1
|
Rodrigues JTD, Margalho LP, Pia AKR, Sierra H, Tavares L, Marquezini MG, Noronha MF, Cabral L, Junior WJFL, Sant'Ana AS. Comprehensive dynamics of bacterial and fungal diversity throughout concentrated chicken broth processing: Integrating culture-dependent and independent techniques. Int J Food Microbiol 2024; 424:110852. [PMID: 39141974 DOI: 10.1016/j.ijfoodmicro.2024.110852] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2024] [Revised: 07/30/2024] [Accepted: 07/31/2024] [Indexed: 08/16/2024]
Abstract
This study presents comprehensive insights into the microbiological profile across all concentrated chicken broth processing stages, utilizing a combination of amplicon sequencing based on metataxonomic and culturing techniques. Samples were systematically collected throughout the production chain, with each batch yielding 10 samples per day across eight different dates. These samples underwent thorough analysis, including 16S rRNA and ITS sequencing (n = 30), culture-dependent microbiological tests (n = 40), and physical-chemical characterization (n = 10). Culturing analysis revealed the absence of Listeria monocytogenes and Salmonella spp. at any stage of processing, counts of various microorganisms such as molds, yeasts, Enterobacteria, and others remained below detection limits. Notably, spore counts of selected bacterial groups were observed post-processing, indicating the persistence of certain species, including Bacillus cereus and Clostridium perfringens, albeit in low counts. Furthermore, the study identified a diverse array of bacterial and fungal species throughout the processing chain, with notable occurrence of spore-forming bacteria. The presence of spore-forming bacteria in the final product, despite thermal processing, suggests the need for enhanced strategies to mitigate their introduction and persistence in the processing premises. Thus, this study offers valuable insights into microbial dynamics and diversity through processing concentrated chicken broth.
Collapse
Affiliation(s)
- José T D Rodrigues
- Department of Food Science and Nutrition, Faculty of Food Engineering, University of Campinas, Campinas, São Paulo, Brazil
| | - Larissa P Margalho
- Department of Food Science and Nutrition, Faculty of Food Engineering, University of Campinas, Campinas, São Paulo, Brazil
| | - Arthur K R Pia
- Department of Food Science and Nutrition, Faculty of Food Engineering, University of Campinas, Campinas, São Paulo, Brazil
| | - Héctor Sierra
- Department of Food Science and Nutrition, Faculty of Food Engineering, University of Campinas, Campinas, São Paulo, Brazil
| | - Louise Tavares
- Department of Food Science and Nutrition, Faculty of Food Engineering, University of Campinas, Campinas, São Paulo, Brazil
| | - Míriam G Marquezini
- Department of Food Science and Nutrition, Faculty of Food Engineering, University of Campinas, Campinas, São Paulo, Brazil
| | - Melline Fontes Noronha
- Research Informatics Core, Research Resource Center, University of Illinois at Chicago, Chicago, IL, USA
| | - Lucélia Cabral
- Institute of Biological Sciences, University of Brasília, Brasília, DF, Brazil
| | | | - Anderson S Sant'Ana
- Department of Food Science and Nutrition, Faculty of Food Engineering, University of Campinas, Campinas, São Paulo, Brazil.
