Patents by Inventor Wenying Liu
Wenying Liu has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20230235426Abstract: Provided is a method for efficiently promoting a leaching reaction of copper. Equipment for leaching copper includes a reactor for leaching reaction and a controller for oxidation-reduction potential. The reactor is configured to be provided with a leaching solution containing iodine and iron. The reactor is configured to be capable of being tightly sealed during the leaching reaction. The controller for oxidation-reduction potential is configured so that, during the leaching reaction, the oxidation-reduction potential of the leaching solution can be maintained at 500 mV (based on Ag/AgCl reference) or higher.Type: ApplicationFiled: April 20, 2021Publication date: July 27, 2023Applicant: JX NIPPON MINING & METALS CORPORATIONInventors: Akira MIURA, Ronny WINARKO, Wenying LIU
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Publication number: 20220248737Abstract: An oyster peptide with an effect of improving sexual function and a preparation method thereof are provided, the oyster peptide at least includes peptide segments RI, IR and VR in its composition. Based on a mass of the oyster peptide, a content of the RI is ?3.60 mg/100 g, a content of the IR is ?7.60 mg/100 g, and a content of the VR is ?6.50 mg/100 g.Type: ApplicationFiled: April 25, 2022Publication date: August 11, 2022Inventors: MUYI CAI, Ruizeng GU, Haixin ZHANG, WENYING LIU, YING WEI, LEI FANG, XINGCHANG PAN, ZHE DONG, LU LU, MING ZHOU, YUCHEN WANG, KONG LING, YUAN BI
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Publication number: 20220251149Abstract: The present disclosure provides a pea peptide with auxiliary hypoglycemic function, and preparation method and application thereof. The pea peptide includes at least peptide segments pEE, pEK and pER in its composition; and based on a mass of the pea peptide, a content of the peptide segment pEE is ?100.00 mg/100 g, a content of the peptide segment pEK is ?80.00 mg/100 g and a content of the peptide segment pER is ?90.00 mg/100 g. The pea peptide has a significant efficacy in an aspect of reducing blood glucose.Type: ApplicationFiled: April 26, 2022Publication date: August 11, 2022Inventors: MUYI CAI, Ruizeng GU, LIANG CHEN, YUCHEN WANG, WENYING LIU, YUQING WANG, JING WANG, LU LU, YAGUANG XU, YING WEI, GUOMING LI, XIUYUAN QIN
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Publication number: 20210230225Abstract: A selenium-chelating pea oligopeptide, a preparation method thereof and use thereof. After the selenium-chelating pea oligopeptide is subjected to digestion treatment in at least one of following three ways, a change rate of selenium content not more than 3% with respect to the selenium content before the digestion treatment: hydrolyzing for 4 hours by a pepsin at a pH value of 2 and a temperature of 37° C.; hydrolyzing for 6 hours by a trypsin at a pH value of 7.5 and a temperature of 37° C.; maintaining the temperature constant at 37° C., firstly hydrolyzing for 4 hours by the pepsin at a pH value of 2, and then continuing to hydrolyze for 6 hours by a trypsin at a pH value of 6.8. The preparation method thereof includes mixing and reacting an aqueous solution of pea oligopeptide and sodium selenite, and then being subjected to alcohol precipitation and drying.Type: ApplicationFiled: April 9, 2021Publication date: July 29, 2021Inventors: MUYI CAI, Ruizeng GU, Jun LU, WENYING LIU, XIUYUAN QIN, XINGCHANG PAN, ZHE DONG, YONG MA, YAGUANG XU, YONGQING MA, LIANG CHEN, LU LU, HAIXIN ZHANG, YING WEI, YAN LIU, KELU CAO, JING WANG, GUOMING LI, MING ZHOU, YUCHEN WANG, YUQING WANG, KONG LING, YUAN BI, XINYUE CUI
