绿色生物合成细菌纤维素及其在面膜基材上的应用
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浙江省重点研发计划项目(2017C02009);中国博士后科学基金(2018M632475);金华市农业类重大项目(2018-2-001a);省属高校基本科研业务费专项资金项目(2019JL10)


Study on green biosynthesis of bacterial cellulose and its application in mask substrate
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Key R & D projects of Zhejiang Province (2017C02009); China Post Doctoral Science Fund (2018M632475); Major Agricultural Projects of Jinhua City (2018-2-001a); Special Fund Project of Basic Scientific Research Business Expenses of Provincial Universities (2019JL10)

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    摘要:

    利用木糖驹形氏杆菌发酵生产细菌纤维素(Bacterial Cellulose,BC),利用红外光谱仪、X-射线衍射分析仪、扫描电镜等对BC膜进行表征,并对BC膜作为面膜基材方面的各项性能进行全面评价。结果表明,BC膜具有超细的三维网状结构,平均直径小于100 nm,结晶度83.46%,属于典型的Ⅰ型纤维素。相较于无纺布与蚕丝面膜,BC膜具有更优越的持水性能、水蒸气透过性能(2263.54 g/m2?24 h)以及力学性能。相同面积的BC膜在24 h内对负载维生素C(Vc)Pickering乳液中Vc的吸收量(42.36 ?g/cm2)约为无纺布面膜(19.13 ?g/cm2)的2.21倍,为蚕丝面膜(27.36 ?g/cm2)的1.54倍;在90 min内能向皮肤输送10.96 ?g/cm2的营养物质,约为无纺布面膜(6.08 ?g/cm2)的1.8倍,为蚕丝面膜(5.35 ?g/cm2)的2倍。

    Abstract:

    Bacterial cellulose (BC) was produced by fermentation of Komagataeibacter xylinus. The BC membrane was characterized by infrared spectroscopy, X-ray diffraction analysis and scanning electron microscopy. The performance of BC film as substrate for mask was evaluated comprehensively. The results show that the BC membrane has a hree-dimensional network structure with an average diameter of less than 100 nm and a crystallinity of 83.46%, which belongs to typical type I cellulose. Compared with non-woven fabrics and silk mask, BC membrane has superior water holding performance, water vapor transmission performance (2263.54 g/m2?24h) and mechanical properties. The absorption of Vc entrapped in Pickering emulsion (42.36 ?g/cm2) by BC membrane was about 2.21 times that of non-woven mask (19.13 ?g/cm2), 1.54 times that of Silk Mask (27.36 ?g/cm2) within 24 h. And 10.96 ?g/cm2 of nutrients could be transported to the skin within 90 min, which is about 1.8 times that of non-woven fabric (6.08 ?g/cm2), and twice that of silk (5.35 ?g/cm2).

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余瞻,沙如意,王珍珍,赵福权,方晟,毛建卫.绿色生物合成细菌纤维素及其在面膜基材上的应用[J].精细化工,2021,38(5):0

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  • 收稿日期:2020-09-11
  • 最后修改日期:2020-10-15
  • 录用日期:2020-10-16
  • 在线发布日期: 2021-03-01
  • 出版日期: