文章基本信息

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 等
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