1.karuppanapandian T, Moon JC, Kim C, Manoharan K, Kim W. Reactive oxygen species in plants: their generation, signal transduction, and scavenging mechanisms. Aust J Crop Sci 2011; 6: 709-725.
2.Ahmad P, Sarwat M, Sharma S. Reactive oxygen species, antioxidants and signaling in plants. J Plant Biol 2008; 51:167-173.
3.Mittler R, Vanderauwera S, Gollery M, Van Breusegem F. Reactive oxygen gene network of plants. Trends plant Sci 2004; 9: 490-498.
4.Kratchanova M, Denev P, Ciz M, Lojek A, Mihailow A. Evaluation of antioxidant activity of medicinal plants containing polyphenol compounds: comparison of two extraction systems. Acta Biochimica Polonica 2010; 57: 229-234.
5.Shan B, Yizhong Z, Sun M, Corke H. Antioxidant capacity of 26 spice extracts and characterization of their phenolic constituents. J Agric Food Chem 2005; 53: 7749-7759.
6.Szydlowska-Czerniak A, Amarowicz R, Szlyk E. Antioxidant capacity of rapeseed meal and rapeseed oils enriched with meal extract. Eur J Lipid Sci Technol 2010; 112: 750-760.
7.Apel K, Hirt H. Reactive oxygen species: metabolism, oxidative stress and signal transduction. Annu Rev Plant Biol 2004; 55: 373-399.
8.Arora A, Sairam PK, Srivastave GC. Oxidative stress and antioxidative systems in plants. Curr Sci 2002; 82: 1227-1238.
9.Fang YZ, Yang S, Wu G. Free radicals, antioxidants, and nutrition. Nutrition 2002; 18: 827-879.
10.Sohn YG, Lee BH, Kang KY, Lee JJ. Effects of NaCl stress on germination, antioxidant responses, and proline content in two rice cultivars. J Plant Biol 2005; 48:201-208.
11.Cho UH, Park JO. Changes in hydrogen peroxide content and activities of antioxidant enzymes in tomato seedlings exposed to mercury. J Plant Biol 1999; 42:41-48.
12.Oktay M, Gulcin I, Kufreviog I. Determination of in vitro antioxidant activity of fennel (Foeniculum Vulgare) Seed extracts. LWT-Food Sci Technol 2003; 36: 263-271.
13.Conforti F, Sosa S, Marrelli M, Menichini F, Statti GA, Uzunov D, Tubaro A, Menichini F. The protective ability of Mediterranean dietary plants against the oxidative damage: the role of radical oxygen species in inflammation and the polyphenol, flavonoid and sterol contents. Food Chem 2009; 112: 587-594.
14.Marxen K, Vanselow KH, Lippemeier S, Hintze R, Ruser A, Hansen UP. Determination of DPPH radical oxidation caused by methanolic extracts of some microalgal species by linear regression analysis of spectrophotometric measurements. Sensors 2007; 7: 2080-2095.
15.Koleva II, van Beek TA, Linssen JPH, de Groot A, Evstatieva LN. Screening of plant extracts for antioxidant activity: a comparative study on three testing methods. Phytochem Anal 2002; 13: 8-17.
16.Barlow SM. Toxicological aspects of antioxidants used as food additives. In: Hudson BIF (ed) Food antioxidants. Springer Netherlands, 1999; PP 253-307.
17.Hinneburg I, Damien Dorman HJ, Hiltunen R. Antioxidant activities of extracts from selected culinary herbs and spices. Food Chem 2006; 97: 122-129.
18.Martinez-Tome M, Jimenez AM, Ruggieri S, Frega N, Strabbioli R, Murcia MA. Antioxidant properties of mediterranean spices compared with common food additives. J Food Protect 2001; 64: 1412-1419.
19.Li HB, Cheng KW, Wong CC, Fan KW, Chen F, Jiang Y. Evaluation of antioxidant capacity and total phenolic content of different fractions of selected microalgae. Food Chem 2007; 102: 771-776.
20.Javanmardi J, Stushnoff C, Locke E, Vivanco JM. Antioxidant activity and total phenolic content of Iranian Ocimum accessions. Food Chem 2003; 83: 547-550.
21.Velioglu YS, Mazza G, Gao L, Oomah BD. Antioxidant activity and total phenolics in selected fruits, vegetables, and grain products. J Agr Food Chem 1998; 46: 4113-4117.
22.Liu D, Shi J, Colina Ibarra A, Kakuda Y, Xue SJ. The scavenging capacity and synergistic effects of lycopene, vitamin E, vitamin C, and β-carotene mixtures on the DPPH free radical. LWT- Food Sci Technol 2008; 41: 1344-1349.
23.Jung CH, Maeder V, Funk F, Frey B, Sticher H, Frosserd E. Release of phenols from Lupinus albus L. roots exposed to Cu and their possible role in Cu detoxification. Plant Soil 2003; 252: 301-307.
24.Ayan AK, Cirak C, Yanar O. Variations in total phenolics during ontogenic, morphogenetic, and diurnal cycles in Hypericum species from Turkey. J Plant Biol 2006; 49:432-439.
25.Ciz M, Cizova H, Denev P, Kratchanova M, Slavov A, Lojek A. Different methods for control and comparison of the antioxidant properties of vegetables. Food Control 2010; 21: 518-523.