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Patent number: 9974321Abstract: Disclosed are a fish protein oligopeptide with low allergenicity and slight fishiness, and industrial preparation method and application thereof. The method comprises the following steps: 1) washing fresh fish flesh and/or fish wastes, crushing, and adding water to obtain a mixture; 2) performing thermal denaturation on the mixture to obtain a denaturized protein solution; 3) centrifuging the denaturized protein solution to obtain a precipitate, and adding water into the precipitate and grinding, to obtain a slurry; 4) adjusting the slurry to pH 6-9, and sequentially adding a neutral protease, a papain and an alkaline protease to conduct enzymolysis, and after enzyme inactivation, to obtain an enzymatic hydrolysate; 5) centrifuging the enzymatic hydrolysate, and performing membrane filtration on centrifuged supernatant, to obtain the fish protein oligopeptide with low allergenicity and slight fishiness.Type: GrantFiled: February 24, 2017Date of Patent: May 22, 2018Assignee: CHINA NATIONAL RESEARCH INSTITUTE OF FOOD AND FERMENTATION INDUSTRIESInventors: Muyi Cai, Ruizeng Gu, Jun Lu, Tao Ma, Xingchang Pan, Zhe Dong, Yong Ma, Yaguang Xu, Yongqing Ma, Zhentao Jin, Liang Chen, Lu Lu, Wenying Liu, Ying Wei, Haixin Zhang, Yan Liu, Kelu Cao, Jing Wang, Guoming Li, Ming Zhou
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Patent number: 9906030Abstract: The present invention has disclosed an optimal control method for reactive voltage of wind power and photovoltaic power centralized grid connection in the field of wind power and photovoltaic power grid connection control technology, comprising: setting actuating stations used to control single wind power plant/photovoltaic power plant, setting substations used to control actuating stations and set master station used to control all the substations; master station calculates setting voltage reference Uref of each substation; adopting 3? method to process set voltage reference Uref to obtain set voltage reference interval; regulating high-side voltage of substation to make it fall in set voltage reference interval; if high-side voltage of substation does not fall in set voltage reference interval, then regulating the equipment in wind power plant/photovoltaic power plant via actuating station. The present invention guides the actual operations of electric power system.Type: GrantFiled: April 18, 2014Date of Patent: February 27, 2018Assignees: GANSU ELECTRIC POWER CORPORATION WIND POWER TECHNOLOGY CENTER, STATE GRID GANSU ELECTRIC POWER CORPORATION, STATE GRID CORPORATION OF CHINAInventors: Ningbo Wang, Wenying Liu, Dan Jin, Jiaming Wang, Yanhong Ma, Cai Liang, Long Zhao, Yalong Li, Qiang Zhou, Jing Wen, Rong Huang, Rundong Ge, Jin Li, Peng Xu
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Patent number: 9793713Abstract: A method for improving system small disturbance stability after double-fed unit gets access to the system belongs to the field of electric power system operation and control technology. A sensitivity analysis is adopted to optimize parameter, through making sensitivity analysis on the non-ideal dominant mode happens to the system to find out several nonzero elements that are most sensitive to this mode in system matrix; elements of state matrix is adopted to replace the elements of system matrix to make analysis so as to find out the most relevant parameter set; setting parameters change in the interval to observe track for the change of eigenvalues of corresponding mode and then balancing and optimizing system parameters comprehensively according to the change of eigenvalues.Type: GrantFiled: March 28, 2014Date of Patent: October 17, 2017Assignee: GANSU ELECTRIC POWER CORPORATION WIND POWER TECHNOLOGY CENTERInventors: Ningbo Wang, Chongru Liu, Long Zhao, Yi Ding, Zhongyi Liu, Yanhong Ma, Dan Wang, Dan Jin, Wenying Liu, Shiyuan Zhou, Kun Ding, Qiang Zhou, Jin Li
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Publication number: 20170164638Abstract: Disclosed are a fish protein oligopeptide with low allergenicity and slight fishiness, and industrial preparation method and application thereof The method comprises the following steps: 1) washing fresh fish flesh and/or fish wastes, crushing, and adding water to obtain a mixture; 2) performing thermal denaturation on the mixture to obtain a denaturized protein solution; 3) centrifuging the denaturized protein solution to obtain a precipitate, and adding water into the precipitate and grinding, to obtain a slurry; 4) adjusting the slurry to pH 6-9, and