Shuaishuai Duan

Zhengzhou University of Light Industry

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Qinlan Jia

Xinjiang Academy of Agricultural Sciences

Cheng Wang

Hubei Engineering University

Yingying Fan

Jiamusi University

Fengjuan Liu

Xinjiang Academy of Agricultural Sciences

Qiaomei Qin

Guangdong Polytechnic Normal University

Hongbo Qiu

Zhengzhou University of Light Industry

Cunxiang Yang

Zhengzhou University of Light Industry

QIAO-MEI QIN

Jilin Agricultural University

Xiaofeng Zhao

Heilongjiang University

Rui Dai

Massachusetts General Hospital

Cooperative Institutions

Xinjiang Academy of Agricultural Sciences

Ministry of Agriculture and Rural Affairs

Institute of Quality Standards and Testing Technology for Agro Products

Xinjiang University

China University of Geosciences

Chinese Academy of Sciences

Huazhong University of Science and Technology

Zhengzhou University of Light Industry

Shanghai Jiao Tong University

Chinese Academy of Medical Sciences & Peking Union Medical College

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Implementation of the HACCP System for Apple Juice Concentrate Based on Patulin Prevention and Control

Foods (2023)

Shuaishuai Duan Fengjuan Liu Qiaomei Qin Qinlan Jia Xiaoqian Cao

Patulin (PAT) is a toxic secondary metabolite produced by Aspergillus sp. and Penicillium sp., which acts as a contaminant of most apples and their products. The internationally recognized HACCP system is selected as the theoretical basis to more effectively reduce the PAT in apple juice concentrate (AJC). Through field investigation of apple juice concentrate (AJC) production enterprises, we collected 117 samples from 13 steps of AJC production, including whole apple, apple pulp, and apple juice. PAT contents were analyzed via high-performance liquid chromatography (HPLC) and compared with samples from the different production processes. The result demonstrated that the PAT content was significantly (p < 0.05) influenced by five processes, receipt of raw apples, sorting of raw apples, adsorption step, pasteurization, and aseptic filling. These processes were determined as the CCPs. Monitoring systems for maintaining CCPs within acceptable limits were established, and corrective actions were proposed in case a CCP was surpassed. Based on the above-identified CCPs, critical limits, and control methods (corrective actions), a HACCP plan related to the production process of AJC was established. This study provided important guidance for juice manufacturers wishing to effectively control the PAT content in their products.

Patulin

Pasteurization

Aseptic processing

10.3390/foods12040786

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Citations (6)

The Potential of Alternaria Toxins Production by A. alternata in Processing Tomatoes

Toxins (2022)

QIAO-MEI QIN Yingying Fan Qinlan Jia Shuaishuai Duan Fengjuan Liu

As a filamentous and spoilage fungus, Alternaria spp. can not only infect processing tomatoes, but also produce a variety of mycotoxins which harm the health of human beings. To explore the production of Alternaria toxins in processing tomatoes during growth and storage, four main Alternaria toxins and four conjugated toxins were detected by ultrahigh-performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS) and ultra-performance liquid chromatography-ion mobility quadrupole time-of-flight mass spectrometry (UPLC-IMS QToF MS) in processing tomatoes on different days after being inoculated with A. alternata. The results show that the content of Alternaria toxins in an in vivo assay is higher than that under field conditions. Tenuazonic acid (TeA) is the predominant toxin detected in the field (205.86~41,389.19 μg/kg) and in vivo (7.64~526,986.37 μg/kg) experiments, and the second-most abundant toxin is alternariol (AOH). In addition, a small quantity of conjugated toxins, AOH-9-glucoside (AOH-9-Glc) and alternariol monomethyl ether-3-glucoside (AME-3-Glc), were screened in the in vivo experiment. This is the first time the potential of Alternaria toxins produced in tomatoes during the harvest period has been studied in order to provide data for the prevention and control of Alternaria toxins.

Alternariol

10.3390/toxins14120827

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Citations (15)

Effects of Bacillus amyloliquefaciens XJ-BV2007 on Growth of Alternaria alternata and Production of Tenuazonic Acid

Toxins (2023)

Qinlan Jia Yingying Fan Shuaishuai Duan Qiaomei Qin Yu Ding

Large amounts of processing tomato are grown in Xinjiang, China. Tomato black spot disease, caused by Alternaria spp., and the produced alternaria toxins in tomato products are posing risks to human health. In this study, we isolated a rhizospheric bacterium, XJ-BV2007, from tomato (Solanum lycopersicum) fields, which we identified as Bacillus amyloliquefaciens. We found that this bacterium has a strong antagonistic effect against Alternaria alternata and reduces the accumulation of alternaria toxins in tomatoes. According to the antifungal activity of the bacteria-free filtrate, we revealed that B. amyloliquefaciens XJ-BV2007 suppresses A. alternata by the production of antifungal metabolites. Combining semi-preparative high-performance liquid chromatography, we employed UPLC-QTOF-MS analysis and the Oxford cup experiment to find that fengycin plays an important role in inhibiting A. alternata. This paper firstly reported that B. amyloliquefaciens efficiently controls tomato black spot disease and mycotoxins caused by A. alternata. B. amyloliquefaciens XJ-BV2007 may provide an alternative biocontrol strain for the prevention of tomato black spot disease.