| |
Collapse
|
2
|
Zhang J, Lu Z, Feng L, Qu D, Zhu J. Identification of microbial communities and multi-species biofilms contamination in seafood processing environments with different hygiene conditions. Food Microbiol 2024; 122:104553. [PMID: 38839233 DOI: 10.1016/j.fm.2024.104553] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2024] [Revised: 04/15/2024] [Accepted: 04/19/2024] [Indexed: 06/07/2024]
Abstract
Biofilms formed by spoilage and pathogenic bacteria increase microbial persistence, causing an adverse influence on the quality of seafood. The mono-species biofilms are widely reported, however, the contamination of multi-species biofilms and their matrix in food environments are still not fully understood. Here, we assessed the contamination of multi-species biofilms in three seafood processing environments with different hygiene levels by detecting bacterial number and three biofilm matrix components (carbohydrates, extracellular DNA (eDNA), and proteins). Samples comprising seven food matrix surfaces and eight food processing equipment surfaces were collected from two seafood processing plants (XY and XC) and one seafood market (CC). The results showed that the bacterial counts ranged from 1.89 to 4.91 CFU/cm2 and 5.68 to 9.15 BCE/cm2 in these surfaces by cultivation and real-time PCR, respectively. Six biofilm hotspots were identified, including four in CC and two in XY. Among the three processing environments, the amplicon sequence variants (ASVs) of Proteobacteria, Bacteroidetes, and Actinobacteria decreased with improved processing hygiene, while Firmicutes showed a decrease in the four most abundant phyla. The most prevalent bacteria belonged to genera Psychrobacter, Acinetobacter, and Pseudomonas, demonstrating the significant differences and alteration in bacterial community composition during different environments. From the biofilm hotspots, 15 isolates with strong biofilm forming ability were identified, including 7 Pseudomonas, 7 Acinetobacter, and 1 Psychrobacter. The Pseudomonas isolates exhibited the highest production of EPS components and three strong motilities, whose characteristics were positively correlated. Thus, this study verified the presence of multi-species biofilms in seafood processing environments, offering preliminary insights into the diversity of microbial communities during processing. It highlights potential contamination sources and emphasizes the importance of understanding biofilms composition to control biofilms formation in seafood processing environments.
Collapse
Affiliation(s)
- Jun Zhang
- College of Food Science and Biotechnology, Food Safety Key Laboratory of Zhejiang Province, Zhejiang Gongshang University, Hangzhou, Zhejiang, 310018, China
| | - Zhong Lu
- College of Food Science and Biotechnology, Food Safety Key Laboratory of Zhejiang Province, Zhejiang Gongshang University, Hangzhou, Zhejiang, 310018, China
| | - Lifang Feng
- College of Food Science and Biotechnology, Food Safety Key Laboratory of Zhejiang Province, Zhejiang Gongshang University, Hangzhou, Zhejiang, 310018, China
| | - Daofeng Qu
- College of Food Science and Biotechnology, Food Safety Key Laboratory of Zhejiang Province, Zhejiang Gongshang University, Hangzhou, Zhejiang, 310018, China
| | - Junli Zhu
- College of Food Science and Biotechnology, Food Safety Key Laboratory of Zhejiang Province, Zhejiang Gongshang University, Hangzhou, Zhejiang, 310018, China.
| |
Collapse
|
3
|
Chincha AAIA, Marone MP, Pia AKR, Freire L, Amorim-Neto DP, Carazzolle MF, Sant'Ana AS. Phenotypic, genotypic, and resistome of mesophilic spore-forming bacteria isolated from pasteurized liquid whole egg. Food Res Int 2024; 184:114215. [PMID: 38609213 DOI: 10.1016/j.foodres.2024.114215] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Revised: 02/22/2024] [Accepted: 03/06/2024] [Indexed: 04/14/2024]
Abstract
The production of whole-liquid eggs is of significant economic and nutritional importance. This study aimed to assess the phenotypic and genotypic diversity of mesophilic aerobic spore-forming bacteria (n = 200) isolated from pasteurized whole liquid egg and liquid egg yolk. The majority of the isolates were identified as belonging to the genera Bacillus (86 %), followed by Brevibacillus (10 %) and Lysinibacillus (4 %). For the phenotypic characterization, isolates were subjected to various heat shocks, with the most significant reductions observed at 80 °C/30 min and 90 °C/10 min for isolates recovered from raw materials. On the other hand, the decrease was similar for isolates recovered from raw material and final product at 100 °C/5 min and 110 °C/5 min. Genotypic genes related to heat resistance (cdnL, spoVAD, dacB, clpC, dnaK, and yitF/Tn1546) were examined for genotypic characterization. The dnaK gene showed a positive correlation with the highest thermal condition tested (110 °C/5 min), while 100 °C/5 min had the highest number of positively correlated genes (clpC, cdnL, yitF/Tn1546, and spoVAD). Whole Genome Sequencing of four strains revealed genes related to sporulation, structure formation, initiation and regulation, stress response, and DNA repair in vegetative cells. The findings of this study indicate that these mesophilic aerobic spore-forming bacteria may adopt several strategies to persist through the process and reach the final product. As the inactivation of these microorganisms during egg processing is challenging, preventing raw materials contamination and their establishment in processing premises must be reinforced.
