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Li H, Li Q, Wang Q, Chen J, Xia W, Liao E. Effects of Inoculating Autochthonous Starter Cultures on Changes of N-Nitrosamines and Their Precursors in Chinese Traditional Fermented Fish during In Vitro Human Digestion. Foods 2024; 13:2021. [PMID: 38998527 PMCID: PMC11241300 DOI: 10.3390/foods13132021] [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: 05/10/2024] [Revised: 06/17/2024] [Accepted: 06/25/2024] [Indexed: 07/14/2024] Open
Abstract
The objective of this research was to investigate the impact of inoculating autochthonous starter cultures on the alterations in microorganisms, biogenic amines, nitrite, and N-nitrosamines in Chinese traditional fermented fish products (CTFPs) during in vitro human digestion. The results revealed that gastric digestion significantly (p < 0.05) inhibited the proliferation of lactic acid bacteria, yeast, Staphylococcus, and Enterobacteriaceae, whereas various microorganisms proliferated extensively during small intestine digestion. Meanwhile, small intestine digestion could significantly increase (p < 0.05) levels of putrescine, cadaverine, and tyramine. The reduced content observed in inoculated fermentation groups suggests that starter cultures may have the ability to deplete biogenic amines in this digestion stage. Gastric digestion significantly (p < 0.05) inhibited nitrite accumulation in all CTFPs samples. Conversely, the nitrite content increased significantly (p < 0.05) in all groups during subsequent small intestine digestion. However, the rise in the inoculated fermentation groups was smaller than that observed in the spontaneous fermentation group, indicating a potentially positive role of inoculated fermentation in inhibiting nitrite accumulation during this phase. Additionally, gastric digestion significantly (p < 0.05) elevated the levels of N-nitrosodimethylamine (NDMA) and N-nitrosopiperidine in CTFPs. Inoculation with L. plantarum 120, S. cerevisiae 2018, and mixed starter cultures (L. plantarum 120, S. cerevisiae 2018, and S. xylosus 135 [1:1:1]) effectively increased the degree of depletion of NDMA during this digestion process.
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Affiliation(s)
- Han Li
- College of Food Science and Engineering, Wuhan Polytechnic University, Wuhan 430023, China
| | - Qian Li
- College of Food Science and Engineering, Wuhan Polytechnic University, Wuhan 430023, China
| | - Qi Wang
- College of Food Science and Engineering, Wuhan Polytechnic University, Wuhan 430023, China
- Hubei Key Laboratory for Processing and Transformation of Agricultural Products, Ministry of Education, Wuhan 430023, China
- National R&D Center for Se-Rich Agricultural Products Processing Technology, Wuhan 430023, China
| | - Jiwang Chen
- College of Food Science and Engineering, Wuhan Polytechnic University, Wuhan 430023, China
- Hubei Key Laboratory for Processing and Transformation of Agricultural Products, Ministry of Education, Wuhan 430023, China
- National R&D Center for Se-Rich Agricultural Products Processing Technology, Wuhan 430023, China
| | - Wenshui Xia
- College of Food Science and Engineering, Wuhan Polytechnic University, Wuhan 430023, China
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - E Liao
- College of Food Science and Engineering, Wuhan Polytechnic University, Wuhan 430023, China
- Hubei Key Laboratory for Processing and Transformation of Agricultural Products, Ministry of Education, Wuhan 430023, China
- National R&D Center for Se-Rich Agricultural Products Processing Technology, Wuhan 430023, China
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2
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Lu H, Sun L, Tong S, Jiang F, Chen L, Wang Y. Latilactobacillus curvatus FFZZH5L isolated from pickled cowpea enhanced antioxidant activity in Caenorhabditis elegans by upregulating the level of glutathione S-transferase. Food Funct 2023; 14:8646-8660. [PMID: 37672003 DOI: 10.1039/d3fo03093h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/07/2023]
Abstract
Latilactobacillus curvatus is a potential probiotic that possesses beneficial health properties and fermentation traits; however, the extent of understanding of the antioxidant activities of L. curvatus is limited. This study investigates the antioxidant activities of a new L. curvatus FFZZH5L strain. The strain exhibits broad tolerance to acids, bases and salts and demonstrated good adaption to the gastrointestinal environment, with a survival rate of 45% after 24 h of treatment in artificial gastrointestinal juice. Moreover, L. curvatus FFZZH5L exhibits inhibitory effects on Staphylococcus aureus, with a self-aggregation rate of 34.8% and a co-aggregation rate of 82.2%. In vitro, the DPPH radical scavenging ability and GSH-px enzyme activity of L. curvatus FFZZH5L reach 64.27% and 15.95 U mL-1, respectively. Treatment of C. elegans with L. curvatus FFZZH5L in vivo significantly extended the organism's lifespan. Furthermore, the activity of SOD, GSH-px and T-AOC was increased by 33.6%, 43.4% and 58.3%, respectively. Feeding C. elegans with L. curvatus FFZZH5L decreased the MDA, lipofuscin and ROS levels by 9%-36.4%. L. curvatus FFZZH5L effectively protected C. elegans against juglone-induced oxidative stress damage and led to a significant increase in the organism's survival under heat stress. The RT-qPCR analysis suggests that feeding C. elegans with L. curvatus FFZZH5L upregulates the expression levels of antioxidant-related genes including glutathione S-transferase 4 (gst-4), gst-1, gst-10, sod-3, sod-5, and sod-10 in C. elegans. Our investigation confirms the probiotic and antioxidant properties of L. curvatus, indicating its potential application in functional foods and the pharmaceutical industry.
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Affiliation(s)
- Hengqian Lu
- School of Life Sciences, Anhui University, Hefei 230601, Anhui, China.
- Key Laboratory of Human Microenvironment and Precision Medicine of Anhui Higher Education Institutes, Anhui University, Hefei 230601, Anhui, China
| | - Liangyin Sun
- School of Life Sciences, Anhui University, Hefei 230601, Anhui, China.
- Key Laboratory of Human Microenvironment and Precision Medicine of Anhui Higher Education Institutes, Anhui University, Hefei 230601, Anhui, China
| | - Sijia Tong
- School of Life Sciences, Anhui University, Hefei 230601, Anhui, China.
- Key Laboratory of Human Microenvironment and Precision Medicine of Anhui Higher Education Institutes, Anhui University, Hefei 230601, Anhui, China
| | - Fei Jiang
- School of Life Sciences, Anhui University, Hefei 230601, Anhui, China.
- Key Laboratory of Human Microenvironment and Precision Medicine of Anhui Higher Education Institutes, Anhui University, Hefei 230601, Anhui, China
| | - Liping Chen
- School of Life Sciences, Anhui University, Hefei 230601, Anhui, China.
- Key Laboratory of Human Microenvironment and Precision Medicine of Anhui Higher Education Institutes, Anhui University, Hefei 230601, Anhui, China
| | - Yongzhong Wang
- School of Life Sciences, Anhui University, Hefei 230601, Anhui, China.
