Stevenson David G, Eller Fred J, Wang Liping, Jane Jay-Lin, Wang Tong, Inglett George E
Cereal Products and Food Science Research Unit, National Center for Agricultural Utilization Research, Agricultural Research Service, U.S. Department of Agriculture, Peoria, Illinois 61604, USA.
J Agric Food Chem. 2007 May 16;55(10):4005-13. doi: 10.1021/jf0706979. Epub 2007 Apr 18.
Twelve pumpkin cultivars (Cucurbita maxima D.), cultivated in Iowa, were studied for their seed oil content, fatty acid composition, and tocopherol content. Oil content ranged from 10.9 to 30.9%. Total unsaturated fatty acid content ranged from 73.1 to 80.5%. The predominant fatty acids present were linoleic, oleic, palmitic, and stearic. Significant differences were observed among the cultivars for stearic, oleic, linoleic, and gadoleic acid content of oil. Low linolenic acid levels were observed (<1%). The tocopherol content of the oils ranged from 27.1 to 75.1 microg/g of oil for alpha-tocopherol, from 74.9 to 492.8 microg/g for gamma-tocopherol, and from 35.3 to 1109.7 microg/g for delta-tocopherol. The study showed potential for pumpkin seed oil from all 12 cultivars to have high oxidative stability that would be suitable for food and industrial applications, as well as high unsaturation and tocopherol content that could potentially improve the nutrition of human diets.
对在爱荷华州种植的12个南瓜品种（南瓜属 maxima D.）的种子油含量、脂肪酸组成和生育酚含量进行了研究。油含量在10.9%至30.9%之间。总不饱和脂肪酸含量在73.1%至80.5%之间。主要的脂肪酸为亚油酸、油酸、棕榈酸和硬脂酸。各品种油中硬脂酸、油酸、亚油酸和二十碳烯酸的含量存在显著差异。观察到亚麻酸水平较低（<1%）。油中的生育酚含量，α-生育酚为27.1至75.1微克/克油，γ-生育酚为74.9至492.8微克/克，δ-生育酚为35.3至1109.7微克/克。该研究表明，所有12个品种的南瓜籽油都具有高氧化稳定性，适合食品和工业应用，同时具有高不饱和性和生育酚含量，可能会改善人类饮食的营养。
