文献类型: 外文期刊
作者: Xiao, Weihua;Han, Lujia;Shi, Bo
作者机构:
关键词: Microwave-assisted extraction;Flavonoids;Radix Astragali;Stability
期刊名称: SEPARATION AND PURIFICATION TECHNOLOGY
ISSN:
年卷期:
页码:
收录情况: SCI
摘要: Microwave-assisted extraction (MAE) technique was developed for the fast extraction of flavonoids from Radix Astragali. Several influential parameters of the MAE procedure (microwave power, extraction cycles, ethanol concentration, extraction temperature, irradiation time, and solvent to material ratio) were studied for the optimization of the extraction protocol. The maximum yield of flavonoids with MAE was obtained by dual extraction with 90% ethanol 25ml/g material at 110 °C for 25min. No degradation of the flavonoids was observed using the developed extraction protocol. The optimal yield with MAE 1.190 ± 0.042 mg/g were close to that of Soxhlet extracted with methanol for 4 h (1.292 ± 0.033 mg/g) and higher than that of ultrasound assisted extraction with methanol for 2 x 30 min and heat reflux extraction with 90% ethanol for 2 x 2 h.
分类号: TQ028
- 相关文献
作者其他论文 更多>>
-
Development of poly-D-mannose-stabilized silver nanoparticles exhibiting antibacterial and antibiofilm properties
作者:Tian, Dandan;Xu, Xiaoqing;Zhang, Fengjiao;Chen, Weifeng;Zhang, Huang;Shi, Bo
关键词:antibiofilm;antimicrobial;silver nanoparticles;poly-D-mannose
-
Tolerance and toxicity assessment of a novel methionine source, dipeptide Met-Met on common carp Cyprinus carpio
作者:Yin, Ziyu;Shi, Bo;Liang, Xiaofang;Wang, Hao;Wang, Jie;He, Juyun;Xue, Min
关键词:Met-Met;Safety assessment;Overdose;Metabolites;Common carp
-
Probiotic activity of ropy Lactiplantibacillus plantarum NA isolated from Chinese northeast sauerkraut and comparative evaluation of its live and heat-killed cells on antioxidant activity and RAW 264.7 macrophage stimulation
作者:Xu, Xiaoqing;Qiao, Yu;Peng, Qing;Dia, Vermont Punongba;Shi, Bo
关键词:
-
Antioxidant and Immunomodulatory Activities of Polysaccharides from Fermented Wheat Products of Grifola frondosa: In Vitro Methods
作者:Xu, Xiaoqing;Liu, Ying;Pan, Chunli;Han, Shaoliang;Ma, Lan;Qiao, Yu;Shi, Bo;Peng, Qing
关键词:
-
Antioxidant and Immunomodulatory Properties of Partially purified Exopolysaccharide from Lactobacillus Casei Isolated from Chinese Northeast Sauerkraut
作者:Xu, Xiaoqing;Qiao, Yu;Peng, Qing;Shi, Bo;Dia, Vermont P.
关键词:Exopolysaccharide; Lactobacillus casei NA-2; radical-scavenging; RAW 264; 7 macrophages; cytokines; reactive oxygen species (ROS)
-
Isolation of a novel alkaline-stable lipase from a metagenomic library and its specific application for milkfat flavor production
作者:Peng, Qing;Wang, Xu;Shang, Meng;Huang, Jinjin;Guan, Guohua;Li, Ying;Peng, Qing;Wang, Xu;Shang, Meng;Huang, Jinjin;Guan, Guohua;Li, Ying;Peng, Qing;Shi, Bo
关键词:Metagenomic library;Alkaline-stable lipase;Myristic acid;Palmitic acid;Milkfat flavor
-
Description of Wheat Straw Relaxation Behavior Based on a Fractional-Order Constitutive Model
作者:Chen, Longjian;Han, Lujia;Liao, Na;Xing, Li
关键词: