| 刘玉兰，陈莉，胡爱鹏,等.脱臭工艺条件对葵花籽油综合品质影响的研究[J].中国油脂,2018,43(10):.[LIU Yulan，CHEN Li，HU Aipeng，etc.Effect of deodorization conditions on comprehensive quality of sunflower seed oil[J].China Oils and Fats,2018,43(10):.] |
| 脱臭工艺条件对葵花籽油综合品质影响的研究 |
| Effect of deodorization conditions on comprehensive quality of sunflower seed oil |
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| DOI： |
| 中文关键词: 葵花籽油 油脂脱臭 邻苯二甲酸酯类塑化剂（PAEs） 多环芳烃（PAHs） 维生素E（VE） 甾醇 反式脂肪酸 |
| 英文关键词:sunflower seed oil oil deodorizing phthalic acid esters(PAEs) polycyclic aromatic hydrocarbons(PAHs) vitamin E(VE) sterol trans fatty acid |
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| 中文摘要: |
| 分析对比了在220~270?℃、100 min及40~120 min、260?℃脱臭条件下，葵花籽油中邻苯二甲酸酯类塑化剂（PAEs）、多环芳烃（PAHs）、维生素E（VE）、甾醇、脂肪酸组成及酸值、过氧化值、烟点、色泽的变化，考察脱臭工艺条件对葵花籽油综合品质的影响。结果表明：随着脱臭温度升高、脱臭时间延长，葵花籽油中PAEs、PAHs各组分脱除率均逐渐升高；VE、甾醇含量逐渐降低，保留率分别由94.6%降至63.2%及94.4%降至81.6%；反式脂肪酸含量逐渐升高，由0.17%升至1.16%。综合不同脱臭条件对PAEs、PAHs、VE、甾醇、反式脂肪酸及其他质量指标的影响，基于塑化剂和多环芳烃深度脱除的脱臭条件为260?℃、80~100 min，此条件下VE保留率为73%~75%，甾醇保留率82%~85%，反式脂肪酸含量0.88%?~0.90%；保证BaP达标的适度脱臭条件为260?℃、60 min或220?℃、100 min。260?℃、60 min条件下，VE和甾醇保留率分别为79.3%和85.4%，反式脂肪酸含量069%；220?℃、100 min条件下，VE和甾醇保留率均在94%以上，反式脂肪酸含量0.17%。可根据待脱臭油风险成分的含量不同以及对脱臭成品油的限量要求不同选择相应的优化脱臭条件，采用精准的脱臭技术提升葵花籽油综合品质。 |
| 英文摘要: |
| The contents of phthalic acid esters(PAEs), polycyclic aromatic hydrocarbons (PAHs), vitamin E (VE) and sterols , and changes of fatty acid composition, acid value, peroxide value, smoke point, color of sunflower seed oil were analyzed and compared under the deodorization conditions of 220-270?℃, 100 min and 40-120 min, 260?℃ to study the effects of deodorization conditions on the comprehensive quality of sunflower seed oil. The results showed that with the deodorization temperature increasing and deodorization time prolonging, the removal rates of each PAEs and PAHs component increased gradually,the contents of VE and sterol decreased gradually with retention rates decreasing from 94.6% to 632% and 94.4% to 81.6%, and the content of trans fatty acids increased gradually from 0.17% to 116%. Synthesizing the effects of different deodorization conditions on PAEs, PAHs, VE, sterol, trans fatty acid and other quality indexes, the appropriate deodorization conditions based on PAEs and PAHs removed deeply were 260?℃, 80-100 min. Under these conditions,the retention rates of VE and sterol were 73%-75% and 82%-85%, and the content of trans fatty acids was 0.88%-0.90%. The appropriate deodorization conditions were 260?℃, 60 min or 220?℃, 100 min based on ensuring BaP content meet the national standard, and under the conditions of 260?℃, 60 min, the retention rates of VE and sterol were 79.3% and 854%, respectively, and the content of trans fatty acids was 0.69%; while the retention rates of VE and sterol were both above 94%, and the content of trans fatty acids was 0.17% under the deodorization conditions of 220?℃, 100 min. The optimal deodorization conditions could be selected according to the content of the risk ingredient of the bleaching oil and the requirement of the deodorization product oil, and the comprehensive quality of sunflower seed oil could be improved by using the precise deodorization technology. |
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