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Maria I. Andrade, Abilio Alvaro, Joana Menomussanga, Godwill S. Makunde, José Ricardo, Wolfgang J. Grüneberg, Raúl Eyzaguirre, Jan Low and Rodomiro Ortiz

It takes on average 7 to 8 years to breed a suitable sweetpotato cultivar in Africa adapted to local farmer and consumer needs. For southern Africa, the major sweetpotato breeding objectives are high storage root and vine yield, high β-carotene

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Ah-Chiou Lee, Fang-Shin Liao and Hsiao-Feng Lo

, including inner and outer leaves from the base to the tip, was cut and mixed well. Subsamples of 20 g fresh lettuce per plant were used for the determination of total dietary fiber and ascorbic acid. To analyze β-carotene as well as total flavonoid and total

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Marcia Vizzotto, Luis Cisneros-Zevallos, David H. Byrne, David W. Ramming and W.R. Okie

., 1998 ; Weinert et al., 1990 ; Werner et al., 1998 ). Orange-fleshed peaches have the carotenoids β-carotene and β-cryptoxanthin ( Tourjee et al., 1998 ). Several hydroxycinnamates such as chlorogenic acid and neochlorogenic acid, flavan 3-ols such as

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Jack E. Staub, James D. McCreight and Juan E. Zalapa

’, ‘Esteem’, and ‘Sol Dorado’, as evaluated in Hancock, WI, and El Centro, CA ( Table 1 ) ( Zalapa, 2005 ; Zalapa et al., 2006 , 2008 ). The fruit quality characteristics (exterior and interior quality, sugar content, β-carotene content) of USDA 846-1 tend

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Beiquan Mou

requiring an increase in consumption. Spinach is one of the most desirable leafy vegetables due to its high content of β-carotene (provitamin A), lutein, folate, vitamin C, calcium, iron, phosphorus, and potassium. The red color of ‘USDA Red’ comes from

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Megan J. Bowman, David K. Willis and Philipp W. Simon

-qPCR analysis, and for content of α-carotene, β-carotene, phytoene, lycopene, and lutein from HPLC (α = 0.05). All statistical analyses were performed using the R statistics program ( R Development Core Team, 2011 ). Results RT-qPCR was used to quantify

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Young-Hwan Shin, Rui Yang, Yun-Long Shi, Xu-Min Li, Qiu-Yue Fu, Jian-Liang Lu, Jian-Hui Ye, Kai-Rong Wang, Shi-Cheng Ma, Xin-Qiang Zheng and Yue-Rong Liang

use in photosynthesis and protecting chlorophylls from photodamage ( Armstrong and Hearst, 1996 ). Carotenoids are classified into two groups, i.e., the carotenes without oxygen such as β-carotene and the xanthophylls with oxygen such as neoxanthin

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Bhimanagouda S. Patil, G.K. Jayaprakasha and Amit Vikram

such as β-carotene, lutein, and zeaxanthin and their potential health benefits were well documented ( Pryor et al., 2000) . Momordicin, a triterpenoid, is reported to possess insulin-like activity ( Saxena and Vikram, 2004 ). It is noteworthy that

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M. Courtney, M. Mcharo, D. La Bonte and W. Gruneberg

) through genetic transformation ( Datta et al., 2007 ) and widely available β-carotene-rich sweetpotato germplasm. The use of this approach has been demonstrated with sweetpotato through the improved vitamin A status of children ( van Jaarsveld et al., 2005

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Zoltán Pék, Péter Szuvandzsiev, András Nemenyi, Lajos Helyes and Andrea Lugasi

Tomato ( Solanum lycopersicum L.) is one of the most important vegetable food crops of the world ( FAOSTAT, 2008 ). Year-round availability, a high rate of consumption, and significant levels of antioxidants such as ascorbic acid, β-carotene, γ