Nano Research
·
2024
·
IF 9.5
Tang Jianfu,Fan Xueqin,Huang Haozhou,Dong Xiaofei,Li Xueqi,Wang Peiru,Yin Ran,Xie Yanjun,Li Jian,Tan Gang,Pang Zhenqian,Gan Wentao
Using biodegradable material derived from renewable resources as petroleum-based plastics replacement is a promising way towards sustainable development. However, the insufficient mechanical properties and complex manufacturing process of bioplastics still need to be improved for high-quality food packages. Herein, we report a top-down strategy to transform natural wood into a clear wood packaging film through scalable delignification and polyvinyl alcohol (PVA) infiltration. The wood packaging film demonstrates a laminated structure with completely collapsed cell walls and PVA intertwined together after energy-saving air drying, resulting in high light transmittance with low haze, good mechanical performance, and high barrier performance for oxygen and water vapor. Molecular dynamics simulations reveal the underlying fracture mechanism between cellulose and PVA, which effectively enhances the Young’s modulus and strength of the wood packaging film. These findings contribute to the development of biodegradable and strong packaging materials, as well as other food-related applications, using sustainable wood.
研究领域:
材料科学
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可持续发展
·
食品包装
✓ 已验证
产品关联
DOI
高影响因子
INDUSTRIAL CROPS AND PRODUCTS
·
2023
·
IF 5.9
Zihao Wang,Xuan Wang,Yaoli Zhang
Based on the preparation of transparent bamboo, this study optimized the preparation process by selecting different position of bamboo and adjusting the delignification time. It is concluded that the transparent bamboo prepared from middle layer bamboo after 5 h delignification treatment has the best comprehensive performance, with light transmittance of 89.6% and haze of 43.3%. It has excellent tensile strength (89.7 MPa), good thermal insulation performance (0.187Wm −1 K −1 ), certain UV aging resistance, thermal dimensional stability and waterproof properties for outdoor conditions. It can not only select transparent bamboo with the best performance, but also save raw materials as much as possible, so that its application range is wider.
研究领域:
材料科学
·
植物学
✓ 已验证
产品关联
DOI
高影响因子
BMC Chemistry
·
2020
·Vol. 14
·期 1
·1-7
·
IF 0
Ye Changwen,He Chen,Zhang Bowen,Wang Lixuan,Wang Lufeng
Zizania latifolia is easily lignified after harvesting, leading to the degradation of food quality and commercial value. Thus, this study evaluated the effect of radio frequency (RF) treatments on lignification inhibition of Zizania latifolia . The results showed that the lignin content of Zizania latifolia treated with RF decreased significantly compared with the control group. At the 7th day of storage, the phenylalanine ammonia lyase activity of the 90 W RF treatment group decreased by 52.9% compared with the initial value. The activities of peroxidase and polyphenol oxidase in the stems of Zizania latifolia were significantly ( p < 0.05) decreased after RF treatments. Besides, a decrease in conversion rate of O 2 − and H 2 O 2 to downstream products was observed, indicating that the related invertases were inhibited by RF treatment. All of these showed that RF treatments contribute to inhibit or delay the lignification of Zizania latifolia , providing a better taste and quality for products.
