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Lanqing Wang, Yinfeng Li, Dehai Liu, Chaohui Zhang, Yuancheng Qi, Yuqian Gao, Jinwen Shen, and Liyou Qiu

international units (IU) per gram dry weight of spawn (1 IU = quantity of enzyme required to produce 1 μmol of glucose per minute under the assay conditions). The isozyme patterns of esterase, peroxidase, and polyphenol oxidase of immobilized spawn and solid

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Zoltán Pék, Lajos Helyes, and Andrea Lugasi

hydrolysis with HCl at 65 °C during 5 min by the classical Schoorl method ( COMMISSION DIRECTIVE 79/796/EEC, 1979 ). Total polyphenols were analyzed with the Folin-Denis method according to the AOAC official protocol 952.03 ( AOAC, 1990 ). Lycopene was

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Ana Morales-Sillero, R. Jiménez, J.E. Fernández, A. Troncoso, and G. Beltrán

al., 1995 ; Pastor et al., 2005 ). Oil content does not always increase with irrigation ( Marsilio et al., 2006 ; Patumi et al., 2002 ), although oil quality is usually modified. In particular, polyphenol content, K 225 (bitterness), and oxidative

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Fei Xiong, Jieren Liao, Yuanchun Ma, Yuhua Wang, Wanping Fang, and Xujun Zhu

emission spectrometer (PerkinElmer, Waltham, MA). Determination of the tea quality indicators. The compositions of tea polyphenols and caffeine in leaves were determined by high-performance liquid chromatography (SPD-20A; SHIMADZU, Kyoto, Japan) analysis

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Abu Shamim Mohammad Nahiyan and Yoh-ichi Matsubara

) (polyphenol), and Roe et al. (1948) (ascorbic acid), respectively. Statistical analysis. Mean values were separated by t test for dry weight (10 weeks after AMF inoculation), RFCSL, and antioxidative abilities at P ≤ 0.05. Dry weight (8 weeks after Foa

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Zhengke Zhang, Yu Zhang, Donald J. Huber, Jingping Rao, Yunjing Sun, and Shanshan Li

cellular oxidative metabolism involving oxidative enzymes, including peroxidase (POD) and polyphenol oxidase (PPO) ( Hershkovitz et al., 2005 ). Oxidative stress could also be promoted by the presence of excess reactive oxygen species (ROS) that induce

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Weiguang Yi and Hazel Y. Wetzstein

8000 g for 15 min and supernatants were collected. Tissues were re-extracted for 1 h in the same solvent for two more times. The extracts were combined and then further passed through 0.2-μm nylon filters. Total polyphenol measurement. TPP was measured

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En-chao Liu, Li-fang Niu, Yang Yi, Li-mei Wang, You-wei Ai, Yun Zhao, Hong-xun Wang, and Ting Min

less than that of the AP group, which indicates that the MAP condition could inhibit the activity of the enzymes effectively, thereby inhibiting enzymatic browning ( Qian et al., 2016 ). Fig. 4. Phenylalanine ammonia lyase (PAL), polyphenol oxidase (PPO

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Masahumi Johkan, Kazuhiro Shoji, Fumiyuki Goto, Shin-nosuke Hashida, and Toshihiro Yoshihara

, polyphenols, and antioxidant activity of lettuce seedlings treated with different light spectra were also determined. Materials and Methods Plant growth. Seeds of red leaf lettuce ( Lactuca sativa L. cv. Banchu Red Fire; Takii Seed Co., Kyoto, Japan) were

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A. Morales-Sillero, R. Jiménez, J.E. Fernández, A. Troncoso, and L. Rejano

. The nutritional and biological value of the fruit depends on the chemical composition of the pulp, with water and oil as the main components, and reducing sugars, polysaccharides, polyphenols, and minerals present in lower amounts. Together with their