: Preparation Of Filmsmentioning

confidence: 99%

See 2 more Smart Citations

Development of active packaging films based on quaternary ammonium chitosan, polyvinyl alcohol and litchi (Litchi chinensis Sonn.) pericarp extract

Liu

Yao

Yun

et al. 2021

qas

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“…Chitosan possesses various features, such as biodegradability, filmforming properties, and biocompatibility, and becomes one of the research hotspots in food packaging materials [5][6][7]. However, pure chitosan has the disadvantage of poor antibacterial and antioxidant properties [8,9], so natural active ingredients are often incorporated to improve the antibacterial or antioxidant properties of chitosan, such as pomegranate peel extract and Thymus kotschyanus essential oil [10], chestnut extract [11], and litchi peel extract [12].…”

Section: Introductionmentioning

confidence: 99%

Effects of Pine Bark Extract on Physicochemical Properties and Biological Activity of Active Chitosan Film by Bionic Structure of Dragonfly Wing

Wan

Cong

et al. 2021

Coatings

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Bionic and active films based on chitosan were developed with the bionic structure of dragonfly wings incorporating pine bark extract (PBE). Physicochemical properties of the films, including thickness, opacity, moisture content, color, mechanical properties, and water vapor permeability were measured. Antioxidant activity of the films was characterized by DPPH free radical scavenging activity. The interaction between chitosan and PBE was explored by attenuated total reflectance Fourier transform infrared spectrometry, X-ray diffraction, and differential scanning calorimetry. The results indicated that the addition of PBE gave rise to the films greater opacity, redness, and darker appearance. Compared with pure chitosan film, the thickness, opacity, mechanical properties, and oxidation resistance of the bionic chitosan–PBE film increased, and the water vapor permeability decreased. The films based on chitosan incorporated PBE and with the bionic structure of dragonfly wings can potentially be applied to food packaging.

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Biopolymer‐Based Nanocomposites for Active Food Packaging

Baidya,

Anandalakshmi

2024

Smart Food Packaging Systems

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Chitosan films incorporating litchi peel extract and titanium dioxide nanoparticles and their application as coatings on watercored apples

Cited by 46 publications

References 52 publications

Development of active packaging films based on quaternary ammonium chitosan, polyvinyl alcohol and litchi (Litchi chinensis Sonn.) pericarp extract

Development of active packaging films based on quaternary ammonium chitosan, polyvinyl alcohol and litchi (Litchi chinensis Sonn.) pericarp extract

Effects of Pine Bark Extract on Physicochemical Properties and Biological Activity of Active Chitosan Film by Bionic Structure of Dragonfly Wing

Biopolymer‐Based Nanocomposites for Active Food Packaging

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