研究领域:
植物学
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食品科学
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农业科学
✓ 已验证
产品关联
DOI
PubMed
POSTHARVEST BIOLOGY AND TECHNOLOGY
·
2020
·
IF 4.303
Li Li,Changbao Li,Jian Sun,Ming Xin,Ping Yi,Xuemei He,Jinfeng Sheng,Zhugui Zhou,Dongning Ling,Fengjin Zheng,Jiemin Li,Guoming Liu,Zhichun Li,Yayuan Tang,Ying Yang,Jie Tang
The present study investigated influences of ultraviolet light C (UV-C; 2 kJ m −2 ) irradiation and high-oxygen modified atmosphere packaging (MAP; 80 % O 2 , 10 % CO 2 and 10 % N 2 ) on physiological quality, microbial growth and lignification metabolism of fresh-cut carrots. After 15-d cold storage, comparing with either treatment alone, the combination of UV-C irradiation and high-oxygen MAP (abbr. UV-C + MAP) more obviously inhibited firmness, weight loss, ascorbic acid, total carotenoid and γ-aminobutyric acid declines, reduced respiration and ethylene production rates as well as delayed bacterial growth. UV-C + MAP more strongly restrained whiteness index, total phenolic, lignin and malondialdehyde increases. Furthermore, UV-C + MAP treatment more efficiently retarded lignin synthesis by suppressing phenolic metabolism-related enzyme (phenylalanine ammonialyase, PAL; polyphenoloxidase, PPO; peroxidase, POD) activities and their gene ( DcPAL ; DcPPO ; DcPOD ) expressions. Above results indicated that UV-C + MAP exhibited synergistic effects in retaining physiological quality, delayed senescence process, reducing microbial growth, alleviating lignification degree, and lessened surface whitening. Therefore, UV-C + MAP could maintain overall quality and extend shelf-life during storage of fresh-cut carrots.
研究领域:
食品科学
·
植物生理学
✓ 已验证
DOI
高影响因子
Forests
·
2025
·Vol. 16
·期 1
·119
·
IF 2.5
Xinqi Gao,Yafang Lei,Teng Sun,Yuanze Ma,Hao Guan,Li Yan
Enhancing the decay resistance ofPopulus tomentosawood through environmentally friendly methods is crucial for improving its durability and market competitiveness. Lignified twigs (LT), typically unsuitable as timber due to their small diameter, are rich in lignin, which degrades during thermal induction to produce antifungal organic compounds. In this context, the objective of this study was to develop a lignified twig preservative (LTP) by thermal induction from the LT ofActinidia chinensisvar.Jinyang. The antifungal activity of LTP under varying thermal conditions was analyzed, along with its chemical composition. Enzyme activity, cell membrane integrity, and respiratory metabolism in fungi treated with LTP were examined to elucidate antifungal mechanisms. Additionally, the decay resistance of LTP-treated wood was evaluated. Results revealed that LTP produced under N2at 220 °C exhibited robust antifungal activity againstTrametes versicolorandGloeophyllum trabeum, attributed to phenolic compounds such as syringaldehyde, syringone, vanillin, and vanillone. LTP inhibited fungal cellulases, hemicellulases, and ligninases by 30%–60%, disrupted cell membrane functionality, and suppressed respiratory metabolism. Poplar wood treated with LTP demonstrated significantly enhanced decay resistance (mass loss < 10%). This thermal-induced feedback pattern shows great potential for LT in wood preservation.
研究领域:
植物学
·
材料科学
·
环境科学
·
微生物学
✓ 已验证
产品关联
DOI
高影响因子
FOOD CHEMISTRY
·
2024
·
IF 8.5
Zihan Cai,Weinan Huang,Jiahao Zhong,Jiayue Jin,Di Wu,Kunsong Chen
In this work, the MeJA-loaded gelatin/pullulan/chitosan composite biofilm was prepared to inhibit the chilling lignification of the loquat fruit during storage at 0 °C. The firmness and lignin content were decreased by 89 % and 81.77 % after MeJA-loaded biofilm treatment. Malondialdehyde (MDA) production was almost completely suppressed and chilling injury of loquat fruit was significantly reduced. Enzyme activity results show that the biofilm alleviated chilling lignification mainly by inhibiting peroxidase (POD) activity in the phenylpropanoid pathway (PCCs = 0.715, with lignin content). Also, the conventional MeJA vapor treatment only alleviated lignification on day 3, but the biofilm treatment had a better and more sustained effect throughout the whole storage due to its sustained release ability. Besides, the biofilm had good mechanical properties, transparency and water vapor transmission rate. This work indicates that loading preservatives into biofilms has a promising application prospect for inhibiting the postharvest quality deterioration of fruit and vegetables.