- Key Laboratory of Human Microenvironment and Precision Medicine of Anhui Higher Education Institutes, Anhui University, Hefei 230601, Anhui, China
- Anhui Key Laboratory of Modern Biomanufacturing, Hefei 230601, Anhui, China
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Jin H, Park SK, Yun YG, Song NE, Baik SH. Isolation of Latilactobacillus curvatus with Enhanced Nitric Oxide Synthesis from Korean Traditional Fermented Food and Investigation of Its Probiotic Properties. Microorganisms 2023; 11:2285. [PMID: 37764128 PMCID: PMC10536857 DOI: 10.3390/microorganisms11092285] [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: 08/21/2023] [Revised: 08/31/2023] [Accepted: 09/07/2023] [Indexed: 09/29/2023] Open
Abstract
Nitric oxide (NO) is a free radical associated with physiological functions such as blood pressure regulation, cardiovascular health, mitochondrial production, calcium transport, oxidative stress, and skeletal muscle repair. This study aimed to isolate Latilactobacillus curvatus strains with enhanced NO production from the traditional Korean fermented food, jangajji, and evaluate their probiotic properties for industrial purposes. When cells were co-cultured with various bacterial stimulants, NO production generally increased, and NO synthesis was observed in the range of 20-40 mg/mL. The selected strains of Lat. curvatus were resistant to acid and bile conditions and with variable effectiveness (1-14%) in adhering to Caco-2 cells. Most bacterial strains can inhibit the growth of various pathogens. In addition, they are capable of reducing cholesterol levels via assimilation of cholesterol at 10-50%. Among the selected NO synthases from Lat. curvatus strains, the strain JBCC38 showed the highest capacity to scavenge ABTS (30.1%) and DPPH radicals (39.4%). Moreover, these strains exhibited immunomodulatory properties. The production of TNF-α and IL-6 in the macrophages treated with various bacterial stimulants was induced in all the selected strains.
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Affiliation(s)
| | | | | | | | - Sang-Ho Baik
- Department of Food Science and Human Nutrition, Jeonbuk National University, Jeonju 54896, Republic of Korea; (H.J.); (S.-K.P.); (Y.-G.Y.); (N.-E.S.)
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4
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Leng W, Wu X, Qi X, Liu H, Yuan L, Gao R. Systematic functional analysis and potential application of a serine protease from cold-adapted Planococcus bacterium. FOOD SCIENCE AND HUMAN WELLNESS 2023. [DOI: 10.1016/j.fshw.2023.02.025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/28/2023]
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5
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Akansel B, Yılmaz Oral ZF, Sallan S, Kaban G, Kaya M. Effect of Black Garlic on Microbiological Properties, Lipid Oxidation, Residual Nitrite, Nitrosamine Formation and Sensory Characteristics in a Semi-Dry Fermented Sausage. Foods 2023; 12:foods12071545. [PMID: 37048366 PMCID: PMC10094117 DOI: 10.3390/foods12071545] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 03/20/2023] [Accepted: 04/04/2023] [Indexed: 04/08/2023] Open
Abstract
This study was conducted with the aim of determining the effects of different black garlic (BG) levels (1%, 2% and 3%) on quality characteristics of a semi-dry fermented sausage (heat-treated sucuk). In addition, the effect of cooking time (0, 1 or 3 min at 180 °C on a hot plate) on nitrosamine formation was investigated. Fresh garlic (FG, 1%) was evaluated as the control group. BG (2% and 3%) caused a reduction in the count of lactic acid bacteria while leading to an increase in pH. FG1% gave the highest number of Micrococcus/Staphylococcus, as well as aw value. The thiobarbituric acid reactive substance (TBARS) value increased with increasing BG levels. FG (1%) showed the highest residual nitrite amount (p < 0.05). The scores for color, taste and general acceptability were reduced by the use of BG (p < 0.05). No significant difference was observed between the garlic treatments in terms of N-Nitrosodimethylamine (NDMA) and N-Nitrosodiethylamine (NDEA) when no additional cooking was applied. Cooking time was determined to have no significant effect on NDMA in 3% BG. The use of BG caused an increase in N-Nitrosopiperidine (NPIP) (p < 0.05). As for PCA, a closer correlation between NPIP and the groups containing BG was observed, while there was a strong correlation between NDMA and the FG group cooked for 3 min. The use of BG caused an increase in NPIP, but affected NDMA and NDEA depending on the cooking time.
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Affiliation(s)
- Begüm Akansel
- Department of Food Engineering, Faculty of Agriculture, Atatürk University, TR-25240 Erzurum, Türkiye
| | - Zeynep Feyza Yılmaz Oral
- Department of Food Technology, Vocational School of Technical Sciences, Atatürk University, TR-25240 Erzurum, Türkiye
| | - Selen Sallan
- Departmet of Food Processing, Bandırma Vocational School, Bandırma Onyedi Eylül University, TR-10200 Balıkesir, Türkiye
| | - Güzin Kaban
- Department of Food Engineering, Faculty of Agriculture, Atatürk University, TR-25240 Erzurum, Türkiye
| | - Mükerrem Kaya
- Department of Food Engineering, Faculty of Agriculture, Atatürk University, TR-25240 Erzurum, Türkiye
- MK Consulting, Ata Teknokent, TR-25240 Erzurum, Türkiye
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6
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Sirini N, Stegmayer M, Ruiz MJ, Cuffia F, Rossler E, Otero J, Soto L, Lorenzo JM, Pérez-Álvarez JÁ, Rosmini M, Frizzo L. Applicability of the probiotic Lactiplantibacillus plantarum BFL as an adjunct culture in a dry fermented sausage. Meat Sci 2023; 200:109166. [PMID: 36996731 DOI: 10.1016/j.meatsci.2023.109166] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Revised: 03/06/2023] [Accepted: 03/11/2023] [Indexed: 03/17/2023]
Abstract
The addition of probiotic bacteria to a meat batter allows the development of functional fermented sausages. The aim of this work was to study the effect of microencapsulated Lactiplantibacillus plantarum BFL (EP) and as free cells (FP) on microbiological, physicochemical, and sensory parameters of fermented sausages during the drying stage and on the product ready for consumption. The microencapsulation of L. plantarum BFL did not improve its viability during the drying stage. In addition, sausages inoculated with L. plantarum BFL (FP and EP) caused lower residual nitrites values, pH values and Escherichia coli counts than the Control (C). However, only the presence of free cells of L. plantarum BFL (FP) caused a decrease in the Enterobacteriaceae and mannitol salt-positive Staphylococcus counts. In the sensory analysis, no significant differences were found in the acceptability of the different sausages. However, the acidity in probiotic sausages (FP and EP) was an attribute that consumers highlighted. The probiotic L. plantarum BFL could adapt and survive at high doses in the matrix of an industrial fermented sausage. Therefore, its use could represent a strategy both for biocontrol of pathogens and for the development of functional meat products.
