Food and Bioprocess Technology
·
2022
·Vol. 15
·期 8
·1821-1835
·
IF 5.581
Bai Tingting,Li Jiaxing,Murtaza Ayesha,Iqbal Aamir,Zhu Lijuan,Zhang Jiao,Zhang Bing,Xu Xiaoyu,Pan Siyi,Hu Wanfeng
The effects of eugenol emulsion (EUG) on the browning of fresh-cut yam during storage and its inhibition mechanism were studied. The EUG treatment group had a significant anti-browning ability, and the 1.5% EUG treatment group had the best effect. During the whole storage period, the activities of peroxidase (POD) and phenylalanine ammonia-lyase (PAL) decreased significantly after 1.5% EUG treatment, especially on day 4, when the activity of POD and PAL was 3.2% and 23% of that of the control group, respectively. Molecular docking experiments showed that EUG inhibited PAL activity by binding to the active center of PAL, a key browning enzyme. A decrease in total phenol content was also observed. In addition, after EUG treatment, catalase (CAT) activity was significantly increased, preventing the accumulation of reactive oxygen species (ROS)-H 2 O 2 . EUG inhibited membrane lipid metabolism, 1.5% EUG delayed the emergence of lipoxygenase activity peak, and malondialdehyde (MDA) content decreased by 75.67% compared with the control on 4 d. In comparison with control, EUG increased the scavenging capacity of DPPH, ABTS, and iron-reducing antioxidant capacity (FRAP). The mechanism may be that EUG enhances antioxidant capacity, thereby reducing ROS-induced membrane lipid metabolism, therefore, lowering the synthesis and oxidation of phenolic compounds, and ultimately inhibiting browning.
研究领域:
食品科学
·
植物生理学
·
采后技术
✓ 已验证
产品关联
DOI
高影响因子
RSC Advances
·
2014
·Vol. 5
·期 12
·9221-9227
·
IF 3.708
Wei Ni,Jianli Cheng,Xiaodong Li,Guifang Gu,Ling Huang,Qun Guan,Demao Yuan,Bin Wang
For electrochemical capacitors or supercapacitors, pseudo-capacitors via fast surface reactions are able to store/harvest more electrical energy when compared with electrochemical double layer capacitors (EDLCs) using an ion adsorption route. A combination of pseudo-capacitive materials, including oxides, nitrides and polymers, as well as understanding the charge storage mechanism and the development of advanced nanostructures with the latest generation of nanostructured lithium electrodes has brought the energy density of electrochemical capacitors closer to that of batteries. Electroactive polymeric cathodes with designed structures via electrospinning (without polymeric additives) and surfactant-free precipitation polymerization routes were herein fabricated for the abovementioned goals. The as-prepared polymeric active materials show an electrochemical capacitance of around 200 F g−1 with a higher cut-off voltage up to 4.2 V and an energy density up to 370 Wh kg−1 and power density up to 34 kW kg−1 in an organic electrolyte system.
研究领域:
材料科学
·
电化学
·
纳米技术
✓ 已验证
DOI
高影响因子
FOOD CHEMISTRY
·
2024
·
IF 8.5
Xueyin Ru,Wanli You,Jinglin Zhang,Feng Xu,Zhengguo Wu,Peng Jin,Yonghua Zheng,Shifeng Cao
The effects of γ-aminobutyric (GABA) on enzymatic browning , storage quality, membrane and reactive oxygen species (ROS) metabolism in fresh-cut stem lettuce were investigated. The results illustrated that GABA treatment delayed browning degree, polyphenol oxidase (PPO) activity and the expression of LsPPO . Meanwhile, higher chlorophyll and ascorbic acid contents were exhibited in GABA-treated stem lettuce, as well as the slower microbial propagation. Further investigation revealed that exogenous GABA application declined malondialdehyde content, electrolyte leakage and the enzyme activities of membrane metabolism, and the expression levels of related genes were also downregulated. In addition, GABA treatment scavenged ROS and strengthened the enzyme activities of ROS metabolism, as well as the expression levels of corresponding genes. Taken together, these findings implied that the repressed enzymatic browning and microbial propagation in GABA-treated stem lettuce were due to the inhibition of ROS accumulation, enhancement of membrane stability and increased resistance to oxidation .
