Lycopene content differs among red‐fleshed watermelon cultivars

Perkins-Veazie, P.; Collins, John D.; Pair, S. D.; Roberts, W.

doi:10.1002/jsfa.880

Cited by 224 publications

(151 citation statements)

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“…In the present study, lycopene ranged between 43.6 to 78.5 g/g of tissue. These values are consistent with those reported by Perkins-Veazie et al [32], in which watermelon cultivars can have a wide range of values for lycopene content ranging from a low of <50 g/g to a very high >90 g/g of tissue.…”

Section: Discussionsupporting

confidence: 93%

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The Influence of Rootstock Selection on Fruit Quality Attributes of Watermelon

Bruton¹,

Fish²,

Roberts³

et al. 2009

TOFSJ

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Grafting watermelon (Citrullus lanatus) to control Fusarium wilt has been practiced in Europe, the Middle East, and the Far East for decades. Until recently, grafting watermelon has not been practiced in the United States due to labor costs and land availability. There is some disagreement in the literature as to the effects that grafting has on watermelon fruit quality. This study was designed to determine the effects of grafted watermelon on fruit firmness, lycopene content, and total soluble solids (TSS) using five different rootstocks. When using Cucurbita ficifolia or Cucurbita maxima x Cucurbita moschata hybrid as the rootstock, watermelon fruit consistently had higher fruit firmness values. Other C. maxima x C. moschata hybrids or Lagenaria siceraria rootstocks generally produced lower or more varied fruit firmness values. Grafting increased fruit firmness by as much as 25% in some cases, but field and year effects were observed. In addition, grafting had no effect on lycopene content or TSS.Furthermore, no off-flavors were detected in fruit from grafted plants, but there was a 5-to 7 day delay in fruit maturity compared to their non-grafted counterpart. Although environment can have a major influence on fruit quality attributes, rootstock selection may be equally important in achieving the desired outcome.Keywords: Citrullus lanatus, Cucurbita spp., Lagenaria sp., grafting, lycopene, fruit firmness, total soluble solids.Mention of a trademark, proprietary product, or vendor does not constitute a guarantee or warranty of the product by the USDA and does not imply its approval to the exclusion of other products of vendors that may also be suitable.

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Section: Discussionsupporting

confidence: 93%

“…In contrast to tomato lycopene [30], watermelon lycopene does not require thermal processing to increase its bioavailability in humans [31]. Depending on the cultivar and growing conditions, lycopene can vary from 34 to 112 g/g fresh-weight [32]. Thus, red-fleshed watermelon is a rich source of readily bioavailable lycopene.…”

Section: Introductionmentioning

confidence: 99%

The Influence of Rootstock Selection on Fruit Quality Attributes of Watermelon

Bruton¹,

Fish²,

Roberts³

et al. 2009

TOFSJ

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“…Lycopene contributed 84%-97% of total carotenoids and ranged from 35 to 76 µg g -1 in those cultivars. In watermelon germplasm, lycopene varies from 36 to 120 µg g -1 of fresh weight (Perkins-Veazie et al 2001;Leskovar et al 2004;. reported cis-lycopene was 2%-18% of the total lycopene and the remainder was all-trans-lycopene in red-fleshed seeded diploid watermelon cultivars.…”

Section: Discussionmentioning

confidence: 99%

Phytochemical characteristics of grafted watermelon on different bottle gourds (Lagenaria siceraria) collected from Mediterranean region of Turkey

Çandır¹

2013

Turk J Agric For

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IntroductionGrafting is widely used in watermelon production to control soil-borne diseases such as Fusarium wilt (Yetisir and Sari 2003;Davis et al. 2008), to increase yield (Lee 1994;Oda 1995;Lee and Oda 2003), and to promote the mineral nutrition uptake (Pulgar et al. 2000), but the objectives of grafting have increased significantly over the years. For instance, grafting has been used to improve resistance against low (Bulder et al. 1990) and high (Rivero et al. 2003) temperatures, to improve resistance against iron chlorosis in calcareous soils (Romero et al. 1997), to improve the salinity tolerance of plants (Yetisir and Uygur 2010), to enhance nutrient absorption (Ruiz et al. 1997), and to improve water use (Cohen and Naor 2002). Bottle gourds have also been used routinely as a source of rootstock for watermelons and other cucurbit crops in some Asian and European countries (Lee and Oda 2003). Lagenaria siceraria is one of the gourd species used as rootstock for watermelon and it shows a high compatibility rate with watermelon (Lee 1994;Oda 1995;Yetisir and Sari 2003). Turkey has a rich genetic diversity of L. siceraria. In a previous study, 210 L. siceraria genotypes from ecologically different regions of Turkey were collected and evaluated for rootstock potential, and it was found that Turkish L. siceraria germplasm has powerful rootstock potential for watermelon against Fusarium wilt and is a good resource for rootstock breeding programs (Yetişir et al. 2007). We previously demonstrated that grafted watermelon plants on bottle gourd rootstocks had an increase in total yield and plant growth parameters as compared to the ungrafted control plants (Karaca et al. 2012). These rootstocks with vigorous root systems also showed superior tolerance to serious soil-borne diseases such as those caused by Fusarium (Yetışır et al. 2003). The rootstocks tested in this study also produced larger fruit with a thicker rind and darker fruit flesh color than the control plants ( Karaca et al. 2012).Watermelon quality is greatly affected by grafting (Yetisir and Sari 2003; Yetışır et al. 2003;Davis and Perkins-Veazie 2005). There are many conflicting reports on changes in fruit quality due to grafting. The differences in reported results may be due in part to different production environments, type of rootstock, interactions between specific rootstocks and scions, and harvest date (Davis et al. 2008). In some studies, grafted watermelon fruits had lower (

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“…Watermelon juice contains small amounts of phenolics as well as low vitamin C content compared with other fruits (Gil et al 2006). On the other hand, watermelon juice is a rich natural source of lycopene, a compound responsible for its red colour (Perkins-Veazie et al 2001). Intake of lycopene containing-products has been associated with a reduced incidence of coronary heart disease and some types of cancer (Fraser and Bramley 2004;Giovannucci 2002).…”

Section: Introductionmentioning

confidence: 99%

Process optimization for enzyme aided clarification of watermelon juice

et al. 2012

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Watermelon juice was exposed to the enzyme masazyme at varying enzyme concentrations (0.01-0.1 % w/w) and different time (20-120 min) and temperature (30-50°C) combinations. The effects of the treatments on selected responses (juice recovery, total dissolved solids (TDS), viscosity, turbidity, cloud stability and L value) were determined employing a second order Box Behnken Design in combination with Response Surface Methodology. Enzymatic treatment effectively degraded polysaccharides, resulting in reduced viscosity, turbidity and absorbance value and increased juice recovery, total dissolved solids and lightness. R 2 value for all models for the dependent variables were greater than 90 %. The maximum juice recovery (86.27 %), TDS (8.7°Brix) and L value (17.57) while minimum viscosity (0.0020 Pa.s.), turbidity (39.37 NTU) and cloud stability (0.033 abs) were obtained when enzyme treatment was set up with 0.09 % w/w enzyme concentration at 46.90°C and 117.45 min.

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Lycopene content differs among red‐fleshed watermelon cultivars

Cited by 224 publications

References 18 publications

The Influence of Rootstock Selection on Fruit Quality Attributes of Watermelon

The Influence of Rootstock Selection on Fruit Quality Attributes of Watermelon

Phytochemical characteristics of grafted watermelon on different bottle gourds (Lagenaria siceraria) collected from Mediterranean region of Turkey

Process optimization for enzyme aided clarification of watermelon juice

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