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  • 标题:From By-Product to the Food Chain: Melon (Cucumis melo L.) Seeds as Potential Source for Oils
  • 本地全文:下载
  • 作者:Adrián Rabadán ; M. Antónia Nunes ; Silvia M. F. Bessada
  • 期刊名称:Foods
  • 电子版ISSN:2304-8158
  • 出版年度:2020
  • 卷号:9
  • 期号:10
  • 页码:1341-1351
  • DOI:10.3390/foods9101341
  • 出版社:MDPI Publishing
  • 摘要:Fruit-processing industries annually discard large volumes of fruit by-products. Thousands of tons of melon seeds could be recovered through the year from melon production. These seeds are an excellent source of vegetable oil with significant health-promoting properties due to their unsaturated fatty acid profile and high content of specific bioactive compounds. However, little information exists about the influence of melon cultivars and oil-extraction methods on oil characteristics. In this study, oils from nine different melon cultivars were evaluated. Additionally, two oil-extraction methods (screw and hydraulic press) were studied. Results showed that melon seeds may be used as a novel source of healthy oils. Higher-quality oils were obtained with the hydraulic press; however, low yields reduced industrial interest in this method. Oils extracted from the different cultivars showed high variability in the content of linoleic (51–69%) and oleic (15–34%) acids. Regarding vitamin E, γ-tocopherol was the main isoform found in melon-seed oils (99.81–456.73 mg/kg), followed by α- and δ-tocopherols. Significant concentrations of tocotrienols (α, β, and γ) were also found. Although all cultivars showed positive attributes, principal-component analysis (PCA) showed that Honey Dew and Blanco de Ribatejo could be specifically considered as a potential source of polyunsaturated oils with high concentrations of vitamin E.
  • 关键词:melon-seed oil; fruit waste; tocopherols; tocotrienols; unsaturated fatty acids; screw press melon-seed oil ; fruit waste ; tocopherols ; tocotrienols ; unsaturated fatty acids ; screw press
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