摘要
研究了充氮气调储藏对大豆油脂品质的影响.在控制氮气体积分数为98%、90%和78%的条件下,比较了水分含量和储藏温度对大豆油脂酸值和过氧化值的影响.结果表明,储藏温度是影响大豆油脂酸值最重要的因素,水分含量是影响大豆油脂过氧化值稳定性的重要因素.在相同氮气含量下,储藏温度、水分含量越高,大豆油脂酸值和过氧化值增加越多.高水分(14.9%)大豆在30℃下充氮(98%)储藏180 d后,油脂酸值较对照组低20.2%;低水分(12.2%)大豆在20℃下充氮(98%)储藏180 d后,油脂过氧化值较对照组低26.1%.因此,充氮气调储藏能在一定程度上延缓大豆油脂酸值和过氧化值的增高.
The paper studied the influences of controlled atmosphere storage with N2 on the quality of soybean oil. The effects of moisture content and storage temperature on the acid value and peroxide value of soybean oil were compared under controlled atmosphere storage with N2 concentration of 98%, 90% and 78%. The results showed that the storage temperature was the most important factor influencing the acid value of the soybean oil; and the moisture content was the most important factor influencing the peroxide value stability of the soybean oil. Under the conditions of same N2 content, higher storage temperature and higher moisture content resulted in more increase of the acid value and the peroxide value of the soybean oil. The acid value of high-moisture （ 14.9% ） soybean stored under controlled atmosphere N2（98% ） at 30℃for 180 days was smaller than that of the contrast group by 20.2%; and the peroxide value of low-moisture （ 12.2% ） soybean stored under controlled atmosphere N2 （98%） at 30 ℃for 180 days was smaller than that of the contrast group by 26.1%. Accordingly, the controlled atmosphere storage with N： could delay the increase of the acid value and peroxide value of the soybean oil to a certain extent.
出处
《河南工业大学学报（自然科学版）》
CAS
北大核心
2013年第1期91-95,102,共6页
Journal of Henan University of Technology：Natural Science Edition
基金
"十二五"国家科技支撑计划(2011BAD02B01)
关键词
大豆储藏
充氮气调
酸值
过氧化值
soybean storage
controlled atmosphere storage with N2
acid value
peroxide value
