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Ye Y, Wu Q, Liu Y, He Y, Hu X, Zhang X, Zeng G. Alternaria alstroemeriae F1 inhibits aspergillus flavus growth and weakens aflatoxins biosynthesis. Fungal Genet Biol 2025:103989. [PMID: 40288483 DOI: 10.1016/j.fgb.2025.103989] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2025] [Revised: 04/18/2025] [Accepted: 04/22/2025] [Indexed: 04/29/2025]
Abstract
Aspergillus flavus is a saprophytic fungus that can infect economic crops and produce aflatoxins with high toxicity, carcinogenicity and mutagenicity, which is a serious threat to human and animal health. In order to find a more efficient biological control way to inhibit A. flavus and its production of aflatoxins, we isolated 7 fungal strains F1-F7 from Camellia sinensis. Only the strains F1 and F2, isolated from the flowers of C. sinensis and identified as Alternaria alstroemeriae and Alternaria burnsii, exhibited significant antagonistic activities against A. flavus. In addition, the contents of AFB1 and AFB2 significantly decreased when A. flavus was antagonized by Alternaria alstroemeriae F1. By the transcriptome and qRT-PCR analysis, some genes related to A. flavus growth and secondary metabolism were differentially expressed, and the expression levels of 14 genes in aflatoxins synthesis gene cluster that positively regulate aflatoxins synthesis all showed down-trends, and 2 genes (aflC and aflG) that negatively regulate aflatoxins synthesis showed up-trends. We hypothesize that the A. alstroemeriae F1 may secrete some secondary metabolites to inhibit the growth of A. flavus and decrease aflatoxins biosynthesis to a certain extent by regulating the expression levels of genes in aflatoxins biosynthesis gene cluster. In summary, this work lays a foundation for more effective biological controls against A. flavus growth and aflatoxins biosynthesis.
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Affiliation(s)
- Yingying Ye
- Zhejiang Province Key Laboratory of Plant Secondary Metabolism and Regulation, College of Life Science and Medicine, Zhejiang Sci-Tech University, 310018, Hangzhou, China
| | - Qiaoyun Wu
- Zhejiang Province Key Laboratory of Plant Secondary Metabolism and Regulation, College of Life Science and Medicine, Zhejiang Sci-Tech University, 310018, Hangzhou, China
| | - Yiran Liu
- Zhejiang Province Key Laboratory of Plant Secondary Metabolism and Regulation, College of Life Science and Medicine, Zhejiang Sci-Tech University, 310018, Hangzhou, China
| | - Yufan He
- Zhejiang Province Key Laboratory of Plant Secondary Metabolism and Regulation, College of Life Science and Medicine, Zhejiang Sci-Tech University, 310018, Hangzhou, China
| | - Xiufang Hu
- Zhejiang Province Key Laboratory of Plant Secondary Metabolism and Regulation, College of Life Science and Medicine, Zhejiang Sci-Tech University, 310018, Hangzhou, China
| | - Xiaodan Zhang
- Zhejiang Province Key Laboratory of Plant Secondary Metabolism and Regulation, College of Life Science and Medicine, Zhejiang Sci-Tech University, 310018, Hangzhou, China
| | - Guohong Zeng
- Zhejiang Province Key Laboratory of Plant Secondary Metabolism and Regulation, College of Life Science and Medicine, Zhejiang Sci-Tech University, 310018, Hangzhou, China.
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Zhang L, Huang H, Liao M, Luo C, Wu Q, Huang R, Liu H, Zhao X, Wang S. Ultrasensitive colorimetric immunoassay for aflatoxin B 1 detection in lotus seed powder based on enhanced catalysis of Au@Pt with in situ deposition of PtNPs. Food Chem X 2024; 24:102030. [PMID: 39670257 PMCID: PMC11635703 DOI: 10.1016/j.fochx.2024.102030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2024] [Revised: 11/08/2024] [Accepted: 11/20/2024] [Indexed: 12/14/2024] Open
Abstract
The enzyme-linked immunosorbent assay (ELISA) is a powerful and high-throughput method for detecting aflatoxin B1 (AFB1) in food. However, the susceptibility of native enzymes to environmental factors limits their potential applications. This study introduces the combined use of precious metal nanozymes as alternative catalysts to improve the performance of traditional ELISA. Au@Pt can be linked to antibodies to construct recognition probes, onto which platinum nanoparticles (PtNPs) are ingeniously deposited in situ to amplify the detection signal, thereby increasing the sensitivity. The proposed PtNP-enhanced Au@Pt-ELISA exhibited excellent resistance against matrix interference for AFB1 detection in lotus seed powder and achieved a detection limit of 1.6 pg/mL (0.32 μg/kg), which was approximately six times lower than that of traditional ELISA. Furthermore, the results of the proposed approach were strongly correlated with LC-MS/MS analysis results for real samples (r = 0.9888, n = 13). This study offers a new strategy for AFB1 monitoring in a complex matrix.