Bacillus amyloliquefaciens

Black spot

10.3390/toxins15010053

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Citations (11)

A method of reducing the cogging torque in a flux–torque regulation hybrid excitation machine with axial–radial magnetic circuit

Electrical Engineering (2023)

Hongbo Qiu Shuaishuai Duan Cunxiang Yang

Cogging torque

10.1007/s00202-023-02121-w

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Citations (1)

Design and optimization of a radial-axial hybrid excited machine with spoke-type permanent magnet rotor

Archives of Electrical Engineering (2024)

Hongbo Qiu Wenhao Gao Shuaishuai Duan

To further enhance the speed regulation range of the hybrid excited machine (HEM), the structure of a magnetic ring is optimized using a combination of the magnetic circuit method (MCM) and numerical analysis method in this paper, and a disc magnetic ring (DMR) is proposed. The magnetic density distribution of the proposed disc magnetic ring hybrid excited machine (DMRHEM) is compared to the radial-axial hybrid excited machine (RAHEM), and the superiority of alleviating a saturation problem in the proposed DMRHEM is determined. To improve the power density, the spoke-type permanent magnet (PM) rotor is applied. The influence of the proposed DMR on the HEM is analyzed, and the field adjustment capability of the proposed DMRHEM is better. Based on this, by combining the bypass principle, the analytical expressions for the relations between the rotor pole-pair number and the motor axial length/stator inner diameter (MAL/SID) as well as flux regulation capability are derived to further explore the superiority of the proposed DMRHEM. The influence mechanism of the rotor pole-pair number and the MAL/SID on the proposed DRMHEM is determined. The optimal MAL/SID and pole-pair number are obtained.

10.24425/aee.2024.149924

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The complete chloroplast genome of the first registered Paeonia Itoh hybrid cv. Hexie in China

Mitochondrial DNA Part B (2024)

Shuaishuai Duan Rui Dai Mingyang Hao Deny K. Shrestha Paul P. Dijkwel

The first registered Paeonia Itoh hybrid cv. Hexie in China is a naturally occurring intersectional hybrid of Sect. Paeonia and Sect. Moutan. In this study, we sequenced, assembled, and analyzed the complete chloroplast genome of Paeonia Itoh hybrid cv. Hexie. The result showed that the chloroplast genome of Hexie, with a typical circular tetrad structure, is 152,958 bp in length, comprising a large single copy (LSC) region of 84,613 bp, a small single copy (SSC) region of 17,051 bp, and two reverse complementary sequences (IRs) of 25,647 bp. The chloroplast genome encoded 116 genes, including 80 protein-coding genes, 32 tRNA genes, and 4 rRNA genes. Phylogenetic analysis inferred from the shared protein-coding genes showed that the Paeonia Itoh hybrid cv. Hexie had the closest phylogenetic relationship with P. suffruticosa, followed by P. ostii, indicating that P. suffruticosa was its maternal parent. This study provides a molecular resource for phylogenetic and maternal parent studies of Paeonia Itoh hybrid, contributing to a basis for Paeonia Itoh hybrid breeding strategies in the future.

Paeonia suffruticosa

Phylogenetic relationship

10.1080/23802359.2024.2368214

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Single-phase rare-earth high-entropy zirconates with superior thermal and mechanical properties

Journal of the European Ceramic Society (2022)

Xuewei Luo Lirong Luo Xiaofeng Zhao Huangyue Cai Shuaishuai Duan

Zirconate

Thermal Stability

10.1016/j.jeurceramsoc.2021.12.080

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Citations (79)

A method of reducing the cogging torque in a flux-torque regulation hybrid excitation machine with axial-radial magnetic circuit

Research Square (Research Square) (2023)

Hongbo Qiu Shuaishuai Duan Cunxiang Yang

Abstract In order to solve the problem of insufficient torque for flux weakening in permanent magnet machines, a novel flux-torque regulation hybrid excitation machine with axial-radial magnetic circuit (FTRHEM) is proposed. To solve the problem that the cogging torque of the proposed machine is caused by multiple factors and the coupling relationship is complicated, an analytical expression for the cogging torque is derived first. Then, the influence of the axial excitation device on the cogging torque is determined. The influence mechanism of the relative positions between the axial excitation device and stator on the cogging torque is revealed. A dislocation method is proposed to reduce the cogging torque, and its effectiveness is verified by the finite element analysis (FEA). Furthermore, the reduction of the cogging torque in FTRHEM with different pole-slot combinations by this method is comprised and analyzed, which demonstrates the feasibility of the method. Finally, the FEA results are combined with experiments to verify the accuracy of simulations.

Cogging torque

10.21203/rs.3.rs-3340242/v1

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