Nano-TiO2/Chitosan Coated Antibacterial Paper and Its Preservation Effect in Packaging Nanguo Pear

Jiang, Zongxuan; Huang, Junyan; Yu, Lingxue; Sun, Xin; Cui, Li

doi:10.2991/icmsa-15.2015.183

Cited by 3 publications

(2 citation statements)

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“…An interesting study dealing with investigation of antibacterial and preservation efficiency of packaging paper coated with TiO 2 / chitosan on nanguo pears [85]. Measuring of the sensory of the nanguo pears showed that the weight loss of the fruits packed in antibacterial paper is less than those packed in normal paper.…”

Section: Doped Tio 2 In Antibacterial Packaging Materialsmentioning

confidence: 99%

Tio2/Polymer Nanocomposites for Antibacterial Packaging Application

Mha¹,

Alhamidi²

2018

Journal of Advancements in Food Technology

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Packaging material should meet many requirements for safe preservation of food and extend shelf life. Utilization of nanoparticles to prepare active packaging films has been widely investigated. This review deals with food packaging films modified with nanotitania to enhance mechanical, barrier and antibacterial properties of the packages. The photocatalytic activity of TiO 2 nanoparticles extended its application to antimicrobial food packaging, photocatalytic paper and toxin passivation and deodorizing. Different TiO 2 morphologies are favorable in many potential applications such as in environmental purification. Finally, this review will also discuss safety assessment of nanomaterials used in food packaging and migration mechanism into food staff.

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Section: Doped Tio 2 In Antibacterial Packaging Materialsmentioning

confidence: 99%

Tio2/Polymer Nanocomposites for Antibacterial Packaging Application

Mha¹,

Alhamidi²

2018

Journal of Advancements in Food Technology

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“…An appropriate number of TiO 2 nanoparticles can improve the mechanical properties and water barrier properties of biopolymer films (He, Zhang, Cai, & Wang, ). Furthermore, TiO 2 has long‐lasting broad‐spectrum bacteriostasis properties, which can effectively increase the shelf life of fruits and meat products (Alizadeh Sani, Ehsani, & Hashemi, ; Jiang, Huang, Yu, Sun, & Cui, ). However, TiO 2 nanoparticles easily aggregate into micron‐sized particles (Liu, Han, & Ke, ), thus exhibiting poor compatibility with many materials and even causing phase separation.…”

Section: Introductionmentioning

confidence: 99%

Acetylated Distarch Phosphate/Chitosan Films Reinforced with Sodium Laurate‐Modified Nano‐TiO₂: Effects of Sodium Laurate Concentration

Song

et al. 2018

Journal of Food Science

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Nano‐titanium dioxide (TiO2) was modified with the surfactant sodium laurate (SL) via ultrasonic microwave‐assisted technology to improve the dispersion of TiO2 in polymer matrices. As revealed by Fourier transform infrared spectroscopy, X‐ray diffraction, and scanning electron microscopy analyses, SL was well adsorbed onto the TiO2 surface through chemical bonding, resulting in SL‐modified TiO2 (TiO2‐SLx). The hydrophobicity and dispersibility of TiO2‐SLx increased significantly compared to unmodified nano‐TiO2. With an increase in the SL concentration from 5% to 15%, the agglomeration of TiO2‐SLx particles decreased considerably, while the particles were more uniform. TiO2‐SLx nanoparticles (3 wt%) were then incorporated into acetylated distarch phosphate/chitosan (ADPS/CS) blended matrices to reinforce the biopolymers. Relative to unmodified TiO2, TiO2‐SLx exhibited a better dispersion capability. Furthermore, as the SL concentration increased, the tensile strength (TS) of the composite films increased, while the elongation at break (E), water vapor permeability (WVP), and solubility all decreased. The composite film containing TiO2‐SL15 (TiO2 modified with 15% SL; ADPS/CS‐TiO2‐SL15 film) displayed the highest TS (31.50 MPa), which was 33.70% higher than that of the pure ADPS/CS film, whereas the ADPS/CS‐TiO2‐SL25 film exhibited the lowest E. Further, the ADPS/CS‐TiO2‐SL15 film displayed the lowest WVP (0.90 × 10−12 g·cm−1·s−1·Pa−1) and solubility (22.91%), which decreased by 30.23% and 26.03% compared to that of the pure ADPS/CS film, respectively. Therefore, SL modification and the use of ultrasonic microwave‐assisted technology are promising for the preparation of nanofillers for biopolymer reinforcement. Practical Application Nano‐titanium dioxide (TiO2) nanoparticles were modified using the anionic surfactant sodium laurate via ultrasonic‐microwave assisted technology, to improve the dispersion of the TiO2 nanoparticles in polymer matrices. Modified TiO2 nanoparticles were incorporated into acetylated di‐starch phosphate/Chitosan blend films, causing the tensile strength of the composite film to increase and the water solubility and water vapor permeability of the composite film to decrease, making the films suitable for packaging applications.