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Affiliation(s)
- Lei Zhang
- Key Laboratory of Digital Quality Evaluation of Traditional Chinese Medicine, National Administration of Traditional Chinese Medicine & Guangdong Provincial Traditional Chinese Medicine Quality Engineering and Technology Research Center, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Huiqiang Huang
- Key Laboratory of Digital Quality Evaluation of Traditional Chinese Medicine, National Administration of Traditional Chinese Medicine & Guangdong Provincial Traditional Chinese Medicine Quality Engineering and Technology Research Center, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Mengyao Liao
- Key Laboratory of Digital Quality Evaluation of Traditional Chinese Medicine, National Administration of Traditional Chinese Medicine & Guangdong Provincial Traditional Chinese Medicine Quality Engineering and Technology Research Center, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Chenghua Luo
- Key Laboratory of Digital Quality Evaluation of Traditional Chinese Medicine, National Administration of Traditional Chinese Medicine & Guangdong Provincial Traditional Chinese Medicine Quality Engineering and Technology Research Center, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Qiuyue Wu
- Key Laboratory of Digital Quality Evaluation of Traditional Chinese Medicine, National Administration of Traditional Chinese Medicine & Guangdong Provincial Traditional Chinese Medicine Quality Engineering and Technology Research Center, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Rentang Huang
- Key Laboratory of Digital Quality Evaluation of Traditional Chinese Medicine, National Administration of Traditional Chinese Medicine & Guangdong Provincial Traditional Chinese Medicine Quality Engineering and Technology Research Center, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Hongmei Liu
- cademy of National Food and Strategic Reserves Administration, No.11 Baiwanzhuang Str, Xicheng District, Beijing 100037, China
| | - Xiangsheng Zhao
- Hainan Provincial Key Laboratory of Resources Conservation and Development of Southern Medicine & Hainan Branch of the Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Haikou 570311, China
| | - Shumei Wang
- Key Laboratory of Digital Quality Evaluation of Traditional Chinese Medicine, National Administration of Traditional Chinese Medicine & Guangdong Provincial Traditional Chinese Medicine Quality Engineering and Technology Research Center, Guangdong Pharmaceutical University, Guangzhou 510006, China
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Li H, Peng L, Yin F, Fang J, Cai L, Zhang C, Xiang Z, Zhao Y, Zhang S, Sheng H, Wang D, Zhang X, Liang Z. Research on Coix seed as a food and medicinal resource, it's chemical components and their pharmacological activities: A review. JOURNAL OF ETHNOPHARMACOLOGY 2024; 319:117309. [PMID: 37858750 DOI: 10.1016/j.jep.2023.117309] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/09/2023] [Revised: 10/09/2023] [Accepted: 10/10/2023] [Indexed: 10/21/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Coix lacryma-jobi var. ma-yuen (Romanet du Caillaud) Stapf is a plant of the genus Coix in the Gramineae family. Coix seed is cultivated in various regions throughout China. In recent years, with the research on the medicinal value of Coix seed, it has received more and more widespread attention from people. Numerous pharmacological effects of Coix seed have been demonstrated through modern pharmacological studies, such as hypoglycemia, improving liver function, anti-tumor, regulating intestinal microbiota, improving spleen function, and anti-inflammatory effects. AIMS OF THE STUDY This article is a literature review. In recent years, despite the extensive research on Coix seed, there has yet to be a comprehensive review of its traditional usage, medicinal resources, chemical components, and pharmacological effects is still lacking. To fill this gap, the paper provides an overview of the latest research progress on Coix seed, aiming to offer guidance and references for its further development and comprehensive utilization. MATERIAL AND METHODS To gather information on the traditional usage, phytochemical ingredients, and pharmacological properties of Coix seed, we conducted a literature search using both Chinese and English languages in five databases: PubMed, Web of Science, China National Knowledge Infrastructure (CNKI), and Springer. RESULTS This article is a literature review. The chemical constituents of Coix seed include various fatty acids, esters, polysaccharides, sterols, alkaloids, triterpenes, tocopherols, lactams, lignans, phenols, flavonoids and other constituents. Modern pharmacological research has indeed shown that Coix seed has many pharmacological effects and is a natural anti-tumor drug. In addition to its anti-tumor effect, it also has pharmacological effects such as hypoglycemia, improving liver function, regulating intestinal microbiota, improving spleen function, and anti-inflammatory effects. CONCLUSIONS This article provides a brief overview of the traditional uses, biotechnological applications, chemical components, and pharmacological effects of Coix seed. It highlights the importance of establishing quality standards, discovering new active ingredients, and exploring pharmacological mechanisms in Coix seed research. The article also emphasizes the significance of clinical trials, toxicology studies, pharmacokinetics data, and multidisciplinary collaboration for further advancements in this field. Overall, it aims to enhance understanding of Coix seed and its potential in pharmaceutical development and wellness products.