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Sallan S, Yılmaz Oral ZF, Kaya M. A Review on the Role of Lactic Acid Bacteria in the Formation and Reduction of Volatile Nitrosamines in Fermented Sausages. Foods 2023; 12:foods12040702. [PMID: 36832777 PMCID: PMC9955677 DOI: 10.3390/foods12040702] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2023] [Revised: 01/28/2023] [Accepted: 01/31/2023] [Indexed: 02/08/2023] Open
Abstract
Nitrosamines are N-nitroso compounds with carcinogenic, mutagenic and teratogenic properties. These compounds could be found at certain levels in fermented sausages. Fermented sausages are considered to be a suitable environment for nitrosamine formation due to acid formation and reactions such as proteolysis and lipolysis during ripening. However, lactic acid bacteria (spontaneous or starter culture), which constitute the dominant microbiota, contribute significantly to nitrosamine reduction by reducing the amount of residual nitrite through nitrite degradation, and pH decrease has an important effect on the residual nitrite amount as well. These bacteria also play an indirect role in nitrosamine reduction by suppressing the growth of bacteria that form precursors such as biogenic amines. In recent years, research interest has focused on the degradation or metabolization of nitrosamines by lactic acid bacteria. The mechanism by which these effects are seen has not been fully understood yet. In this study, the roles of lactic acid bacteria on nitrosamine formation and their indirect or direct effects on reduction of volatile nitrosamines are discussed.
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Affiliation(s)
- Selen Sallan
- Department of Food Processing, Bandırma Vocational School, Bandırma Onyedi Eylul University, 10200 Balıkesir, Türkiye
| | - Zeynep Feyza Yılmaz Oral
- Department of Food Technology, Erzurum Vocational School, Atatürk University, 25240 Erzurum, Türkiye
| | - Mükerrem Kaya
- Department of Food Engineering, Faculty of Agriculture, Atatürk University, 25240 Erzurum, Türkiye
- Correspondence:
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8
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Lv J, Lin X, Liu M, Yan X, Liang H, Ji C, Li S, Zhang S, Chen Y, Zhu B. Effect of Saccharomyces cerevisiae LXPSC1 on microorganisms and metabolites of sour meat during the fermentation. Food Chem 2023; 402:134213. [DOI: 10.1016/j.foodchem.2022.134213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2021] [Revised: 08/20/2022] [Accepted: 09/09/2022] [Indexed: 10/14/2022]
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9
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Hu P, Ali U, Aziz T, Wang L, Zhao J, Nabi G, Sameeh MY, Yu Y, Zhu Y. Investigating the effect on biogenic amines, nitrite, and N-nitrosamine degradation in cultured sausage ripening through inoculation of Staphylococcus xylosus and lactic acid bacteria. Front Microbiol 2023; 14:1156413. [PMID: 36970674 PMCID: PMC10033708 DOI: 10.3389/fmicb.2023.1156413] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Accepted: 02/20/2023] [Indexed: 03/29/2023] Open
Abstract
Introduction Microbial inoculants can reinvent the value and edible security of cultured sausages. Various studies have demonstrated that starter cultures made up of Lactic acid bacteria (LAB) and Staphylococcus xylosus (known as L-S) isolated from traditional fermented foods were used in fermented sausage manufacturing. Methods This study evaluated the impact of the mixed inoculation cultures on limiting biogenic amines, nitrite depletion, N-nitrosamine reduction, and quality metrics. Inoculation of sausages with the commercial starter culture (SBM-52) was evaluated for comparison. Results and discussion Results showed that the L-S strains could rapidly decrease the water activity (Aw) and pH of fermented sausages. The ability of the L-S strains to delay lipid oxidation was equivalent to the SBM-52 strains. The non-protein nitrogen (NPN) contents of L-S-inoculated sausages (0.31%) were higher than that of SBM-52-inoculated sausages (0.28%). After the ripening process, the nitrite residues in the L-S sausages were 1.47 mg/kg lower than in the SBM-52 sausages. Compared to the SBM-52 sausages, there was a 4.88 mg/kg reduction in the biogenic amines' concentrations in L-S sausage, especially for histamine and phenylethylamine concentrations. The N-nitrosamine accumulations of the L-S sausages (3.40 ug/kg) were lower than that of the SBM-52 sausages (3.70 ug/kg), and the NDPhA accumulations of the L-S sausages were 0.64 ug/kg lower than that of the SBM-52 sausages. Due to their significant contributions to nitrite depletion, biogenic amine reduction, and N-nitrosamine depletion in fermented sausages, the L-S strains have the potential to serve as an initial inoculant in the process of manufacturing fermented sausages.
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Affiliation(s)
- Panpan Hu
- Department of Life Science, Lyuliang University, Lishi, Shanxi, China
| | - Urooj Ali
- Department of Biotechnology, Quaid e Azam University, Islamabad, Pakistan
| | - Tariq Aziz
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, China
| | - Li Wang
- Department of Life Science, Lyuliang University, Lishi, Shanxi, China
| | - Jianying Zhao
- Department of Life Science, Lyuliang University, Lishi, Shanxi, China
| | - Ghulam Nabi
- Institute of Nature Conservation, Polish Academy of Sciences, Krakow, Poland
| | - Manal Y. Sameeh
- Department of Chemistry, Faculty of Applied Sciences, Al-Leith University College, Umm Al-Qura University, Makkah, Saudi Arabia
| | - Yanqin Yu
- Department of Life Science, Lyuliang University, Lishi, Shanxi, China
- *Correspondence: Yanqin Yu, ; Yingchun Zhu,
| | - Yingchun Zhu
- College of Food Science and Engineering, Shanxi Agricultural University, Taigu, Shanxi, China
- *Correspondence: Yanqin Yu, ; Yingchun Zhu,
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Lu Y, Xing S, He L, Li C, Wang X, Zeng X, Dai Y. Characterization, High-Density Fermentation, and the Production of a Directed Vat Set Starter of Lactobacilli Used in the Food Industry: A Review. Foods 2022; 11:3063. [PMID: 36230139 PMCID: PMC9563398 DOI: 10.3390/foods11193063] [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: 08/16/2022] [Revised: 09/15/2022] [Accepted: 09/29/2022] [Indexed: 11/16/2022] Open
Abstract
Lactobacilli have been widely concerned for decades. Bacteria of the genus Lactobacillus have been commonly employed in fermented food to improve the appearance, smell, and taste of food or prolong its shelf-life. They comprise 261 species (by March 2020) that are highly diverse at the phenotypic, ecological, and genotypic levels. Some Lactobacilli strains have been documented to be essential probiotics, which are defined as a group of living microorganisms that are beneficial to the health of the host when ingested in sufficiency. However, the characterization, high-density fermentation, and the production of a directed vat set (DVS) starter of Lactobacilli strains used in the food industry have not been systematically reported. This paper mainly focuses on reviewing Lactobacilli as functional starter cultures in the food industry, including different molecular techniques for identification at the species and strain levels, methods for evaluating Lactobacilli properties, enhancing their performance and improving the cell density of Lactobacilli, and the production techniques of DVS starter of Lactobacilli strains. Moreover, this review further discussed the existing problems and future development prospects of Lactobacilli in the food industry. The viability and stability of Lactobacilli in the food industry and gastrointestinal environment are critical challenges at the industrial scale. The new production equipment and technology of DVS starter of Lactobacilli strains will have the potential for large-scale application, for example, developing low-temperature spray drying, freezing granulation drying, and spray freeze-drying.
