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蒲公英提取物-茶多酚-玉米秸秆纤维素抗菌复合膜制备与性能

张群利 邬泽凯 崔琳琳 谢文静 于启蒙 刘宇鹏

张群利, 邬泽凯, 崔琳琳, 等. 蒲公英提取物-茶多酚-玉米秸秆纤维素抗菌复合膜制备与性能[J]. 复合材料学报, 2023, 40(9): 5341-5349. doi: 10.13801/j.cnki.fhclxb.20221215.001
引用本文: 张群利, 邬泽凯, 崔琳琳, 等. 蒲公英提取物-茶多酚-玉米秸秆纤维素抗菌复合膜制备与性能[J]. 复合材料学报, 2023, 40(9): 5341-5349. doi: 10.13801/j.cnki.fhclxb.20221215.001
ZHANG Qunli, WU Zekai, CUI Linlin, et al. Preparation and performance of cellulose antibacterial composite film from corn stover with dandelion extract and tea polyphenols[J]. Acta Materiae Compositae Sinica, 2023, 40(9): 5341-5349. doi: 10.13801/j.cnki.fhclxb.20221215.001
Citation: ZHANG Qunli, WU Zekai, CUI Linlin, et al. Preparation and performance of cellulose antibacterial composite film from corn stover with dandelion extract and tea polyphenols[J]. Acta Materiae Compositae Sinica, 2023, 40(9): 5341-5349. doi: 10.13801/j.cnki.fhclxb.20221215.001

蒲公英提取物-茶多酚-玉米秸秆纤维素抗菌复合膜制备与性能

doi: 10.13801/j.cnki.fhclxb.20221215.001
基金项目: 中央高校基本科研业务费专项资金(2572019 BL01)
详细信息
    通讯作者:

    张群利,博士,副教授,硕士生导师,研究方向为功能性包装材料 E-mail: zhangqunli@nefu.edu.cn

  • 中图分类号: TS71+1;TB332

Preparation and performance of cellulose antibacterial composite film from corn stover with dandelion extract and tea polyphenols

Funds: Fundamental Research Funds for the Central Universities (2572019 BL01)
  • 摘要: 玉米秸秆的高附加值利用既可以减轻污染和资源浪费,还对探索秸秆的工业化利用和农业可持续发展具有深远的意义。以玉米秸秆制备的微晶纤维素(CSMCC)为原料,1-丁基-3-甲基咪唑氯盐([Bmim]Cl)为溶剂体系,蒲公英提取物(DE)和茶多酚(TP)为抗菌剂,通过共混法制备抗菌复合膜。通过FTIR、XRD、SEM和热重分析对复合膜的形貌和结构进行表征及对力学、光学、阻隔、抑菌等性能测试分析。结果表明:DE和TP与纤维素基膜较好地复合,复配抗菌剂DE-TP抗菌复合膜相比于DE、TP抗菌复合膜具有较优的拉伸强度((52.60±6.33) MPa)、氧气阻隔性能(氧气透过系数为(1.65±0.25)×10−11 cm3·cm/(cm2·s·Pa)),且对大肠杆菌和金黄色葡萄球菌具有更好的抑制作用。同时DE-TP抗菌复合膜断裂伸长率相比于纤维素基膜提升了53.96%,透光率保持在(82.56±0.26)%,具有良好的力学性能和光学性能。为制备对控制食品腐败变质和生物资源高效利用具有重要意义的环境友好型抗菌复合膜的研发提供新思路。

     

  • 图  1  玉米秸秆微晶纤维素(CSMCC) 0# (a) 和1# (b)、2# (c)、3# (d) 抗菌复合膜图

    Figure  1.  Pictures of microcrystalline cellulose prepared from corn straw (CSMCC) 0# (a) and 1# (b), 2# (c), 3# (d) antibacterial composite film

    图  2  抗菌复合膜制备工艺及评价

    Figure  2.  Preparation and evaluation of antibacterial composite film

    CSC—Corn straw cellulose; DE—Dandelion extract; TP—Tea polyphenols; CSRGC—Corn stalk regenerated cellulose

    图  3  CSMCC和市购微晶纤维素(MCC)的FTIR图谱

    Figure  3.  FTIR spectra of CSMCC and commercial microcrystalline cellulose (MCC)

