Hu Qiang, Liu Jia, Li Jun, Liu Hui, Dong Nan, Geng Yang-Yang, Lu Yang, Wang Yan
1College of Life Science, Leshan Normal University, Leshan, 614000 People's Republic of China.
Bamboo Diseases and Pests Control and Resources Development Key Laboratory of Sichuan Province, Leshan, 614000 People's Republic of China.
Food Sci Biotechnol. 2019 Aug 8;29(2):187-196. doi: 10.1007/s10068-019-00655-z. eCollection 2020 Feb.
Phenolic composition and nutritional attributes of diaphragma juglandis fructus (Djf) and walnut shells (Ws) were investigated. Phenolic acids, hydroxybenzoic acid, isoflavone, and flavone were identified in the free phenolic fractions (FPFs) of both Djf and Ws. Bound phenolic fractions were less than FPFs both in content and diversity. The soluble dietary fiber contents of Djf and Ws were 25.56 g/100 g and 9.5 g/100 g, respectively. The contents of unsaturated fatty acids (1912.28 mg/kg and 9137.56 mg/kg, respectively) were significantly higher than that of saturated fatty acid both in Djf and Ws. The content of essential amino acids in Djf (9.67 mg/g) was significantly higher than that in Ws. More than eight types of monosaccharides were detected in Djf and Ws. The monosaccharide content of Djf (314.16 mg/g) was significantly higher than that of Ws (60.97 mg/g). Trehalose was the predominant component both in Djf (71.2%) and Ws (78.6%).
对核桃隔膜（Djf）和核桃壳（Ws）的酚类成分及营养特性进行了研究。在Djf和Ws的游离酚类组分（FPFs）中鉴定出了酚酸、羟基苯甲酸、异黄酮和黄酮。结合酚类组分在含量和种类上均少于FPFs。Djf和Ws的可溶性膳食纤维含量分别为25.56 g/100 g和9.5 g/100 g。Djf和Ws中不饱和脂肪酸的含量（分别为1912.28 mg/kg和9137.56 mg/kg）均显著高于饱和脂肪酸。Djf中必需氨基酸的含量（9.67 mg/g）显著高于Ws。在Djf和Ws中检测到了八种以上的单糖。Djf的单糖含量（314.16 mg/g）显著高于Ws（60.97 mg/g）。海藻糖是Djf（71.2%）和Ws（78.6%）中的主要成分。
