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Molecules 2014, 19(6), 8177-8188; doi:10.3390/molecules19068177
Article

Influence of Temperature and Preserving Agents on the Stability of Cornelian Cherries Anthocyanins

 and *
Received: 2 April 2014; in revised form: 29 May 2014 / Accepted: 10 June 2014 / Published: 17 June 2014
(This article belongs to the Special Issue Anthocyanins)
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Abstract: Cornelian cherry (Cornus mas L.) fruits are known for their significant amounts of anthocyanins which can be used as natural food colorants. The storage stability of anthocyanins from these fruit extracts, at different temperatures (2 °C, 25 °C and 75 °C), pH 3.02, in the presence of two of the most widely employed food preserving agents (sodium benzoate and potassium sorbate) was investigated. The highest stability was exhibited by the anthocyanin extract stored at 2 °C without any added preservative, with half-life and constant rate values of 1443.8 h and 0.48 × 10−3 h−1, respectively. The highest value of the degradation rate constant (82.76 × 10−3/h) was obtained in the case of anthocyanin extract stored at 75 °C without any added preservative. Experimental results indicate that the storage degradation of anthocyanins followed first-order reaction kinetics under each of the investigated conditions. In aqueous solution, the food preservatives used were found to have a slight influence on the anthocyanins’ stability.
Keywords: anthocyanins; degradation kinetics; potassium sorbate; sodium benzoate anthocyanins; degradation kinetics; potassium sorbate; sodium benzoate
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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MDPI and ACS Style

Moldovan, B.; David, L. Influence of Temperature and Preserving Agents on the Stability of Cornelian Cherries Anthocyanins. Molecules 2014, 19, 8177-8188.

AMA Style

Moldovan B, David L. Influence of Temperature and Preserving Agents on the Stability of Cornelian Cherries Anthocyanins. Molecules. 2014; 19(6):8177-8188.

Chicago/Turabian Style

Moldovan, Bianca; David, Luminiţa. 2014. "Influence of Temperature and Preserving Agents on the Stability of Cornelian Cherries Anthocyanins." Molecules 19, no. 6: 8177-8188.


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