• EI
  • Scopus
  • 食品科学与工程领域高质量科技期刊分级目录第一方阵T1
  • DOAJ
  • EBSCO
  • 北大核心期刊
  • 中国核心学术期刊RCCSE
  • JST China
  • FSTA
  • 中国精品科技期刊
  • 中国农业核心期刊
  • CA
  • WJCI
  • 中国科技核心期刊CSTPCD
  • 中国生物医学SinoMed
中国精品科技期刊2020
李学红,高素利,于国强,等. 黄原胶对柠檬醛Pickering乳液膜制备及其理化性能的影响[J]. 食品工业科技,2022,43(16):59−64. doi: 10.13386/j.issn1002-0306.2021110164.
引用本文: 李学红,高素利,于国强,等. 黄原胶对柠檬醛Pickering乳液膜制备及其理化性能的影响[J]. 食品工业科技,2022,43(16):59−64. doi: 10.13386/j.issn1002-0306.2021110164.
LI Xuehong, GAO Suli, YU Guoqiang, et al. Effect of Xanthan Gum on the Preparation and Physicochemical Properties of Citral Pickering Emulsion Film[J]. Science and Technology of Food Industry, 2022, 43(16): 59−64. (in Chinese with English abstract). doi: 10.13386/j.issn1002-0306.2021110164.
Citation: LI Xuehong, GAO Suli, YU Guoqiang, et al. Effect of Xanthan Gum on the Preparation and Physicochemical Properties of Citral Pickering Emulsion Film[J]. Science and Technology of Food Industry, 2022, 43(16): 59−64. (in Chinese with English abstract). doi: 10.13386/j.issn1002-0306.2021110164.

黄原胶对柠檬醛Pickering乳液膜制备及其理化性能的影响

Effect of Xanthan Gum on the Preparation and Physicochemical Properties of Citral Pickering Emulsion Film

  • 摘要: 本文以β-环糊精为乳化剂、黄原胶为外相稳定剂,通过高速均质法制备柠檬醛的水包油Pickering乳液,将乳液加入壳聚糖膜液中流延制备柠檬醛乳液薄膜,研究黄原胶添加对膜制备及其理化性能的影响。结果表明,相比未添加黄原胶乳液,乳液中添加0.2%和0.4%的黄原胶可以使膜中柠檬醛油滴粒径从2.06 μm分别降低至0.71和0.61 μm,油滴分布密度增大并有效防止了乳液制膜过程中油析现象的发生,同时乳液膜的透光率从39%增加至43%~44%。相比未添加黄原胶膜,虽然添加0.2%和0.4%黄原胶的膜水蒸气透过性从12.02 g·mm/(dm2kPa)分别升高至13.58和14.32 g·mm/(dm2kPa),但膜的拉伸强度从5.85 MPa分别提高至6.96和8.77 MPa,膜的断裂伸长率也从28.87%分别提升至29.43%和32.16%,这说明乳液中黄原胶的加入可显著改善膜的机械性能,但也使膜防潮性能有所降低。膜的柠檬醛释放实验则表明,黄原胶的添加可强化乳液膜对柠檬醛的缓释作用。

     

    Abstract: In this paper, the oil-in-water Pickering emulsion of citral was prepared by a high-speed homogenization method with β-cyclodextrin as emulsifier and xanthan gum as external phase stabilizer, and the emulsion obtained was mixed with chitosan solution to make citral emulsion film by the casting method, then the effects of xanthan gum on the preparation and characteristics of the emulsion film were investigated. The results showed that the addition of 0.2% and 0.4% xanthan gum in the emulsion could reduce the particle size of citral droplets in the film from 2.06 μm to 0.71 and 0.61 μm, respectively, effectively increase the distribution density of oil droplets and prevent the occurrence of oil separation in the process of emulsion film making, and at the same time, the light transmittance of the emulsion film increased from 39% to 43%~44%. Compared with the films without xanthan gum, although the water vapor permeability of the films with 0.2% and 0.4% xanthan gum was increased from 12.02 g·mm/(dm2kPa) to 13.58 and 14.32 g·mm/(dm2kPa), respectively, the tensile strength of the film was improved from 5.85 MPa to 6.96 and 8.77 MPa, respectively, and the elongation at break of the film was also enhanced from 28.87% to 29.43% and 32.16%, respectively, indicating that the addition of xanthan gum in the emulsion could significantly improve the mechanical properties while also reduced the moisture resistance of the film. The citral release experiment of the film showed that the addition of xanthan gum could enhance the slow release effect of citral from the emulsion film.

     

/

返回文章
返回