26.Singleton V, Rossi J. Colorimetery of total phenolics with phosphomolibdic-phosphotungastic acid reagents. Am J Enol Vitic 1965; 16: 144-158.
27.Miller NJ, Rice-Evans C. Spectrophotometric determination of antioxidant activity. Redox Rep 1996; 2(3): 161-171.
28.Schwarz K, Bertelsen G, Nissen LR, Gardner PT, Heinonen MI, Hopia A, Huynh-Ba T, Lambelet P, McPhail D, Skibsted LH, Tijburg L. Investigation of plant extracts for the protection of processed foods against lipid oxidation. Comparison of antioxidant assays based on radical scavenging, lipid oxidation and analysis of the principal antioxidant compounds. Eur Food Res Technol 2001; 212: 319-328.
29.Everette JD, Bryant QM, Green AM, Abbey YA, Wangila GW, Walker RB. Thorough study of reactivity of various compound classes toward the Folin- Ciocalteu reagent. J Agric Food Chem 2010; 58: 8139-8144.
30.Huang D, Ou B, Prior RL. The chemistry behind antioxidant capacity assays. J Agric Food Chem 2005; 53: 1841-1856.
31.Thakkar KN, Mhatre SS, Parikh RY. Biological synthesis of metallic nanoparticles. Nanomedicine 2009; 6: 257-262.
32.Christensen L, Vivekanandhan S, Misra M, Mohanty AK. Biosynthesis of silver nanoparticles using murraya koenigii (curry leaf): an investigation on the effect of broth concentration in reduction mechanism and particle size. Adv Mat Lett 2011; 2: 429-434.
33.Song JY, Kim BS. Rapid biological synthesis of silver nanoparticles using plant leaf extracts. Bioprocess Biosyst Eng 2009; 32:79-84.
34.Thaipong K, Boonprakob U, Crosby K, Cisneros-Zevallos L, Hawkins Byrne D. Comparison of ABTS, DPPH, FRAP, and ORAC assays for estimating antioxidant
activity from guava fruit extracts. J Food Comp Anal 2006; 19: 669–675.
35.Shankar S, Ahmad A, Sastry M. Geranium leaf assisted biosynthesis of silver nanoparticles. Biotechnol Prog 2003; 19(6):1627-1631.
36.Chandran SP, Chaudhary M, Pasricha R, Ahmad A, Sastry M. Synthesis of gold nanotriangles and silver nanoparticles using Aloe vera plant extract. Biotechnol Prog 2006; 22:577-583.
37.Mason C, Vivekanandhan S, Misra M, Mohanty AK. Switchgrass (Panicum virgatum) extract mediated green synthesis of silver nanoparticles. World J Nano Sci Eng 2012; 2:47-52.
38.Song JY, Kim BS. Biological synthesis of biometallic Au/Ag nanoparticles using persimmon (Diopyros Kaki) leaf extracts. Korean J chem Eng 2008; 25:808-811.
39.Sathishkumar K, Seneha K, Won SW, Cho CW, Kim S, Yun YS. Cinnamon zeylanicum bark extract and powder mediated green synthesis of nano-crystalline silver particles and its bactericidal activity. Colloids and surface B: Biointerfaces 2009; 73: 332-338.
40.Babu SA, Prabu HG. Synthesis of Ag NPs using the extract of Calotropis Procera flower at room temperature. Mater lett 2011; 65:1675-1677.
41.Phillip D. Mangifera Indica leaf-assisted biosynthesis of well-dispersed silver nanoparticles. Spectrochim Acta Mol Biomol Spectros 2011; 78: 327-331.
42.Shankar SS, Rai A, Ahmad A, Sastry M. Rapid synthesis of Au, Ag, and bimetallic Au core Ag shell nanoparticles using Neem (Azadirachta indica) leaf broth. J Colloid Interface Sci 2004; 275:496-502.
43.Mason C, Vivekanandhan S, Misra M, Mohanty AK. Switchgrass (Panicum virgatun) extract mediated green synthesis of silver nanoparticles. World J nano Sci Eng 2012; 2:47-52.
44.Wojdylo A, Oszmianski J, Czemerys R. Antioxidant activity and phenolic compounds in 32 selected herbs. Food Chem 2007; 105: 940-949.
45.Katalinic V, Milos M, Kulisic T, Jukic M. Screening of 70 medicinal Plant extracts for antioxidant capacity and total phenols. Food Chem 2006; 94: 550-557.
46.Stef DS, Gergen I, Trasca TL, Monica H, Stef L, Biron MG. Total antioxidant and radical scavenging capacities for different medicinal herbs. Romanian Biotechnol Lett 2009; 14: 4704-4709.
47.Kahkonen MP, Hopia AI, Vourela HJ, Rauha JP, Pihlaja K, Kujala TS, Heinonen M. Antioxidant activity of palnt extracts containing phenolic compounds. J Agric Food Chem 1999; 47: 3954-3962.
48.Rice-evans CA, Miller NJ, Bolwell PG, Bramley PM, Pridham JB. The relative antioxidant activities of plant-derived polyphenolic flavonoids. Free Radical Res 1995; 22: 375-383.
49.Schuler P. Natural antioxidants exploited commercially. In Food Antioxidants, Hudson BJF (ed.). Elsevier, London, 1990, pp 99-170.