Jiangsu University

Jiyong Shi

Xiaobo Zou

Xiaowei Huang

Zhihua Li

Xuetao Hu

Xinai Zhang

Di Zhang

Zhiming Guo

Tingting Shen

Xiaodong Zhai

Junjun Zhang

Jiewen Zhao

Jianrong Cai

Quansheng Chen

Wei Sun

Xingyi Huang

Ning Zhang

Wenting Li

Yueying Wang

Yang Zhang

Hao Lin

Li Liu

Jing Liang

Bo Zhao

Chenguang Zhou

Yu Shi

Junwei Yu

Changsheng Qiao

Jiukai Zhang

Yongqiang Shi

Haijun Shi

Zongbao Sun

Bolin Shi

Jianbo Xiao

Yaodi Zhu

Chuang Li

Rong Xia

Jianing Zhang

Xueping Cui

Leliu Sun

Junyi Wang

Limei Yin

Yahui Li

Pei Jiang

Liuzi Du

Shaoyi Cen

Zhikun Yang

Xiaoping Yin

Zhengwei Chen

Lingqin Shen

Yushan Fan

Xiaoxia Sun

Maurizio Battino

Xiaoou Wei

Nini Liang

Xucheng Zhou

The present disclosure belongs to the technical field of rapid detection of foods, and relates to a preparation method and use of a metal-organic frameworks (MOFs)-based composite pretreatment material for eliminating capsaicin (CAP) interference. First, preparing an metal-organic frameworks suspension; adding ammonia water to an iron salt solution, centrifuging, washing, drying and redispersion to obtain a magnetic nanoparticle suspension; mixing with the metal-organic frameworks suspension and heating, centrifuging, washing, drying and redispersion to obtain a magnetic material-modified metal-organic frameworks solution; adding an amidated polysulfone solution, preparing the resulting mixed solution into a droplet, and solidifying the droplet in water to obtain the MOFs-based composite pretreatment material. The MOFs-based composite pretreatment material can be used in capsaicin interference-resistant detection of a numbing substance in a spicy hot pot soup base.

Preparation method and use of metal-organic frameworks (MOFs)-based composite pretreatment material for eliminating capsaicin (CAP) interference

The present disclosure belongs to the technical fields of nanoscience and fluorescence sensing, and specifically relates to a preparation method of a paper-based sensor for detecting an ammonia gas, and a use of the paper-based sensor. In the present disclosure, Zn(PA)(BPE) is first prepared, and a porous structure on a surface of the Zn(PA)(BPE) is used to adsorb an ammonia gas to improve a reaction sensitivity of the ammonia gas; then a Zn(PA)@CNQD ratiometric fluorescent substance is prepared from Zn(PA)(BPE) and CNQD through embedding, and finally dissolved in ultrapure water (UPW) to obtain a solution; and the solution is added dropwise on a filter paper, and the filter paper is purged with nitrogen, such that the solution is loaded on the filter paper to obtain a ratiometric fluorescent paper-based sensor.

Preparation method of paper-based sensor for detecting ammonia gas, and use of paper-based sensor

A method for preparing an antibacterial and fresh-keeping fruit-packaging material through three-dimensional (3D) printing includes the following steps: dissolving gum arabic and pullulan separately in deionized water to obtain a gum arabic solution and a pullulan solution; subjecting a probiotic to cultivation, centrifugation, and resuspension to obtain a bacterial suspension; mixing the bacterial suspension, the gum arabic solution, and the pullulan solution to obtain a core layer solution; mixing polyvinyl chloride, a modifier, and a plasticizer to obtain a shell layer solution; injecting the shell layer solution and the core layer solution into two syringes, respectively; conducting coaxial 3D printing to finally obtain a coaxial 3D printing product with a core-shell structure; and conducting uniaxial 3D printing with the shell layer solution alone to form an outer layer on the coaxial 3D printing product to obtain the antibacterial and fresh-keeping fruit-packaging material with inner and outer layers.

