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Chenping Xu and Beiquan Mou

.20 mL distilled water were added, then A 510 was measured immediately ( Dewanto et al., 2002 ). A (+)-catechin hydrate equivalents (CHE) standard curve was prepared from a freshly made solution. Protein and amino acid contents. Leaf samples (about 2 g

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Justine E. Vanden Heuvel and Wesley R. Autio

of TAcy, TF, and TP followed the method of Onayemi et al. (2006) ; however, TP was calculated as gallic acid equivalents as opposed to catechin equivalents, and a Hitachi U-1100 (Hitachi America Ltd., Brisbane, CA) spectrophotometer was used. All

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Pedro Domínguez, Juan J. Medina, José M. López-Aranda, María T. Ariza, Luis Miranda, Iraida Amaya, José F. Sánchez-Sevilla, Rosalía Villalba, and Carmen Soria

., 2002 ) and expressed as milligrams of catechin equivalent (CE) per 100 g fresh weight. Total anthocyanins were determined following the procedure of Cheng and Breen (1991) and expressed as milligrams of pelargonidin-3 glucoside equivalent (Pg-3-gluc

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Hisayo Yamane, Megumi Ichiki, Ryutaro Tao, Tomoya Esumi, Keizo Yonemori, Takeshi Niikawa, and Hino Motosugi

(725 nm) (Shimadzu; ultraviolet-1600). The tannin concentration was expressed as (+)-catechin equivalents. For ascorbate (vitamin C) analysis, samples were homogenized with 5% meta -phosphoric acid and centrifuged. Ascorbate and dehydroascorbate

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Panthip Boonsong, Natta Laohakunjit, Orapin Kerdchoechuen, and Frank B. Matta

spectrophotometric assays to measure antioxidants. Plant extracts were mainly polynuclear compounds: polyphenols, tannins, flavonols and flavonols–catechin, taxopholin, and quercetin. Panayotov et al. (2006) reported that the quantities of flavonols (large group of

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Camila P. Croge, Francine L. Cuquel, Paula T.M. Pintro, Luiz A. Biasi, and Claudine M. De Bona

; catechin; hydrochloric acid; 2.2-diphenyl-1-picrylhydrazyl (DPPH); ethanol; Folin–Ciocalteu reagent; gallic acid; methanol; potassium sulfate; potassium persulfate; sodium carbonate; sodium hydroxide; sulfuric acid; and oxalic acid. Fruits were stored under

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Satoru Motoki, Tianli Tang, Takumi Taguchi, Ayaka Kato, Hiromi Ikeura, and Tomoo Maeda

lines in an anticancer drug screen panel Planta Med. 68 297 301 Kalinova, J. Vrchotava, N. 2009 Level of catechin, myricetin, quercetin and isoquercitrin in buckwheat ( Fagopyrum esculentum Moench), changes of their levels during vegetation and their

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Kim E. Hummer

. The phenolics are the biochemical motif most active in Rubus plants for ethnomedicinal applications. Rubus phenolics include the flavonoids, potent in vitro antioxidants, including compounds such as flavones, isoflavones, flavonones, catechins, and

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Vladislav Ognjanov, Maja Miodragović, Goran Barać, Dejan Prvulović, Mirjana Ljubojević, Jovana Dulić, and Dušica Dorić

using SSR and AFLP marker J. Amer. Soc. Hort. Sci. 128 904 909 Sun, B. Ricardo-da-Silva, J.M. Spranger, I. 1998 Critical factors of vanillin assay for catechins and proanthocyanidins J. Agr. Food Chem. 46 4267 4274 Thaipong, K. Boonprakob, U. Crosby, K

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Natalia Falagán, Francisco Artés, Perla A. Gómez, Francisco Artés-Hernández, Alejandro Pérez-Pastor, Jose M. de la Rosa, and Encarna Aguayo

neochlorogenic acid, catechin, and caffeic acid. However, in the pulp, neochlorogenic acid was the most abundant followed by caffeic acid. All of these individual phenolics were particularly high in fruit from RDI 2 followed by RDI 1 . All the samples suffered a