摘要
采集了DHA粉末油脂、ARA粉末油脂和ALA粉末油脂样本110个,样本涵盖了新鲜、临近货架期、超过货架期的样品,测定其过氧化值、茴香胺值、全氧化值、丙醛和正己醛含量,并将丙醛+正己醛含量与过氧化值、茴香胺值、全氧化值进行了相关性分析。Pearson相关性分析表明,丙醛+正己醛含量与过氧化值、茴香胺值、全氧化值在P<0.01水平呈极显著相关,相关性系数分别为0.663、0.869和0.846;非线性拟合结果表明,丙醛+正己醛含量与过氧化值、茴香胺值、全氧化值回归方程的相关系数分别为0.726 4、0.989 0和0.978 4;测定DHA/ARA粉末油脂的挥发性丙醛+正己醛含量,将其作为特征指标可以简便、准确地表征粉末油脂的氧化情况,尤其是后期氧化情况。
110 fresh, near shelf life and outdated DHA, ARA and ALA oil powder samples were collect- ed. The peroxide values（ POVs）, p -anisidine values（ PAVs）, total oxidation values, propanal and hex- anal contents were detected. And the correlation analysis was used to evaluate the relationship between the propanal ＋ hexanal content and the POVs, the PAVs, and the total oxidation values. Pearson correla- tion analysis showed that the correlation was statistically and extremely significant（ P 〈 0.01 ）. And the correlation coefficients between the propanal ＋ hexanal content and the POVs, the PAVs, the total oxida- tion values were 0.663,0. 869 and 0. 846, respectively. Nonlinear fitting results showed that the changes of propanal ＋ hexanal content with the POVs, the PAVs and the total oxidation were simulated, and the corresponding correlation coefficients were 0. 726 4, 0. 989 0 and 0. 978 4. It was feasible and convenient to evaluate the oxidation level of oil powder by detecting the propanal ＋ hexanal content, especially in the later periold of oxidation.
作者
王勇
黄昭先
李晓龙
黄健花
王兴国
金青哲
WANG Yong;HUANG Zhaoxian;LI Xiaolong;HUANG Jianhua;WANG Xingguo;JIN Qingzhe(COFCO Eastoeean Oils ＆ Grains Industries（Zhangjiagang）Co,Ltd,Zhangjiagang 215634,Jiangsu,China;COFCO Nutrition ＆ Health Research Institute,Beijing 102209,China;Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province,State Key Laboratory of Food Science and Technology,School of Food Science and Technology,Jiangnan University,Wuxi 214122,Jiangsu,China)
出处
《中国油脂》
CAS
CSCD
北大核心
2018年第8期29-31,共3页
China Oils and Fats
