Visual Colorimetric Detection of Edible Oil Freshness for Peroxides Based on Nanocellulose
Traditional methods for evaluating the edibility of lipids involve the use of organic reagents and complex operations, which limit their routine use. In this study, nanocellulose was prepared from bamboo, and a colorimetric reading strategy based on nanocellulose composite hydrogels was explored to...
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| Format: | Article |
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MDPI AG
2023-05-01
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| Series: | Foods |
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| Online Access: | https://www.mdpi.com/2304-8158/12/9/1896 |
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| author | Xiongli Jiang Jun Cheng Fangwei Yang Zhenyang Hu Zhen Zheng Yu Deng Buyuan Cao Yunfei Xie |
| author_facet | Xiongli Jiang Jun Cheng Fangwei Yang Zhenyang Hu Zhen Zheng Yu Deng Buyuan Cao Yunfei Xie |
| author_sort | Xiongli Jiang |
| collection | DOAJ |
| description | Traditional methods for evaluating the edibility of lipids involve the use of organic reagents and complex operations, which limit their routine use. In this study, nanocellulose was prepared from bamboo, and a colorimetric reading strategy based on nanocellulose composite hydrogels was explored to monitor the freshness of edible oils. The hydrogels acted as carriers for peroxide dyes that changed color according to the freshness of the oil, and color information was digitized using UV-vis and RGB analysis. The sensitivity and accuracy of the hydrogel were verified using H<sub>2</sub>O<sub>2</sub>, which showed a linear relationship between absorbance and H<sub>2</sub>O<sub>2</sub> content in the range of 0–0.5 and 0.5–11 mmol/kg with R<sup>2</sup> of 0.9769 and 0.9899, respectively, while the chromatic parameter showed an exponential relationship with R<sup>2</sup> of 0.9626. Surprisingly, the freshness of all seven edible oil samples was correctly identified by the hydrogel, with linear correlation coefficients greater than 0.95 in the UV-vis method and exponential correlation coefficients greater than 0.92 in the RGB method. Additionally, a peroxide value color card was established, with an accuracy rate of 91.67%. This functional hydrogel is expected to be used as a household-type oil freshness indicator to meet the needs of general consumers. |
| first_indexed | 2024-03-11T04:18:57Z |
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| id | doaj.art-28ecd97d6d1e4fbfb38f8521d1eddc44 |
| institution | Directory Open Access Journal |
| issn | 2304-8158 |
| language | English |
| last_indexed | 2024-03-11T04:18:57Z |
| publishDate | 2023-05-01 |
| publisher | MDPI AG |
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| series | Foods |
| spelling | doaj.art-28ecd97d6d1e4fbfb38f8521d1eddc442023-11-17T22:56:20ZengMDPI AGFoods2304-81582023-05-01129189610.3390/foods12091896Visual Colorimetric Detection of Edible Oil Freshness for Peroxides Based on NanocelluloseXiongli Jiang0Jun Cheng1Fangwei Yang2Zhenyang Hu3Zhen Zheng4Yu Deng5Buyuan Cao6Yunfei Xie7State Key Laboratory of Food Science and Technology, Jiangnan University, No. 1800 Lihu Avenue, Wuxi 214122, ChinaState Key Laboratory of Food Science and Technology, Jiangnan University, No. 1800 Lihu Avenue, Wuxi 214122, ChinaState Key Laboratory of Food Science and Technology, Jiangnan University, No. 1800 Lihu Avenue, Wuxi 214122, ChinaState Key Laboratory of Food Science and Technology, Jiangnan University, No. 1800 Lihu Avenue, Wuxi 214122, ChinaState Key Laboratory of Food Science and Technology, Jiangnan University, No. 1800 Lihu Avenue, Wuxi 214122, ChinaState Key Laboratory of Food Science and Technology, Jiangnan University, No. 1800 Lihu Avenue, Wuxi 214122, ChinaState Key Laboratory of Food Science and Technology, Jiangnan University, No. 1800 Lihu Avenue, Wuxi 214122, ChinaState Key Laboratory of Food Science and Technology, Jiangnan University, No. 1800 Lihu Avenue, Wuxi 214122, ChinaTraditional methods for evaluating the edibility of lipids involve the use of organic reagents and complex operations, which limit their routine use. In this study, nanocellulose was prepared from bamboo, and a colorimetric reading strategy based on nanocellulose composite hydrogels was explored to monitor the freshness of edible oils. The hydrogels acted as carriers for peroxide dyes that changed color according to the freshness of the oil, and color information was digitized using UV-vis and RGB analysis. The sensitivity and accuracy of the hydrogel were verified using H<sub>2</sub>O<sub>2</sub>, which showed a linear relationship between absorbance and H<sub>2</sub>O<sub>2</sub> content in the range of 0–0.5 and 0.5–11 mmol/kg with R<sup>2</sup> of 0.9769 and 0.9899, respectively, while the chromatic parameter showed an exponential relationship with R<sup>2</sup> of 0.9626. Surprisingly, the freshness of all seven edible oil samples was correctly identified by the hydrogel, with linear correlation coefficients greater than 0.95 in the UV-vis method and exponential correlation coefficients greater than 0.92 in the RGB method. Additionally, a peroxide value color card was established, with an accuracy rate of 91.67%. This functional hydrogel is expected to be used as a household-type oil freshness indicator to meet the needs of general consumers.https://www.mdpi.com/2304-8158/12/9/1896nanocellulosehydrogelsedible oilsdigital image colorimetry |
| spellingShingle | Xiongli Jiang Jun Cheng Fangwei Yang Zhenyang Hu Zhen Zheng Yu Deng Buyuan Cao Yunfei Xie Visual Colorimetric Detection of Edible Oil Freshness for Peroxides Based on Nanocellulose Foods nanocellulose hydrogels edible oils digital image colorimetry |
| title | Visual Colorimetric Detection of Edible Oil Freshness for Peroxides Based on Nanocellulose |
| title_full | Visual Colorimetric Detection of Edible Oil Freshness for Peroxides Based on Nanocellulose |
| title_fullStr | Visual Colorimetric Detection of Edible Oil Freshness for Peroxides Based on Nanocellulose |
| title_full_unstemmed | Visual Colorimetric Detection of Edible Oil Freshness for Peroxides Based on Nanocellulose |
| title_short | Visual Colorimetric Detection of Edible Oil Freshness for Peroxides Based on Nanocellulose |
| title_sort | visual colorimetric detection of edible oil freshness for peroxides based on nanocellulose |
| topic | nanocellulose hydrogels edible oils digital image colorimetry |
| url | https://www.mdpi.com/2304-8158/12/9/1896 |
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