Collapse
Affiliation(s)
- Alexandra A I A Chincha
- Department of Food Science and Nutrition, Faculty of Food Engineering, University of Campinas, Campinas, SP, Brazil
| | - Marina P Marone
- Laboratory of Genomics and BioEnergy, Department of Genetics, Evolution, Microbiology and Immunology, University of Campinas, Campinas, SP, Brazil
| | - Arthur K R Pia
- Department of Food Science and Nutrition, Faculty of Food Engineering, University of Campinas, Campinas, SP, Brazil
| | - Luisa Freire
- Faculty of Pharmaceutical Sciences, Food and Nutrition, Federal University of Mato Grosso do Sul. Campo Grande, Mato Grosso do Sul, Brazil
| | - Dionisio P Amorim-Neto
- Department of Food Science and Nutrition, Faculty of Food Engineering, University of Campinas, Campinas, SP, Brazil
| | - Marcelo F Carazzolle
- Laboratory of Genomics and BioEnergy, Department of Genetics, Evolution, Microbiology and Immunology, University of Campinas, Campinas, SP, Brazil; Center for Computing and Engineering Sciences, University of Campinas, Campinas, SP, Brazil
| | - Anderson S Sant'Ana
- Department of Food Science and Nutrition, Faculty of Food Engineering, University of Campinas, Campinas, SP, Brazil.
| |
Collapse
|
4
|
Dai D, Qi GH, Wang J, Zhang HJ, Qiu K, Wu SG. Intestinal microbiota of layer hens and its association with egg quality and safety. Poult Sci 2022; 101:102008. [PMID: 35841638 PMCID: PMC9289868 DOI: 10.1016/j.psj.2022.102008] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2022] [Revised: 06/05/2022] [Accepted: 06/08/2022] [Indexed: 12/27/2022] Open
Abstract
The intestinal microbiota has attracted tremendous attention in the field of the poultry industry due to its critical role in the modulation of nutrient utilization, immune system, and consequently the improvement of the host health and production performance. Accumulating evidence implies intestinal microbiota of laying hens is a potential mediator to improve the prevalent issues in terms of egg quality decline in the late phase of laying production. However, the regulatory effect of intestinal microbiota on egg quality in laying hens remains elusive, which requires consideration of microbial baseline composition and succession during their long lifespans. Notable, although Firmicutes, Bacteroidetes, and Proteobacteria form the vast majority of intestinal microbiota in layer hens, dynamic intestinal microbiota succession occurs throughout all laying periods. In addition to the direct effects on egg safety, intestinal microbiota and its metabolites such as short-chain fatty acids, bile acids, and tryptophan derivatives, are suggested to indirectly modulate egg quality through the microbiota-gut-liver/brain-reproductive tract axis. These findings can extend our understanding of the crosstalk between intestinal microbiota and the host to improve egg quality and safety. This paper reviews the compositions of intestinal microbiota in different physiological stages of laying hens and their effects on egg quality and proposes that intestinal microbiota may become a potential target for modulating egg quality and safety by nutritional strategies in the future.
Collapse
Affiliation(s)
- Dong Dai
- Laboratory of Quality & Safety Risk Assessment for Animal Products on Feed Hazards (Beijing) of the Ministry of Agriculture & Rural Affairs, Institute of Feed Research, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Guang-Hai Qi
- Laboratory of Quality & Safety Risk Assessment for Animal Products on Feed Hazards (Beijing) of the Ministry of Agriculture & Rural Affairs, Institute of Feed Research, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Jing Wang
- Laboratory of Quality & Safety Risk Assessment for Animal Products on Feed Hazards (Beijing) of the Ministry of Agriculture & Rural Affairs, Institute of Feed Research, Chinese Academy of Agricultural Sciences, Beijing 100081, China.
