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http://krishi.icar.gov.in/jspui/handle/123456789/15392
Title: | Chitosan and gold nanoparticles-based thermal history indicators andfrozen indicators for perishable and temperature-sensitive products |
Other Titles: | Not Available |
Authors: | Yi-Cheng Wang Mohan, C.O. Guan, J. Ravishankar, C.N. Gunasekaran, S. |
ICAR Data Use Licennce: | http://krishi.icar.gov.in/PDF/ICAR_Data_Use_Licence.pdf |
Author's Affiliated institute: | ICAR::Central Institute of Fisheries Technology Department of Biological Systems Engineering, University of Wisconsin-Madison, USA |
Published/ Complete Date: | 2018-03 |
Project Code: | Not Available |
Keywords: | Food safety Colorimetric sensor Localized surface plasmon resonance (LSPR) Biopolymer Time temperature indicator Intelligent packaging |
Publisher: | Elsevier |
Citation: | Yi-Cheng Wang, Mohan, C.O., Guan, J., Ravishankar, C.N. and Gunasekaran, S. (2018) -Chitosan and gold nanoparticle based thermal history indicators and frozen indicators for perishable and temperature sensitive products, Food Control. 85: 186-193. |
Series/Report no.: | Not Available; |
Abstract/Description: | Nanocomposite of chitosan and gold nanoparticles (AuNPs) was used to develop sensors that can indi-cate the frozen state and thermal history of foods and other temperature-sensitive products based on thevisual color change that accompanies the growth and aggregation or agglomeration of AuNPs due to theirlocalized surface plasmon resonance. The synthesis parameters of the chitosan/AuNPs nanocompositeswere optimized and the synthesis mechanisms were carefully investigated by transmission electronmicroscopy, Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy and UV-visiblespectroscopy. Optimally synthesized chitosan/AuNPs nanocomposite was used as a frozen detector,indicated by pink to dark grey color change upon freezing for one day. This sharp color change can beused to help ensure the quality of products such as seafood, meats etc. that may be affected by frozenstorage. Chitosan/AuNPs nanocomposites synthesized under different set of parameters could serve asthermal history indicators (THIs) to reflect the temperature abuse of perishable foods and othertemperature-sensitive biomaterials. The color of the THIs becomes more intense with the duration theysuffer temperature abuse at room or higher temperature. The color change is irreversible and the THIscan be customized to fulfill different time-temperature storage requirements. These frozen detectors andTHIs offer novel, cost-effective and environmentally benign alternatives to track and indicate productthermal history by visible color change, without the need of additional read-out devices. These sensorscan potentially be integrated with existing packaging to help track and ensure the quality and safety ofperishable food, pharmaceuticals and biomaterials. |
Description: | Not Available |
ISSN: | 0956-7135 |
Type(s) of content: | Research Paper |
Sponsors: | Not Available |
Language: | English |
Name of Journal: | Food Control |
NAAS Rating: | 10.26 |
Volume No.: | 85 |
Page Number: | 186-193 |
Name of the Division/Regional Station: | Not Available |
Source, DOI or any other URL: | https://doi.org/10.1016/j.foodcont.2017.09.031 |
URI: | http://krishi.icar.gov.in/jspui/handle/123456789/15392 |
Appears in Collections: | FS-CIFT-Publication |
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