AI Article Synopsis
- * Researchers developed a new method to evaluate how stable this extract is over time by testing it under different temperature and humidity conditions, focusing on the degradation of cyanidin-3-glucoside (C3G), which helps track the extract's overall stability.
- * The study found that the current formulation with Arabic gum didn't adequately preserve the MCE, predicting a shelf-life of only 26-33 days, suggesting a need for a better formulation to increase the extract's longevity.
Article Abstract
Moradyn is an Italian purple corn variety whose cobs represent a rich source of polyphenols. At the industrial level, they are used to produce a dried extract (MCE) by the addition of 20% Arabic gum. In order to evaluate the extract solid-state stability, an innovative accelerated stress protocol was developed following the isoconversion approach. The degradation kinetics of cyanidin-3--glucoside (C3G), the most suitable marker to monitor the overall MCE degradation status, was monitored under five temperature-humidity (RH) combinations. These data were used to build a mathematical model, able to estimate the C3G stability at 25 °C and 30% RH, whose predictiveness was further assessed by comparing the predicted vs. experimental C3G isoconversion time. Finally, by applying this model, the expiry date of the extract was calculated to be within 26-33 days, confirming that the addition of 20% Arabic gum is insufficient to stabilize MCE and highlighting the need of a new formula in order to prolong MCE shelf-life.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8307474 | PMC |
| http://dx.doi.org/10.3390/foods10071617 | DOI Listing |
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