| | - Hai-Jun Zhang
- Laboratory of Quality & Safety Risk Assessment for Animal Products on Feed Hazards (Beijing) of the Ministry of Agriculture & Rural Affairs, Institute of Feed Research, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Kai Qiu
- Laboratory of Quality & Safety Risk Assessment for Animal Products on Feed Hazards (Beijing) of the Ministry of Agriculture & Rural Affairs, Institute of Feed Research, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Shu-Geng Wu
- Laboratory of Quality & Safety Risk Assessment for Animal Products on Feed Hazards (Beijing) of the Ministry of Agriculture & Rural Affairs, Institute of Feed Research, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| |
Collapse
|
5
|
Mezian L, Chincha AI, Vecchione A, Ghelardi E, Bonatto JMC, Marsaioli AJ, Campelo PH, Benamar I, Allah MA, Sant'Ana AS, Boumediene MB. Aerobic spore-forming bacteria in powdered infant formula: Enumeration, identification by MALDI-TOF mass spectrometry (MS), presence of toxin genes and rpoB gene typing. Int J Food Microbiol 2022; 368:109613. [DOI: 10.1016/j.ijfoodmicro.2022.109613] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 12/28/2021] [Accepted: 03/04/2022] [Indexed: 11/16/2022]
|
6
|
Scudino H, Guimarães JT, Cabral L, Centurion VB, Gomes A, Orsi AS, Cunha RL, Sant’Ana AS, Cruz AG. Raw milk processing by high‐intensity ultrasound and conventional heat treatments: Microbial profile by amplicon sequencing and physical stability during storage. INT J DAIRY TECHNOL 2021. [DOI: 10.1111/1471-0307.12819] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- Hugo Scudino
- Department of Food Technology Faculty of Veterinary Fluminense Federal University Niterói RJ Brazil
| | - Jonas T Guimarães
- Department of Food Technology Faculty of Veterinary Fluminense Federal University Niterói RJ Brazil
| | - Lucélia Cabral
- Department of General and Applied Biology Institute of Biosciences São Paulo State University (UNESP) Rio Claro SP Brazil
| | - Victor Borin Centurion
- Microbial Resources Division (DRM), Research Center for Chemistry Biology and Agriculture (CPQBA) University of Campinas Campinas SP Brazil
| | - Andresa Gomes
- Department of Food Engineering and Technology Faculty of Food Engineering University of Campinas Campinas SP Brazil
| | - Arthur S Orsi
- Department of Food Technology Faculty of Veterinary Fluminense Federal University Niterói RJ Brazil
- Department of Food Science and Nutrition Faculty of Food Engineering University of Campinas Campinas SP Brazil
| | - Rosiane L Cunha
- Department of Food Engineering and Technology Faculty of Food Engineering University of Campinas Campinas SP Brazil
| | - Anderson S Sant’Ana
- Department of Food Science and Nutrition Faculty of Food Engineering University of Campinas Campinas SP Brazil
| | - Adriano G Cruz
- Department of Food Federal Institute of Science and Technology of Rio de Janeiro Rio de Janeiro RJ Brazil
| |
Collapse
|
7
|
The inhibition of cell-free supernatants of several lactic acid bacteria on the selected psychrophilic spoilage bacteria in liquid whole egg. Food Control 2021. [DOI: 10.1016/j.foodcont.2020.107753] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
8
|
|
9
|
|
10
|
Brandão LR, de Brito Alves JL, da Costa WKA, Ferreira GDAH, de Oliveira MP, Gomes da Cruz A, Braga VDA, Aquino JDS, Vidal H, Noronha MF, Cabral L, Pimentel TC, Magnani M. Live and ultrasound-inactivated Lacticaseibacillus casei modulate the intestinal microbiota and improve biochemical and cardiovascular parameters in male rats fed a high-fat diet. Food Funct 2021; 12:5287-5300. [PMID: 34009228 DOI: 10.1039/d1fo01064f] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
This study aimed to evaluate the effects of ingestion of live (9 log CFU mL-1) and ultrasound-inactivated (paraprobiotic, 20 kHz, 40 min) Lacticaseibacillus casei 01 cells for 28 days on healthy parameters (biochemical and cardiovascular) and intestinal microbiota (amplicon sequencing of 16S ribosomal RNA) of rats fed a high-fat diet. Twenty-four male Wistar rats were divided into four groups of six animals: CTL (standard diet), HFD (high-fat diet), HFD-LC (high-fat diet and live L. casei), and HFD-ILC (high-fat diet and inactivated L. casei). The administration of live and ultrasound-inactivated L. casei prevented the increase (p < 0.05) in cholesterol levels (total and LDL) and controlled the insulin resistance in rats fed a high-fat diet. Furthermore, it promoted a modulation of the intestinal microbial composition by increasing (p < 0.05) beneficial bacteria (Lachnospiraceae and Ruminoccocaceae) and decreasing (p < 0.05) harmful bacteria (Clostridiaceae, Enterobacteriaceae, and Helicobacteriacea), attenuating the effects promoted by the HFD ingestion. Only live cells could increase (p < 0.05) the HDL-cholesterol, while only inactivated cells caused attenuation (p < 0.05) of the blood pressure. Results show beneficial effects of live and inactivated L. casei 01 and indicate that ultrasound inactivation produces a paraprobiotic with similar or improved health properties compared to live cells.
