研究阴香种子油脂的提取工艺,从中分离并鉴定了其主要成分甘油三月桂酸酯。结果表明,阴香种子油脂的最佳提取条件为:以石油醚为溶剂,在50°C,料液比1∶7,提取40 m in,提取2次,总油脂的得率为64.2%,甘油三月桂酸酯的得率为40%。探讨...研究阴香种子油脂的提取工艺,从中分离并鉴定了其主要成分甘油三月桂酸酯。结果表明,阴香种子油脂的最佳提取条件为:以石油醚为溶剂,在50°C,料液比1∶7,提取40 m in,提取2次,总油脂的得率为64.2%,甘油三月桂酸酯的得率为40%。探讨了以阴香种子中甘油三月桂酸酯为原料合成甘油单月桂酸酯的方法。展开更多
Glycerol mono laurate(GML)has been widely used as an effective antibacterial emulsifier in the food in?dustry.A total of 360 44-week-old Hy-Line brown laying hens were randomly distributed into four groups each with s...Glycerol mono laurate(GML)has been widely used as an effective antibacterial emulsifier in the food in?dustry.A total of 360 44-week-old Hy-Line brown laying hens were randomly distributed into four groups each with six replicates of 15 birds,and fed with com-soybean-meal-based diets supplemented with 0,0.15,0.30,and 0.45 g/kg GML,respectively.Our results showed that 0.15,0.30,and 0.45 g/kg GML treatments significantly decreased feed conversion ratios(FCRs)by 2.65%,7.08%,and 3.54%,respectively,and significantly increased the laying rates and average egg weights.For egg quality,GML drastically in creased albume n height and Haugh units,and enhanced yolk color.Notably,GML increased the concentrations of polyunsaturated and monounsaturated fatty acids and reduced the concentration of total saturated fatty acids in the yolk.The albumen composition was also significantly modified,with an increase of 1.02%in total protein content,and increased 8ntents of His(4.55%)and Glu(2.02%)under the 0.30 g/kg GML treatment.Additionally,GML treatments had positive effects on the lipid metabolism of laying hens,including lowering the serum triglyceride and total cholesterol levels and reducing fat deposit!on in abdominal adipose tissue.Intestinal morphology was also improved by GML treatment,with increased villus length and villus height to crypt depth ratio.Our data demonstrated that GML supplementation of laying hens could have beneficial effects on both their productivity and physiological properties,which indicates the potential application of GML as a functional feed additive and gives us a new in sight into this traditional food additive.展开更多
文摘研究阴香种子油脂的提取工艺,从中分离并鉴定了其主要成分甘油三月桂酸酯。结果表明,阴香种子油脂的最佳提取条件为:以石油醚为溶剂,在50°C,料液比1∶7,提取40 m in,提取2次,总油脂的得率为64.2%,甘油三月桂酸酯的得率为40%。探讨了以阴香种子中甘油三月桂酸酯为原料合成甘油单月桂酸酯的方法。
基金Project supported by the Technology and Achievement Transformation Project of Hangzhou,China(No.20161631E01)the Zhejiang University New Rural Development Research Institute Agricultural Technology Promotion Fund(No.2017006)+1 种基金the Zhejiang Provincial Natural Science Foundation of China(No.LY18C200006)the Basic Research Project of Education Department of Zhejiang Province(No.Y201737161),China
文摘Glycerol mono laurate(GML)has been widely used as an effective antibacterial emulsifier in the food in?dustry.A total of 360 44-week-old Hy-Line brown laying hens were randomly distributed into four groups each with six replicates of 15 birds,and fed with com-soybean-meal-based diets supplemented with 0,0.15,0.30,and 0.45 g/kg GML,respectively.Our results showed that 0.15,0.30,and 0.45 g/kg GML treatments significantly decreased feed conversion ratios(FCRs)by 2.65%,7.08%,and 3.54%,respectively,and significantly increased the laying rates and average egg weights.For egg quality,GML drastically in creased albume n height and Haugh units,and enhanced yolk color.Notably,GML increased the concentrations of polyunsaturated and monounsaturated fatty acids and reduced the concentration of total saturated fatty acids in the yolk.The albumen composition was also significantly modified,with an increase of 1.02%in total protein content,and increased 8ntents of His(4.55%)and Glu(2.02%)under the 0.30 g/kg GML treatment.Additionally,GML treatments had positive effects on the lipid metabolism of laying hens,including lowering the serum triglyceride and total cholesterol levels and reducing fat deposit!on in abdominal adipose tissue.Intestinal morphology was also improved by GML treatment,with increased villus length and villus height to crypt depth ratio.Our data demonstrated that GML supplementation of laying hens could have beneficial effects on both their productivity and physiological properties,which indicates the potential application of GML as a functional feed additive and gives us a new in sight into this traditional food additive.
