ISSN : 2663-2187

Green and rapidmethod for classification of the adulteratedcorianderpowderusing vis-NIR spectra and Principal Component Analysis

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Soniya Yadav1, Neha Munjal2, Uma Kamboj3*
» doi: 10.33472/AFJBS.6.5.2024. 2636-2648

Abstract

Coriander powder is commonly used as food additives, flavouring agent, medicine, preservation element due to its nutritional, antioxidant properties. Its nutritional and medicinal properties increase the demand and which makes it’s prone to adulteration. Coriander powder is adulterated with different type of adulterants, which are low cost and harmful to human health. Present work focuses on classification and categorization of the coriander samples adulterated with common adulterants namely – saw dust, cow dung and salt using the visible near infrared spectra. Visible Near infrared spectra was obtained for the pure coriander powder and coriander powder adulterated with the given three adulterants in different ratios. Principal Component Analysis was used for the classification of the samples. Variable correlations were checked between the spectral wavelengths and the coriander concentration of the adulterate samples. It was observed that all the wavelengths above 1100 nm had strong correlation with the coriander adulteration. This results helps in understanding the importance of the wavelengths above 1100 nm for the determination of quantity and type of adulterant in the adulterated coriander powder. Principal Component Analysis was helpful in grouping the complete data set with three types of adulterant as well as one set of adulterant. Results show that the vis-near infrared spectra is capable of classification of the coriander samples adulterated with three adulterants and nine concentration.

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