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Affiliation(s)
- Yun Lu
- Key Laboratory of Agricultural and Animal Products Storage & Processing of Guizhou Province, Guizhou University, Guiyang 550025, China
- Department of Brewing Engineering, Moutai University, Renhuai 564507, China
| | - Shuqi Xing
- Key Laboratory of Agricultural and Animal Products Storage & Processing of Guizhou Province, Guizhou University, Guiyang 550025, China
- College of Liquor and Food Engineering, Guizhou University, Guiyang 550025, China
| | - Laping He
- Key Laboratory of Agricultural and Animal Products Storage & Processing of Guizhou Province, Guizhou University, Guiyang 550025, China
- College of Liquor and Food Engineering, Guizhou University, Guiyang 550025, China
| | - Cuiqin Li
- Key Laboratory of Agricultural and Animal Products Storage & Processing of Guizhou Province, Guizhou University, Guiyang 550025, China
- College of Liquor and Food Engineering, Guizhou University, Guiyang 550025, China
- School of Chemistry and Chemical Engineering, Guizhou University, Guiyang 550025, China
| | - Xiao Wang
- Key Laboratory of Agricultural and Animal Products Storage & Processing of Guizhou Province, Guizhou University, Guiyang 550025, China
- College of Liquor and Food Engineering, Guizhou University, Guiyang 550025, China
| | - Xuefeng Zeng
- Key Laboratory of Agricultural and Animal Products Storage & Processing of Guizhou Province, Guizhou University, Guiyang 550025, China
- College of Liquor and Food Engineering, Guizhou University, Guiyang 550025, China
| | - Yifeng Dai
- Key Laboratory of Agricultural and Animal Products Storage & Processing of Guizhou Province, Guizhou University, Guiyang 550025, China
- College of Liquor and Food Engineering, Guizhou University, Guiyang 550025, China
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Wang Y, Han J, Wang D, Gao F, Zhang K, Tian J, Jin Y. Research Update on the Impact of Lactic Acid Bacteria on the Substance Metabolism, Flavor, and Quality Characteristics of Fermented Meat Products. Foods 2022; 11:foods11142090. [PMID: 35885333 PMCID: PMC9320142 DOI: 10.3390/foods11142090] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Revised: 07/06/2022] [Accepted: 07/10/2022] [Indexed: 12/04/2022] Open
Abstract
This paper reviews the effects of domestic and foreign influences on the substance metabolism pathways and the flavor and flora of LAB in fermented meat products to provide a new theoretical basis for developing new products for the industrial application of lactic acid bacteria (LAB) in fermented meat products. LAB are extensively used among commonly fermented ingredients, such as fermented meat products and yogurt. As fermenting agents, LAB metabolize proteins, lipids, and glycogen in meat products through their enzyme system, which affects the tricarboxylic acid cycle, fatty acid metabolism, amino acid decomposition, and other metabolic processes, and decompose biological macromolecules into small molecules, adding a special flavor with a certain functionality to the final product. Metabolites of LAB in the fermentation process also exert nitrite degradation, as well as antibacterial and antioxidant functions, which improve the physical and chemical qualities of fermented meat products. While fermenting meat products, LAB not only add unique flavor substances to the products, but also improve the safety profile of fermented foods.
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Affiliation(s)
- Yi Wang
- College of Food Science and Engineering, Inner Mongolia Agricultural University, Hohhot 010018, China; (Y.W.); (J.H.); (D.W.); (F.G.); (Y.J.)
- Ministry of Agriculture and Rural Affairs Integrative Research Base of Beef and Lamb Processing Technology, Hohhot 010018, China
| | - Jun Han
- College of Food Science and Engineering, Inner Mongolia Agricultural University, Hohhot 010018, China; (Y.W.); (J.H.); (D.W.); (F.G.); (Y.J.)
- Ministry of Agriculture and Rural Affairs Integrative Research Base of Beef and Lamb Processing Technology, Hohhot 010018, China
| | - Daixun Wang
- College of Food Science and Engineering, Inner Mongolia Agricultural University, Hohhot 010018, China; (Y.W.); (J.H.); (D.W.); (F.G.); (Y.J.)
- Ministry of Agriculture and Rural Affairs Integrative Research Base of Beef and Lamb Processing Technology, Hohhot 010018, China
| | - Fang Gao
- College of Food Science and Engineering, Inner Mongolia Agricultural University, Hohhot 010018, China; (Y.W.); (J.H.); (D.W.); (F.G.); (Y.J.)
- Ministry of Agriculture and Rural Affairs Integrative Research Base of Beef and Lamb Processing Technology, Hohhot 010018, China
| | - Kaiping Zhang
- Department of Cooking & Food Processing, Inner Mongolia Business and Trade Vocational College, Hohhot 010070, China;
| | - Jianjun Tian
- College of Food Science and Engineering, Inner Mongolia Agricultural University, Hohhot 010018, China; (Y.W.); (J.H.); (D.W.); (F.G.); (Y.J.)
- Ministry of Agriculture and Rural Affairs Integrative Research Base of Beef and Lamb Processing Technology, Hohhot 010018, China
- Correspondence: ; Tel.: +86-0471-4304722
| | - Ye Jin
- College of Food Science and Engineering, Inner Mongolia Agricultural University, Hohhot 010018, China; (Y.W.); (J.H.); (D.W.); (F.G.); (Y.J.)
- Ministry of Agriculture and Rural Affairs Integrative Research Base of Beef and Lamb Processing Technology, Hohhot 010018, China
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12
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Zhu J, Tan Z, Zhang Z, Shi X. Characterization on structure and bioactivities of an exopolysaccharide from Lactobacillus curvatus SJTUF 62116. Int J Biol Macromol 2022; 210:504-517. [PMID: 35508227 DOI: 10.1016/j.ijbiomac.2022.04.203] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Revised: 04/21/2022] [Accepted: 04/27/2022] [Indexed: 12/17/2022]
Abstract
This study aimed to investigate the chemical structure, physicochemical properties, antioxidant capacity, antibacterial ability and anti-biofilm formation activity of an exopolysaccharide (EPS) produced by Lactobacillus curvatus SJTUF 62116 from the fish Gymnocypris przewalskii. The purified EPS, denoted as EPS-1, was mainly composed of glucose and mannose at a relative molar ratio of 1:1.05 with molecular weight of 31.9 kDa. The chemical structure of EPS-1 was consisted of →2)-α-D-Manp-(1→, →4)-α-D-Manp-(1→, →3,6)-α-D-Manp-(1→, T-β-D-Glcp-(1→, →6)-β-D-Glcp-(1→, and →3)-β-D-Glcp-(1→ glycosidic bonds. A sheet-like structure of dried EPS-1 was determined by scanning electron microscope (SEM), whilst a peak-shaped structure of EPS-1 was observed by atomic force microscope (AFM). The degradation temperature of EPS-1 was determined as 300.21 °C using thermogravimetric analysis (TGA). Moreover, the antioxidant capacity of EPS-1 at a concentration of 5.0 mg/mL against DPPH and ABTS was 84.50% and 92.53%, respectively. Furthermore, EPS-1 exhibited acceptable bacteriostatic efficacy against S. Enteritidis, E. coli, and S.aureus with significant inhibition of S. Enteritidis biofilm formation.