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Affiliation(s)
- Hongju Li
- Key Laboratory of Plant Secondary Metabolism and Regulation of Zhejiang Province, College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou, 310018, China
| | - Lingxia Peng
- Key Laboratory of Plant Secondary Metabolism and Regulation of Zhejiang Province, College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou, 310018, China
| | - Feng Yin
- Key Laboratory of Plant Secondary Metabolism and Regulation of Zhejiang Province, College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou, 310018, China
| | - Jiahao Fang
- Key Laboratory of Plant Secondary Metabolism and Regulation of Zhejiang Province, College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou, 310018, China
| | - Lietao Cai
- R&D Center of Kanglaite, Hangzhou, 310018, China
| | | | - Zheng Xiang
- Medical School, Hangzhou City University, Hangzhou, 310015, China
| | - Yuyang Zhao
- State Key Lab Breeding Base Dao-Di Herbs, National Resource Center Chinese Materia Medica, Beijing, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Shuifeng Zhang
- Food Safety Key Laboratory of Zhejiang Province, Zhejiang Fangyuan Test Group Co., LTD, Hanghzou, 310018, China
| | - Huadong Sheng
- Food Safety Key Laboratory of Zhejiang Province, Zhejiang Fangyuan Test Group Co., LTD, Hanghzou, 310018, China
| | - Dekai Wang
- Key Laboratory of Plant Secondary Metabolism and Regulation of Zhejiang Province, College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou, 310018, China
| | - Xiaodan Zhang
- Key Laboratory of Plant Secondary Metabolism and Regulation of Zhejiang Province, College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou, 310018, China.
| | - Zongsuo Liang
- Key Laboratory of Plant Secondary Metabolism and Regulation of Zhejiang Province, College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou, 310018, China.
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Qiu T, Zhang H, Lei H, Zhang L, Zhang Y, Shen X, Xu B, Zhu J, Xiao W, Zheng J, Chen J. Preparation of Anti-Zearalenone IgY and Development of an Indirect Competitive ELISA Method for the Measurement of Zearalenone in Post-Fermented Tea. Foods 2023; 12:4478. [PMID: 38137282 PMCID: PMC10742412 DOI: 10.3390/foods12244478] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Revised: 12/05/2023] [Accepted: 12/11/2023] [Indexed: 12/24/2023] Open
Abstract
Post-fermented tea (PFT) is one of the most commonly consumed beverages worldwide. Rapid microbial growth and significant changes in the microbial composition of PFT during processing and storage pose a potential risk of contamination with mycotoxins such as zearalenone (ZEN). Screening for ZEN contamination in a simple, rapid, and inexpensive manner is required to ensure that PFT is safe for consumption. To monitor ZEN in PFT, ZEN was conjugated with bovine serum albumin to prepare egg yolk immunoglobulins (IgY). A specific indirect competitive enzyme-linked immunosorbent assay (ic-ELISA) based on IgY was developed and validated. ZEN was extracted with acetonitrile and water (50:50, v/v) containing 5% acetic acid and purified using a mixture of primary and secondary amines and graphitized carbon black to remove matrix interference from the PFT samples. Under optimal conditions, the linear range of this assay was 13.8-508.9 ng mL-1, the limit of detection was 9.3 ng mL-1, and the half-maximal inhibitory concentration was 83.8 ng mL-1. Cross-reactivity was negligible, and the assay was specific for ZEN-related molecules. The recovery rate of ZEN in the control blanks of PFT samples spiked with a defined concentration of ZEN of 89.5% to 98.0%. The recovery and accuracy of the method were qualified for PFT matrices. No significant differences were evident between the results of the actual PFT samples analyzed by high-performance liquid chromatography and ic-ELISA. The collective data indicate that the developed ic-ELISA can be used for the rapid and simple detection of ZEN in PFT products.