sequentially adding a neutral protease, a papain and an alkaline protease to conduct enzymolysis, and after enzyme inactivation, to obtain an enzymatic hydrolysate; 5) centrifuging the enzymatic hydrolysate, and performing membrane filtration on centrifuged supernatant, to obtain the fish protein oligopeptide with low allergenicity and slight fishiness.Type: ApplicationFiled: February 24, 2017Publication date: June 15, 2017Inventors: MUYI CAI, RUIZENG GU, JUN LU, TAO MA, XINGCHANG PAN, ZHE DONG, YONG MA, YAGUANG XU, YONGQING MA, ZHENTAO JIN, LIANG CHEN, LU LU, WENYING LIU, YING WEI, HAIXIN ZHANG, YAN LIU, KELU CAO, JING WANG, GUOMING LI, MING ZHOU
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Patent number: 9667066Abstract: The present invention has disclosed a wind power bundling control method after wind power and thermal power are connected to a power grid in the field of electric power system security technology, including regulating wind power output and thermal power output forward or backward; calculating the transient stability margin of the grid, load level index of element and voltage out-of-limit index of busbar after regulating wind power output and thermal power output respectively; calculating wind power/thermal power paying value according to the transient stability margin of the grid, load level index of element and voltage out-of-limit index of busbar after regulating wind power output and thermal power output; if wind power/thermal power paying value is larger than set threshold value, regulating wind power output and thermal power output backward/forward; if wind power/thermal power paying value is smaller than set threshold value, regulating wind power output and thermal power output forward/backward.Type: GrantFiled: April 16, 2014Date of Patent: May 30, 2017Assignees: GANSU ELECTRIC POWER CORPORATION WIND POWER TECHNOLOGY CENTER, STATE GRID GANSU ELETRIC POWER CORPORATION, STATE GRID CORPORATION OF CHINA, NORTH CHINA ELECTRIC POWER UNIVERSITYInventors: Ningbo Wang, Wenying Liu, Yanhong Ma, Jiaming Wang, Dan Jin, Cai Liang, Shiyuan Zhou, Xiaodan Wu, Kun Ding, Zilan Zhao, Qiang Zhou, Bin Yang, Jin Li, Peng Xu, Long Zhao, Rundong Ge
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Publication number: 20170143001Abstract: The present invention provides a soybean oligopeptide with low allergenicity and little bitterness and its preparation method and application. The preparation method includes the following steps: 1) mixing a soybean protein powder with water to obtain a soybean protein solution, and then performing thermal denaturation on the soybean protein solution, to prepare a denatured protein solution; 2) adjusting pH value of the denatured protein solution to 6-9, and then adding a neutral protease and papain to conduct a first enzymolysis, to obtain a first enzymatic hydrolysate; 3) adding an alkaline protease and a flavor protease into the first enzymatic hydrolysate to conduct a second enzymolysis, and after performing enzyme inactivation, to obtain a second enzymatic hydrolysate; and 4) centrifuging the second enzymatic hydrolysate, and performing membrane filtration on centrifuged supernatant liquid, to obtain the soybean oligopeptide with low allergenicity and little bitterness.Type: ApplicationFiled: February 3, 2017Publication date: May 25, 2017Inventors: MUYI CAI, RUIZENG GU, JUN LU, TAO MA, XINGCHANG PAN, ZHE DONG, YONG MA, YAGUANG XU, YONGQING MA, ZHENTAO JIN, LIANG CHEN, LU LU, WENYING LIU, YING WEI, HAIXIN ZHANG, YAN LIU, KELU CAO, JING WANG, GUOMING LI, MING ZHOU, HUI CHEN, JIAJI LI
