FOOD CHEMISTRY
·
2025
·
IF 9.8
Xiaotong Huang,Qi Chen,Xianling Wei,Jingjing Wang,Zhi Lu,Qingping Wu,Chao Li,Xiaofang Zeng,Weidong Bai,Hao Dong
In this study, the effects of various sources polysaccharides, including chitosan, hawthorn polysaccharide and lentinan, on MeIQx (2-amino-3,8-dimethylimidazole[4,5- f ] quinoxaline) formation in roasted beef patties were investigated. Results showed that hawthorn polysaccharide had the strongest inhibitory effect, while only chitosan decreased free MeIQx in a dose-dependent manner. For bound MeIQx, the inhibitory effect of chitosan, hawthorn polysaccharide, and lentinan were 14 %, 22 %, and 39 % at 0.1 % addition. When increased to 0.5 %, the inhibition rate was 26 %, 40 %, and 36 %. None of the polysaccharides increased the inhibition rate of MeIQx at 1 % addition (25 %, 36 %, and 33 %, respectively). Overall, the MeIQx content may be related to the polysaccharides themselves have excellent water retention capability. Additionally, polysaccharides effectively eliminated the intermediates. The carbonyl content and TBARS were reduced due to the free radical scavenging activity of polysaccharides. This study provides a theoretical basis for the polysaccharides to reduce MeIQx in high-temperature meat processing.
研究领域:
食品化学
·
毒理学
·
食品加工安全
·
分子化学
·
营养科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Processes
·
2024
·Vol. 12
·期 4
·842
·
IF 2.8
Yan Li,Yu Ma,Fan Chang,Haiyun Zhu,Chengshan Tian,Fengan Jia,Yang Ke,Jiakun Dai
Using slow-release fertilizer is one of the sustainable strategies to improve the effectiveness of fertilizers and mitigate the environmental pollution caused by excess usage of fertilizer. In this study, a slow-release urea fertilizer with water retention and photosensitivity properties was prepared by a two-step method. It was characterized by Fourier transform infrared spectroscopy, thermogravimetric analysis, scanning electron microscopy and an infrared camera. This fertilizer can prolong the release period of urea, improve water-retention capacity of soil, and carry out photothermal conversion under illumination. Comparing four release kinetics models, the Ritger–Peppas model was the best fitting model for releasing behavior in soil, and diffusion followed the Fickian mechanism. The application of fertilizer on winter wheat was carried out to intuitively evaluate the fertilizer’s effects on promoting plant growth and resisting water stress. Thus, this study provides a new strategy for improving fertilizer utilization rate and maintaining soil moisture, which will be beneficial for sustainable agriculture.
研究领域:
农业科学
·
环境科学
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2024
·
IF 4.9
Qiang Liu,Yitao Yu,Guanglai Zhu,Haiming Liu,Chuanxing Jiang,Wei Zhang,Yuanyue Li,Qiang Xue,Yong Wan,Bing Li,Xian Zhang,Caifeng Dai,Zhenhua Wang
The hybrid super absorbent resin (SAR), Poly(acrylicacid-co-acrylamide-co-2-acrylamido-2-methyl-1-propane sulfonic acid) based on zeolite synthesized from solid waste slag (P(AA-co-AM-co-AMPS)/zeolite) was synthesized. The chemical and structural characteristics of the materials were examined through FTIR, XRD , and SEM studies. In the presence of zeolite, the flat surface of the composite transformed into interconnected porous structure . The deionized water equilibrium swelling capacity of the hybridized SAR (835.79 g/g) was higher than that of the pure SAR (524.53 g/g). As much as 40 % of the water was released from the fully swollen hybrid SAR when it was centrifuged. P(AA-co-AM-co-AMPS)/zeolite had a swelling loss rate just of 27.64 % after five swelling/drying cycles. In addition, it still had good absorption in ionic salt solutions of different concentrations and good water retention at different temperatures. This confirmed that the hybridized SAR had excellent water holding capacity and salt solution adsorption. The FTIR and XRD results showed that the excellent performance of the hybridized SAR may originate from the interconnection of the zeolite and the pure SAR. The P(AA-co-AM-co-AMPS)/zeolite may be utilized as an agricultural water retaining agent.
