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Use of Modified Phenolic Thyme Extracts (Thymus vulgaris) with Reduced Polyphenol Oxidase Substrates as Anthocyanin Color and Stability Enhancing Agents.
Molecules. 2015 Dec 14; 20(12):22422-34.M

Abstract

Residual enzymatic activity in certain foods, particularly of polyphenoloxidase (PPO), is responsible for the majority of anthocyanin degradation in food systems, causing also parallel losses of other relevant nutrients. The present work explored the feasibility of modifying phenolic profiles of thyme extracts, by use of chromatographic resins, to obtain phenolic extracts capable of enhancing anthocyanin colour and stability in the presence of PPO activity. Results indicated that pretreatment of thyme extracts with strong-anion exchange resins (SAE) enhanced their copigmentation abilities with strawberry juice anthocyanins. Phenolic chromatographic profiles, by HPLC-PDA, also demonstrated that thyme extracts subjected to SAE treatments had significantly lower concentrations of certain phenolic compounds, but extracts retained their colour enhancing and anthocyanin stabilization capacities though copigmentation. Additional testing also indicated that SAE modified extract had a lower ability (73% decrease) to serve as PPO substrate, when compared to the unmodified extract. Phenolic profile modification process, reported herein, could be potentially used to manufacture modified anthocyanin-copigmentation food and cosmetic additives for colour-stabilizing applications with lower secondary degradation reactions in matrixes that contain PPO activity.

Authors+Show Affiliations

Centro de Biotecnología-FEMSA, Escuela de Ingeniería y Ciencias, Tecnológico de Monterrey, Campus Monterrey, Ave. Eugenio Garza Sada 2501 Sur, Monterrey, NL 64849, Mexico. alex.aguilar@itesm.mx.Centro de Biotecnología-FEMSA, Escuela de Ingeniería y Ciencias, Tecnológico de Monterrey, Campus Monterrey, Ave. Eugenio Garza Sada 2501 Sur, Monterrey, NL 64849, Mexico. chbrenes@itesm.mx.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

26694329

Citation

Aguilar, Oscar, and Carmen Hernández-Brenes. "Use of Modified Phenolic Thyme Extracts (Thymus Vulgaris) With Reduced Polyphenol Oxidase Substrates as Anthocyanin Color and Stability Enhancing Agents." Molecules (Basel, Switzerland), vol. 20, no. 12, 2015, pp. 22422-34.
Aguilar O, Hernández-Brenes C. Use of Modified Phenolic Thyme Extracts (Thymus vulgaris) with Reduced Polyphenol Oxidase Substrates as Anthocyanin Color and Stability Enhancing Agents. Molecules. 2015;20(12):22422-34.
Aguilar, O., & Hernández-Brenes, C. (2015). Use of Modified Phenolic Thyme Extracts (Thymus vulgaris) with Reduced Polyphenol Oxidase Substrates as Anthocyanin Color and Stability Enhancing Agents. Molecules (Basel, Switzerland), 20(12), 22422-34. https://doi.org/10.3390/molecules201219854
Aguilar O, Hernández-Brenes C. Use of Modified Phenolic Thyme Extracts (Thymus Vulgaris) With Reduced Polyphenol Oxidase Substrates as Anthocyanin Color and Stability Enhancing Agents. Molecules. 2015 Dec 14;20(12):22422-34. PubMed PMID: 26694329.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Use of Modified Phenolic Thyme Extracts (Thymus vulgaris) with Reduced Polyphenol Oxidase Substrates as Anthocyanin Color and Stability Enhancing Agents. AU - Aguilar,Oscar, AU - Hernández-Brenes,Carmen, Y1 - 2015/12/14/ PY - 2015/10/16/received PY - 2015/11/06/revised PY - 2015/11/18/accepted PY - 2015/12/24/entrez PY - 2015/12/24/pubmed PY - 2016/10/7/medline KW - anthocyanins KW - copigmentation KW - phenolics KW - polyphenoloxidase (PPO) KW - thyme extracts SP - 22422 EP - 34 JF - Molecules (Basel, Switzerland) JO - Molecules VL - 20 IS - 12 N2 - Residual enzymatic activity in certain foods, particularly of polyphenoloxidase (PPO), is responsible for the majority of anthocyanin degradation in food systems, causing also parallel losses of other relevant nutrients. The present work explored the feasibility of modifying phenolic profiles of thyme extracts, by use of chromatographic resins, to obtain phenolic extracts capable of enhancing anthocyanin colour and stability in the presence of PPO activity. Results indicated that pretreatment of thyme extracts with strong-anion exchange resins (SAE) enhanced their copigmentation abilities with strawberry juice anthocyanins. Phenolic chromatographic profiles, by HPLC-PDA, also demonstrated that thyme extracts subjected to SAE treatments had significantly lower concentrations of certain phenolic compounds, but extracts retained their colour enhancing and anthocyanin stabilization capacities though copigmentation. Additional testing also indicated that SAE modified extract had a lower ability (73% decrease) to serve as PPO substrate, when compared to the unmodified extract. Phenolic profile modification process, reported herein, could be potentially used to manufacture modified anthocyanin-copigmentation food and cosmetic additives for colour-stabilizing applications with lower secondary degradation reactions in matrixes that contain PPO activity. SN - 1420-3049 UR - https://www.unboundmedicine.com/medline/citation/26694329/Use_of_Modified_Phenolic_Thyme_Extracts__Thymus_vulgaris__with_Reduced_Polyphenol_Oxidase_Substrates_as_Anthocyanin_Color_and_Stability_Enhancing_Agents_ L2 - https://www.mdpi.com/resolver?pii=molecules201219854 DB - PRIME DP - Unbound Medicine ER -