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Patent number: 9609883Abstract: The present invention discloses a method for producing wheat glutamine peptide using wheat gluten powder as raw material, belonging to the fields of food and biotechnology. The method includes the steps of: performing enzymolysis in two steps using Alcalase and papain with the wheat gluten powder as raw material, to obtain the wheat glutamine peptide with components with molecular weight of less than 1000 Da being more than 90%, characteristic glutamine peptide segment glutamine-arginine-glutamine (Gln-Arg-Gln, QRQ) content being more than 2.0% and glutamine content being up to 23.54% by treating the enzymatic hydrolysate by centrifugation, ultrafiltration, concentration, spray drying, etc. The produced glutamine peptide can be used as functional nutrition composition ingredient in the development and production of ordinary foods, health foods and medicines.Type: GrantFiled: October 15, 2014Date of Patent: April 4, 2017Assignee: CHINA NATIONAL RESEARCH INSTITUTE OF FOOD AND FERMENTATION INDUSTRIESInventors: Muyi Cai, Ruizeng Gu, Jun Lu, Feng Lin, Yong Ma, Zhe Dong, Xingchang Pan, Yongqing Ma, Yaguang Xu, Zhentao Jin, Liang Chen, Wenying Liu, Ying Wei, Haixin Zhang, Lu Lu, Yan Liu, Tao Ma, Simeng Jiang, Kelu Cao, Jing Wang
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Publication number: 20150357818Abstract: The present invention has disclosed an optimal control method for reactive voltage of wind power and photovoltaic power centralized grid connection in the field of wind power and photovoltaic power grid connection control technology, comprising: setting actuating stations used to control single wind power plant/photovoltaic power plant, setting substations used to control actuating stations and set master station used to control all the substations; master station calculates setting voltage reference Uref of each substation; adopting 3? method to process set voltage reference Uref to obtain set voltage reference interval; regulating high-side voltage of substation to make it fall in set voltage reference interval; if high-side voltage of substation does not fall in set voltage reference interval, then regulating the equipment in wind power plant/photovoltaic power plant via actuating station. The present invention guides the actual operations of electric power system.Type: ApplicationFiled: April 18, 2014Publication date: December 10, 2015Inventors: NINGBO WANG, WENYING LIU, DAN JIN, JIAMING WANG, YANHONG MA, CAI LIANG, LONG ZHAO, YALONG LI, QIANG ZHOU, JING WEN, RONG HUANG, RUNDONG GE, JIN LI, PENG XU
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Publication number: 20150349528Abstract: The present invention has disclosed a wind power bundling control method after wind power and thermal power are connected to a power grid in the field of electric power system security technology, including regulating wind power output and thermal power output forward or backward; calculating the transient stability margin of the grid, load level index of element and voltage out-of-limit index of busbar after regulating wind power output and thermal power output respectively; calculating wind power/thermal power paying value according to the transient stability margin of the grid, load level index of element and voltage out-of-limit index of busbar after regulating wind power output and thermal power output; if wind power/thermal power paying value is larger than set threshold value, regulating wind power output and thermal power output backward/forward; if wind power/thermal power paying value is smaller than set threshold value, regulating wind power output and thermal power output forward/backward.Type: ApplicationFiled: April 16, 2014Publication date: December 3, 2015Inventors: NINGBO WANG, WENYING LIU, YANHONG MA, JIAMING WANG, DAN JIN, CAI LIANG, SHIYUAN ZHOU, XIAODAN WU, KUN DING, ZILAN ZHAO, QIANG ZHOU, BIN YANG, JIN LI, PENG XU, LONG ZHAO, RUNDONG GE
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Publication number: 20150318697Abstract: A method for improving system small disturbance stability after double-fed unit gets access to the system belongs to the field of electric power system operation and control technology. A sensitivity analysis is adopted to optimize parameter, through making sensitivity analysis on the non-ideal dominant mode happens to the system to find out several nonzero elements that are most sensitive to this mode in system matrix; elements of state matrix is adopted to replace the elements of system matrix to make analysis so as to find out the most relevant parameter set; setting parameters change in the interval to observe track for the change of eigenvalues of corresponding mode and then balancing and optimizing system parameters comprehensively according to the change of eigenvalues.Type: ApplicationFiled: March 28, 2014Publication date: November 5, 2015Inventors: NINGBO WANG, CHONGRU LIU, LONG ZHAO, YI DING, ZHONGYI LIU, YANHONG MA, DAN WANG, DAN JIN, WENYING LIU, SHIYUAN ZHOU, KUN DING, QIANG ZHOU, JIN LI
