Article
Biochemistry & Molecular Biology
Fatima Zohra Yakdoumi, Assia Siham Hadj-Hamou, Nahla Rahoui, Md Mushfequr Rahman, Volker Abetz
Summary: In this study, poly(lactic acid) nanocomposite films with improved properties for food packaging were prepared by incorporating modified carbon nanotubes. The modified carbon nanotubes showed significantly enhanced crystallization rate, mechanical properties, barrier properties, and antimicrobial and antifungal activity. The nanocomposite films exhibited increased Young modulus, hardness, and improved barrier properties compared to pure poly(lactic acid) films.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2022)
Article
Food Science & Technology
Afrinal Firmanda, Farah Fahma, Endang Warsiki, Khaswar Syamsu, I. Wayan Arnata, Dewi Sartika, Lisman Suryanegara, Qanytah, Agus Suyanto
Summary: Cellulose nanofibers (CNF) and nanocrystalline cellulose (CNC) are biopolymers with unique physicochemistry properties, which improve nanocomposites packaging characteristics. Essential oils (EOs)-based antimicrobial agents incorporated with NC impact packaging characteristics such as transparency, water vapor transmission rate, and volatile compounds release rate. The antimicrobial packaging development needs to consider aspects of sensory, antioxidant benefits, preparation method, toxicity, aromatherapy effect, sensitivity to water, and cost.
Article
Food Science & Technology
W. K. Ng, W. S. Chow, H. Ismail
Summary: This study aimed to enhance the antimicrobial properties of PLA/CCNC by partially substituting silver nanoparticles with 5-nitroisatin as an antimicrobial agent. The hybridization of NI and AgNP demonstrated a synergistic antimicrobial effect, resulting in a larger inhibition zone and high growth inhibitory rate in the PLA/CCNC nanocomposite. The migration of silver ions from the PLA nanocomposite films remained below regulated levels, indicating that the PLA/CCNC-5/Ag/NI exhibited lower silver migration and higher antibacterial efficiency compared to PLA/CCNC-5/Ag.
FOOD PACKAGING AND SHELF LIFE
(2021)
Article
Materials Science, Multidisciplinary
Alice Boarino, Aigoul Schreier, Yves Leterrier, Harm-Anton Klok
Summary: Blending lignin nanoparticles with PLA can improve the antioxidant and UV-barrier properties of PLA. PLA-grafted lignin nanoparticles, prepared via organocatalyzed lactide ring-opening polymerization, can be uniformly dispersed in PLA and enhance the optical properties and antioxidant activity of the blend films.
ACS APPLIED POLYMER MATERIALS
(2022)
Article
Food Science & Technology
Xuan Zheng, Wenxia Nie, Jun Xu, Hong Zhang, Xinle Liang, Zhongjun Chen
Summary: This study isolated lactic acid bacteria (LAB) strains with antifungal activities from traditional Chinese fermented rice vinegar. The supernatant of Lacticaseibacillus paracasei ZX1231 showed significant inhibitory activities against various fungi. Cyclic dipeptides (CDPs) derived from the supernatant were found to inhibit the filamentation of Candida albicans. When combined with a bacterial nanocellulose matrix, the supernatant was able to create active quality packaging films that effectively inhibited fungal growth and prolonged the shelf life of bread, beef, cheese, and soy sauce.
FOOD RESEARCH INTERNATIONAL
(2022)
Article
Biochemistry & Molecular Biology
Fuyou Yu, Xiang Fei, Yunqing He, Hui Li
Summary: In this study, PLA/ACNC/ZnO ternary composite films were prepared by solution-casting method, showing improved mechanical, barrier, antibacterial, and UV blocking properties. The migration amount of Zn2+ from the composite film to food simulants was below the safety standard.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2021)
Article
Materials Science, Multidisciplinary
Shubham Sharma, Kalpani Y. Perera, Dileswar Pradhan, Brendan Duffy, Amit K. Jaiswal, Swarna Jaiswal
Summary: The incorporation of tannic acid and gallic acid in a biodegradable polymer blend resulted in composite films with improved UV barrier properties and increased tensile strength. These composite films also exhibited antibacterial effects, inhibiting the growth of E. coli and L. monocytogenes. Additionally, the tannic acid composite film showed potential for maintaining and enhancing the quality of cherry tomatoes during storage.
