Polyphenol component and antioxidant activity of Thymus spp.

Potravinarstvo

Liudmyla Svidenko¹  Olena Vergun²  Olga Grygorieva³  Ján Brindza⁴  Eva Ivanišová⁵  Vladimíra Horčinová Sedláčková⁶  Katarína Fatrcová Šramková⁷ 

[1] Experimental Facility "Novokakhovska" of Rice Research Institute of Ukrainian Academy of Agrarian Sciences, Sadova 1, 74 999 Plodove, Kherson region, Ukraine, Tel.: [phone];M.M. Gryshko National Botanical Garden of the NAS of Ukraine, Cultural Flora Department, Timiryazevska 1, 04014, Kyiv, Ukraine, Tel.: [phone];M.M. Gryshko National Botanical Garden of the NAS of Ukraine, Department of Fruit Plants Acclimatisation, Timiryazevska 1, 04014, Kyiv, Ukraine, Tel.: [phone];Slovak University of Agricultural in Nitra, Faculty of Agrobiology and Food Resources, Institute of Biological Conservation and Biosafety, Trieda Andreja Hlinku 2, 949 76 Nitra, Slovakia, Tel: [phone];Slovak University of Agricultural in Nitra, Faculty of Biotechnology and Food Resources, Department of Plant Storage and Processing, Trieda Andreja Hlinku 2, 949 76 Nitra, Slovakia, Tel: [phone];Slovak University of Agriculture in Nitra, Faculty of Agrobiology and Food Resources, Institute of Biodiversity Conservation and Biosafety, Trieda Andreja Hlinku 2, 949 76 Nitra, Slovakia, Tel.: [phone];Slovak University of Agriculture, Faculty of Agrobiology and Food Resources, Department of Human Nutrition, Trieda A. Hlinku 2, 949 76 Nitra, Slovakia, Tel.: [phone];

关键词: Thymus;    polyphenol content;    antioxidant activity;   

DOI  :  10.5219/1715

来源: DOAJ

【 摘 要 】

This scientific work was aimed to evaluate the antioxidant potential of aromatic plants of Thymus spp. in the East of Ukraine. These plants are known as medicinal and food around the world. All antioxidant parameters were investigated spectrophotometrically: total content of polyphenols (TPC), the total content of phenolic acids (TPAC), the total content of flavonoids (TFC), molybdenum reducing power of extracts (MRP), and antioxidant activity by DPPH method (DPPH). Investigation of ethanolic extracts demonstrated that TPC varied from 57.89 to 123.67 mg/g gallic acid equivalent (GAE) DW for Th. pulegioides, from 61.43 to 168.18 mg GAE/g for Th. serpyllum, and from 47.36 to 115.67 mg GAE/g for Th. vulgaris. TPAC ranged from 27.36 to 50.22 mg/g caffeic acid equivalent (CAE) DW for Th. pulegioides, from 28.58 to 59.62 mg CAE/g for Th. serpyllum, and from 22.95 to 53.82 mg CAE/g for Th. vulgaris. TFC was determined in a range from 29.88 to 61.23 mg/g quercetin equivalent (QE) DW for Th. pulegioides, from 36.0 to 82.43 mg QE/g for Th. serpyllum, and from 24.59 to 55.41 mg QE/g for Th. vulgaris. MRP was detected in the range of 94.65 – 204.76 mg/g Trolox equivalent (TE) DW for Th. pulegioides, 96.06 – 219.0 mg TE/g for Th. serpyllum, and 87.56 – 215.43 mg TE/g for Th. vulgaris. The antioxidant activity of extracts by the DPPH method was 6.34 – 9.23 mg TE/g for Th. pulegioides, 8.11 – 9.21 mg TE/g for Th. serpyllum, and 4.97 – 9.53 mg TE/g for Th. vulgaris. It was established that polyphenol accumulation depended on the growth stage and species. For all species was found a strong correlation between TPC and TFC (r=0.938, 0.908, and 0.854). Investigated Thymus spp. are a valuable source of antioxidants that can be used in pharmacological studies and the food industry.

【 授权许可】

Unknown