您好,欢迎访问内蒙古农牧业科学院 机构知识库!

A fast-response visual indicator film based on polyvinyl alcohol/ methylcellulose/black wolfberry anthocyanin for monitoring chicken and shrimp freshness

文献类型: 外文期刊

作者: Wang, Debao 1 ; Wang, Xinxia 1 ; Sun, Zhilan 1 ; Liu, Fang 1 ; Wang, Daoying 1 ;

作者机构: 1.Minist Sci & Technol, Jiangsu Key Lab Food Qual & Safety, State Key Lab Cultivat Base, Nanjing 210014, Peoples R China

2.Jiangsu Acad Agr Sci, Inst Agr Prod Proc, Nanjing 210014, Peoples R China

3.Inner Mongolia Acad Agr & Anim Husb, Inst Agr & Anim Prod Proc, Hohhot 010000, Peoples R China

4.Minist Agr & Rural Affairs, Key Lab Cold Chain Logist Technol Agroprod, Nanjing 210014, Peoples R China

关键词: Biodegradable material; Black wolfberry anthocyanin; Visual indicator film; Color response; Freshness monitoring

期刊名称:FOOD PACKAGING AND SHELF LIFE ( 影响因子:8.749; 五年影响因子:8.737 )

ISSN: 2214-2894

年卷期: 2022 年 34 卷

页码:

收录情况: SCI

摘要: Natural anthocyanins are considered favorable indicators for new sensing materials because of their wide pH color range. Here, a smart visual indicator film was developed by introducing black wolfberry (BW) anthocyanins to a solid matrix composed of polyvinyl alcohol (PVOH) and methylcellulose (MC). Fourier transform infrared and X-ray showed that the introduction of BW anthocyanins enhanced hydrogen-bond interactions among the polymers and the anthocyanins were well fixed in the polymer matrix. 5 % BW could improve the stability of the PVOH/MC/BW and increase its tensile strength and breakage elongation by 63.2 % and 53.0 %, respectively. Optical observations and freshness monitoring suggested that the film loaded with 5 % BW could respond to acidic and basic vapors within 10 s and as low as 25 ppm NH3 in chicken and shrimp during storage at 4 degrees C. Therefore, PVOH/MC/BW-5% may potentially be used as a smart sensor to determine freshness in practical applications.

  • 相关文献
作者其他论文 更多>>