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Investigation into the antioxidant activity and chemical composition of alcoholic extracts from defatted marigold (Tagetes erecta L.) residue.
Fitoterapia. 2012 Apr; 83(3):481-9.F

Abstract

The influence of various solvents on the yield of polyphenols from defatted marigold residue, the antioxidant activity of the extracts and the composition of antioxidant compounds in the extracts were investigated. The content of total phenolics and flavonoids in the extracts was significantly varied with different solvents (P<0.05) and the extract by ethyl alcohol (EtOH)/water (7:3, v/v) has the highest content of total phenolics and flavonoids, 62.33 mg gallic acid equivalents (GAE)/g and 97.00 mg rutin equivalent (RE)/g, respectively. The antioxidant activity of the extracts was evaluated by radical (2,2'-azino-bis-(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS), 1,1-diphenyl-2-picrylhydrazyl (DPPH)) scavenging and ferric reducing antioxidant power (FRAP) assays. The results of the correlation analysis showed that the antioxidant activity was well correlated with the content of total phenolics and flavonoids (R²>0.900). Antioxidant components in the extracts were identified by combined on-line HPLC-ABTS·+ post-column assay and HPLC-DAD-MS method. Gallic acid, gallicin, quercetagetin, 6-hydroxykaempferol-O-hexoside, patuletin-O-hexoside and quercetin were the dominant antioxidant compounds in the extracts, and quercetagetin was identified as the strongest antioxidant capacity.

Authors+Show Affiliations

College of Food Science & Nutritional Engineering, China Agricultural University, Beijing, China.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

22223143

Citation

Gong, Ying, et al. "Investigation Into the Antioxidant Activity and Chemical Composition of Alcoholic Extracts From Defatted Marigold (Tagetes Erecta L.) Residue." Fitoterapia, vol. 83, no. 3, 2012, pp. 481-9.
Gong Y, Liu X, He WH, et al. Investigation into the antioxidant activity and chemical composition of alcoholic extracts from defatted marigold (Tagetes erecta L.) residue. Fitoterapia. 2012;83(3):481-9.
Gong, Y., Liu, X., He, W. H., Xu, H. G., Yuan, F., & Gao, Y. X. (2012). Investigation into the antioxidant activity and chemical composition of alcoholic extracts from defatted marigold (Tagetes erecta L.) residue. Fitoterapia, 83(3), 481-9. https://doi.org/10.1016/j.fitote.2011.12.013
Gong Y, et al. Investigation Into the Antioxidant Activity and Chemical Composition of Alcoholic Extracts From Defatted Marigold (Tagetes Erecta L.) Residue. Fitoterapia. 2012;83(3):481-9. PubMed PMID: 22223143.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Investigation into the antioxidant activity and chemical composition of alcoholic extracts from defatted marigold (Tagetes erecta L.) residue. AU - Gong,Ying, AU - Liu,Xuan, AU - He,Wen-Hao, AU - Xu,Hong-Gao, AU - Yuan,Fang, AU - Gao,Yan-Xiang, Y1 - 2011/12/22/ PY - 2011/10/28/received PY - 2011/12/10/revised PY - 2011/12/12/accepted PY - 2012/1/7/entrez PY - 2012/1/10/pubmed PY - 2012/9/5/medline SP - 481 EP - 9 JF - Fitoterapia JO - Fitoterapia VL - 83 IS - 3 N2 - The influence of various solvents on the yield of polyphenols from defatted marigold residue, the antioxidant activity of the extracts and the composition of antioxidant compounds in the extracts were investigated. The content of total phenolics and flavonoids in the extracts was significantly varied with different solvents (P<0.05) and the extract by ethyl alcohol (EtOH)/water (7:3, v/v) has the highest content of total phenolics and flavonoids, 62.33 mg gallic acid equivalents (GAE)/g and 97.00 mg rutin equivalent (RE)/g, respectively. The antioxidant activity of the extracts was evaluated by radical (2,2'-azino-bis-(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS), 1,1-diphenyl-2-picrylhydrazyl (DPPH)) scavenging and ferric reducing antioxidant power (FRAP) assays. The results of the correlation analysis showed that the antioxidant activity was well correlated with the content of total phenolics and flavonoids (R²>0.900). Antioxidant components in the extracts were identified by combined on-line HPLC-ABTS·+ post-column assay and HPLC-DAD-MS method. Gallic acid, gallicin, quercetagetin, 6-hydroxykaempferol-O-hexoside, patuletin-O-hexoside and quercetin were the dominant antioxidant compounds in the extracts, and quercetagetin was identified as the strongest antioxidant capacity. SN - 1873-6971 UR - https://www.unboundmedicine.com/medline/citation/22223143/Investigation_into_the_antioxidant_activity_and_chemical_composition_of_alcoholic_extracts_from_defatted_marigold__Tagetes_erecta_L___residue_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0367-326X(11)00327-3 DB - PRIME DP - Unbound Medicine ER -