-
公开(公告)号：US20230235095A1
公开(公告)日：2023-07-27
申请号：US18122181
申请日：2023-03-16
Applicant: Jiangnan University
Inventor： Chao Qiu , Jinpeng Wang , Yao Hu , Zhengyu Jin , Qianzhu Lin , Yaoqi TIAN , Aiquan Jiao , Long Chen , Zhengjun Xie , Xing Zhou
CPC classification number: C08B37/0012 , B01J27/1806
Abstract: The present disclosure discloses a simple preparation method of green acid-modified cyclodextrin, belonging to the field of cyclodextrin modification. Cyclodextrin and succinic acid are mutually modified by an esterification reaction in the presence of catalyst, and acid-modified cyclodextrin with different modification degrees is obtained by controlling reaction time at a high temperature or under a microwave action. The prepared modified cyclodextrin does not involve the use of toxic and harmful reagents, the modification reaction is simple, green and controllable, and the loading capacity of the modified cyclodextrin to guest molecules is remarkably improved compared with the loading capacity of the original cyclodextrin, so that the modified cyclodextrin has great application potential in the health fields such as food, medicines, and cosmetics.
-
公开(公告)号：US20170136437A1
公开(公告)日：2017-05-18
申请号：US15107064
申请日：2015-03-26
Applicant: Jiangnan University
Inventor： Xueming Xu , Na Yang , Yamei Jin , Nannan Zhang , Dandan Li , Fengfeng Wu , Zhengyu Jin , Yisheng Chen , Xing Zhou , Aiquan Jiao , Jie Ren
IPC: B01J19/08 , B01D11/04 , H01F7/06 , H01F7/02 , C12P7/58 , H01F27/28 , C12P7/62 , C12P19/02 , C12P19/04 , C12N13/00 , H02P31/00
CPC classification number: B01J19/087 , B01D11/0419 , B01J2219/0801 , B01J2219/0854 , B01J2219/0871 , C12M21/18 , C12M29/18 , C12M35/02 , C12M35/06 , C12N13/00 , C12P7/58 , C12P7/62 , C12P19/02 , C12P19/04 , H01F7/0205 , H01F7/0294 , H01F7/064 , H01F27/2823 , H02P31/00
Abstract: An inductive magnetoelectric biochemical reaction system includes a reaction unit which includes a reaction chamber, which includes a reactant container and is disposed in a rotatable perpendicular magnetic field; a primary coil, which is wound around one side of a closed-loop iron core and is connected to a control unit; a secondary coil, which is wound around the other side of the closed-loop iron core and includes an insulating tube which allows a reaction solution acting as a conductor, two ends of the insulating tube being communicated with the reactant container; a rotating magnetic field unit, which is configured to generate the rotatable perpendicular magnetic field; and a control unit, which is at least configured to adjust an excitation voltage and a signal type applied on the primary coil.
-
公开(公告)号：US11041179B2
公开(公告)日：2021-06-22
申请号：US16288765
申请日：2019-02-28
Applicant: Jiangnan University
Inventor： Yuxiang Bai , Zhengyu Jin , Liuxi Xia , Yun Wu , Xueming Xu , Zhengjun Xie , Jinpeng Wang , Xing Zhou
Abstract: The disclosure herein relates to a method for preparing branched cyclodextrin and application thereof, and belongs to the technical field of synthesis of branched cyclodextrin. The method comprises the following steps: (1) dissolving maltodextrin in a phosphate buffer solution, and adding CGTase for reacting; (2) reducing enzyme activity by a physical method; and (3) adding a saccharifying enzyme to the reaction system of step (2), and performing high-temperature enzyme deactivation to obtain the branched cyclodextrin. The method has mild reaction conditions, and at the same time, cyclodextrin and unreacted substrates can be hydrolyzed via the weak coupling activity of CGTase, thereby realizing effective separation of the branched cyclodextrin.
-
公开(公告)号：US11802167B2
公开(公告)日：2023-10-31
申请号：US17097008
申请日：2020-11-13
Applicant: Jiangnan University
Inventor： Xing Zhou , Tingting Meng , Zhengyu Jin , Ren Wang , Jianwei Zhao , Jinpeng Wang , Aiquan Jiao , Xueming Xu
Abstract: A method for producing a cold-water-soluble starch. The method includes: 1) adding a starch and 3-45 wt. % of an ethanol aqueous solution to a container, and stirring a mixture of the starch and the ethanol aqueous solution in the container, thus yielding a starch-ethanol-water; 2) introducing the starch-ethanol-water to an extruder and producing a noodle extrudate, where the extruder comprises 3 continuous temperature control areas: a first area having a temperature of 50° C., a second area having a temperature of between 95 and 120° C., and a third area having a temperature of 60° C.; a rotation speed of the extruder is 70-150 rpm; and the noodle extrudate has a diameter of 0.2-0.5 cm; 3) pressing and roll slitting the noodle extrudate, thus yielding a plurality of slices; and 4) drying the plurality of slices in a microwave vacuum oven, cooling, and pulverizing the plurality of slices.
