摘要
考察了经不同加热条件处理的菜籽粕蛋白质溶解度(PS)、中性洗涤纤维(NDF)含量以及体外消化率(PD IV)3项品质指标变化规律,同时建立了PS、NDF含量与PD IV之间的回归预测模型。结果表明:①100℃对PS及NDF含量没有影响,2 h内的热处理PD IV逐渐升高;140℃下处理5 h,PS、NDF含量均降到标准以下,即菜籽粕品质遭到破坏;160℃处理1 h就会对菜籽粕品质产生破坏性作用。②温度、时间均对3项指标产生影响,但温度的影响程度要远大于时间。③菜籽粕的PS、NDF含量与其PD IV之间具有很强的相关性。
The changes of protein solubility （PS） , contents of neutral detergent fiber（NDF） and protein digestibility in vitro （PDIV） of rapeseed meal treated by heat were studied, and regression prediction models were established between PS , NDF and PDIV. The results showed： （1）The temperature 100℃ had not effect on PS and contents of NDF, but PDIV gradually increased with heat treatment in 2 h; PS and contents of NDF fell below the standards when samples were processed for 5 h at 140℃, which indicated that the quality o（ rapeseed meal was broken; destructive effect would be produced when the rapeseed meal was treated for 1 h at 160℃. （2）Temperature and time affected the three indicators, but the impact of temperature for quality was higher than that of time. （3）There were strong correlations between PS, NDF and PDIV.
出处
《中国油脂》
CAS
CSCD
北大核心
2009年第11期20-23,共4页
China Oils and Fats
基金
国家"十一五"科技支撑计划课题"农副产品饲料转化和高效利用技术研究"(2006BAD12B04)
