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| 驴脂组成成分及其油脂的品质指标分析 |
| Components of donkey fat and quality index of donkey oil |
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| DOI：10.12166/j.zgyz.1003-7969/2020.07.028 |
| 中文关键词: 驴脂 元素组成 营养成分 驴油 品质指标 |
| 英文关键词:donkey fat elemental composition nutrient donkey oil quality index |
| 基金项目:山东省泰山产业领军人才传统产业创新类项目（TSCY20170233） |
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| 中文摘要: |
| 研究了驴脂的元素谱库、营养成分组成，测定了驴脂提取分离产物驴油的品质指标。以电感耦合等离子体质谱技术（ICP-MS）对驴脂中37种金属元素进行扫描分析，形成样本的元素谱库，结果表明驴脂中各金属元素均未达到检出限。以多质量分析器组合式质谱仪对驴脂进行MSn级扫描，最终获得驴脂中主要成分信息，发现驴脂主要成分中包含16种氨基酸及其衍生物类、11种有机酸、46种脂质以及糖类、维生素类等多种成分。采用超声辅助溶剂提取法得到的驴油相对密度为0.908，水分含量为0.68%，酸价(KOH)为0.58 mg/g，过氧化值为0.018 g/100 g，碘值(I)为85 g/100 g。研究储存温度对驴油过氧化值的影响，结果表明驴油常温下即可储存。驴脂可作为食品、化妆品的研发原料，具有广阔的应用前景。 |
| 英文摘要: |
| The elemental library and nutrient composition of donkey fat were studied. The quality indexes of donkey oil extracted and separated from donkey fat were determined. The 37 metal elements in donkey fat were scanned and analyzed by inductively coupled plasma mass spectrometry (ICP-MS). The results showed that all the metal elements in donkey fat were not detected. The main components of donkey fat samples were scanned by multi-mass analyzer combined with mass spectrometer at MSn level. It was found that there were 16 kinds of amino acids and their derivatives, 11 kinds of organic acids and 46 kinds of lipids. In addition, there were many ingredients such as carbohydrates and vitamins. The physicochemical properties of donkey oil extracted by ultrasound-assisted solvent were determined as follows: relative density 0.908, moisture content 0.68%, acid value 0.58 mgKOH/g, peroxide value 0.018 g/100 g, iodine value 85 gI/100 g. The effect of storage temperature on peroxide value of donkey oil were studied. The results showed that donkey oil could be stored at room temperature. Donkey oil could be used as research and development materials for food and cosmetics, and had broad application prospects. |
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