研究领域:
食品科学
·
植物生理学
·
采后技术
✓ 已验证
DOI
PubMed
高影响因子
Food Packaging and Shelf Life
·
2025
·
IF 10.6
Linna Wang,Hesheng Wang,Limin Guo,Qiyuan Feng,Miaole Zhang,Youwei Yu,Shaoying Zhang
The development of green, edible functional coating materials is crucial for addressing food safety issues. Traditional petroleum-based packaging materials, however, pose significant environmental pollution and resource waste due to their poor biodegradability. In this study, carvacrol (CA) encapsulated in β-cyclodextrin (β-CD) to form microcapsules (CMP) was integrated with a polysaccharide base (CTS/PUL) to create CP-CMP edible coatings. The physicochemical properties and microstructure of these films were evaluated using scanning electron microscopy, and fourier transform infrared spectroscopy. Successful incorporation of CMP into the CP coating via hydrogen bonding was indicated by changes in functional group vibrations, enhancing the barrier and thermal stability of the CP-CMP coating. The antioxidant capabilities of the coating, demonstrated by high DPPH (80.49 %) and ABTS (89.40 %) radical scavenging activities, were remarkable. Furthermore, it significantly inhibited Staphylococcus aureus and Escherichia coli . Applying the developed CP-CMP coating to fresh-cut green peppers extended shelf life from 8 days (control) to 12 days through dual actions: membrane-disrupting antimicrobial activity and integrated antioxidant functions that preserved color and retarded VC and chlorophyll degradation. Thus, the CP-CMP coating exhibits potent antioxidant and antibacterial properties, emerging as a promising alternative to traditional packaging materials. This innovative approach holds significant potential for reducing the environmental impact of white pollution.
研究领域:
食品科学
·
高分子科学
·
材料科学
·
食品保鲜技术
·
微生物学
·
环境科学
✓ 已验证
产品关联
DOI
高影响因子
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
BIORESOURCE TECHNOLOGY
·
2023
·
IF 11.4
Mingxing Hu,Hanmin Zhang,Yu Tian
An innovative partial nitrification and short-cut sulfur autotrophic denitrification (PN-SSAD, NH 4 + -N → NO 2 − -N → N 2 ) coupled system in a single-stage SBR was proposed to treat low C/N wastewater with low material and energy consumption. Nearly 50 % alkalinity consumption and 40 % sulfate production were reduced in S 0 -SSAD compared with S 0 -SAD, whereas the autotrophic denitrification rate was increased by 65 %. In S 0 -PN-SSAD, the TN removal efficiency reached almost 99 % without additional organic carbon. Furthermore, pyrite (FeS 2 ) rather than S 0 served as the electron donor to optimize the PN-SSAD process. The practical sulfate production in S 0 -PN-SSAD and FeS 2 -PN-SSAD were about 38 % and 52 % lower than complete nitrification and sulfur autotrophic denitrification (CN-SAD), respectively. Thiobacillus was the major autotrophic denitrification bacteria in S 0 -PN-SSAD (34.47 %) and FeS 2 -PN-SSAD (14.88 %). Nitrosomonas and Thiobacillus played a synergistic effect in the coupled system. FeS 2 -PN-SSAD is expected as an alternative technology for nitrification and heterotrophic denitrification (HD) in treating low C/N wastewater.
研究领域:
环境工程
·
微生物学
·
水处理技术
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Journal of Energy Chemistry
·
2022
·
IF 13.599
Fan Peng,Youqi Chu,Yu Li,Qichang Pan,Guangchang Yang,Lixuan Zhang,Sijiang Hu,Fenghua Zheng,Hongqiang Wang,Qingyu Li
The Nickel-rich layered cathode materials charged to 4.5 V can obtain a specific capacity of more than 200 mAh g −1 . However, the nickel-rich layered cathode materials suffer from the severe capacity fade during high-voltage cycling, which is related to the phase transformation and the surface sides reactions caused by the lattice oxygen evolution. Here, the simultaneous construction of a Mg, Ti-based surface integrated layer and bulk doping through Mg, Ti surface treatment could suppress the lattice oxygen evolution of Ni-rich material at deep charging. More importantly, Mg and Ti are co-doped into the particles surface to form an Mg 2 TiO 4 and Mg 0.5– x Ti 2– y (PO 4 ) 3 outer layer with Mg and Ti vacancies. In the constructed surface integrated layer, the reverse electric field in the Mg 2 TiO 4 effectively suppressed the outward migration of the lattice oxygen anions, while Mg 0.5– x Ti 2– y (PO 4 ) 3 outer layer with high electronic conductivity and good lithium ion conductor could effectively maintained the stability of the reaction interface during high-voltage cycling. Meanwhile, bulk Mg and Ti co-doping can mitigate the migration of Ni ions in the bulk to keep the stability of transition metal–oxygen (M−O) bond at deep charging. As a result, the NCM@MTP cathode shows excellent long cycle stability at high-voltage charging, which keep high capacity retention of 89.3% and 84.3% at 1C after 200 and 100 cycles under room and elevated temperature of 25 and 55 °C, respectively. This work provides new insights for manipulating the surface chemistry of electrode materials to suppress the lattice oxygen evolution at high charging voltage.