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Affiliation(s)
- Jinyu Zhu
- MOST-USDA Joint Research Center for Food Safety, School of Agriculture and Biology, State Key Lab of Microbial Metabolism, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Zhongfang Tan
- College of Agriculture Science, Zhengzhou University, Zhengzhou 450001, China
| | - Zhong Zhang
- Institute of Edible Fungi, Shanghai Academy of Agricultural Sciences, National Engineering Research Center of Edible Fungi, Shanghai 201403, China
| | - Xianming Shi
- MOST-USDA Joint Research Center for Food Safety, School of Agriculture and Biology, State Key Lab of Microbial Metabolism, Shanghai Jiao Tong University, Shanghai 200240, China.
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13
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Sbardelotto PRR, Balbinot-Alfaro E, da Rocha M, Alfaro AT. Natural alternatives for processed meat: Legislation, markets, consumers, opportunities and challenges. Crit Rev Food Sci Nutr 2022; 63:10303-10318. [PMID: 35647788 DOI: 10.1080/10408398.2022.2081664] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Consumers' interest in food with less and/or free from synthetic additives has increased considerably in recent years. In this context, researchers and industries have concentrated efforts on developing alternatives to these compounds. Replacing synthetic additives in meat products is a challenge, given their importance for sensory characteristics and food safety. Complementary technologies combined with the replacement and/or reduction of synthetic additives (hurdle technologies) has been studied focusing on the protection and extension of the shelf life of meat products. This review reports alternatives for replacing and/or reducing the use of synthetic additives in meat derivatives, aiming at the development of more natural and simpler meat products, familiar to consumers and considered clean labels.
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Affiliation(s)
- Paula R R Sbardelotto
- Meat Technology Laboratory, Department of Food Technology, Federal University of Technology - Paraná, Francisco Beltrão, Paraná, Brazil
| | - Evellin Balbinot-Alfaro
- School of Chemistry and Food, Federal University of Rio Grande, Rio Grande, Rio Grande do Sul, Brazil
| | - Meritaine da Rocha
- School of Chemistry and Food, Federal University of Rio Grande (FURG), Rio Grande, Rio Grande do Sul, Brazil
| | - Alexandre T Alfaro
- Meat Technology Laboratory, Department of Food Technology, Federal University of Technology - Paraná, Francisco Beltrão, Paraná, Brazil
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14
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Difonzo G, Totaro MP, Caponio F, Pasqualone A, Summo C. Olive Leaf Extract (OLE) Addition as Tool to Reduce Nitrate and Nitrite in Ripened Sausages. Foods 2022; 11:foods11030451. [PMID: 35159601 PMCID: PMC8834353 DOI: 10.3390/foods11030451] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Revised: 01/28/2022] [Accepted: 01/29/2022] [Indexed: 02/08/2023] Open
Abstract
Olive leaf extract (OLE) is known to be a source of phenolic compounds with antioxidant and antimicrobial activities. This study investigated the effects of the OLE addition to reduce nitrate/nitrite (NO) content on the physico-chemical features of ripened pork sausages. Seven formulations of pork sausages were set up: CTRL (0 mg/kg OLE; 300 mg/kg NO), Tr1 (200 mg/kg OLE; 150 mg/kg NO), Tr2 (400 mg/kg OLE; 150 mg/kg NO), Tr3 (800 mg/kg OLE; 150 mg/kg NO), Tr4 (200 mg/kg OLE; 0 mg/kg NO), Tr5 (400 mg/kg OLE; 0 mg/kg NO), and Tr6 (800 mg/kg OLE; 0 mg/kg NO). At the end of the ripening period, all the samples were within hygienic limits and the substitution of the additives with OLE allowed the reduction of NO residual contents. Both OLE and NO influenced the colour parameters. At the highest dose of OLE, both alone and in combination with reduced dose of NO, no significant differences in terms of moisture, pH, and aw were found compared to CTRL. In absence of NO, a significant reduction of weight loss was observed. Moreover, in the samples without NO a reduction of the hardness was detected. Finally, the oxidative stability test showed that the increase of the OLE amount prolonged the induction time.
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15
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Xiao-Hui G, Jing W, Ye-Ling Z, Ying Z, Qiu-Jin Z, Ling-Gao L, Dan C, Yan-Pei H, Sha G, Ming-Ming L. Mediated curing strategy: An overview of salt reduction for dry-cured meat products. FOOD REVIEWS INTERNATIONAL 2022. [DOI: 10.1080/87559129.2022.2029478] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Affiliation(s)
- Gong Xiao-Hui
- School of Liquor & Food Engineering, Guizhou University, Guiyang, Guizhou, China
- Guizhou Provincial Key Laboratory of Agricultural and Animal Products Storage and Processing Guizhou University, Guiyang, China
| | - Wan Jing
- School of Liquor & Food Engineering, Guizhou University, Guiyang, Guizhou, China
- Guizhou Provincial Key Laboratory of Agricultural and Animal Products Storage and Processing Guizhou University, Guiyang, China
- Key Laboratory Mountain Plateau Animals Genetics and Breeding, Ministry of Education, Guiyang, Guizhou, China
| | - Zhou Ye-Ling
- School of Liquor & Food Engineering, Guizhou University, Guiyang, Guizhou, China
- Guizhou Provincial Key Laboratory of Agricultural and Animal Products Storage and Processing Guizhou University, Guiyang, China
| | - Zhou Ying
- School of Liquor & Food Engineering, Guizhou University, Guiyang, Guizhou, China
- Guizhou Provincial Key Laboratory of Agricultural and Animal Products Storage and Processing Guizhou University, Guiyang, China
| | - Zhu Qiu-Jin
- School of Liquor & Food Engineering, Guizhou University, Guiyang, Guizhou, China
- Guizhou Provincial Key Laboratory of Agricultural and Animal Products Storage and Processing Guizhou University, Guiyang, China
- Key Laboratory Mountain Plateau Animals Genetics and Breeding, Ministry of Education, Guiyang, Guizhou, China
| | - Liu Ling-Gao
- School of Liquor & Food Engineering, Guizhou University, Guiyang, Guizhou, China
- Guizhou Provincial Key Laboratory of Agricultural and Animal Products Storage and Processing Guizhou University, Guiyang, China
| | - Chen Dan
- School of Liquor & Food Engineering, Guizhou University, Guiyang, Guizhou, China
- Guizhou Provincial Key Laboratory of Agricultural and Animal Products Storage and Processing Guizhou University, Guiyang, China
| | - Huang Yan-Pei
- School of Liquor & Food Engineering, Guizhou University, Guiyang, Guizhou, China
- Guizhou Provincial Key Laboratory of Agricultural and Animal Products Storage and Processing Guizhou University, Guiyang, China
| | - Gu Sha
- School of Liquor & Food Engineering, Guizhou University, Guiyang, Guizhou, China
- Guizhou Provincial Key Laboratory of Agricultural and Animal Products Storage and Processing Guizhou University, Guiyang, China
| | - Li Ming-Ming
- School of Liquor & Food Engineering, Guizhou University, Guiyang, Guizhou, China
- Guizhou Provincial Key Laboratory of Agricultural and Animal Products Storage and Processing Guizhou University, Guiyang, China
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Feng LU, Li Y, Ma C, Tuo Y. Bacterial Diversity of Sun-Dried Spanish Mackerel in Dalian and Application of Lactobacillus plantarum X23 as a Biopreservative. J Food Prot 2021; 84:2133-2142. [PMID: 33984135 DOI: 10.4315/jfp-21-057] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Accepted: 05/07/2021] [Indexed: 11/11/2022]