Method for preparing antibacterial and fresh-keeping fruit-packaging material through three-dimensional printing

A photoelectric detection model transfer and sharing method and an Internet of Things monitoring and evaluation system based on a cloud service are provided. The transfer and sharing method includes: invoking a temperature compensation model and a spectrum transfer model to calibrate spectrum information of agricultural product samples, and invoking a detection model to compute the calibrated spectrum information to obtain detection results of the agricultural product samples. The Internet of Things monitoring and evaluation system calibrates spectrum information by using a spectrum transfer and sharing method, invokes a detection model for computing, and returns detection results to a detection terminal in real time, thereby realizing remote monitoring and evaluation of the quality of agricultural products.

Photoelectric detection model transfer and sharing method and internet of things monitoring and evaluation system based on cloud service

The present invention belongs to the field of organophosphorus pesticide (OP) detection, and relates to a method for detecting an OP by a microfluidic chip based on a fluorescent sensing film. A porous fluorescent sensing film and the microfluidic chip are first constructed. The fluorescent sensing film is fabricated through layer-by-layer self-assembly of a platinum nanoparticle@oxalate-metal-organic framework (MOF) composite and a porous two-dimensional (2D) nanosheet, and has the functions of specifically detecting OPs and blocking macromolecular interferents. The microfluidic chip includes a sample channel, injection channels, reaction tanks, microfluidic channels, a detection tank, and an optical fiber channel, such that sample pretreatment and detection processes are integrated in the chip. An OP detection system is established by combining a portable constant-pressure syringe pump, a laser, a spectrometer, a signal transmitter, and a signal indicator, such that test devices are miniaturized and integrated and the OP detection is standardized.

Method for detecting organophosphorus pesticide by microfluidic chip based on fluorescent sensing film

In the present disclosure, a temperature-sensitive inner layer solution, a deformation intermediate layer solution, and a rigid outer layer solution are first prepared and spray-coated layer by layer on a surface of a fruit or vegetable, such that three preservative film layers are produced successively and can be used for the preservation of the fruit or vegetable.

Three-layer fruit or vegetable preservative film with temperature-controlled release under mechanical driving power, and preparation method thereof

The present invention relates to the technical field of identification on adulterated meat, and in particular, to a method for identifying raw meat and high-quality fake meat based on a gradual linear array change of a component. The present invention spatially characterizes changing rules of featured components in the meat with the utilization of sensitivities of the visible/near-infrared spectral signals to changes of the components in the meat and the advantage that spectral scanning can acquire optical signals of the samples spatially and consecutively, further constructs the identification model according to differences in components and spectra of a region of interest in the hyperspectral image by taking a derivative for characterizing rates of change of the featured components.

Method for identifying raw meat and high-quality fake meat based on gradual linear array change of component

The present invention belongs to the technical field of food processing, and in particular, relates to an adaptive quantitative sub-packaging method for fried rice with multiple side dishes in a central kitchen and an apparatus therefor. The present invention mainly includes self-construction of a key side dish recognition model, self-evaluation of the key side dish recognition model, adaptive quantification of batch fried rice, and the apparatus matched with the three-step operation.

Adaptive quantitative sub-packaging method for fried rice with multiple side dishes in central kitchen and apparatus therefor

A color sorting method for small-grain agricultural products combining an area scanning photoelectric characteristic and a line scanning photoelectric characteristic is provided. The present invention obtains an area scan image of small-grain agricultural product materials on a conveyor belt by using an area scan camera, which can accurately extract area array features of the materials and realize accurate identification of the unqualified materials. At the same time, the present invention can provide key parameters for accurate positioning during free falling of the materials while identifying the unqualified materials by using the area scan image, and can cooperate with the line scan positioning camera and the pneumatic nozzle to achieve high-speed elimination of the unqualified materials.