Article
Biochemistry & Molecular Biology
Udangshree Boro, Aradhana Priyadarsini, Vijayanand S. Moholkar
Summary: In this study, nanocomposites of polylactic acid (PLA) with clove essential oil (CEO) and alkali treated halloysite nanotubes (NHNT) were synthesized. The nanocomposite films showed enhanced physical, thermal, mechanical and water vapor barrier properties. Practical packaging tests on apples stored at room temperature showed substantially improved results compared to PLA in terms of weight loss, microbial count, firmness, acidity, pH, and total soluble solids. The results demonstrate the potential of PLA/CEO/NHNT nanocomposite films as active food packaging material.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2022)
Article
Food Science & Technology
Honorine Gonon, Atcharawan Srisa, Khwanchat Promhuad, Vanee Chonhenchob, Nattinee Bumbudsanpharoke, Lerpong Jarupan, Nathdanai Harnkarnsujarit
Summary: Poly(lactic acid) (PLA) with enhanced antimicrobial properties was used as sustainable food packaging material to control microbial growth and reduce waste. PLA trays containing carvacrol (CAR) and cinnamaldehyde (CIN) as natural antimicrobial essential oils (EOs) were developed through cast sheet extrusion and thermoforming. The incorporation of CAR and CIN into PLA altered its structure and properties, resulting in clear trays with modified X-ray diffraction angles and reduced mechanical strength. However, these trays showed enhanced antimicrobial capacity against Escherichia coli and delayed mold growth, making them suitable for bakery product packaging.
FOOD PACKAGING AND SHELF LIFE
(2023)
Article
Materials Science, Multidisciplinary
Udangshree Boro, Vijayanand S. Moholkar
Summary: Nanocomposites of PLA with ZnO deposited HNT were synthesized by ultrasound assisted solvent casting. The synthesized films showed improved physical, thermal, mechanical properties, UV-shielding, barrier properties, and antimicrobial activities for food packaging applications. The 2 wt% ZnO@HNT nanocomposite film exhibited the best performance and demonstrated potential as an effective food packaging material.
MATERIALS TODAY COMMUNICATIONS
(2022)
Article
Polymer Science
Magdalena L. Iglesias-Montes, Michelina Soccio, Valentina Siracusa, Massimo Gazzano, Nadia Lotti, Viviana P. Cyras, Liliana B. Manfredi
Summary: A fully bio-based blend of poly(lactic acid) and poly(3-hydroxybutyrate) was developed, with improved properties and biodegradability through the addition of chitin nanoparticles. This research shows potential for application as biodegradable packaging materials.
Article
Engineering, Chemical
Premkumar Anil Kothavade, Prashant Yadav, Aakash D. Nidhankar, Arun Torris, Harshawardhan Pol, Abdullah Kafi, Stuart Bateman, Santosh Babu Sukumaran, Kadhiravan Shanmuganathan
Summary: The research on 3D printing of luminescent composite materials with enhanced mechanical properties has been limited. In this study, a PLA composite with improved toughness and high solid-state fluorescence quantum yield was prepared and characterized. The addition of only 1 wt% PBA-m-CNF and 10 wt% TPU into PLA led to a significant increase in toughness and tensile modulus. The 3D printed composite exhibited a ductile failure mode and a high solid-state fluorescence quantum yield. The findings suggest the potential applications of such functional PLA composites in the fabrication of complex-shaped sensors and optical light pipes.
POLYMER ENGINEERING AND SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Aravind Madhavan, R. Reshmy, K. B. Arun, Eapen Philip, Raveendran Sindhu, Bipin G. Nair, Mukesh Kumar Awasthi, Ashok Pandey, Parameswaran Binod
Summary: Non-biodegradable plastics have a negative impact on living things globally. Nanocellulose, a biopolymer, is versatile and used in various fields including food packaging and wound dressing. The synthesis of nanocellulose films incorporating Murraya koenigii and its potential as an antibacterial packaging material are discussed in detail.
SUSTAINABLE CHEMISTRY AND PHARMACY
(2023)
Article
Food Science & Technology
Chengyu Wang, Long Mao, Jin Yao, Heping Zhu
Summary: In this study, natural plant polyphenol-proanthocyanidin (PAC) and layered clay-layered double hydroxides (LDHs) were incorporated into poly(vinyl alcohol) (PVA) coatings to create PAC/PVA and PAC functionalized LDHs (LDHs@PAC-Cu)/PVA dual active coatings, which were then applied to PLA base films to develop PLA active films. The results demonstrated that the addition of LDHs@PAC-Cu significantly enhanced the active packaging functions and gas barrier properties of PLA films. Furthermore, the antioxidant and antibacterial properties of PLA films reached high levels, and the shelf life of pasteurized milk was extended. Active substances release test showed that LDHs@PAC-Cu not only delayed the release of active substances in the early stage, but also supplemented their release in the later stage, effectively prolonging the shelf life of food. Therefore, PLA active films have great potential in active food packaging.
LWT-FOOD SCIENCE AND TECHNOLOGY
(2023)
Review
Polymer Science
Sixiang Zhai, Qingying Liu, Yuelong Zhao, Hui Sun, Biao Yang, Yunxuan Weng
Summary: This paper summarizes the research progress of modifying polylactic acid with lignin and cellulose in recent years, focusing on the effects of lignin and cellulose on the mechanical properties of polylactic acid composite materials. It is expected that the development of polylactic acid composite materials will be improved in this regard.