Abstract
ABSTRACT Sun-dried Spanish mackerel is a common food in Dalian and made by adding salt and sun drying, which has special physical, chemical, and microbiological properties. In this study, the physicochemical properties and microbial composition of commercially available sun-dried Spanish mackerel in Dalian were assessed, and some Lactobacillus strains were screened as a biopreservative for sun-dried Spanish mackerel preparation. The results showed that the total volatile base nitrogen content in the traditional sun-dried Spanish mackerel samples from Dalian was within 30 mg/100 g, the histamine content was 7 to 17 mg/kg, and the dominant bacteria at the genus level were Lactobacillus, Psychrobacter, and Ralstonia. A strain with biopreservative potential was isolated from a sun-dried Spanish mackerel sample, identified as L. plantarum species by 16S rDNA sequencing, and assigned as L. plantarum X23. Fresh Spanish mackerel flesh was treated with 16% brine and L. plantarum X23 at a dose of 107 CFU/mL and then dried in the sun. The sun-dried Spanish mackerel flesh treated with 16% brine and L. plantarum X23 showed a decreased histamine and acid value, increased free amino acid content, and a higher sensory score compared with the sun-dried Spanish mackerel without L. plantarum X23 treatment (P < 0.05). In conclusion, the sun-dried Spanish mackerel purchased from the supermarkets in Dalian were safely edible, and L. plantarum X23 can significantly reduce the content of histamine and putrescine in self-made, low-salt, sun-dried Spanish mackerel and has potential as a biopreservative for sun-dried Spanish mackerel preparation. HIGHLIGHTS
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Affiliation(s)
- L U Feng
- 1School of Food Science and Technology and Dalian Probiotics Function Research Key Laboratory, Dalian Polytechnic University, Dalian 116034, People's Republic of China
| | - Ying Li
- 1School of Food Science and Technology and Dalian Probiotics Function Research Key Laboratory, Dalian Polytechnic University, Dalian 116034, People's Republic of China
| | - Changlu Ma
- Department of Food and Biological Engineering, Beijing Vocational College of Agriculture, Beijing 102442, People's Republic of China
| | - Yanfeng Tuo
- 1School of Food Science and Technology and Dalian Probiotics Function Research Key Laboratory, Dalian Polytechnic University, Dalian 116034, People's Republic of China
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Sun F, Tao R, Liu Q, Wang H, Kong B. Effects of temperature and pH on the structure of a metalloprotease from Lactobacillus fermentum R6 isolated from Harbin dry sausages and molecular docking between protease and meat protein. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2021; 101:5016-5027. [PMID: 33548144 DOI: 10.1002/jsfa.11146] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2020] [Revised: 02/03/2021] [Accepted: 02/06/2021] [Indexed: 06/12/2023]
Abstract
BACKGROUND Microbial protease can interact with meat protein in fermented meat products at a certain pH and temperature. To investigate the effects of various pH values and temperatures on the structural characteristics of Lactobacillus fermentum R6 protease, which was isolated from Harbin dry sausages, spectroscopy techniques and molecular dynamics were utilized to evaluate structural changes. RESULTS The protease exhibited a stable spatial structure at pH 7 and 40 °C, and the extension of the protease structure was also promoted. Although the structure of the protease could be changed or destroyed by pH 8 and 70 °C, it was mainly determined by the changes of secondary and tertiary structures such as α-helix, β-sheet, β-turn and random coil. In addition, carbonyl vibration, -NH vibration, C-H stretching vibration and disulphide bonds were present in L. fermentum R6 protease under various pH and temperature conditions. Molecular docking showed that the protease can interact with myosin light chain, myosin heavy chain, actin and myoglobin. CONCLUSION The protease can maintain stable structure and interact with meat protein, which reflected certain application prospects in the fermentation of Harbin dry sausages. © 2021 Society of Chemical Industry.
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Affiliation(s)
- Fangda Sun
- College of Food Science, Northeast Agricultural University, Harbin, China
| | - Ran Tao
- Department of Food Science and Agricultural Chemistry, McGill University, Sainte-Anne-de-Bellevue, QC, Canada
| | - Qian Liu
- College of Food Science, Northeast Agricultural University, Harbin, China
| | - Hui Wang
- College of Food Science, Northeast Agricultural University, Harbin, China
| | - Baohua Kong
- College of Food Science, Northeast Agricultural University, Harbin, China
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18
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Application of Latilactobacillus curvatus into Pickled Shrimp (Litopenaeus Vannamei). JOURNAL OF PURE AND APPLIED MICROBIOLOGY 2021. [DOI: 10.22207/jpam.15.3.21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Latilactobacillus curvatus has a strong carbohydrate fermentative ability and antibacterial ability. It is considered as a promising probiotic by its excellent fermentation attributes and health advantages. Pickled shrimp derived from the fermentation process is highly appreciated by its unique texture, taste and flavor. However, this product is easily decomposed by spoilage bacteria especially Staphylococcus. This research evaluated the inoculation of L. curvatus (0.1-0.5 %) and different fermentation temperatures (28-30 oC) on the reduction of Staphylococcus aureus, pH and overall acceptance of the pickled shrimp after 6 weeks of fermentation. Results showed that the fermentation process should be conducted at 29 oC with 0.3 % Latilactobacillus curvatus (at initial density 9 log cfu/ml) to reduce pH to 3.70, completely against Staphylococcus aureus, obtain the highest sensory score (8.91).
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19
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Wu Y, Qin L, Chen J, Wang H, Liao E. Nitrite, biogenic amines and volatile N-nitrosamines in commercial Chinese traditional fermented fish products. FOOD ADDITIVES & CONTAMINANTS PART B-SURVEILLANCE 2021; 15:10-19. [PMID: 34427175 DOI: 10.1080/19393210.2021.1971303] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
To examine the safety of Chinese traditional fermented fish products (CTFPs) available on the Chinese market, nitrite, nitrate, biogenic amines (BAs) and volatile N-nitrosamines (VNAs) content in 33 commercial CTFPs from different provinces was investigated. The mean content of nitrite and nitrate wase 0.63 and 749.5 mg/kg, respectively. Concerning the occurrence of BAs, the accumulation in all CTFPs samples remained at low levels, whereas only in one sample from Guangxi the histamine content exceeded the critical level (50 mg/kg). In addition, six types of VNAs, including N-nitrosodimethylamine (NDMA), N-nitrosoethylmethylamine, N-nitrosopiperidine, N-nitrosopyrrolidine, N-nitrosomorpholine and N-nitrosodiphenylamine, were detected in a high number of samples. The NDMA content in 36.4% of the samples and the total VNAs content in about 63.6% of the samples were unacceptable. Principal component analysis indicated that the accumulation of NDMA and total VNAs was closely related with the content of histamine, tyramine and nitrate.
