Microbial Reduction of Bitter Melon (Momordica charantia L.) and Chan Khao (Tarenna hoaensis Pitard) Herb Powder by Dielectric Barrier Discharge Plasma for Food Sanitary

Authors

  • Khanit Matra Srinakharinwirot University
  • Kiatnarong Narinram Srinakharinwirot University
  • Siwamate Ploysap Srinakharinwirot University
  • Panchalee Prakongsil Thailand Institute of Nuclear Technology (Public Organization)
  • Jiraporn Promping Thailand Institute of Nuclear Technology (Public Organization)

DOI:

https://doi.org/10.4186/ej.2021.25.10.87

Keywords:

non-thermal plasma, air discharge, food preservation, microorganism inactivation

Abstract

The influence of air plasma treatment on microbial inactivation contaminants in bitter melon (Momordica charantia L.) and Chan Khao (Tarenna hoaensis Pitard) powders, obtained from the local retail market in Nakhonnayok, has been investigated. The dielectric barrier discharge (DBD) air plasma model has been designed for in-package treatment by using a neon transformer.  From the microbial analysis, there were high amounts of total aerobic plate count (TPC) as well as total yeast and mold counts (TYM) contaminants in both samples.  It could be confirmed that the DBD air plasma treatment has a positive effect on microorganism reduction. Moreover, the color of air plasma-treated powders has still been chiefly preserved after the treatment process. The kinetics microbial inactivation process in this study has been found to be a single-slope survivor curve since the reduction rate is linear and increased with treatment time. The TPC and TYM concentration in the plasma-treated samples could be decreased to microbiologically qualify for the acceptance criteria of herbal drug preparations as indicated in the Thai Pharmacopoeia Volume I and II Supplement 2005 standard (TP Supplement 2005).

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Author Biographies

Khanit Matra

Department of Electrical Engineering, Faculty of Engineering, Srinakharinwirot University, Nakhon Nayok, 26120, Thailand

Kiatnarong Narinram

Department of Electrical Engineering, Faculty of Engineering, Srinakharinwirot University, Nakhon Nayok, 26120, Thailand

Siwamate Ploysap

Department of Electrical Engineering, Faculty of Engineering, Srinakharinwirot University, Nakhon Nayok, 26120, Thailand

Panchalee Prakongsil

Thailand Institute of Nuclear Technology (Public Organization), Ongkharak, Nakhon Nayok, 26120, Thailand

Jiraporn Promping

Thailand Institute of Nuclear Technology (Public Organization), Ongkharak, Nakhon Nayok, 26120, Thailand

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Published In
Vol 25 No 10, Oct 31, 2021
How to Cite
[1]
K. Matra, K. Narinram, S. Ploysap, P. Prakongsil, and J. Promping, “Microbial Reduction of Bitter Melon (Momordica charantia L.) and Chan Khao (Tarenna hoaensis Pitard) Herb Powder by Dielectric Barrier Discharge Plasma for Food Sanitary”, Eng. J., vol. 25, no. 10, pp. 87-94, Oct. 2021.