研究领域:
材料科学
·
电化学
✓ 已验证
DOI
高影响因子
ACS Sustainable Chemistry & Engineering
·
2023
·
IF 8.4
Fengsong Liu,Chenghao Li,Caiwei Liu,Jialin Zheng,Kaiyue Bian,Hong Bai,Yan Zhang,Yifang Cao,Yijia Xie,Xinglong Xiao
The widespread utilization of the polyvinyl alcohol (PVA) film is significantly hindered by two prominent limitations: water sensitivity and low gas permeability. In this work, a novel PVA film coated with monoglyceride (MG) and filled with diatomaceous earth (DS) was fabricated to address these issues. Scanning electron microscopy and 3D morphology revealed that the Ra value improved from 3.72 to 7.21 μm. Also, the successful coating of MG was confirmed by X-ray photoelectron spectroscopy and Fourier transform infrared spectroscopy. Pull-off adhesion tests proved that the film containing 0.5 g of MG exhibited the highest adhesive properties. The PVA/MG/DS film had the highest contact angle of 122.32°, the lowest water vapor permeability of 7.19 g/m2/day, and the lowest oxygen permeability of 55.35 (cm3 × cm × cm2 × s × Pa)−1. Moreover, this type of film exhibited higher light transmittance, better thermal stability, and greater mechanical properties than pure PVA film. Consequently, the PVA/MG/DS film displayed superior performance in preserving the freshness and quality of fresh-cut mango, with a lowest weight loss of 4.48%, a lowest total soluble solids of 7.98%, a greatest titratable acidity of 0.88%, a highest ascorbic acid of 76.67 mg/100 g, and best sensory quality.
研究领域:
食品科学
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
Foods
·
2024
·Vol. 13
·期 10
·1526
·
IF 4.7
Yu Liu,Jiayi Zhang,Yaqin Zhao,Yinqiu Bao,Zhengguo Wu,Yonghua Zheng,Peng Jin
Fresh-cut potatoes (Solanum tuberosumL.) are susceptible to browning and microbial contamination during storage. In this study, the effects of trans-2-hexenal (E2H), ascorbic acid (VC), dimethyl dicarbonate (DMDC), and the combined treatment of E2H, VC, and DMDC on quality deterioration in fresh-cut potatoes were investigated. The response surface methodology (RSM) demonstrated that E2H, VC, and DMDC concentrations of 0.010%, 0.65%, and 240 mg/L, respectively, were the optimum conditions for fresh-cut potato preservation. Further analysis showed that the combined treatment of E2H, VC, and DMDC was the most effective method of reducing quality deterioration in potatoes compared to the control and individual treatments. Furthermore, the combined treatment of E2H, VC, and DMDC could decrease the accumulation of reactive oxygen species (ROS) via improving antioxidant enzyme activities. Meanwhile, energy-metabolism-related enzyme activities and glutamate decarboxylase (GAD) activity were enhanced, while γ-aminobutyric acid transaminase (GABA-T) activity was reduced via the combined treatment of E2H, VC, and DMDC, which contributed to maintaining high energy levels and GABA content in potatoes. These findings suggested that the combined treatment of E2H, VC, and DMDC could protect membrane integrity through enhancing antioxidant capacity, energy levels, and GABA content to maintain quality in fresh-cut potatoes.