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Affiliation(s)
- Yuxin Wu
- College of Food Science and Engineering, Wuhan Polytechnic University, Wuhan, China
| | - Lerong Qin
- College of Food Science and Engineering, Wuhan Polytechnic University, Wuhan, China
| | - Jiwang Chen
- College of Food Science and Engineering, Wuhan Polytechnic University, Wuhan, China.,Ministry of Education and Hubei Key Laboratory for Processing and Transformation of Agricultural Products, Wuhan Polytechnic University, Wuhan, China.,National R&d Center for Se-richAgricultural Products Processing Technology, Wuhan Polytechnic University, Wuhan, China
| | - Haibin Wang
- College of Food Science and Engineering, Wuhan Polytechnic University, Wuhan, China.,Ministry of Education and Hubei Key Laboratory for Processing and Transformation of Agricultural Products, Wuhan Polytechnic University, Wuhan, China.,National R&d Center for Se-richAgricultural Products Processing Technology, Wuhan Polytechnic University, Wuhan, China
| | - E Liao
- College of Food Science and Engineering, Wuhan Polytechnic University, Wuhan, China.,Ministry of Education and Hubei Key Laboratory for Processing and Transformation of Agricultural Products, Wuhan Polytechnic University, Wuhan, China.,National R&d Center for Se-richAgricultural Products Processing Technology, Wuhan Polytechnic University, Wuhan, China
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20
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Xu Y, Zhu Y. Complete Replacement of Nitrite With a Lactobacillus fermentum on the Quality and Safety of Chinese Fermented Sausages. Front Microbiol 2021; 12:704302. [PMID: 34421863 PMCID: PMC8371913 DOI: 10.3389/fmicb.2021.704302] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2021] [Accepted: 07/12/2021] [Indexed: 11/25/2022] Open
Abstract
This study investigated the positive effects of complete replacement of nitrite with a Lactobacillus fermentum on the quality and safety of Chinese fermented sausages, and evaluated the risk of this strain. The effects of the strain on pH, color, nitrite, thiobarbituric acid reactive substances (TBARS), total volatile basenitrogen (TVB-N), metmyoglobin (Met-Mb), biological amines, free amino acid content, and sensory index have been studied. The results revealed that the strain reduced the pH of the sausages, which reduced the risk of food-borne pathogens, and accelerated the acidification and gelation process. The inoculation of the strain produced pink color similar to 50 mg/kg nitrite, significantly reducing the residual risk of nitrite in the sausages. In addition, the strain effectively improved quality and nutrition of the sausages through preventing fat oxidation, protein decomposition, and myoglobin oxidation and increasing free amino acid content. The harmful biogenic amines species of the treated sample were reduced, although the tyramine contents were higher than the control, and the contents of the two groups were all far below the specified limit (800 mg/kg). The sensory analysis showed that the strain enhanced the taste, flavor, sourness, and overall acceptability of the sample sausages. Therefore, replacing nitrite completely with the strain L. fermentum could be a potential strategy to produce healthier and safer acceptable sausages through decreasing the risk of nitrite and improving nutrition and quality of the sausages.
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Affiliation(s)
- Yuning Xu
- College of Food Science and Engineering, Qingdao Agricultural University, Qingdao, China
| | - Yinglian Zhu
- College of Food Science and Engineering, Qingdao Agricultural University, Qingdao, China
- Qingdao Special Food Research Institute, Qingdao, China
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21
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Shao X, Zhu M, Zhang Z, Huang P, Xu B, Chen C, Li P. N-nitrosodimethylamine reduction by Lactobacillus pentosus R3 in fermented cooked sausages. Food Control 2021. [DOI: 10.1016/j.foodcont.2021.107869] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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22
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Sun F, Wang H, Wang H, Xia X, Kong B. Impacts of pH and temperature on the conformation of a protease from Pediococcus pentosaceus R1 isolated from Harbin dry sausage. Lebensm Wiss Technol 2021. [DOI: 10.1016/j.lwt.2021.111056] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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23
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Shao X, Xu B, Chen C, Li P, Luo H. The function and mechanism of lactic acid bacteria in the reduction of toxic substances in food: a review. Crit Rev Food Sci Nutr 2021; 62:5950-5963. [PMID: 33683156 DOI: 10.1080/10408398.2021.1895059] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
N-nitrosamines, heterocyclic amines, polycyclic aromatic hydrocarbons, biogenic amines, and acrylamide are widely distributed and some of the most toxic substances detected in foods. Hence, reduction of these substances has attracted worldwide attention. Lactic acid bacteria (LAB) inoculation has been found to be an effective way to reduce these toxic substances. In this paper, the reduction of toxic substances by LAB and its underlying mechanisms have been described through the review of recent studies. LAB aids this reduction via different mechanisms. First, it can directly decrease these harmful substances through adsorption or degradation. Peptidoglycans on the cell wall of LAB can bind to heterocyclic amines, acrylamide, and polycyclic aromatic hydrocarbons. Second, LAB can indirectly decrease the content of toxic substances by reducing their precursors. Third, antioxidant properties of LAB also contribute to the reduction in toxic substances. Finally, LAB can suppress the growth of amino acid decarboxylase-positive bacteria, thus reducing the accumulation of biogenic amines and N-nitrosamines. Therefore, LAB can contribute to the decrease in toxic substances in food and improve food safety. Further research on increasing the reduction efficiency of LAB and deciphering the mechanisms at a molecular level needs to be carried out to obtain the complete picture.
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Affiliation(s)
- Xuefei Shao
- China Light Industry Key Laboratory of Meat Microbial Control and Utilization, Hefei University of Technology, Hefei, China.,School of Food and Biological Engineering, Hefei University of Technology, Hefei, China
| | - Baocai Xu
- China Light Industry Key Laboratory of Meat Microbial Control and Utilization, Hefei University of Technology, Hefei, China.,School of Food and Biological Engineering, Hefei University of Technology, Hefei, China
| | - Conggui Chen
- China Light Industry Key Laboratory of Meat Microbial Control and Utilization, Hefei University of Technology, Hefei, China.,School of Food and Biological Engineering, Hefei University of Technology, Hefei, China
| | - Peijun Li
- China Light Industry Key Laboratory of Meat Microbial Control and Utilization, Hefei University of Technology, Hefei, China.,School of Food and Biological Engineering, Hefei University of Technology, Hefei, China
| | - Huiting Luo
- China Light Industry Key Laboratory of Meat Microbial Control and Utilization, Hefei University of Technology, Hefei, China.,School of Food and Biological Engineering, Hefei University of Technology, Hefei, China
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Use of Starter Cultures in Foods from Animal Origin to Improve Their Safety. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph18052544. [PMID: 33806611 PMCID: PMC7967642 DOI: 10.3390/ijerph18052544] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Revised: 02/25/2021] [Accepted: 02/28/2021] [Indexed: 01/30/2023]
Abstract
Starter cultures can be defined as preparations with a large number of cells that include a single type or a mixture of two or more microorganisms that are added to foods in order to take advantage of the compounds or products derived from their metabolism or enzymatic activity. In foods from animal origin, starter cultures are widely used in the dairy industry for cheese, yogurt and other fermented dairy products, in the meat industry, mainly for sausage manufacture, and in the fishery industry for fermented fish products. Usually, microorganisms selected as starter culture are isolated from the native microbiota of traditional products since they are well adapted to the environmental conditions of food processing and are responsible to confer specific appearance, texture, aroma and flavour characteristics. The main function of starter cultures used in food from animal origin, mainly represented by lactic acid bacteria, consists in the rapid production of lactic acid, which causes a reduction in pH, inhibiting the growth of pathogenic and spoilage microorganisms, increasing the shelf-life of fermented foods. Also, production of other metabolites (e.g., lactic acid, acetic acid, propionic acid, benzoic acid, hydrogen peroxide or bacteriocins) improves the safety of foods. Since starter cultures have become the predominant microbiota, it allows food processors to control the fermentation processes, excluding the undesirable flora and decreasing hygienic and manufacturing risks due to deficiencies of microbial origin. Also, stater cultures play an important role in the chemical safety of fermented foods by reduction of biogenic amine and polycyclic aromatic hydrocarbons contents. The present review discusses how starter cultures contribute to improve the microbiological and chemical safety in products of animal origin, namely meat, dairy and fishery products.
