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5篇 您的检索式:作者名="Xiangru Liao"
    题名 作者 年代 出处 被引量
1Purification and partial characterization of antifreeze proteins from leaves of Ligustrum lu- cidum Ait 显示文摘Cai Yujie Liu Shang Liao Xiangru 2011Food and Bioproduets Processing2011,89,:1
2Accumulation of chlorogenic acid in cell suspension cultures of Eucommia ul-moides显示文摘Wang Junli Liao Xiangru Zhang Hongmei 2003Plant Cell Tissue and Organ Culture2003,74,19:1
3Production,purification and activity evaluation of three novel antioxidant peptides obtained from grass carp(Ctenopharyngodon idella)scale waste by microbial protease BaApr1 hydrolysis显示文摘In this study,an alkaline protease BaApr1 from the Bacillus altitudinis W3 was chosen to hydrolysis grass carp(Ctenopharyngodon idella)scales.The hydrolysate of alkaline protease BaApr1 exhibited the best antioxidant activity compared to other protease hydrolysates.The optimal hydrolysis conditions for BaApr1 were an enzyme dosage of 1250 U/g,a hydrolysis time of 7 h,a pH of 9.5 and a temperature of 50℃.Three novel peptides were purified using ultrafiltration,anion exchange chromatography,gel filtration chromatography and ultra-performance liquid chromatography,and their sequences were identified as Tyr-Val-Gln-Ala-Gly-Ala-Ala-Gly-Ala-Ala-Ala-His(SHP2),Val-Lys-Leu-Tyr-Val-Leu-Leu-Val-Pro(SHP4),and Val-Gln-Val-Leu-Ala-Gly-Pro-Val-Val-Lys-Leu-Tyr(SHP5)with molecular weights of 1086.53 Da,1043.69 Da and 1285.79 Da,respectively.Among them,SHP2 exhibited the highest scavenging activity on DPPH;(EC_(50)4.08 mg/mL),ABTS+;(EC_(50)0.23 mg/mL)and HO;(EC_(50)2.78 mg/mL),and the strongest reducing power.Additionally,SHP5 can significantly inhibit lipid peroxidation in the linoleic acid system.In conclusion,three peptides isolated from scales of hydrolysate of grass carp showed great antioxidant activity and might be used as potential food ingredients and pharmaceuticals.Shuang Li Qiaopeng Tian Tiantian Meng Zhengbing Guan Yujie Cai Xiangru Liao 2022Systems Microbiology and Biomanufacturing2022,2,3:1
4Purification and partial characterization of antifreeze proteins from leaves of Ligustrum lucidum Ait 显示文摘Cai Yujie Liu Shang Liao Xiangru 2011Food and bioproducts processing2011,89,2:1
5Estimation of Stellar Atmospheric Parameters from LAMOST DR8 Low-resolution Spectra with 20 ≤ S/N < 30显示文摘The accuracy of the estimated stellar atmospheric parameter evidently decreases with the decreasing of spectral signal-to-noise ratio(S/N)and there are a huge amount of this kind observations,especially in case of S/N<30.Therefore,it is helpful to improve the parameter estimation performance for these spectra and this work studied the(T_(eff),log g,[Fe/H])estimation problem for LAMOST DR8 low-resolution spectra with 20≤S/N<30.We proposed a data-driven method based on machine learning techniques.First,this scheme detected stellar atmospheric parameter-sensitive features from spectra by the Least Absolute Shrinkage and Selection Operator(LASSO),rejected ineffective data components and irrelevant data.Second,a Multi-layer Perceptron(MLP)method was used to estimate stellar atmospheric parameters from the LASSO features.Finally,the performance of the LASSO-MLP was evaluated by computing and analyzing the consistency between its estimation and the reference from the Apache Point Observatory Galactic Evolution Experiment high-resolution spectra.Experiments show that the Mean Absolute Errors of T_(eff),log g,[Fe/H]are reduced from the LASP(137.6 K,0.195,0.091 dex)to LASSO-MLP(84.32 K,0.137,0.063 dex),which indicate evident improvements on stellar atmospheric parameter estimation.In addition,this work estimated the stellar atmospheric parameters for 1,162,760 lowresolution spectra with 20≤S/N<30 from LAMOST DR8 using LASSO-MLP,and released the estimation catalog,learned model,experimental code,trained model,training data and test data for scientific exploration and algorithm study.Xiangru Li Zhu Wang Si Zeng Caixiu Liao Bing Du Xiao Kong Haining Li 2022Research in Astronomy and Astrophysics2022,22,6:0
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