研究领域:
材料科学
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环境科学
·
农业科学
✓ 已验证
产品关联
DOI
高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2020
·
IF 5.162
Dan Zheng,Bo Bai,Yunhua He,Na Hu,Honglun Wang
The multi-responsive controlled-release system could enhance crop yield while improving utilization efficiency of agrochemicals, and minimize environmental pollution caused by agrochemicals overuse. This work reports a novel Ca-alginate/Poly( N -isopropylacrylamide)@polydopamine (Ca-alginate/PNIPAm@PDA) microsphere to control the agrochemicals release. Microsphere with a semi-interpenetrating network, which contained pH-sensitive Ca-alginate, temperature-sensitive poly( N -isopropylacrylamide) (PNIPAm), and sunlight-sensitive polydopamine (PDA), was characterized by thermogravimetric analysis , zeta potential , Fourier transform infrared spectroscopy , and scanning electron microscopy to prove the successful synthesis. Moreover, the comprehensive performances, including photothermal conversion, water absorbency, water retention, and controlled-release agrochemicals behaviors, were systematically investigated. The results indicated that the composite microsphere was a prosperous water and agrochemicals manager to effectively retain water and control the release of agrochemicals by external stimulation. Consequently, the Ca-alginate/PNIPAm@PDA microsphere with outstanding water-retention and controlled-release capacities is economical and eco-friendly and thus is promising for utilization as water and agrochemicals controlled-release carrier material in agriculture applications.
研究领域:
农业科学
·
材料科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
LANGMUIR
·
2022
·
IF 4.331
Wenxu Zhang,Qian Liu,Yan Xu,Xuyang Mu,Hongling Zhang,Ziqiang Lei
To alleviate soil impoverishment and water shortage in desert areas, as well as to reduce the impact of waste cabbage on the environment and human health, we used waste cabbage as a substrate, 2-acrylamide-2-methyl-1-propane sulfonic acid (AMPS) and acrylic acid (AA) as polymerization units, and NH4Cl and KNO3 as nutriment to obtain two waste cabbage-superabsorbent polymers (CB-SAPNH4Cl and CB-SAPKNO3) by the one-pot method. The chemical structure, thermal stability, and morphology of the polymers were investigated by Fourier-transform infrared spectroscopy (FTIR), thermal gravimetric analysis (TGA), and scanning electron microscope (SEM). Meanwhile, the water retention, water absorption, and salt resistance were compared with the purchased polymers. The results showed that the nutriment was successfully encapsulated inside the polymer, and CB-SAPNH4Cl and CB-SAPKNO3 at 1% nutrient concentration showed excellent water retention properties, salt resistance, and water absorption performance of 1546 and 1131 g/g (distilled water), 306 and 277 g/g (tap water), and 116 and 91 g/g (0.9% NaCl solution). Therefore, they are highly promising materials for the application.
研究领域:
环境科学
·
材料科学
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农业科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF ENVIRONMENTAL MANAGEMENT
·
2023
·
IF 8.7
Hongli Zhang,Guanghui Wang,Jie Du,Xiangjun Pei,Peng Du,Lihong Zhou
Poor cementation between soil particles is a fundamental cause of soil erosion and desertification. In recent decades, many polymers have been used to cement soil particles and improve the physical and chemical properties of soils. The contributions of polymers with different structures and functional groups to soil improvement vary considerably. In this study, a mixture comprising polyacrylamide (PAM), sodium polyacrylate (PAAS), hydroxypropyl methylcellulose (HPMC), and polyvinyl alcohol (PVA) was investigated to meet the requirements of soil water retention, erosion resistance, and plant growth . The results showed that the time required for the modified soil to reach drought conditions was extended by 4–7 days. The PAM/HPMC, PAM/PVA and PAM/PAAS experimental groups reduced the erosion rate by 99.57%, 98.3% and 96.38%, respectively, compared to that of the control group. The belowground plant biomass was significantly increased by PAM/HPMC, PAM/PAAS, and PAM/PVA, with increases of 115.92%, 145.23%, and 205.67%, respectively. HPMC contributed more to the soil erosion resistance and water-holding capacity, PAAS improved the soil porosity substantially, and PVA significantly increased the plant biomass. The rigid structures of the polymer chains enhanced the structural stability of the soil, and the hydrophilic functional groups increased the hydrophilicity of the amended soil. This study indicates different polymers that may be used to improve soil properties.