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Physicochemical and microbiological evaluation of treated Gastrodia elata with combination of slightly acidic electrolyzed water and lithium magnesium silicate under certain temperatures and different storage periods

Aleryani,

Al-Dalali,

Gao

et al. 2024

Food sci. technol. int.

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This study aimed to investigate the impact of slightly acidic electrolyzed water combined with lithium magnesium silicate hydrosol on the quality of fresh slices of Gastrodia elata under varying storage temperatures, including room temperature fresh slices of Gastrodia elata 25 °C and 37 °C. Fresh slices of Gastrodia elata 25 and 37 samples were stored for 13 days and extensively analyzed for color, weight loss, decay index, bacterial count, vitamin C, and polysaccharide contents during different storage periods. The findings revealed that the slightly acidic electrolyzed water + hydrosol treatment notably decreased weight loss and decay index compared to distilled water and slightly acidic electrolyzed water treatments. Moreover, fresh slices of Gastrodia elata treated with slightly acidic electrolyzed water + hydrosol exhibited untraceable bacterial counts after 3 days, with counts starting to increase after 7 days of storage. The bacterial counts rose from 3.25 to 5.36 and from 4.13 to 5.79 log CFU/g under both storage conditions. The application of slightly acidic electrolyzed water + hydrosol resulted in reduced chromaticity values of L*, a*, and b* on the Gastrodia elata surface, along with a lower percentage loss of polysaccharide contents and vitamin C compared to distilled water and slightly acidic electrolyzed water treatments. These results suggested that Gastrodia elata treated with slightly acidic electrolyzed water + hydrosol maintained its quality characteristics and nutritional attributes, exhibiting greater stability during storage.

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Nano-TiO2/Chitosan Coated Antibacterial Paper and Its Preservation Effect in Packaging Nanguo Pear

Cited by 3 publications

References 1 publication

Tio2/Polymer Nanocomposites for Antibacterial Packaging Application

Tio2/Polymer Nanocomposites for Antibacterial Packaging Application

Acetylated Distarch Phosphate/Chitosan Films Reinforced with Sodium Laurate‐Modified Nano‐TiO₂: Effects of Sodium Laurate Concentration

Physicochemical and microbiological evaluation of treated Gastrodia elata with combination of slightly acidic electrolyzed water and lithium magnesium silicate under certain temperatures and different storage periods

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Nano-TiO2/Chitosan Coated Antibacterial Paper and Its Preservation Effect in Packaging Nanguo Pear

Cited by 3 publications

References 1 publication

Tio2/Polymer Nanocomposites for Antibacterial Packaging Application

Tio2/Polymer Nanocomposites for Antibacterial Packaging Application

Acetylated Distarch Phosphate/Chitosan Films Reinforced with Sodium Laurate‐Modified Nano‐TiO2: Effects of Sodium Laurate Concentration

Physicochemical and microbiological evaluation of treated Gastrodia elata with combination of slightly acidic electrolyzed water and lithium magnesium silicate under certain temperatures and different storage periods

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Product

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About

Acetylated Distarch Phosphate/Chitosan Films Reinforced with Sodium Laurate‐Modified Nano‐TiO₂: Effects of Sodium Laurate Concentration