Pilot-Scale Radio Frequency-Assisted Pasteurization of Chili Powders Prepacked by Different Packaging Films

Shaojie Ma, Rui Li, Qingye Li, Qing Zhang, Wen Qin and Shuxiang Liu
Additional contact information
Shaojie Ma: School of Food Science, Sichuan Agricultural University, Ya’an 625014, China
Rui Li: School of Food Science, Sichuan Agricultural University, Ya’an 625014, China
Qingye Li: School of Food Science, Sichuan Agricultural University, Ya’an 625014, China
Qing Zhang: School of Food Science, Sichuan Agricultural University, Ya’an 625014, China
Wen Qin: School of Food Science, Sichuan Agricultural University, Ya’an 625014, China
Shuxiang Liu: School of Food Science, Sichuan Agricultural University, Ya’an 625014, China

Sustainability, 2022, vol. 14, issue 15, 1-14

Abstract: Radio frequency (RF) can penetrate most packaging films and has the advantages of pasteurizing prepackaged low-moisture foods and avoiding secondary contamination. The suitable films for prepacking chili powders and the corresponding pasteurization process are unclear. This study aimed to select a suitable film for prepackaging chili powders, optimize the parameters of RF heating prepackaged chili powders, and evaluate the effects of RF-assisted pasteurization on the quality of chili powders. The results showed that the non-woven fabric (NWF) is suitable for prepackaging chili powders by evaluating the influence of RF heating on packaging films (appearance, sealing performance, mechanical properties.). Using NWF, chili powders inoculated with Salmonella enterica Enteritidis PT 30 still achieved 6.81 ± 0.64 log CFU/g reduction, treated by RF heating at an average temperature of 67.06 °C for 7.5 min with an electrode gap of 110 mm, held for 12.5 min at a hot-air convection oven. The pasteurization process had no significant ( p > 0.05) effect on the quality (appearance, volatile, and capsaicin) of chili powders. The results indicated that chili powders packed with NWF could still be effectively pasteurized by RF-assisted hot air. This study proposed a viable approach to avoid secondary contamination by adding packaging before pasteurization.

Keywords: packaging materials; dielectric heating; spice; foodborne pathogen; disinfection (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2022
References: View complete reference list from CitEc
Citations:

Downloads: (external link)
https://www.mdpi.com/2071-1050/14/15/9132/pdf (application/pdf)
https://www.mdpi.com/2071-1050/14/15/9132/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jsusta:v:14:y:2022:i:15:p:9132-:d:871497

Access Statistics for this article

Sustainability is currently edited by Ms. Alexandra Wu

More articles in Sustainability from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().