Effect of multipin atmospheric cold plasma treatment on color, capsaicin and microbial content of geographical indication-tagged Byadagi chili powder

Neha, Tanwar and Sandeep Mudliar, N. and Roopavathi, C. and Prasanna, Vasu and Sukumar, Debnath (2024) Effect of multipin atmospheric cold plasma treatment on color, capsaicin and microbial content of geographical indication-tagged Byadagi chili powder. Journal of Food Engineering. pp. 1-7.

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Abstract

This study examines the impact of cold plasma treatment on the microbiological safety and quality characteristics of geographical indication (GI)-tagged Byadagi chili powder, known for its vibrant color and mild spiciness. Plasma treatment was varied by voltage (10-20 kV), duration (1-10 min) and electrode distance (5-7 cm) to assess effects on composition, vitamins, water activity, phenolic content, antioxidant activity, color, capsaicin content, pungency and structural integrity. The most effective treatment viz., 20 kV for 10 minutes at 5 cm, contributed achievement of a 3.7 log reduction in total microbial load, 3.1 log reduction in coliforms and 2.6 log reduction in yeast and mold. FTIR and SEM analyses revealed subtle but non-significant changes, including increased surface oxygen content (indicated by the C-H and C-O stretching regions), with minimal microstructural differences. The results indicate that cold plasma treatment effectively maintained core properties of Byadagi chili powder, including color and capsaicin and also preserving other physicochemical attributes. This method offers a promising solution for enhancing the safety and quality of Byadagi chili powder, addressing export concerns and maintaining its global market competitiveness.

Item Type:	Article
Uncontrolled Keywords:	Byadagi chili, Nonthermal treatment, Cold plasma, Microbial safety, Color, Capsaicin
Subjects:	600 Technology > 08 Food technology > 30 Spices/Condiments 600 Technology > 08 Food technology > 05 Processing and Engineering
Divisions:	Food Engineering Food Microbiology Food Protectants and Infestation Control Food Safety Analytical Quality Control Lab
Depositing User:	Somashekar K S
Date Deposited:	25 Feb 2025 04:39
Last Modified:	25 Feb 2025 04:39
URI:	http://ir.cftri.res.in/id/eprint/19142

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