Analysis of Major Nutrient Compositions in Kernel of Jizhaomian Walnut
This study was carried out to analyze the major nutrients composition of Jizhaomian walnut from three different regions in Shandong.The results showed that the average content of protein, fat, and soluble sugar were 171.9, 628.7, and 48.1 mg/g, respectively; and the coefficients of variation (CV) of them were 8.8, 4.6, and 17.6%, respectively.Significant correlations were found in content of protein, fat, and soluble sugar among individual samples (P≤0.01).Seventeen amino acids including seven essential amino acids were determined in the walnut kernel.The average total content of essential acids was 54.9 mg/g which was 29.2% of the total amino acids (188.3 mg/g).The first two highest values were found in glutamate (37.2 mg/g) and arginine (30.3 mg/g).Five major saturated fatty acids including linoleic acid (69.5%), oleic acid (11.3%), α-linolenic acid (9.9%), palmitic acid (5.9%) and stearic acid (3.1%) were determined in the kernel oil of Jizhaomian walnut.The relative content of unsaturated fatty acids was 90.6%, with a small CV (0.8%).During the seven main mineral elements, phosphorus (P) had the highest content (4.7 mg/g), the content of potassium (K) and magnesium (Mg) was 3.0 and 2.3 mg/g, respectively.The other four mineral elements were all no more than 1.0 mg/g.
walnut Jizhaomian cultivar walnut kernel nutrient compositions
L.Q.Hou D.C.Zhao C.M.Han Y.Shi B.H.Liu
Shandong Academy of Forestry,Jinan,Shandong 250014,China College of Life Science,Shandong Normal University,Jinan,Shandong 250014,China
国际会议
The 7th International Walnut Symposium(第七届世界核桃大会)
山西汾阳
英文
69-74
2013-07-20(万方平台首次上网日期,不代表论文的发表时间)