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| 沙棘油特征指标的比较 |
| Comparison of characteristic index of seabuckthorn oils |
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| DOI： |
| 中文关键词: 沙棘油；特征指标；脂肪酸组成 气相色谱 |
| 英文关键词:seabuckthorn oil characteristic index fatty acid composition gas chromatography |
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| 中文摘要: |
| 采用气相色谱和化学滴定等手段，对不同产地的13个成品沙棘油及3份实验室提取的沙棘油（分籽油、全果油、果油）的酸值、过氧化值和特征指标（相对密度、折光指数、碘值、皂化值和脂肪酸组成）进行了测定，并进行比较分析。结果表明：16份沙棘油的酸值和过氧化值均符合相关标准要求；折光指数（n40）、相对密度（d2020）、碘值3个特征指标基本是按籽油、果油、全果油的顺序依次减小，皂化值则较为接近。沙棘籽油以亚油酸、亚麻酸、油酸、棕榈酸为主，不饱和脂肪酸含量为87.4%～88.1%；全果油以棕榈酸、棕榈油酸、油酸、亚油酸为主，不饱和脂肪酸含量为62.9%～70.4%；果油以亚油酸、油酸、棕榈酸为主，不饱和脂肪酸含量为81.9%～89.1%。沙棘油与3个进口橄榄油的脂肪酸组成基本相同，但在比例与含量上有很大差异。研究表明沙棘油是一种营养丰富、极具开发潜力的植物油。 |
| 英文摘要: |
| Using gas chromatography and chemical titration methods, the acid value, peroxide value and characteristic indexes (relative density, refractive index, iodine value, saponification value and fatty acid composition) of 13 refined seabuckthorn oils from different producing areas and 3 seabuckthorn oils (seed oil, whole fruit oil and fruit oil) extracted from laboratory were measured and compared. The results showed that the acid value and peroxide value of 16 seabuckthorn oils met the requirements of relevant standards. The three characteristic parameters of refractive index (n40）, relative density （d2020）, and iodine value decreased in the order of seed oil, fruit oil and whole fruit oil. The saponification value was closer.Seabuckthorn seed oil was mainly composed of linoleic acid, linolenic acid, oleic acid and palmitic acid, and its content of unsaturated fatty acids was 87.4%-881%. Whole fruit oil was mainly composed of palmitic acid, palmitoleic acid, oleic acid and linoleic acid, and its content of unsaturated fatty acids was 62.9%-70.4%. The fruit oil was mainly linoleic acid, oleic acid and palmitic acid, and the content of unsaturated fatty acids was 81.9%-89.1%.Compared with the fatty acid composition of the three imported olive oils, the fatty acid composition of seabuckthorn oil was basically the same, but the ratio and content were quite different. The research shows that seabuckthorn oil is a kind of vegetable oil with rich nutrition and great development potential. |
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