Collapse
Affiliation(s)
- Larissa Ramalho Brandão
- Department of Food Engineering, Technology, Federal University of Paraíba, João Pessoa, Brazil.
| | - José Luiz de Brito Alves
- Department of Nutrition, Health Sciences Center, Federal University of Paraiba, Joao Pessoa, Brazil
| | | | | | | | - Adriano Gomes da Cruz
- Department of Food, Federal Institute of Science and Technology of Rio de Janeiro, Rio de Janeiro, Rio de Janeiro, Brazil
| | - Valdir de Andrade Braga
- Department of Biotechnology, Biotechnology Center Federal University of Paraíba, João Pessoa, Brazil
| | - Jailane de Souza Aquino
- Department of Nutrition, Health Sciences Center, Federal University of Paraiba, Joao Pessoa, Brazil
| | - Hubert Vidal
- Univ-Lyon, CarMeN (Cardio, Metabolism, Diabetes and Nutrition) Laboratory, INSERM, INRAE, Université Claude Bernard Lyon 1, INSA Lyon, Oullins, France
| | - Melline Fontes Noronha
- Research Informatics Core, Research Resource Center, University of Illinois at Chicago, Chicago, IL, USA
| | - Lucélia Cabral
- Institute of Biosciences, Department of General and Applied Biology, São Paulo State University, Rio Claro, SP, Brazil
| | | | - Marciane Magnani
- Department of Food Engineering, Technology, Federal University of Paraíba, João Pessoa, Brazil.
| |
Collapse
|
11
|
Dietary xylanase and live yeast supplementation influence intestinal bacterial populations and growth performance of piglets fed a sorghum-based diet. ACTA ACUST UNITED AC 2020; 6:457-466. [PMID: 33364462 PMCID: PMC7750802 DOI: 10.1016/j.aninu.2020.05.005] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2019] [Revised: 03/12/2020] [Accepted: 05/17/2020] [Indexed: 11/27/2022]
Abstract
This study was to evaluate the effect of xylanase supplementation and the addition of live yeast, Saccharomyces cerevisiae, on growth performance and intestinal microbiota in piglets. One hundred and eighty commercial crossbred 23-d-old piglets (PIC 417) were sorted by initial BW and allocated to 3 treatments: control (CTR) diet, CTR diet supplemented with xylanase at 16,000 birch xylan units/kg (XYL) and XYL diet supplemented with live yeast (2 × 1010 CFU/g) at 1 kg/t (XYL + LY). Each treatment had 10 replicates, with 6 animals each. A sorghum-based diet and water were available ad libitum for 42 d of the study. Average daily gain (ADG) and average daily feed intake (ADFI) were measured from 0 to 42 d (23- to 65-d-old) and feed conversion ratio (FCR) calculated. At the end of the study, bacterial identification through 16S rRNA (V3 to V4) sequencing of the ileal and caecal digesta from one piglet per replicate was performed. No treatment effects were observed on ADFI. Pigs offered the live yeast in addition to the xylanase had increased ADG compared with those supplemented with xylanase alone (XYL + LY vs. XYL; P = 0.655). FCR was improved with XYL and XYL + LY compared with CTR (P = 0.018). Clostridiaceae counts in the ileum tended to reduce by 10% with XYL and 14% with XYL + LY compared to CTR (P = 0.07). XYL and XYL + LY increased the counts of Lactobacillaceae in the caecum compared with CTR (P < 0.0001). Dietary supplementation of live yeast combined with xylanase improved growth performance and microbial balance of piglets during the nursery phase.