研究领域:
土壤学
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环境科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Sustainable Energy & Fuels
·
2020
·Vol. 4
·期 6
·2859-2868
·
IF 5.503
Henghui Huang,Liwen Ni,Jiaoyan Xu,Xiaojun Xie,Li Zhang,Cheng Yang,Jiantao Fan,Hui Li,Haijiang Wang
Highly conductive and water-retentive vinylphosphonic acid-modified aminosilicon oxide cross-linked polymer/perfluorosulfonic acid (VPA-ASOCP/PFSA) membranes were prepared using PFSA solution and vinylphosphonic acid-modified (3-aminopropyl)triethoxysilane (VPA-APTES) as precursors. Spectroscopic and Energy Dispersive Spectrometer (EDS) analyses revealed that in situ generation of a VPA-ASOCP network was effectively achieved along with homogeneous dispersion of silicon backbones and phosphonic acid groups in the PFSA matrix. These composite membranes exhibited an increased water uptake and associated better conductivity at low and medium relative humidity (RH) compared to a pristine PFSA membrane and commercial Gore 740 membrane. The proton conductivity results showed that the VPA-ASOCP/PFSA composite membrane provided a proton conductivity of up to 24 mS cm−1 at 30% RH and 12.4 mS cm−1 at 10% RH, which were respectively 4.8 times and 10.3 times higher than those of the PFSA membrane and 4.5 times and 6.8 times higher than those of the commercial Gore 740 membrane on its own. In addition, the VPA-ASOCP/PFSA composite membrane exhibited superior fuel cell performance and low ohmic resistance across the entire humidity range for fuel cell operation, and the VPA-ASOCP/PFSA composite membrane provided a cell voltage as high as 0.672, 0.664, and 0.648 V at a current density of 1.0 A cm−2 when the RH was 50%, 20%, and 0, which were 50, 71 and 90 mV higher than those of the PFSA membrane and 34, 50 and 72 mV higher than those of the Gore 740 membrane. The water transport and small-angle X-ray scattering experimental results demonstrated that water transport was enhanced and new proton transport channels were formed when the VPA-ASOCP/PFSA composite was used as a proton exchange membrane (PEM). This new type of VPA-ASOCP/PFSA composite membrane is promising for developing PEMs that tolerate variations in humidity.
研究领域:
材料科学
·
能源工程
✓ 已验证
产品关联
DOI
高影响因子
RSC Advances
·
2014
·Vol. 4
·期 93
·51208-51214
·
IF 3.708
Shaoyu Lü,Chunmei Gao,Xinggang Wang,Xiubin Xu,Xiao Bai,Nannan Gao,Chen Feng,Yi Wei,Lan Wu,Mingzhu Liu
With the increasing public concern toward human health, environmental protection, and natural resource sustainability, there is a shift toward the development of environmentally friendly fertilizers based on biomass. In this study, a coated fertilizer system based on starch acetate (SA) and weakly cross-linked carboxymethyl starch/xanthan gum (CMS/XG) was developed to improve biomass utilization efficiency and reduce environmental pollution. The coated fertilizer with a diameter in the range of 2.5–3.0 mm possesses low moisture content and high mechanical hardness. Nutrient nitrogen reached a steady state of releasing equilibrium within 20 days and the release behaviour depended on the coating thickness and the plasticizer content of the SA film. Soil water-holding capacity determination showed that soil/coated fertilizer mixtures retained more water than the control soil, and the water content increased with increasing amount of the coated fertilizer in the soil. The experimental data indicated that the products based on starch derivatives as coating materials have preferable slow-release performance and the introduction of the natural polymers can improve biomass utilization efficiency, reduce nutrient loss and improve water use efficiency.
研究领域:
农业科学
·
材料科学
·
环境科学
✓ 已验证
产品关联
DOI
高影响因子
MATERIALS LETTERS
·
2019
·
IF 3.019
Heng Zhang,Xuran Xu,Chuntao Chen,Xiao Chen,Yang Huang,Dongping Sun
In an attempt to obtain bacterial cellulose (BC) with controllable pores, Ca-alginate particles were introduced into BC fermentation medium. Ca-alginate particles with different diameters were prepared through electrostatic spinning and pulverization. After removing the particles, a continuous and homogeneous network of pores with diameters around 5 μm, 20 μm, and 400 μm were presented inside BC hydrogel. Compared to native BC, the crystallinity, the surface area and water holding capacity (WHC) were all increased when the pore sizes around 5 μm, 20 μm. However, the porous BC with diameters around 400 μm showed poor performance in WHC and mechanical strength. This novel approach described in this paper introduced a new approach for creating controllable porous BC with user-defined control over the physical dimensions of the network, and slightly changed its structure.