研究领域:
食品科学
·
植物生理学
·
采后技术
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2020
·
IF 4.65
Qiwen Ran,Hongyuan Zhao,Youzuo Hu,Shuai Hao,Jintao Liu,Hao Li,Xingquan Liu
Achieving a highly stabilized surface structure is the key to successfully enhancing the cycling stability of LiNi 0.8 Co 0.1 Mn 0.1 O 2 (NCM) cathode material for Li-ion batteries at high cut-off voltage (4.5 V). In this work, we report a highly surface-stabilized NCM material via a high-valent titanium ion (Ti 4+ )-induced nanostructured hybrid surface with a core-shell structure. Consequently, the Ti-modified LiNi 0.8 Co 0.1 Mn 0.1 O 2 cathode provides an excellent cycling stability with 92.3% capacity retention (100 cycles, 0.5C, 2.7–4.5 V). This proposed hybrid core-shell nanostructure prominently mitigates the surface structural degradations, continuous microcracking and parasitic reactions, effectively improving the surface structural stability . This efficient strategy provides a step towards further commercial application of the LiNi 0.8 Co 0.1 Mn 0.1 O 2 material and can be extended to other layered cathode materials.
研究领域:
材料科学
·
电化学
·
储能技术
·
纳米材料
·
锂离子电池
✓ 已验证
DOI
高影响因子
Food and Bioprocess Technology
·
2015
·Vol. 8
·期 5
·1011-1019
·
IF 2.691
Yang Huqing,Zheng Jianying,Huang Chengqian,Zhao Xiaofei,Chen Huiyun,Sun Zhidong
This study was conducted to investigate the effects of aqueous chlorine dioxide (ClO 2 ) combined with chitosan coating on microbial growth and quality maintenance of fresh-cut bamboo shoots during cold storage. Fresh-cut shoots respiration rate, weight loss, firmness, lignin, colour, microbial and activities of phenylalanine ammonia lyase (PAL), cinnamyl alcohol dehydrogenase (CAD), peroxidase (POD) and polyphenol oxidase (PPO) were measured. The results indicated that treatment with 28 mg L −1 ClO 2 plus chitosan coating inhibited increase in respiration rate and firmness, delayed browning and lignification and reduced microorganism counts of total aerobic bacteria and yeasts and moulds compared to control treatment. The efficiency was better than that of ClO 2 or chitosan treatment alone. Furthermore, combination of ClO 2 and chitosan inhibited the activities of PAL, CAD, POD and PPO throughout the storage period. Our study suggests that ClO 2 plus chitosan coating treatment may be a promising method of maintaining fresh-cut bamboo shoot quality and extending their postharvest life.
研究领域:
采后生理学
·
食品科学
·
园艺科学
·
食品保鲜
✓ 已验证
DOI
高影响因子
POSTHARVEST BIOLOGY AND TECHNOLOGY
·
2026
·
IF 6.8
Jiahui Jiang,Qianlong Shi,Dan Li,Qingmin Chen,Cong Han,Jing Wei,Maorun Fu,Huaimei Cao,Xiaofei Xin
Vacuum-packed lotus roots slices are prone to swelling and quality deterioration when stored above 15 °C. Our study aimed to investigate the effect of combined treatment of 0.7 % lactic acid (LA), 0.7 g L −1 ε-poly- L -lysine (ε-PL), and 0.3 % sodium isoascorbate (SI) solution on the swelling, microbial growth, antioxidant and quality characteristics of vacuum-packed lotus root slices stored at 20 °C for 6 d. Results showed that, the primary bacterial genera responsible for bag swelling were identified as Tolumonas , Aeromonas , and Enterobacter, utilizing 16S rDNA amplicon sequencing. Compared with the control, the LA + ε-PL + SI treatment exhibited inhibitory effect on these genera, reduced the relative abundance of Tolumonas , Aeromonas , and Enterobacter from 65.97 %, 13.20 %, and 3.85–1.07 %, 0.20 %, and 0.44 %, respectively, yielding suppression rates of 98.4 %, 98.5 %, and 88.6 %, thus, effectively preventing swelling. Moreover, lotus root treated with LA + ε-PL + SI showed the better color, quality attributes. These findings indicated that the LA + ε-PL + SI treatment successfully prevented swelling, inhibited microbial growth, prolonged the shelf life, and preserved the better quality of vacuum-packed fresh cut lotus root.
✓ 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）