Precise-color-mutation designing and programmable drop-on-demand printing for intelligent package of shrimp
文献类型: 外文期刊
作者: Shiyao Wang;Shanshan Liu;Xinxin Yang;Shihao Zhang;Xing Li;Qi Zhang;Yisheng Chen
作者机构:
关键词: 2D printing;Alizarin;Color mutation(10);Curcumin;Freshness detection;smartphone(10)
期刊名称: Food Bioscience
ISSN: 2212-4292
年卷期: 2024 年 61 卷
页码:
收录情况: SCIE(2024版) ; ; 农林核心(2020版)
摘要: Biosafe colorimetric labels that can accurately evaluate food freshness have been widely investigated in recent years. The colorimetric macro-array sensor, with the composite solution of curcumin, alizarin and acetic-acid as the indicator, was prepared by means of a self-developed 2D printing device to detect shrimp freshness. The results evidenced the sensor which had high stability, uniform color distribution and great sensitivity could be drop-on-demand printed in batches under the premise of micro-printing. When the TVB-N content of shrimp exceeded 20 mg/100g at all observed temperatures, the sensor abruptly turned from yellow to reddish-brown meanwhile the ΔE value raised sharply, indicating that there was a color mutation at the critical value of shrimp freshness. The macro-array sensor could be recognized by the smartphone to obtain the correlation between the color information (RGB) and TVB-N content, by which the shrimp freshness was determined. Furthermore, the correlation was verified through the WeChat mini-program. When the R value was less than 200 or the G value was below 140, the sensor was brown, suggesting the sample was inedible. Consequently, the system can be applied in food quality control throughout the supply chain.
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