中国油脂
中國油脂
중국유지
CHINA OILS AND FATS
2015年
8期
1-4,5
,共5页
李志晓%金青哲%叶小飞%王照飞%夏小明%王兴国
李誌曉%金青哲%葉小飛%王照飛%夏小明%王興國
리지효%금청철%협소비%왕조비%하소명%왕흥국
油茶籽油%精炼%活性物质%抗氧化性
油茶籽油%精煉%活性物質%抗氧化性
유다자유%정련%활성물질%항양화성
oil-tea camellia see d oil%refining%bioactive constituent%antioxidant activity
研究了精炼工艺对油茶籽油活性成分和抗氧化性的影响。结果表明:经过精炼,油茶籽油中的活性成分不断降低,碱炼后,多酚损失率达到了80.50%;脱色和脱臭后,生育酚损失率分别达到了13.05%和20.69%,甾醇的损失率分别达到了12.85%和13.09%;脱色后,角鲨烯损失率达到了24.99%。抗氧化性方面,油茶籽油对3种自由基的清除能力有一定差异,强弱顺序为ORAC自由基>ABTS自由基>DPPH自由基。
研究瞭精煉工藝對油茶籽油活性成分和抗氧化性的影響。結果錶明:經過精煉,油茶籽油中的活性成分不斷降低,堿煉後,多酚損失率達到瞭80.50%;脫色和脫臭後,生育酚損失率分彆達到瞭13.05%和20.69%,甾醇的損失率分彆達到瞭12.85%和13.09%;脫色後,角鯊烯損失率達到瞭24.99%。抗氧化性方麵,油茶籽油對3種自由基的清除能力有一定差異,彊弱順序為ORAC自由基>ABTS自由基>DPPH自由基。
연구료정련공예대유다자유활성성분화항양화성적영향。결과표명:경과정련,유다자유중적활성성분불단강저,감련후,다분손실솔체도료80.50%;탈색화탈취후,생육분손실솔분별체도료13.05%화20.69%,치순적손실솔분별체도료12.85%화13.09%;탈색후,각사희손실솔체도료24.99%。항양화성방면,유다자유대3충자유기적청제능력유일정차이,강약순서위ORAC자유기>ABTS자유기>DPPH자유기。
The effects of refining process on the bioactive constituents and antioxidant activity of oil-tea camellia seed oil were studied. The results showed that the contents of bioactive constituents in oil-tea camellia seed oil reduced continuously during refining. After alkali refining,the loss rate of polyphenols reached 80. 50%;after bleaching and deodorization,the loss rates of tocopherol reached 13. 05% and 20. 69% respectively,and the loss rates of sterols reached 12. 85% and 13. 09% respectively;the loss rate of squalene reached 24. 99% after bleaching. In terms of antioxidant activity,there were some differ-ences in the scavenging capacities of oil-tea camellia seed oil on three free radicals,and the scavenging rate on ORAC free radical was the highest,followed by ABTS free radical and DPPH free radical.