-
公开(公告)号：US11999981B2
公开(公告)日：2024-06-04
申请号：US18489954
申请日：2023-10-19
Applicant: Jiangnan University
Inventor： Jie Long , Ziying Ye , Zhengyu Jin , Cheng Lu , Xingfei Li , Yaoqi Tian , Yuxiang Bai , Xing Zhou , Chao Qiu , Long Chen , Zhengjun Xie
CPC classification number: C12N9/2468 , C12N15/63 , C12Y302/01081
Abstract: Disclosed are an agarase mutant with improved thermal stability and application thereof, belonging to the fields of genetic engineering technology and enzyme engineering. The present disclosure provides an agarase mutant, which is obtained by mutating the amino acid at the 86th site, the 373rd site, the 374th site, the 496th site, the 507th site, or the 747th site of agarase with an amino acid sequence as shown in SEQ ID NO. 1. The agarase mutant provided by the present disclosure improves the thermal stability and the hydrolytic activity of the agarase. Compared with the wild type enzyme, the mutant enzyme shows excellent heat resistance and can be industrially used at a relatively high temperature, so that the utilization rate of agar raw materials and the yield of oligosaccharides from agar are improved, and the mutant enzyme has a good industrial application prospect.
-
Patent Agency Ranking
公开(公告)号：US11840584B2
公开(公告)日：2023-12-12
申请号：US18122181
申请日：2023-03-16
Applicant: Jiangnan University
Inventor： Chao Qiu , Jinpeng Wang , Yao Hu , Zhengyu Jin , Qianzhu Lin , Yaoqi Tian , Aiquan Jiao , Long Chen , Zhengjun Xie , Xing Zhou
CPC classification number: C08B37/0012 , B01J27/1806
Abstract: The present disclosure discloses a simple preparation method of green acid-modified cyclodextrin, belonging to the field of cyclodextrin modification. Cyclodextrin and succinic acid are mutually modified by an esterification reaction in the presence of catalyst, and acid-modified cyclodextrin with different modification degrees is obtained by controlling reaction time at a high temperature or under a microwave action. The prepared modified cyclodextrin does not involve the use of toxic and harmful reagents, the modification reaction is simple, green and controllable, and the loading capacity of the modified cyclodextrin to guest molecules is remarkably improved compared with the loading capacity of the original cyclodextrin, so that the modified cyclodextrin has great application potential in the health fields such as food, medicines, and cosmetics.
-
7.发明授权公开(公告)号：US10460869B2
公开(公告)日：2019-10-29
申请号：US15548052
申请日：2016-01-21
Applicant: Jiangnan University
Inventor： Na Yang , Xueming Xu , Yamei Jin , Fengfeng Wu , Zhengyu Jin , Xing Zhou , Yaoqi Tian , Aiquan Jiao
Abstract: The present invention discloses a multi-series continuous-flow magnetoelectric coupling processing system and applications thereof. The processing system comprises multi-series of induction units, a power supply and a feed liquid container, wherein each series of the induction unit comprises a closed iron core, a primary coil wound around one side of the closed iron core, and a secondary coil wound around the other side of the closed iron core and arranged in an induction cavity, the secondary coil comprises an insulation pipe for circulation of feed liquid, and the two ends of the insulation pipe are exposed from the induction cavity and are respectively acted as a feeding hole and a discharge hole; the power supply is in parallel connection with each primary coil in the induction unit and provides excitation voltage to each primary coil; and the feed liquid container is in series connection with the insulation pipes of the multi-series induction units to form a feed liquid circulation loop. According to the multi-series continuous-flow magnetoelectric coupling processing system and the applications thereof, operation parameters are abundant; no electrode directly contacts with the feed liquid, thereby avoiding ionic polarization, electrochemical reactions, and heavy metal contamination; besides, the multi-series continuous-flow magnetoelectric coupling processing system has advantage of high mass transfer efficiency.
