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  1. Home
  2. College of Nutrition / 營養學院
  3. School of Nutrition and Health Sciences / 保健營養學系
  4. 家庭油炸烹調的過程之油品酸價分析探討
 
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家庭油炸烹調的過程之油品酸價分析探討

Type
other
Date Issued
2006-06
Author(s)
王斌穎 李昆霙
張竣銘
許睿涵
何式毅
張詩宜
鄭富元
翁沛辰
楊淑惠  
Subjects
保健營養學系
海報
Abstract
本實驗為仿家庭油炸烹調的過程中,對於沙拉油品質之變化。選用薯條與雞塊兩種不同食材,第一部分實驗將薯條與雞塊各取200g為一份,共計薯條組與雞塊組各有十等份食材。每組各別以四杯沙拉油油炸並且控制油溫於180℃,每炸一份食材取2-3T炸油,共進行相同步驟十次取十次樣品油和新鮮油。第二部份實驗將樣品油精秤5g,以乙醚及酒精等比例溶液50ml混合均勻,酚酞為滴定指示劑,以0.1N KOH/EtOH溶液滴定至淡粉紅色,記錄滴定量並算出其油脂之酸價。一般食用油之酸價應小於0.2,比較兩組之數據能發現:雞塊組油炸至第六次後酸價快速升高超過0.2,第七次之油脂酸價即超過0.3。薯條組在第十次之酸價才超過0.23。;雞塊組的油品劣化較比薯條組快速,由此結果可推論:一般家庭炸油在反覆炸到第四次前尚還可以回收再利用。
URI
https://203.71.86.71/handle/123456789/38369
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