Abstract
Garden cress (Lepidium sativum), a member of the Brassicaceae family, is an underutilised crop in Europe and Turkey. The dry matter content, crude protein, ascorbic acid, minerals (N, P, K, Ca, Mg, Na, Fe, B, Cu, Na, Zn, Mn), the total phenolic content and the total antioxidant capacity of two garden cress cultivars, Izmir and Dadas, were studied. The results of mineral element analysis of both cultivars revealed that they had a high P, K, Ca, Mg and Na content. Both cultivars studied appeared to have exceptionally high levels of protein when compared with common vegetables. The mean ascorbic acid content of Dadas and Izmir cultivars were 54 and 74 mg 100 g-1 f.w., respectively. The total phenolic content of the garden cress leaves varied from 0.573 (Dadas) to 0.774 (Izmir) mg GAE · g-1 fw and from 6.332 (Dadas) to 7.401 (Izmir) mg GAE · g-1 dw. Antioxidant activities by 2-diphenyl-1-picryhydrazyl (DPPH) free-radical-scavenging assays for EC50 were determined as 330.99 (Dadas) and 346.65 (Izmir) for fw, and 128.08 and 85.97 (Izmir) for dw, respectively. Based on the results of the experiment reported herein, they may serve as a potential dietary source of some mineral and natural phenolic antioxidants. Our results imply garden cress as potential source for alternative dietary supplements of minerals and natural phenolic antioxidants.
References
AOAC, 1984. Officials methods of analysis (14th ed.). Association of Official Analytical Chemist, Arlington, USA.
Bremner J.M., 1996. Nitrogen-total. In: Methods of soil analysis part 3: chemical methods, Bartels J.M., Bigham J.M. (eds.). SSSA-ASAgronomy, Madison, Wisconsin, 1085–1121.
Burits M., Bucar F., 2000. Antioxidant activity of Nigella sativa essential oil. Phytother. Res. 14, 323–328.
Dannehl D., Huyskens-Keil S., Wendorf D., Ulrichs C., Schmidt U., 2012. Influence of intermittent-direct-electric-current (IDC) on phytochemical compounds in garden cress during growth. Food Chem., 131, 239–246.
Diwakar B.T., Dutta P.K.. Lokesh B.R., Naidu K.A., 2010. Physicochemical properties of garden cress (Lepidium sativum L.) Seed Oil, AOCS 87, 539–548.
Ercisli S., 2004. A short review of the fruit germplasm resources of Turkey. Genet. Res. Crop Evol. 51, 419–435.
Lorenz O.A, Maynhart D.N., 1980. Knott’s handbook for vegetable growers. New York, John Wiley, USA.
McCollum J.P., 1992. Vegetable vrops. Danville, Interstate Publ. Inc. USA.
Mertens D., 2005a. AOAC Official Method 922.02. Plants Preparation of Laboratuary Sample. Official Methods of Analysis, 18th edn. Horwitz W., G.W. Latimer (eds). Chapter 3, pp1-2, AOAC-International Suite 500, 481. North Frederick Avenue, Gaitherburg, Maryland, USA.
Mertens D., 2005b. AOAC Official Method 975.03. Metal in Plants and Pet Foods. Official Methods of Analysis, 18th edn. Horwitz W., G.W. Latimer (eds). Chapter 3, pp 3–4, AOACInternational Suite 500, 481. North Frederick Avenue, Gaitherburg, Maryland, USA.
Oz O., 2011. Effects of storage on composition of some vegetables of boiled and drying. Master Thesis. Ataturk University, Graduate School of Natural and Applied Science.
Podsędek A., 2007. Natural antioxidants and antioxidant capacity of Brassica vegetables: A review. LWT 40, 1.
Sarikamis G., Yanmaz R., 2011. Effects of cultivar and developmental stage on glucosinolates in garden cress (Lepidium sativum L.). J. Med. Plant. Res. 5(17), 4388–4392.
Sengul M., Yildiz H., Ercisli S., Yildirim E., Turan M., Ozdemir O., Sener, D., 2011. Some phytochemical characteristics of turnip (Brassica rapa var. rapa L.) roots. Ital. J. Food Sci. 23(3), 338–343.
Singleton V.L., Rossi J.A., 1965. Colorimetry of total phenolics with phosphomolybdic–phosphotungstic acid reagents. Am. J. Enol. Viticul. 16, 144–158.
Slinkard K., Singleton V.L., 1977. Total phenol analyses: automation and comparison with manual methods. Am. J. Enol. Vitic. 28, 49–55.
Soengas P., Cartea M.E., Francisco M., Sotelo T., Velasco P., 2012. New insights into the antioxidant activity of Brassica crops. Food Chem. 134, 725–733.
Splittstoesser W.E., 1990. Vegetable growing handbook. Westport, Avi Publ. Co. Inc., USA.
Tosun M., Ercisli S., Ozer H., Turan M., Polat T., Ozturk E., Padem H., Kilicgun H., 2012. Chemical composition and antioxidant activity of foxtail lily (Eremurus spectabilis). Acta Sci. Pol., Hortorum Cultus 11(3), 145–153.
Tuncay O., Esiyok D., Yagmur B., Okur B., 2011. Yield and quality of garden cress affected by different nitrogen sources and growing period. Afr. J. Agric. Res. 6(3), 608–617.
Wang S.Y., Zheng W., 2001. Effect of plant growth temperature on the antioxidant capacity in strawberries. J. Agric. Food Chem. 49, 4977.
Williams D.E., 1993. Lycianthes moziniana (Solanaceae): an underutilized Mexican food plant with ‘new’ crop potential. Econ Bot. 47(4), 387–400.
Yanmaz R., Yildirim E., Koyuncu D., 2010. A New Garden Cress (Lepidium sativum var. sativum) variety for Turkey: Dadas. J. Agric. Fac. Ataturk Uni. 41(2), 91–95.
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