中国油脂
中國油脂
중국유지
CHINA OILS AND FATS
2014年
11期
8-11
,共4页
方冰%魏翠平%王瑛瑶%刘京%段章群%栾霞
方冰%魏翠平%王瑛瑤%劉京%段章群%欒霞
방빙%위취평%왕영요%류경%단장군%란하
精炼%大豆油%生育酚%甾醇%反式脂肪酸%聚合甘油三酯%缩水甘油酯
精煉%大豆油%生育酚%甾醇%反式脂肪痠%聚閤甘油三酯%縮水甘油酯
정련%대두유%생육분%치순%반식지방산%취합감유삼지%축수감유지
refining%soybean oil%tocopherol%sterol%trans fatty acids%polyglycerol triglycerides%glycidyl ester
植物油的精炼过程在除去不利于油脂稳定性的游离脂肪酸、过氧化物和磷脂及其他影响食用安全和油脂品质的物质同时,也造成油脂中微量营养物质的损失,以及一些新的有害物质的生成。研究了国内5个厂家的大豆油在精炼过程中微量物质的含量变化。结果发现,精炼后大豆油中生育酚及甾醇含量显著降低,分别由26.0~37.4 mg/100 g、402.75~841.92 mg/kg降为15.3~31.3 mg/100 g、291.90~372.50 mg/kg,同时反式脂肪酸、聚合甘油三酯、缩水甘油酯含量分别提高到0.23%~1.85%、0.220%~0.738%、0.40%~2.94%。对精炼各工序中微量物质的含量进行显著性分析发现,除甾醇主要是在碱炼工序损失外,生育酚、反式脂肪酸、聚合甘油三酯及缩水甘油酯变化最显著均在脱臭工序。同时还考察了不同厂家各工序段的工艺参数,以期阐明大豆油精炼过程中微量物质的变化规律,为植物油适度精炼工艺的改进提供依据。
植物油的精煉過程在除去不利于油脂穩定性的遊離脂肪痠、過氧化物和燐脂及其他影響食用安全和油脂品質的物質同時,也造成油脂中微量營養物質的損失,以及一些新的有害物質的生成。研究瞭國內5箇廠傢的大豆油在精煉過程中微量物質的含量變化。結果髮現,精煉後大豆油中生育酚及甾醇含量顯著降低,分彆由26.0~37.4 mg/100 g、402.75~841.92 mg/kg降為15.3~31.3 mg/100 g、291.90~372.50 mg/kg,同時反式脂肪痠、聚閤甘油三酯、縮水甘油酯含量分彆提高到0.23%~1.85%、0.220%~0.738%、0.40%~2.94%。對精煉各工序中微量物質的含量進行顯著性分析髮現,除甾醇主要是在堿煉工序損失外,生育酚、反式脂肪痠、聚閤甘油三酯及縮水甘油酯變化最顯著均在脫臭工序。同時還攷察瞭不同廠傢各工序段的工藝參數,以期闡明大豆油精煉過程中微量物質的變化規律,為植物油適度精煉工藝的改進提供依據。
식물유적정련과정재제거불리우유지은정성적유리지방산、과양화물화린지급기타영향식용안전화유지품질적물질동시,야조성유지중미량영양물질적손실,이급일사신적유해물질적생성。연구료국내5개엄가적대두유재정련과정중미량물질적함량변화。결과발현,정련후대두유중생육분급치순함량현저강저,분별유26.0~37.4 mg/100 g、402.75~841.92 mg/kg강위15.3~31.3 mg/100 g、291.90~372.50 mg/kg,동시반식지방산、취합감유삼지、축수감유지함량분별제고도0.23%~1.85%、0.220%~0.738%、0.40%~2.94%。대정련각공서중미량물질적함량진행현저성분석발현,제치순주요시재감련공서손실외,생육분、반식지방산、취합감유삼지급축수감유지변화최현저균재탈취공서。동시환고찰료불동엄가각공서단적공예삼수,이기천명대두유정련과정중미량물질적변화규률,위식물유괄도정련공예적개진제공의거。
Oil refining not only removes the unstable compounds in oil such as free fatty acids,peroxide and phospholipid those affect the food safety and oil quality,but also leads to the loss of trace nutrients and generation of harmful components. The contents changes of trace substances of soybean oil from do-mestic five manufacturers in the process of refining were measured. The results showed that the contents of tocopherol and sterol were significantly decreased after refining,decreasing from 26. 0-37. 4 mg/100 g and 402. 75 -841. 92 mg/kg to 15. 3 -31. 3 mg/100 g and 291. 90 -372. 50 mg/kg, respectively. Meanwhile, the contents of trans fatty acids, polyglycerol triglycerides and glycidyl ester increased, reaching 0. 23% -1. 85%,0. 220% -0. 738% and 0. 40% -2. 94%, respectively. The significant change of sterol occurred during deacidification while the contents of other minor components significantly changed in the deodorization step. Furthermore,the process parameters of each process section of different manufacturers were investigated,and the variation law of trace substances in soybean oil during refining was elaborated, so as to provide references for the improvement of the moderate refining process of plant oil.