研究领域:
生物材料学
·
组织工程
·
纳米医学
·
高分子科学
·
微生物发酵
✓ 已验证
DOI
高影响因子
International Journal of Polymer Science
·
2024
·
IF 3.4
Shuangjie Liu,Jialin Yu,Yongping Hao,Feng Gao,Mo Zhou,Lijun Zhao
Using Nafion212 membrane and TEOS solution as raw materials, Nafion212/SiO2 composite membranes were prepared. In the in situ sol-gel reaction process, a series of Nafion/SiO2 composite membranes were prepared by varying the reaction temperature and reaction time. The effects of different modification schemes on Nafion/SiO2 composite membranes were studied using SEM, EDS, TEM, TGA, XRD, and mechanical tensile experiments, among other methods. The results show that Nafion/SiO2 composite membranes prepared at 3°C exhibit a well-separated phase structure and excellent water retention properties, with a water uptake of 29.23% and a swelling ratio of 24.25%. These membranes also demonstrate outstanding physical and chemical performance, with a maximum tensile stress of 13.6 MPa and an elongation at a break of 270%. At 110°C, the proton conductivity of the Nafion/SiO2 composite membrane reaches 0.172 S/cm, meeting the requirements for high-temperature proton exchange membrane fuel cells.
研究领域:
材料科学
·
化学工程
✓ 已验证
产品关联
DOI
高影响因子
ACS Sustainable Chemistry & Engineering
·
2016
·
IF 5.267
Xinggang Wang,Shaoyu Lü,Chunmei Gao,Chen Feng,Xiubin Xu,Xiao Bai,Nannan Gao,Jinlong Yang,Mingzhu Liu,Lan Wu
To minimize the negative impact of nitrogen and phosphorus pollution from wastewater and improve fertilizer use efficiency, a novel multifunctional slow-release compound fertilizer was prepared by recovery of NH4+ and H2PO4– from aqueous solutions onto amphoteric straw cellulose (ASC) adsorbent. The effects of adsorbent dosage, solution pH, contact time and ionic strength on adsorption were investigated. The adsorption quickly reached equilibrium. The maximum NH4+ adsorption capacity of ASC was 68.4 mg g–1 at around pH 7.0, whereas it was 38.6 mg g–1 for H2PO4– adsorption at pH 5.0. Moreover, the feasibility of reusing the nutrients-laden carrier material as a multifunctional slow-release compound fertilizer was determined. The study demonstrated the product with excellent slow-release and water-retention properties. Thus, it could improve soil moisture content and reduce soil moisture evaporation rate and was economical and environmentally friendly for application in horticulture and agriculture.
研究领域:
环境科学
·
农业科学
✓ 已验证
产品关联
DOI
高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2025
·
IF 8.5
Zhe Liu,Lei Chen,Xiaoliang Zhang,Xiaojie Lu,Mao Peng,Chunxia Wang,Yong Liu,Xiangwu Zhang
Flexible Zn-air batteries (FZABs) are regarded as promising energy storage devices for wearable electronics because of their intrinsic safety and high energy densities. However, the low water absorption, low ionic conductivity, and poor water retention of hydrogel electrolytes lead to serious charge/discharge polarization, low discharge capacity, and a short lifespan of FZABs. A novel hydrogel, named polyvinyl alcohol-polyacrylamide-carboxymethyl chitosan (PVA-PAM-CMCS), is developed to address the aforementioned issues. Through the hydrogen bonds and electrostatic interactions, CMCS is connected with the PAM-PVA backbone, which induces a denser and finer porous structure in the hydrogel. Taking advantage of the structural modification, the PVA-PAM-CMCS hydrogel electrolyte shows enhanced ionic conductivity (108.65 mS cm −1 ) and improved tensile stress (244.1 kPa) and strain (410.7 %). 2D fabric FZABs with PVA-PAM-CMCS hydrogel electrolyte exhibit long cycle life (118 h), impressive discharge capacity (805.3 mAh g −1 ), and maximum power density (91.04 mW cm −2 ). Furthermore, 1D yarn FZABs with PVA-PAM-CMCS electrolyte are continuously produced in an integrated manner by the yarn-wrapping technique. These yarn batteries can maintain stable electrochemical performance under both bending and stretching conditions. The combined design methodology of PVA-PAM-CMCS hydrogel electrolyte and yarn-wrapping technique for 1D yarn FZABs opens a new avenue to power various portable electronics.
研究领域:
材料科学
·
能源存储
✓ 已验证
产品关联
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）