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Konstantinos G. Batziakas, Shehbaz Singh, Kanwal Ayub, Qing Kang, Jeffrey K. Brecht, Cary L. Rivard, and Eleni D. Pliakoni

, and vitamin C content. On the days of the physical quality analyses, spinach leaves were immediately frozen using liquid nitrogen and thereafter stored at −20 °C for the nutritional quality analyses. The frozen spinach samples were freeze

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Kui Lin, Zhi Huang, and Yong Xu

solution (0.1 g·L −1 ). After standing for 2 min, the soluble protein content was determined at a wavelength of 595 nm. Determination of vitamin C. The vitamin C content of lettuce was measured using a xylene extraction colorimetric method ( Wang, 2006

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Michele R. Warmund

vitamin C, but no cholesterol or gluten ( University of Missouri, 2008 ). Unlike other nuts, chestnuts are low in fat with 2 g total fat per 84-g serving. Chestnut can be dried and ground into flour as an alternative to wheat, barley, and rye flour for

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Fengyun Zhao, Yu Jiang, Xiufeng He, Huaifeng Liu, and Kun Yu

NaOH titration, the vitamin C content was determined by 2,6-dichlorophenol indophenol titration, and the total phenol content was determined by the Folin-Ciocalteus method. The contents of total sugar, fructose, sucrose, and glucose were measured as

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Xiaofeng Yang, Lianzhu Chen, Ming Cao, Xuebin Zhang, and Shaopeng Li

, fruit weight, yield, vitamin C, soluble sugar, and organic acid content of fruit of tomato ( Belay et al., 2002 ; Chen et al., 2004 ; Ju et al., 2004 ; Wang et al., 2007 ). Furthermore, increasing the supply level of potassium could promote the

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Xiaofeng Yang, Gang Li, Weihong Luo, Lili Chen, Shaopeng Li, Ming Cao, and Xuebin Zhang

. Fig. 8. Relationship between soluble sugar content (SU), soluble protein content (PR), vitamin C content (VC) and soluble solids content (SO) and the accumulated photothermal index since planting date (PTI sum ) under different nitrogen supply

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Xuelian Jiang, Yueling Zhao, Ling Tong, Rui Wang, and Sheng Zhao

Tomatoes are important in human nutrition because they are a good source of antioxidants, minerals, vitamin C (VC), and organic acids ( Erba et al., 2013 ; Toor et al., 2006 ). High tomato consumption reduces the risk of certain diseases ( Al

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Mack Moyo, Manoj G. Kulkarni, Jeffrey F. Finnie, and Johannes Van Staden

uses ( Eloff, 2001 ), the importance of S. birrea is underpinned by its diverse characteristics such as high levels of vitamin C and protein, quality stable oil, and the novel flavor of its fruit. The vitamin C content of S. birrea fruit juice is

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Carl J. Rosen and Deborah L. Allan

) concentrations, higher vitamin C concentrations, higher phytonutrient content, and better taste. Each of these is discussed briefly subsequently in relation to nutrient source. In general, tissue dry matter content was reported to be higher in organically grown

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H.F. Abouziena, O.M. Hafez, I.M. El-Metwally, S.D. Sharma, and M. Singh

physical characters (fruit length, fruit diameter, and fruit length/diameter ratio). Chemical characteristics of fruit juice, i.e., total soluble solids, total acidity, ascorbic acid, and vitamin C were analyzed as described by the Association of Official