Comparison of antioxidant and antimicrobial activities of tilia (Tilia argentea desf ex DC), sage (Salvia triloba L.), and black tea (Camellia sinensis) extracts

被引:320
作者
Yildirim, A [1 ]
Mavi, A
Oktay, M
Kara, AA
Algur, ÖF
Bilaloglu, V
机构
[1] Ataturk Univ, Kazim Karabekir Egitim Fakultesi, Kimya Egitimi Anabilim Dali, TR-25240 Erzurum, Turkey
[2] Ataturk Univ, Fen Edebiyat Fakultesi, Biyoloji Bolumu, TR-25240 Erzurum, Turkey
关键词
antioxidant activity; reducing power; antimicrobial activity; tilia; sage; black tea;
D O I
10.1021/jf000590k
中图分类号
S [农业科学];
学科分类号
09 ;
摘要
The antioxidant activity of the water extract of Tilia argentea Desf ex: DC was determined by the thiocyanate method. The antioxidant activity of the water extract increased with the increasing amount of lyophilized extract (50-400 mug) added into the linoleic acid emulsion. Statistically significant effect was determined in 100 mug and higher amounts. Antioxidant activities of water extracts of tilia (Tilia argentea Desf ex DC), sage (Salvia triloba L.), and two Turkish black teas commercially called Rite tea and young shoot tea (Camellia sinensis) were compared. For comparison studies, 100 mug portions of extracts were added into test samples. All samples were able to show statistically significant antioxidant effect. Both of the tea extracts showed highest antioxidant activities, nevertheless, differences between tilia and sage and tilia and tea were not statistically significant (for both cases p > 0.05). Like antioxidant activity, the reducing power of water extract of Tilia argentea Desf ex DC was also concentration dependent. Even in the presence of 50 mug of extract, the reducing power was significantly higher than that of the control (p < 0.05) in which there was no extract. Unlike antioxidant activity, the highest reducing power activity was shown by sage extract. Among the tea extracts, young shoot extract was the most effective one, however, it had significantly lower activity than sage (p < 0.05). Although tea flower had the lowest reducing power activity, it was higher than that of tilia. But this difference was not statistically significant (p > 0.05). From these results, we could suggest that although the reducing power of a substance may be an indicator of its potential antioxidant activity, there may not always be a linear correlation between these two activities. In addition, antimicrobial activities of each of the above extracts were studied by disk diffusion methods on different test microorganisms. None of the extracts showed antibacterial activity on the studied microorganisms.
引用
收藏
页码:5030 / 5034
页数:5
相关论文
共 36 条
[1]  
Alho H, 1999, METHOD ENZYMOL, V299, P3
[2]   Free radicals, oxidative stress, and antioxidants in human health and disease [J].
Aruoma, OI .
JOURNAL OF THE AMERICAN OIL CHEMISTS SOCIETY, 1998, 75 (02) :199-212
[3]   EFFECTS OF ALCEA-PALLIDA L (A) AND TILIA-ARGENTEA DESF EX DC INFUSIONS ON SWIMMING PERFORMANCE IN MICE [J].
AYDIN, S ;
OZTURK, Y ;
BASER, KHC ;
KIRIMER, N ;
KURTAROZTURK, N .
PHYTOTHERAPY RESEARCH, 1992, 6 (04) :219-220
[4]   Total antioxidant capacity of teas by the ferric reducing/antioxidant power assay [J].
Benzie, IFF ;
Szeto, YT .
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY, 1999, 47 (02) :633-636
[5]   TOXICOLOGY AND BIOCHEMISTRY OF BUTYLATED HYDROXYANISOLE AND BUTYLATED HYDROXYTOLUENE [J].
BRANEN, AL .
JOURNAL OF THE AMERICAN OIL CHEMISTS SOCIETY, 1975, 52 (02) :59-63
[6]   Peroxynitrite-scavenging activity of green tea tannin [J].
Chung, HY ;
Yokozawa, T ;
Soung, DY ;
Kye, IS ;
No, JK ;
Baek, BS .
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY, 1998, 46 (11) :4484-4486
[7]   ANTIOXIDANT CONSTITUENTS IN SAGE (SALVIA-OFFICINALIS) [J].
CUVELIER, ME ;
BERSET, C ;
RICHARD, H .
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY, 1994, 42 (03) :665-669
[8]  
DAVIES KJA, 1994, BIOCH SOC S, V61, P1
[9]   Will the 'Good fairies' please prove to us that vitamin E lessens human degenerative disease? (vol 26, pg 565, 1996) [J].
Diplock, AT .
FREE RADICAL RESEARCH, 1997, 27 (05) :511-532
[10]   Antioxidant activity of burdock (Arctium lappa Linne):: Its scavenging effect on free-radical and active oxygen [J].
Duh, PD .
JOURNAL OF THE AMERICAN OIL CHEMISTS SOCIETY, 1998, 75 (04) :455-461