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Full-Text Articles in Life Sciences
Analysis Of Active Compounds, Antioxidant Activity And Correlation In Different Parts From Ficus Tikoua Bur., Yang Xiu-Qun, Xie Guo-Fang, Wu Qian, Chen Lian, Chen Jia, Liu Yong-Ling
Analysis Of Active Compounds, Antioxidant Activity And Correlation In Different Parts From Ficus Tikoua Bur., Yang Xiu-Qun, Xie Guo-Fang, Wu Qian, Chen Lian, Chen Jia, Liu Yong-Ling
Food and Machinery
To investigate the bioactive compounds and antioxidant activity of vine, leaves and fruits of the Ficus tikoua Bur. in Guizhou Province, the phenolic compounds, vitamin C, total phenols, total flavonoids were analyzed. Antioxidant activity was evaluated by total reducing power assay (TRPA), free radical scavenging capacity of ABTS+· (ABTS) and ferric ion reducing antioxidant power(FRAP) method in vitro, and Pearson correlation analysis was conducted. The results indicated that the contents of bioactive compounds and antioxidant activity were significantly different between the vine, leaves and fruits (P＜0.05). The content of total phenols and flavonoids in vine was significantly higher …
Optimization Of Ultrasonic-Assisted Extraction Of Total Flavonoids From Leaves Of Phyllanthus Emblica And Its Antioxidant Capacity, Du Li-Juan, Su Xiu-Fang, Huang Cheng-Yin
Optimization Of Ultrasonic-Assisted Extraction Of Total Flavonoids From Leaves Of Phyllanthus Emblica And Its Antioxidant Capacity, Du Li-Juan, Su Xiu-Fang, Huang Cheng-Yin
Food and Machinery
Optimization ultrasonic-assisted extraction of total flavonoid from leaves of phyllanthus emblica was investigated and its antioxidant capacity was determined. Through single factor experiment and orthogonal experiment, the optimization of ultrasonic-assisted extraction of total flavonoids was determined as follows, including the ratio of material to liquid 1:25 (g/mL), ethanol concentration 60%, ultrasonic power 70 W, and extraction at 60 ℃ for 20 min. Under the control of these conditions, the extraction rate of the total flavonoids from leaves of P. emblica was as high as 14.57%. Moreover, the total flavonoids from leaves of P. emblica were found good scavenging effect. With …
Impacts Of Microwave Treatment On Physicochemical Properties Of Black Rice Wine, Chen Zhou-Yao, Yuan Jiang-Feng, Hou Zeng-Chao, Wang Da-Hong, Li Pei-Yan, Gong Ming-Gui, Zhang Bin
Impacts Of Microwave Treatment On Physicochemical Properties Of Black Rice Wine, Chen Zhou-Yao, Yuan Jiang-Feng, Hou Zeng-Chao, Wang Da-Hong, Li Pei-Yan, Gong Ming-Gui, Zhang Bin
Food and Machinery
Microwave technology was applied to process black rice wine, effects of microwave power, microwave treatment temperature and microwave time on total phenolic content, total flavonoid content, total anthocyanins, colour and antioxidant activity of black rice wine were investigated. The results showed that the total phenol content, total flavonoids content, total anthocyanin content and antioxidant activity of the black rice wine obviously decreased after microwave treatment the black rice wine compared with the untreated black rice wine, and microwave treatment had little effect on the color change of black rice wine. The DPPH radical scavenging capacity, superoxide anion radical scavenging capacity, …