Collapse
|
12
|
High-throughput sequencing approach to reveal the bacterial diversity of traditional yak jerky from the Tibetan regions. Meat Sci 2020; 172:108348. [PMID: 33120176 DOI: 10.1016/j.meatsci.2020.108348] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2020] [Revised: 07/09/2020] [Accepted: 10/13/2020] [Indexed: 11/23/2022]
Abstract
A high-throughput sequencing approach was used to investigate the bacterial community diversity of traditional Tibetan yak jerky, which was collected from three different regions in Tibet and with different natural drying times. Tibetan yak jerky from different regions had different bacterial communities, which was mainly reflected in the relative abundance levels of unclassified Cyanobacteria, Psychrobacter and Acinetobacter. The unclassified Cyanobacteria was the dominant genus of Qamdo yak jerky, Acinetobacter was the dominant genus of Shigatse yak jerky, and Psychrobacteria was the dominant genus of Nyingchi yak jerky. With increasing natural drying time, the diversity of bacterial communities in yak jerky decreased, and unclassified Cyanobacteria become the dominant genus. Spearman's correlation analysis and canonical correspondence analysis revealed that physicochemical factors (moisture content, water activity, shear force and pH) were significantly correlated with bacterial community. Our results will be beneficial to improve and standardize the safety and quality of traditional Tibetan yak jerky.
Collapse
|
13
|
Shi Y, Wu S, Li W, Liu D, Ma G, Zhang Z, Yuan L, Li H, Zhang S, Mushtaq N, Xu J. Microbiota Analysis of Eggshells in Different Areas and During Different Storage Time by Non-cultural Methods. Curr Microbiol 2020; 77:3842-3850. [PMID: 32959090 DOI: 10.1007/s00284-020-02212-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2020] [Accepted: 09/13/2020] [Indexed: 10/23/2022]
Abstract
This study is to investigate and characterize the microbiota composition on eggshells from 3 different areas of Shaanxi province (Yulin, Hanzhong and Xi'an). The eggs were stored at 25 °C for 56 days and bacterial samples were collected from eggshells on day 0, 14, 28, 42 and 56. Denaturing gradient gel electrophoresis and high-throughput sequencing of 16S rRNA hypervariable region V3-V4 were performed. Alpha diversity was applied for analyzing the diversity of samples through 6 indices, including Observed-species, Chao1, Shannon, Simpson, ACE and Good's-coverage. Beta diversity was used to study the similarities or differences in the community composition of the samples. Totally, 36 phyla and 595 genera were classified by 16S rRNA gene sequencing. The composition of the microbial communities of different regions was quite different. Firmicutes (33-38% of total phyla) and Actinobacteria (36-61% of total phyla) were the most abundant phyla in all three regions. Proteobacteria were relatively more abundant (about 18% of total phyla) on eggs from Hanzhong. During storage time, the microbial communities mainly changed from Firmicutes to Actinobacteria on eggs from Yulin and Xi'an. Lactobacillus, Kocuria and Streptomyces were much higher at the genus level. Spoilage bacteria Staphylococcus, Streptococcus, Pseudomonas and Enterococcus were detected at the genus level. Campylobacter jejuni (< 1% of total bacteria), which might be related to human illness, was also detected. In conclusion, the structure, abundance, and composition of microbiota on eggshells differ among areas. The microbiota changed regularly during storage time. The current study may offer a new insight into bacterial species on eggshells.
