Effect of Natureseal® AS5 and packaging materials on the microbiological quality of shredded carrots during storage
2019
Augspole, I., Latvia Univ. of Life Sciences and Technologies, Jelgava (Latvia). Faculty of Agriculture. Inst. of Soil and Plant Sciences | Kince, T., Latvia Univ. of Life Sciences and Technologies, Jelgava (Latvia). Faculty of Food Technology. Dept. of Food Technology | Skudra, L., Latvia Univ. of Life Sciences and Technologies, Jelgava (Latvia). Faculty of Food Technology. Dept. of Food Technology | Dukalska, L., Latvia Univ. of Life Sciences and Technologies, Jelgava (Latvia). Faculty of Food Technology. Dept. of Food Technology
The aim of the study was to investigate microbiological quality changes of shredded carrots processed with Natureseal® AS5 solution during storage in several packaging materials. Before packaging, shredded carrots were processed with commercial 2.5% Natureseal® AS5 solution at temperature +19±1 °C for 5 min±2 s. Processed products were packed in different packaging materials: cellulose based biodegradable packaging Polilactid BIO-PLA containers and NatureFlex NVS, hermetically closed by breathing polymer film BOPP PropafilmTM P2GAF. Carrot samples were stored at the temperature +4±1 °C for 12 days. Quality indicators using standard methods were determined O2 and CO2 concentration inside several packaging and microbiological analysis of carrots. Analysis of the carrot samples was tested out before and after packaging 3, 5, 8, 10 and 12 days of storage. Treatment of carrots with 2.5% NatureSeal® AS5 water solution and subsequent storage for 12 days in biologically degradable and conventional packaging materials ensured a significant decrease of total count and yeast count (p is less than 0.05). This indicates that 2.5% NatureSeal® AS5 water solution can be successful agent towards an ample range of spoilage microorganisms and makes it attractive for food preservation.
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