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Patent number: 8940685Abstract: The present invention discloses a method for producing antihypertensive active peptides with corn germ protein as the material. The method comprises an alkali-heat treatment and continuous enzymolysis of the corn germ protein. The components with molecular weight less than 1000 Da in the active peptides obtained according to the present method account for more than 92%, and alanine-tyrosine (Ala-Tyr, AY) as the characteristic peptide fragments in the antihypertensive peptides accounts for more than 0.6%, so that the active peptides have a good ACE inhibitory activity in vitro as well as stability against temperature, pH and major gastrointestinal digestive enzymes, and have a significant effect of lowering blood pressure on spontaneous hypertension rats in vivo. The active peptides can be applied as a new functional nutrient to development and production of food, health food and pharmaceutical.Type: GrantFiled: May 14, 2013Date of Patent: January 27, 2015Assignee: China National Research Institute of Food and Fermentation IndustriesInventors: Muyi Cai, Ruizeng Gu, Weixue Yi, Jun Lu, Yong Ma, Zhe Dong, Yaguang Xu, Xingchang Pan, Yongqing Ma, Feng Lin, Zhentao Jin, Liang Chen, Lu Lu, Wenying Liu
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Publication number: 20140147554Abstract: The present invention discloses an enzyme beverage of natural garden stuff and a method for preparing the same. The enzyme beverage is prepared from a fresh juice extracted from fresh garden stuffs and added with marine fish-skin collagen peptide, as a fermentation substrate, by dilution, blending and sterilization followed by stepwise fermentation with lactobacillus and yeast in sequence. With stepwise fermentation of the garden stuff juice from two or more fresh garden stuffs with lactobacillus and yeast, and the addition of marine fish-skin collagen peptide for accelerating growth and metabolism of fermenting strains, said beverage contains more abundant metabolites from the nutritional ingredients of the natural garden stuffs, and will bring more beneficial and nutritional effects on health.Type: ApplicationFiled: January 28, 2014Publication date: May 29, 2014Applicant: CHINA NATIONAL RESEARCH INSTITUTE OF FOOD AND FERMENTATION INDUSTRIESInventors: Muyi Cai, Ruizeng Gu, Jun Lu, Weixue Yi, Zhe Dong, Yong Ma, Xingchang Pan, Yaguang Xu, Yongqing Ma, Feng Lin, Zhentao Jin, Wenying Liu, Liang Chen, Lu Lu
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Publication number: 20130252877Abstract: The present invention discloses a method for producing antihypertensive active peptides with corn germ protein as the material. The method comprises an alkali-heat treatment and continuous enzymolysis of the corn germ protein. The components with molecular weight less than 1000 Da in the active peptides obtained according to the present method account for more than 92%, and alanine-tyrosine (Ala-Tyr, AY) as the characteristic peptide fragments in the antihypertensive peptides accounts for more than 0.6%, so that the active peptides have a good ACE inhibitory activity in vitro as well as stability against temperature, pH and major gastrointestinal digestive enzymes, and have a significant effect of lowering blood pressure on spontaneous hypertension rats in vivo. The active peptides can be applied as a new functional nutrient to development and production of food, health food and pharmaceutical.Type: ApplicationFiled: May 14, 2013Publication date: September 26, 2013Applicant: CHINA NATIONAL RESEARCH INSTITUTE OF FOOD AND FERMENTATIONInventors: MUYI CAI, Ruizeng Gu, Weixue Yi, Jun Lu, Yong Ma, Zhe Dong, Yaguang Xu, Xingchang Pan, Yongqing Ma, Feng Lin, Zhentao Jin, Liang Chen, Lu Lu, Wenying Liu