Collapse
Affiliation(s)
- Yi Shi
- Department of Microbiology and Immunology, School of Medicine, Xi'an Jiaotong University, No. 76 Yanta West Road, Xi'an, 710061, Shaanxi, China.,Shaanxi Center for Disease Control and Prevention, Xi'an, 710054, Shaanxi, China
| | - Songwen Wu
- Department of Public Health, Xi'an Medical University, Xi'an, 710021, Shaanxi, China
| | - Wenjuan Li
- Shaanxi Center for Disease Control and Prevention, Xi'an, 710054, Shaanxi, China
| | - Dongli Liu
- Shaanxi Center for Disease Control and Prevention, Xi'an, 710054, Shaanxi, China
| | - Guozhu Ma
- Shaanxi Center for Disease Control and Prevention, Xi'an, 710054, Shaanxi, China
| | - Zheng Zhang
- Shaanxi Center for Disease Control and Prevention, Xi'an, 710054, Shaanxi, China
| | - Lu Yuan
- Department of Microbiology and Immunology, School of Medicine, Xi'an Jiaotong University, No. 76 Yanta West Road, Xi'an, 710061, Shaanxi, China
| | - Huan Li
- Department of Microbiology and Immunology, School of Medicine, Xi'an Jiaotong University, No. 76 Yanta West Road, Xi'an, 710061, Shaanxi, China
| | - Siruo Zhang
- Department of Microbiology and Immunology, School of Medicine, Xi'an Jiaotong University, No. 76 Yanta West Road, Xi'an, 710061, Shaanxi, China
| | - Nosheen Mushtaq
- Department of Microbiology and Immunology, School of Medicine, Xi'an Jiaotong University, No. 76 Yanta West Road, Xi'an, 710061, Shaanxi, China
| | - Jiru Xu
- Department of Microbiology and Immunology, School of Medicine, Xi'an Jiaotong University, No. 76 Yanta West Road, Xi'an, 710061, Shaanxi, China.
| |
Collapse
|
14
|
Wang J, Gu L, Su Y, Chang C, Xu L, Yang Y, Li J. Changes in microbial, physiochemical, and functional properties of pasteurized liquid whole egg during refrigerated storage. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2020; 100:2873-2879. [PMID: 32020609 DOI: 10.1002/jsfa.10311] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Revised: 01/28/2020] [Accepted: 02/05/2020] [Indexed: 06/10/2023]
Abstract
BACKGROUND Liquid eggs have the advantages of high hygiene security, easy use, and convenient transportation, but their shelf life is only limited to 2~3 weeks. The microbial, physiochemical, and functional properties of pasteurized LWE were investigated in this study to evaluate the quality of pasteurized liquid whole egg (LWE) during refrigerated storage. RESULTS The tested shelf life of the pasteurized LWE was 16 days when stored at 4 °C. During refrigerated storage, Pseudomonas gradually became the dominant bacterium in LWE following lactic acid bacteria, although the initial number of Pseudomonas after pasteurization was relatively limited (< 10 CFU mL-1 ). A total of 23 strains, including six Pseudomonas strains, were obtained. The pH of pasteurized LWE decreased with the growth of microorganisms, while the content of total volatile basic nitrogen (TVB-N) increased curvilinearly. The average particle size increased almost continuously until the sample reached its shelf life. The functional properties of pasteurized LWE were also reduced after a week of refrigerated storage at 4 °C when the microorganisms in pasteurized LWE entered an exponential growth period and the TVB-N content of pasteurized LWE reached its first peak. CONCLUSION During refrigerated storage, Pseudomonas was the dominant bacterium in LWE next to lactic acid bacteria. After a week of refrigerated storage at 4 °C, the particle size of LWE increased, while the functional properties of LWE reduced. This study provides a basis for extending the shelf life of liquid egg products in future research. © 2020 Society of Chemical Industry.
