Effect of temperature abuse and improper atmosphere packaging on volatile profile and quality of rocket leaves
| Autor: | Leonarda Mastrandrea, Giancarlo Colelli, Maria Lucia Valeria de Chiara, Sandra Pati, Maria Luisa Amodio |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Microbiology (medical)
Vitamin Chromatography business.product_category Polymers and Plastics Chemistry 04 agricultural and veterinary sciences Ascorbic acid 040401 food science 040501 horticulture Biomaterials Atmosphere chemistry.chemical_compound 0404 agricultural biotechnology Rocket Modified atmosphere Degradation (geology) Dimethyl sulfide Gas composition Food science 0405 other agricultural sciences Safety Risk Reliability and Quality business Food Science |
| Zdroj: | Food Packaging and Shelf Life. 14:59-65 |
| ISSN: | 2214-2894 |
| Popis: | This study aimed to investigate the effect of temperature abuse and improper packaging on volatiles profile, vitamin C and sensorial attributes of rocket leaves packaged in modified atmosphere. Leaves packed in suboptimal conditions (high ratio of product weight/bag surface) were stored for 10 days at 0 and 5 °C, and for 8 days at 15 °C. Rocket leaves were kept in macroperforated bags in order to prevent modification of atmosphere within the headspace (as control). The packed rockets at 0 °C retained ascorbic acid content while it decreased during storage at higher temperatures. The main losses in the appearance and vitamin C content were observed when the O 2 level reached about 0 kPa corresponding to the highest CO 2 accumulation in the bag (25 kPa). The off-odors from dimethyl sulfide (DMS), dimethyl disulfides (DMDS) and other volatiles were produced at 5° and 15 °C, changing the initial headspace fingerprint, which was best preserved at 0 °C. Results of this work showed that improper packaging condition may decrease the shelf-life of rocket leaves compared to storage in air, inducing loss of appearance score, the production of off-odors and the degradation of Vitamin C. No additional benefit was obtained by optimal gas composition when bags were stored at 0 °C, indicating that the use of low temperature was effective to slowing down degradation reactions. |
| Databáze: | OpenAIRE |
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