Color sorting method for small-grain agricultural products combining area scanning photoelectric characteristic and line scanning photoelectric characteristic

A method and a device for detecting plastic foreign objects with low chromaticity difference in shredded tobacco through online pulse spectral imaging are provided. The method includes three steps: negative pressure thin-layer loading of shredded tobacco, pulse line-scanning identification of shredded tobacco, and positive pressure online elimination of foreign objects. Loose shredded tobacco is formed into a fixed and continuous thin layer on a surface of a conveying cylinder under the effect of a negative pressure adsorption force. The surface of the conveying cylinder is coded by areas. An LED linear array light source containing characteristic wavelengths of plastics with low chromaticity difference emits optical pulses, and a line-scanning camera is used to obtain characteristic signals of the plastic foreign objects with low chromaticity difference efficiently in real time.

Method and device for detecting plastic foreign objects with low chromaticity difference in shredded tobacco through online pulse spectral imaging

Fluorescent test paper for detecting mercury ions is firstly prepared, the fluorescent test paper including a fluorescence development area and a standard fluorescent colorimetric card. With reference to an excited color corresponding to a reference channel in the standard colorimetric card, the color corresponding to a carbon quantum dots distribution area on the fluorescent test paper is observed to check the fluorescence detection environment during detection with the fluorescent test paper. In colorimetric detection of the content of mercury ions, the concentration of Hgis detected based on an excited color, in the standard colorimetric card, that corresponds to a standard mercury ion sample and is closest to a color signal in a copper nanoclusters distribution area on the fluorescent test paper.

Fluorescent test paper for detecting mercury ions and detection method using the same

Disclosed is a bacterial counting method, comprising the following steps, S1: preparing a polyaniline/bacterial composite film on the surface of a glassy carbon electrode by electric polymerization; S2: drawing the standard curve of the polyaniline/bacterial composite film modified electrode; and S3: determining the bacterial concentration of the bacteria solution sample to be tested according to the standard curve obtained in step S2. The method does not require the cultivation of the bacteria in the implementation process, such that same takes a short time and is easy to operate; the method uses aniline as the main reagent, and the consumption of the solution to be tested is small, such that the testing cost is low and the equipment is simple; the method has the advantages of a good repeatability and a wide detection linear range; and the method is an easy to operate, short time-consuming, and low cost bacterial counting method. The method is a bacterial counting method based on the polyaniline/bacterial composite film, and can achieve rapid and accurate detection of the bacterial thallus concentration.

Bacterial counting method

A method for optimizing a flight speed of a remotely-sensed scan imaging platform. The method comprises: selecting a reference point; obtaining a remotely-sensed scan image in a reference point region, and processing data; and optimizing a flight speed of a remotely-sensed scan platform. By optimizing a movement speed of a remotely-sensed movement platform, the method can prevent a geometric dimension of a target in a remotely-sensed scan image from being distorted, so as to obtain a high-precision remotely-sensed image of a ground target; and the method can be used for airborne and satellite borne remotely-sensed images.

Method for optimizing flight speed of remotely-sensed scan imaging platform

A multi-sensor based automatic brewing mass overturn machine comprising a moving module, a vinegar brewing mass information monitoring module, a system control module and a brewing mass overturn execution module is provided. The moving module comprises a moving motor, and the vinegar brewing mass information monitoring module comprises a vinegar brewing mass temperature and acidity information monitoring unit, a vinegar brewing mass smell information monitoring unit, and an overturned brewing mass appearance information monitoring unit. The system control module comprises a computer and a programmable controller, the computer being connected with a temperature sensor, an acidity sensor, a gas sensor array, a color camera and the programmable controller, respectively. The brewing mass overturn execution module comprises an overturn motor and brewing mass overturn motors.

Multi-sensor based automatic brewing mass overturn machine

A hyperspectral imaging light source system includes a light box (). The light box () is a sealed cuboid. In the chamber of the box body a line-scanning camera (), a beam splitting system (), an electric control translation platform carrier () and the object to be detected () on the electric control translation platform carrier, an electric control translation platform screw (), a linear light source box () and a photosensitive diode () are respectively provided. A linear light source controller (), a step motor () and a computer () are provided outside the box body. The photosensitive diode () senses linear light source intensity variation and inputs a feedback signal to the linear light source controller (). A halogen lamp () is installed in the linear light source box (), and is connected with the linear light source controller ().

Hyperspectral imaging light source system

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Jiangsu, China

Jiyong Shi