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. Cheynier, V. Moutounet, M. 1999 Competition between (+)-catechin and (−)-epicatechin in acetaldehyde-induced polymerization of flavanols J. Agr. Food Chem. 47 2088 2095 Fernandez-Trujillo, J.P. Nock, J

at 540 nm. Results were expressed as milligrams of catechin equivalent per gram fresh weight. Results Light intensity and leaf temperature. The daily maximum air temperature in the shade plot was ≈37 °C, 2 to 5 °C lower than in the control (data not

-performance liquid chromatography (HPLC) technique based on the European Standard (2003) . The analyses of total polyphenols were completed according to the Folin-Denis method, spectrophotometrically at 760 nm, using catechin as the standard ( Association of

catechin and epicatechin, and flavonols such as quercetin 3-rutinoside have been identified in peaches and plums ( Kim et al., 2003a ; Tomás-Barberán et al., 2001 ). Anthocyanins and other phenolic compounds are responsible for many health benefits

, F.A. 1997 Oxidation of chlorogenic acid, catechins, and 4-methylcatechol in model solutions by combinations of pear ( Pyrus communis cv. Williams) polyphenol oxidase and peroxidase: A possible involvement of peroxidase in enzymatic browning J. Agr

, M. Takada, K. Makimura, M. Otake, S. 2002 Improvement of periodontal status by green tea catechin using a local delivery system: a clinical pilot study Alt. Med. Rev. 37 433 438 Kainulanaine, P

were tentatively identified by Abu-Reidah et al. (2013) . The individual compounds that predominate are quercetin and kaempferol as the main flavonol glucosides along with (+) catechin and (−) epicatechin, chlorogenic and protocatechuic acids, as well

nitrification and N 2 O emissions, and it is hypothesized to be due to biological molecules (i.e., allelochemicals such as gallocatechin and catechin) added from the litter to the soil ( Castaldi et al., 2009 ). Kiran and Patra (2003) evaluated the effect of

, catechins, and epicatechin. Quantitative analysis using standards was performed ( Table 5 ). Table 5. The composition and content of flavones and flavonols in ‘Black girl’ and ‘Romance’. Measurement of the spathe carotenoid extract using ultraviolet

, isoflavones, catechins, anthocyanidins, and chalcones. These metabolites have a broad spectrum of action in plants; for example, they protect against pathogen attack, act as attractants for pollinators, and have been used as colorants, as scents, and for