研究领域:
采后科学
·
食品科学
·
植物生理学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
FOOD CHEMISTRY
·
2025
·
IF 9.8
Jiayue Jin,Zihan Cai,Weinan Huang,Jiahao Zhong,Di Wu,Chen Chen,Bangdi Liu,Yanna Shi,Xian Li,Kunsong Chen
Loquat fruit is vulnerable to postharvest chilling lignification. Fumigation with methyl jasmonate (MeJA) could inhibit the lignification, but is inefficient. The present study developed nanoparticles encapsulated with MeJA (MeJA@NPs) with high encapsulation efficiency (94.83 %) and 30 d sustained release capability. Then, a transparent, edible, in situ coating was prepared by blending a gelatin/pullulan solution with MeJA@NPs. The coating could continuously inhibit chilling lignification of loquat fruit, where the firmness increase and lignin accumulation were reduced by 82.7 % and 52.3 % respectively after 6 d of storage. Further analysis of the inhibition mechanism showed that the coating suppressed the peroxidase activity, thereby blocking lignin polymerization. Besides, the coating could also enhance the antioxidant capacity of fruits via activating cinnamate 4-hydroxylase and 4-coumarate: CoA ligase and upregulating the superoxide dismutase, catalase, and ascorbate peroxidase activities. In conclusion, our work provides a novel approach of in situ nanoparticle coating on fruits for postharvest preservation.
研究领域:
采后生理学
·
食品科学与技术
·
农业纳米技术
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植物生物化学
·
园艺科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
FOOD CHEMISTRY
·
2023
·
IF 8.8
Peng Zhu,Dongze Niu,Sainan Zhang,Chunyu Li,Dongmin Yin,Junqiang Zhi,Lili Zhang,Xingmei Jiang,Jianjun Ren
This study aimed to examine the effects of sterilization methods on the degradation ability and bioactive compound production of Irpex lacteus in wheat straw. Following 28 days of fermentation, the lignin content of samples autoclaved and pasteurized at pH 4.5 was reduced by 16.0 % − 21.7 % compared to pasteurized samples without pH adjustment, accompanied by a significant increase in sugar yield ranging from 83.30 % − 96.35 %. Autoclaved samples exhibited the lowest total phenol content and antioxidant activity ( P < 0.05). Bacillus occupied an absolute advantage (89.1 %) in samples pasteurized at pH 4.5, whereas 10 bacterial genera exhibited abundances above 1 % in pasteurized samples without pH adjustment. Furthermore, 45.1 % − 47.2 % of the metabolites comprised lipids and lipid-like molecules, and some of them were improved by pasteurization at pH 4.5. Overall, pasteurization at acidic conditions is an effective sterilization method for the fungal conversion of wheat straw.
研究领域:
生物技术
·
微生物学
·
生物化学
·
农业科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
INDUSTRIAL CROPS AND PRODUCTS
·
2025
·
IF 6.2
Honghui Yan,Xiangyu Wang,Yi Zhu,Yuding Zhu,Ruiqi Xin,Shunze Zhang,Meiling Chen,Song Li,Jeonghun Kim,Wenkai Zhu
Free formaldehyde poses significant health risks as a prevalent indoor organic pollutant, driving demand for efficient and renewable adsorption solutions. While Fe-CoPBA bimetallic metal-organic frameworks show potential for formaldehyde removal, their powdered crystalline form presents practical limitations including poor recyclability and secondary contamination. Herein, we developed a novel Fe-CoPBA@bamboo composite (Fe-Co@B) through solution blending, leveraging bamboo's inherent micro-nano hierarchical pores for Fe-CoPBA encapsulation. The Fe-CoPBA nanoparticles (NPs) successfully integrated into delignified bamboo conduits through hydroxyl-mediated ligand bonding and van der Waals interactions. Formaldehyde removal tests demonstrated Fe-Co@B's dual adsorption-catalysis mechanism effectively eliminates indoor free formaldehyde. The Fe-Co@B maintained stable removal efficiency for formaldehyde through 10 regeneration cycles while preserving structural integrity. Furthermore, the Fe-Co@B exhibits high reusability along with moisture and deformation resistance. Therefore, this work contributes to solving the current problem of indoor free formaldehyde pollution and provides research ideas for the development of new functional bamboo-based products.
研究领域:
环境科学
·
材料工程
·
纳米技术
·
室内空气质量
·
可持续化学
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）