-
8.发明申请公开(公告)号：US20180033548A1
公开(公告)日：2018-02-01
申请号：US15548052
申请日：2016-01-21
Applicant: Jiangnan University
Inventor： Na Yang , Xueming Xu , Yamei Jin , Fengfeng Wu , Zhengyu Jin , Xing Zhou , Yaoqi Tian , Aiquan Jiao
Abstract: The present invention discloses a multi-series continuous-flow magnetoelectric coupling processing system and applications thereof. The processing system comprises multi-series of induction units, a power supply and a feed liquid container, wherein each series of the induction unit comprises a closed iron core, a primary coil wound around one side of the closed iron core, and a secondary coil wound around the other side of the closed iron core and arranged in an induction cavity, the secondary coil comprises an insulation pipe for circulation of feed liquid, and the two ends of the insulation pipe are exposed from the induction cavity and are respectively acted as a feeding hole and a discharge hole; the power supply is in parallel connection with each primary coil in the induction unit and provides excitation voltage to each primary coil; and the feed liquid container is in series connection with the insulation pipes of the multi-series induction units to form a feed liquid circulation loop. According to the multi-series continuous-flow magnetoelectric coupling processing system and the applications thereof, operation parameters are abundant; no electrode directly contacts with the feed liquid, thereby avoiding ionic polarization, electrochemical reactions, and heavy metal contamination; besides, the multi-series continuous-flow magnetoelectric coupling processing system has advantage of high mass transfer efficiency.
-
公开(公告)号：US09782742B2
公开(公告)日：2017-10-10
申请号：US15107064
申请日：2015-03-26
Applicant: Jiangnan University
Inventor： Xueming Xu , Na Yang , Yamei Jin , Nannan Zhang , Dandan Li , Fengfeng Wu , Zhengyu Jin , Yisheng Chen , Xing Zhou , Aiquan Jiao , Jie Ren
IPC: C12M1/42 , B01J19/08 , C12N13/00 , B01D11/04 , H01F7/06 , H01F7/02 , H02P31/00 , H01F27/28 , C12P7/62 , C12P19/02 , C12P19/04 , C12P7/58 , C12M1/00
CPC classification number: B01J19/087 , B01D11/0419 , B01J2219/0801 , B01J2219/0854 , B01J2219/0871 , C12M21/18 , C12M29/18 , C12M35/02 , C12M35/06 , C12N13/00 , C12P7/58 , C12P7/62 , C12P19/02 , C12P19/04 , H01F7/0205 , H01F7/0294 , H01F7/064 , H01F27/2823 , H02P31/00
Abstract: An inductive magnetoelectric biochemical reaction system includes a reaction unit which includes a reaction chamber, which includes a reactant container and is disposed in a rotatable perpendicular magnetic field; a primary coil, which is wound around one side of a closed-loop iron core and is connected to a control unit; a secondary coil, which is wound around the other side of the closed-loop iron core and includes an insulating tube which allows a reaction solution acting as a conductor, two ends of the insulating tube being communicated with the reactant container; a rotating magnetic field unit, which is configured to generate the rotatable perpendicular magnetic field; and a control unit, which is at least configured to adjust an excitation voltage and a signal type applied on the primary coil.
-
公开(公告)号：US12145866B2
公开(公告)日：2024-11-19
申请号：US17402871
申请日：2021-08-16
Applicant: Jiangnan University
Inventor： Jinpeng Wang , Jing Li , Zhengyu Jin , Xueming Xu , Yaoqi Tian , Jie Long , Xing Zhou , Zhengjun Xie
Abstract: The disclosure provides a modified cyclodextrin/mesoporous silica for adsorbing Pb and Cd and application thereof, belonging to the technical field of adsorbent materials. By using surface modification, chloroacetic acid is used as anions, and a modified cyclodextrin is grafted onto a surface of a cyclodextrin/mesoporous silica by nucleophilic substitution to prepare the modified cyclodextrin/mesoporous silica adsorbent material. The modified cyclodextrin/mesoporous silica adsorbent material prepared in the disclosure has the advantages of simple preparation method, strong adsorbability, easy separation, good biocompatibility and the like. When the material is used as an adsorbent to adsorb heavy metal ions Pb2+ and Cd2+, maximum removal rates can reach 97.8% and 81.29% respectively. Therefore, the material has wide application prospects in removal of heavy metals in sewage and the like, thereby improving the water environment that people depend on for survival.
-
-
-
-
-
-
-
-
-
Search Results
11
records
(took 0.014 seconds)
