美藤果及其果油品质

为了研究美藤果及其果油的营养品质和安全品质，对美藤果及其果油中主要营养成分和风险成分（塑化 剂及多环芳烃）进行检测分析，同时对美藤果油的主要质量指标和特征指标进行了检测分析。结果表明，不同产 地的8 个美藤果样品中邻苯二甲酸酯类塑化剂含量为0.543～1.695 mg/kg、多环芳烃含量为111.65～282.21 μg/kg； 2 个美藤果样品的粗脂肪质量分数分别为44.70%和48.00%，粗蛋白质量分数分别为31.50%和29.46%；4 个美藤 果油样品中甾醇、VE含量分别为190.16～225.51 mg/100 g和177.99～208.14 mg/100 g；10 个美藤果油样品中塑 化剂含量为0.94～130.97 mg/kg、多环芳烃含量为207.92～1 139.47 μg/kg；4 个美藤果油样品酸价、过氧化值、 碘值、皂化值、磷脂质量分数分别为0.45～2.70 mg KOH/100 g、0.57～3.05 mmol/kg、189.98～193.39 g/100 g、 189.71～195.10 mg KOH/g及0.00%～0.10%；美藤果油主要由6 种脂肪酸组成，其中亚麻酸质量分数最高，占总脂 肪酸的44.28%～46.45%，亚油酸质量分数次之，占37.88%～40.19%，不饱和脂肪酸质量分数高达92%以上。总的 来看，美藤果油是一种优质的食用油，但不同的美藤果油样品中塑化剂及多环芳烃含量情况差异很大，个别油样中 塑化剂含量明显超出国标限量，因而油脂加工厂应加强对美藤果油生产中塑化剂的风险监控。

Quality Evaluation of Sacha Inchi Seeds and Oil

To explore the nutritional quality and safety of sacha inchi seeds and oil, the major micronutrients, phthalates and polycyclic aromatic hydrocarbons in both samples were analyzed, and physicochemical properties and fatty acid composition of the oil were determined. The results showed that the contents of plasticizers and polycyclic aromatic hydrocarbons in sacha inchi seeds from 8 different geographical areas were 0.543–1.695 mg/kg and 111.65–282.21 μg/kg, respectively; the contents of crude fat in sacha inchi seeds from Puwen town and Lvchun county, Yunnan province were 44.70% and 48.00%, and the contents of crude protein were 31.50% and 29.46%, respectively. The concentrations of phytosterol and vitamin E in sacha inchi oil were in the range of 190.16–225.51 and 177.99–208.14 mg/100 g, and the concentrations of plasticizers and polycyclic aromatic hydrocarbons were 0.94–130.97 mg/kg and 207.92–1 139.47 μg/kg, respectively. Results of the physicochemical properties showed that acid value, peroxide value, iodine value, saponification value and phospholipids were 0.45–2.70 mg KOH/100 g, 0.57–3.05 mmol/kg, 189.98–193.39 g/100 g, 189.71–195.10 mg KOH/g and 0.00%–0.10%, respectively. Six major fatty acids were detected in sacha inchi oil, with linolenic acid being the most abundant one (44.28%–46.45%) followed by linoleic acid (37.88%–40.19%), and unsaturated fatty acids accounted for more than 92% of the total fatty acids. Overall, sacha inchi oil had a high nutritional value and good quality, but a wide difference in the contents of polycyclic aromatic hydrocarbons and plasticizers was observed among different production batches; furthermore, plasticizer contents of only a few oil samples plasticizers greatly exceeded the national standard limit. Therefore, it is necessary for vegetable oil factories to monitor plasticizers in different production batches.