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Affiliation(s)
- Taotao Qiu
- College of Physical Education and Health, Guangxi Normal University, Guilin 541004, China; (T.Q.); (H.Z.); (L.Z.); (B.X.); (J.Z.); (W.X.); (J.Z.)
| | - Huayi Zhang
- College of Physical Education and Health, Guangxi Normal University, Guilin 541004, China; (T.Q.); (H.Z.); (L.Z.); (B.X.); (J.Z.); (W.X.); (J.Z.)
| | - Hongtao Lei
- Guangdong Provincial Key Laboratory of Food Quality and Safety, National-Local Joint Engineering Research Center for Machining and Safety of Livestock and Poultry Products, College of Food Science, South China Agricultural University, Guangzhou 510642, China; (H.L.); (Y.Z.); (X.S.)
| | - Lin Zhang
- College of Physical Education and Health, Guangxi Normal University, Guilin 541004, China; (T.Q.); (H.Z.); (L.Z.); (B.X.); (J.Z.); (W.X.); (J.Z.)
| | - Yaqiong Zhang
- Guangdong Provincial Key Laboratory of Food Quality and Safety, National-Local Joint Engineering Research Center for Machining and Safety of Livestock and Poultry Products, College of Food Science, South China Agricultural University, Guangzhou 510642, China; (H.L.); (Y.Z.); (X.S.)
| | - Xing Shen
- Guangdong Provincial Key Laboratory of Food Quality and Safety, National-Local Joint Engineering Research Center for Machining and Safety of Livestock and Poultry Products, College of Food Science, South China Agricultural University, Guangzhou 510642, China; (H.L.); (Y.Z.); (X.S.)
| | - Biyun Xu
- College of Physical Education and Health, Guangxi Normal University, Guilin 541004, China; (T.Q.); (H.Z.); (L.Z.); (B.X.); (J.Z.); (W.X.); (J.Z.)
| | - Jialin Zhu
- College of Physical Education and Health, Guangxi Normal University, Guilin 541004, China; (T.Q.); (H.Z.); (L.Z.); (B.X.); (J.Z.); (W.X.); (J.Z.)
| | - Wentao Xiao
- College of Physical Education and Health, Guangxi Normal University, Guilin 541004, China; (T.Q.); (H.Z.); (L.Z.); (B.X.); (J.Z.); (W.X.); (J.Z.)
| | - Jixu Zheng
- College of Physical Education and Health, Guangxi Normal University, Guilin 541004, China; (T.Q.); (H.Z.); (L.Z.); (B.X.); (J.Z.); (W.X.); (J.Z.)
| | - Jiahong Chen
- Guangdong Provincial Key Laboratory of Food Quality and Safety, National-Local Joint Engineering Research Center for Machining and Safety of Livestock and Poultry Products, College of Food Science, South China Agricultural University, Guangzhou 510642, China; (H.L.); (Y.Z.); (X.S.)
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Giussani B, Riu J. Biosensors and Smart Analytical Systems in Food Quality and Safety: Status and Perspectives. Foods 2023; 12:2292. [PMID: 37372503 DOI: 10.3390/foods12122292] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Accepted: 06/02/2023] [Indexed: 06/29/2023] Open
Abstract
The primary focus of research in food production revolves around ensuring food quality and safety [...].
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Affiliation(s)
- Barbara Giussani
- Dipartimento di Scienza e Alta Tecnologia, Università degli Studi dell'Insubria, Via Valleggio 9, 22100 Como, Italy
| | - Jordi Riu
- Department of Analytical Chemistry and Organic Chemistry, Universitat Rovira i Virgili, 43007 Tarragona, Spain
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Simultaneous Determination of Neonicotinoid and Carbamate Pesticides in Freeze-Dried Cabbage by Modified QuEChERS and Ultra-Performance Liquid Chromatography-Tandem Mass Spectrometry. Foods 2023; 12:foods12040699. [PMID: 36832774 PMCID: PMC9955598 DOI: 10.3390/foods12040699] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2022] [Revised: 01/30/2023] [Accepted: 02/01/2023] [Indexed: 02/08/2023] Open
Abstract
Dehydrated vegetables are popular in instant foods, but few reports have focused on their pesticide residues. This research developed and validated a modified QuEChERS method combined with ultra-performance liquid chromatography-tandem mass spectrometry to determine 19 kinds of neonicotinoid and carbamate pesticides in freeze-dried cabbage. Herein, acetonitrile/water (v/v = 2:1) was selected in the extraction step. Meanwhile, 4 g anhydrous magnesium sulfate and 1 g sodium chloride were applied to the partitioning step. Dispersive solid-phase extraction sorbents were selected, and liquid chromatography conditions were further optimized for dealing with the matrix effect. The limits of quantification ranged from 1.0 to 10.0 μg/kg. The validation results were acceptable, with average recoveries of 78.7-114.0% and relative standard deviations below 14.2%. The method recoveries were closely related to the volume proportion of water in the extractant. Finally, the developed method was applied to real freeze-dried cabbages and four pesticides (propamocarb, imidacloprid, acetamiprid, and thiacloprid) were detected in six samples.
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A bifunctional AuNP probe-based enzyme-linked immunosorbent assay for facile and ultrasensitive detection of trace zearalenone in coix seed. Microchem J 2022. [DOI: 10.1016/j.microc.2022.108152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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