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Antioxidant and Antigenotoxic Activities of Ethanol Extracts from Rhus chinensis Mill Leaves
Zhenyu Qiu,Mingli Tang,Guanjun Deng,Hao Yang,Xuan Zhang,Shengwei Huang,Lifang Wu 한국식품과학회 2014 Food Science and Biotechnology Vol.23 No.4
Ethanol extracts were obtained from Rhuschinensis Mill (RCM) leaves and used for antioxidant andantigenotoxic activity assays. IC50 values in DPPH assayswere 15.96, 18.83, 20.43, 27.93, 37.43, 46.21, and 141.84μg/mL for TPP, IPE, LLE, Vc, CE, BHT, and Trolox. Similar results were obtained using ABTS and FRAPassays. In vivo testing showed strong antioxidant activitiesthat were positively correlated with polyphenol contents. Leaf tissue contained abundant polyphenols, and more than10 phenolic compounds were detected in extracts. Quantitative results showed that quercetin-3-rhamnoside(26.4±0.76 mg/g of extract) was the most abundantingredient, followed by hyperoside (15.2±0.42 mg/g ofextract), quercetin (1.5±0.07mg/g of extract), and kaempferol(0.48±0.05 mg/g of extract). This study increases theknowledge for possible uses of forest by-products as asubstitute for gallnuts.
Behavior Characteristics of Hydrogen and its Isotope in Molten Salt of LiF-NaF-KF (FLiNaK)
Youshi Zeng,Wenguan Liu,WeiLiu,Yuan Qian,Nan Qian,Xiaoling Wu,Yu Huang,Shengwei Wu,Guanghua Wang 한국원자력학회 2019 Nuclear Engineering and Technology Vol.51 No.2
Experimental studies to investigate the behaviors of hydrogen in molten FLiNaK (LiF-NaF-KF) have beenconducted at 500e700 C. On the basis of previous studies, the diffusivity and solubility of hydrogen inFLiNaK have been revised, and the expressions can be correlated to the following Arrhenius equations:DH2 ¼ 1.62 10 5exp ( 48.20 103/Rg$T) [m2/s] and SH2 ¼ 1.03 10 4exp ( 14.96 103/Rg$T) [mol-H2/m3/Pa], respectively. The behavior characteristics of deuterium in FLiNaK were studied and comparedwith the hydrogen behaviors in FLiNaK. The results showed the behaviors of deuterium were consistencewith the behaviors of hydrogen in FLiNaK. The difference between hydrogen and deuterium has not beenobserved upon the experimental research of the behavior characteristics of hydrogen and deuterium inFLiNaK, which suggested the results obtained here might apply equally to the behavior characteristics oftritium in FLiNaK.