Anthocyanin Colorimetric Strip for Volatile Amine Determination
Joint Authors
Agunos, Ricarl Irish F.
Mendoza, Danilet Vi M.
Rivera, Michael Angelo S.
Source
International Journal of Food Science
Issue
Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2020-06-18
Country of Publication
Egypt
No. of Pages
7
Abstract EN
Food freshness is one of the main concerns of consumers.
Food spoilage is mainly caused by contamination and microbial growth in which the latter produces volatile amines in the process.
Several methods have been used to determine volatile amines to indicate food freshness, and indicator films are deemed as the most time-efficient and economical.
In this study, anthocyanin was extracted from mangosteen rind as a natural dye indicator and was incorporated in a chitosan/PVA polymer matrix.
The film with different concentrations of anthocyanin extract (5%, 15%, and 25%) was prepared and tested for their sensitivity to 136 ppm ammonia vapor followed by colorimetric analysis using ImageJ software.
The film with 25% anthocyanin yielded the most visible color change upon exposure to ammonia vapor.
The color changed from pink to yellowish-brown within 14 minutes of exposure.
The RGB-converted images of the film with 25% anthocyanin extract showed gradual loss of red coloration being replaced by cyan spots.
FTIR spectra showed incorporation of anthocyanin to the chitosan/PVA matrix with the decrease in the intensity of the C-N stretching peak.
Thermogravimetric analysis showed that the film has high thermal stability with onset temperature of 310.43°C.
Thus, the film developed is an excellent candidate for optimization and production of a thermally stable amine detector for food products.
American Psychological Association (APA)
Agunos, Ricarl Irish F.& Mendoza, Danilet Vi M.& Rivera, Michael Angelo S.. 2020. Anthocyanin Colorimetric Strip for Volatile Amine Determination. International Journal of Food Science،Vol. 2020, no. 2020, pp.1-7.
https://search.emarefa.net/detail/BIM-1170944
Modern Language Association (MLA)
Agunos, Ricarl Irish F.…[et al.]. Anthocyanin Colorimetric Strip for Volatile Amine Determination. International Journal of Food Science No. 2020 (2020), pp.1-7.
https://search.emarefa.net/detail/BIM-1170944
American Medical Association (AMA)
Agunos, Ricarl Irish F.& Mendoza, Danilet Vi M.& Rivera, Michael Angelo S.. Anthocyanin Colorimetric Strip for Volatile Amine Determination. International Journal of Food Science. 2020. Vol. 2020, no. 2020, pp.1-7.
https://search.emarefa.net/detail/BIM-1170944
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1170944