Collapse
Affiliation(s)
- Jing Wang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China
- School of Food Science and Technology, Jiangnan University, Wuxi, China
- Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, Wuxi, China
| | - Luping Gu
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China
- School of Food Science and Technology, Jiangnan University, Wuxi, China
- Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, Wuxi, China
| | - Yujie Su
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China
- School of Food Science and Technology, Jiangnan University, Wuxi, China
- Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, Wuxi, China
| | - Cuihua Chang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China
- School of Food Science and Technology, Jiangnan University, Wuxi, China
- Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, Wuxi, China
| | - Lilan Xu
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China
- School of Food Science and Technology, Jiangnan University, Wuxi, China
- Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, Wuxi, China
| | - Yanjun Yang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China
- School of Food Science and Technology, Jiangnan University, Wuxi, China
- Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, Wuxi, China
| | - Junhua Li
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China
- School of Food Science and Technology, Jiangnan University, Wuxi, China
- Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, Wuxi, China
| |
Collapse
|
15
|
Kamimura BA, Cabral L, Noronha MF, Baptista RC, Nascimento HM, Sant'Ana AS. Amplicon sequencing reveals the bacterial diversity in milk, dairy premises and Serra da Canastra artisanal cheeses produced by three different farms. Food Microbiol 2020; 89:103453. [PMID: 32138999 DOI: 10.1016/j.fm.2020.103453] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2019] [Revised: 11/17/2019] [Accepted: 02/03/2020] [Indexed: 01/28/2023]
Abstract
In this work, the amplicon sequencing of the 16 S rRNA gene was employed to investigate the bacterial diversity in ingredients, processing environment, and ripened cheeses collected from three farms producing Serra da Canastra artisanal cheese. The data obtained indicated a remarkable variability in the bacteria consortia of the milk, whey, and environmental samples collected in farms 1, 2, and 3, despite their location in the same city. On the other hand, the starter culture and final product (ripened cheese) presented more constant and similar microbiota no matter the farm. The findings suggest that Streptococcus and Lactococcus have competitive advantages throughout Serra da Canastra cheese-making/ripening, which is crucial for their high relative abundance in the final products. An exploratory assessment based on sequencing data available in the literature showed that the Serra da Canastra cheeses sequences clustered with specific cheese varieties that are also made from raw milk but ripened for very different periods. The findings of this study highlight that despite the variability of milk and whey microbiota among the three farms, the starter culture ("pingo") has strong relevance in shaping the microbiota of the final product.
Collapse
Affiliation(s)
- Bruna A Kamimura
- Department of Food Science, Faculty of Food Engineering, University of Campinas, Campinas, SP, Brazil
| | - Lucélia Cabral
- Center for Research in Energy and Materials (CNPEM), Campinas, SP, Brazil; Institute of Biology, University of Campinas, Campinas, SP, Brazil
| | | | - Rafaela C Baptista
- Department of Food Science, Faculty of Food Engineering, University of Campinas, Campinas, SP, Brazil
| | - Henry M Nascimento
- Department of Food Science, Faculty of Food Engineering, University of Campinas, Campinas, SP, Brazil
| | - Anderson S Sant'Ana
- Department of Food Science, Faculty of Food Engineering, University of Campinas, Campinas, SP, Brazil.
| |
Collapse
|
16
|
Mantilla MJ, Torres Sáez RG. Enfoque metagenómico para la caracterización del microbioma de aves corral. Revisión. REVISTA COLOMBIANA DE BIOTECNOLOGÍA 2019. [DOI: 10.15446/rev.colomb.biote.v21n2.78390] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
El pollo y el huevo son una fuente importante de proteína para el ser humano a nivel mundial. La producción de estos alimentos se ha intensificado durante los últimos años y se prevé que se produzca alrededor de 150 millones de toneladas de carne de pollo en 2020 (OCDE / FAO, 2018). Sin embargo, uno de los mayores problemas ligados a los procesos de producción avícola lo constituyen las enfermedades infecciosas ocasionadas por microorganismos patógenos. Entre los más relevantes se encuentran microorganismos como Salmonella ssp, Campylobacter spp, y Escherichia coli. Por lo tanto, es importante comprender los mecanismos implicados en la colonización de microorganismos patógenos que afectan a las aves de corral y sus interacciones con la microbiota gastrointestinal las cuales son clave en la mejora de la absorción de nutrientes y el fortalecimiento del sistema inmune, que influye en el crecimiento, el bienestar y la salud de las aves de corral. Sin embargo, hay poca información relacionada con la microbiota gastrointestinal de pollos parrilleros y gallinas productoras de huevo. Hasta hace poco, la caracterización se limitaba a los microorganismos que podían recuperarse a través de cultivos tradicionales. Por lo anterior, en el último tiempo se ha intensificado el uso de técnicas moleculares, entre las que se destaca la metagenómica, la cual ofrece una alternativa para una mejor comprensión de las interacciones bacterianas, la identificación de genes de resistencia a los antibióticos, identificación de elementos genéticos móviles, y el diseño de estrategias para intervenciones más efectivas con el objetivo de romper la cadena de transmisión de microorganismos patógenos durante el ciclo de producción avícola. En esta revisión, se describen los principales enfoques metagenómicos para el estudio de microbiomas de aves de corral, las técnicas de secuenciación y herramientas bioinformáticas usadas para su caracterización.
Collapse
|