    图  4  CSMCC和MCC的XRD图谱

    Figure  4.  XRD patterns of CSMCC and MCC

    图  5  DE、TP、CSRGC和抗菌复合膜FTIR图谱

    Figure  5.  FTIR spectra of DE, TP, CSRGC and antibacterial composite film

    图  6  CSRGC和抗菌复合膜的XRD图谱

    Figure  6.  XRD patterns of CSRGC and antibacterial composite film

    图  7  CSRGC 0# (a) 和1# (b)、2# (c)、3# (d) 抗菌复合膜表面的SEM图像

    Figure  7.  SEM images of surface of CSRGC 0# (a) and 1# (b), 2# (c), 3# (d) antibacterial composite film

    图  8  CSRGC 0# (a) 和1# (b)、2# (c)、3# (d) 抗菌复合膜的断面SEM图像

    Figure  8.  SEM images of section of CSRGC 0# (a) and 1# (b), 2# (c), 3# (d) antibacterial composite film

    图  9  CSRGC和抗菌复合膜TG曲线

    Figure  9.  TG curves of CSRGC and antibacterial composite film

    图  10  CSRGC和抗菌复合膜DTG曲线

    Figure  10.  DTG diagram of CSRGC and antibacterial composite film

    图  11  CSRGC和抗菌复合膜的透光率和雾度

    Figure  11.  Light transmittance and haze of CSRGC and antibacterial composite film

    表  1  抗菌复合膜组分

    Table  1.   Composition of antibacterial composite film

    SampleDE content/
    wt%
    TP content/
    wt%
    Remarks
    0#As blank group
    1#1515w(DE)∶w(TP)=1∶1
    2#30
    3#30
    Notes: DE—Dandelion extract; TP—Tea polyphenol; "—" means not added; The added amount of DE and TP is the percentage of the mass of DE and TP in the mass of CSMCC.
    下载: 导出CSV

    表  2  CSRGC和抗菌复合膜的失重情况

    Table  2.   Mass loss of CSRGC and antibacterial composite film

    SampleT5%/℃T10%/℃T30%/℃T50%/℃
    0#271.1276.1288.1299.1
    1#235.5277.5310.3326.0
    2#217.0261.9283.6295.6
    3# 66.5244.8275.2289.9
    Note: T5%, T10%, T30%, T50%—Corresponding temperature when mass loss rate is 5wt%, 10wt%, 30wt%, 50wt%.
    下载: 导出CSV

    表  3  抗菌复合膜的力学性能

    Table  3.   Mechanical properties of antibacterial composite film

    SampleTS/MPaEAB/%EM/GPa
    0# 99.35±10.56a 8.97±0.90c 11.08±0.64a
    1# 52.60±6.33b 13.81±1.76ab 3.82±0.32b
    2# 50.83±5.04b 11.57±1.88bc 4.49±0.94b
    3# 42.21±4.82b 15.51±2.43a 2.78±0.50c
    Notes: TS—Tensile strength; EAB—Elongation at break; EM—Elastic modulus; Different letters represent significant differences (P<0.05); a, b, c, d—Significant differences between groups.
    下载: 导出CSV

    表  4  CSRGC和抗菌复合膜的阻隔性能

    Table  4.   Barrier properties of CSRGC and antibacterial composite film

    SampleOTC/[cm3·cm·(cm2·s·Pa)-1]
    0#(3.13±0.99)×10−12 d
    1#(1.65±0.25)×10−11 b
    2#(2.11±0.29)×10−11 a
    3#(2.22±0.11)×10−11 a
    Notes: OTC—Oxygen transmission coefficient; Different letters represent significant differences (P<0.05).
    下载: 导出CSV

    表  5  抗菌复合膜抑菌性能

    Table  5.   Antibacterial properties of composite film

    SampleE. coli/mmS. aureus/mm
    0#0d0d
    1#15.22±0.15a15.86±0.25a
    2#11.32±0.12c14.29±0.25b
    3#14.11±0.15b11.16±0.11c
    Notes: E. coli—Escherichia coli; S. aureus—Staphylococcus aureus; Different letters represent significant differences (P<0.05).
    下载: 导出CSV
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  • 收稿日期:  2022-10-19
  • 修回日期:  2022-11-22
  • 录用日期:  2022-12-09
  • 网络出版日期:  2022-12-19
  • 刊出日期:  2023-09-15

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