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25
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Shao X, Xu B, Zhou H, Chen C, Li P. Insight into the mechanism of decreasing N-nitrosodimethylamine by Lactobacillus pentosus R3 in a model system. Food Control 2021. [DOI: 10.1016/j.foodcont.2020.107534] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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26
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Zhu Y, Guo L, Yang Q. Partial replacement of nitrite with a novel probiotic Lactobacillus plantarum on nitrate, color, biogenic amines and gel properties of Chinese fermented sausages. Food Res Int 2020; 137:109351. [DOI: 10.1016/j.foodres.2020.109351] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2020] [Revised: 05/02/2020] [Accepted: 05/24/2020] [Indexed: 10/24/2022]
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27
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Latilactobacillus curvatus: A Candidate Probiotic with Excellent Fermentation Properties and Health Benefits. Foods 2020; 9:foods9101366. [PMID: 32993033 PMCID: PMC7600897 DOI: 10.3390/foods9101366] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Revised: 09/18/2020] [Accepted: 09/21/2020] [Indexed: 02/02/2023] Open
Abstract
Latilactobacillus curvatus is a candidate probiotic that has been included in the list of recommended biological agents for certification by the European Food Safety Authority. According to the published genomic information, L. curvatus has several genes that encode metabolic pathways of carbohydrate utilization. In addition, there are some differences in cell surface complex related genes of L. curvatus from different sources. L. curvatus also has several genes that encode bacteriocin production, which can produce Curvacin A and Sakacin P. Due to its ability to produce bacteriocin, it is often used as a bioprotective agent in fermented meat products, to inhibit the growth of a variety of pathogenic and spoilage bacteria. L. curvatus exerts some probiotic effects, such as mediating the production of IL-10 by dendritic cells through NF-κB and extracellular regulated protein kinases (ERK) signals to relieve colitis in mice. This review is the first summary of the genomic and biological characteristics of L. curvatus. Our knowledge on its role in the food industry and human health is also discussed, with the aim of providing a theoretical basis for the development of applications of L. curvatus.
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Tian Y, Du H, Wang L, Li S, Zhang L, Zhang L. Nitrite Scavenging and Inhibition of N-Nitrosamines Formation by Phenolic Extracts From Diospyros lotus L. Leaves and Active Ingredients. Nat Prod Commun 2020. [DOI: 10.1177/1934578x20961186] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Diospyros lotus L. leaves are used as a functional tea and folk medicine in several Asian countries. This study aimed to evaluate the effects of phenolic extracts of the leaves on scavenging nitrite and inhibiting N-nitrosamines (NAs) formation and to determine the active ingredients responsible for these effects. Of the 7 fractions (Fr1-Fr7) prepared from the extract of D. lotus leaves, Fr5 contained the highest phenolic content and exhibited the strongest activity. Five active ingredients of Fr5 were discovered, and 4 of them were identified as myricitrin (Mytr), myricetin (Myt), myricetin-3- O-β-d-glucoside (Myt-Glc), and myricetin-3- O-β-d-galactoside (Myt-Gal). The content of Mytr was much higher than those of the other 3 ingredients, both in Fr5 and extracts of D. lotus leaves. Finally, Mytr and Myt were proved to have stronger activities by the 1,1-diphenyl-2-trinitrophenyl hydrazine scavenging, nitrite scavenging, and inhibition of NAs formation assays. These results indicated that Mytr was the main active ingredient of D. lotus leaves. Myt, Mytr, and Fr5 from the leaves could be used as natural agents for antioxidant, nitrite scavenging, and inhibition of NAs formation in food and the human body.
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Affiliation(s)
- YanHua Tian
- Institute of Molecular Science, Modern Research Center for Traditional Chinese Medicine, Institute of Environmental Science, Shanxi University, Taiyuan, Shanxi Province, P. R. China
- Department of Food Engineering, Shanxi Pharmaceutical Vocational College, Taiyuan, Shanxi Province, P. R. China
| | - HuiZhi Du
- Institute of Molecular Science, Modern Research Center for Traditional Chinese Medicine, Institute of Environmental Science, Shanxi University, Taiyuan, Shanxi Province, P. R. China
| | - Li Wang
- Institute of Molecular Science, Modern Research Center for Traditional Chinese Medicine, Institute of Environmental Science, Shanxi University, Taiyuan, Shanxi Province, P. R. China
| | - ShiFei Li
- Institute of Molecular Science, Modern Research Center for Traditional Chinese Medicine, Institute of Environmental Science, Shanxi University, Taiyuan, Shanxi Province, P. R. China
| | - Lu Zhang
- Institute of Molecular Science, Modern Research Center for Traditional Chinese Medicine, Institute of Environmental Science, Shanxi University, Taiyuan, Shanxi Province, P. R. China
| | - LiWei Zhang
- Institute of Molecular Science, Modern Research Center for Traditional Chinese Medicine, Institute of Environmental Science, Shanxi University, Taiyuan, Shanxi Province, P. R. China
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Gan X, Zhao L, Li J, Tu J, Wang Z. Effects of partial replacement of NaCl with KCl on bacterial communities and physicochemical characteristics of typical Chinese bacon. Food Microbiol 2020; 93:103605. [PMID: 32912580 DOI: 10.1016/j.fm.2020.103605] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2020] [Revised: 07/15/2020] [Accepted: 07/23/2020] [Indexed: 11/17/2022]
Abstract
This work aimed to determine the effects of partial substitution of NaCl with 0% (control), 30%, 50%, and 70% of KCl on the bacterial communities, proteolysis and lipid oxidation of Chinese bacon during processing. The proportion of genus Lactobacillus increased from 22.45% (fresh meat) to 72.78%, 81.64%, 76.53% and 85.63% at the end of processing for 0%, 30%, 50% and 70% KCl replacement samples, respectively. During the processing, Lactobacillus gradually became the dominant one, and higher the KCl ratio, more rapid was the process. After salting, the TBARS of control was markedly higher (P < 0.05) than that of the others, while a similar lipid oxidation level (P > 0.05) was observed at the end of processing for different groups. After salting, there was no difference in total free amino acids (TFAA) content among four treatments (P > 0.05), whereas KCl replacement samples shared significantly higher (P < 0.05) values than control at the end of processing. Redundancy analysis and Pearson correlation showed positive correlation between Lactobacillus versus TBARS and TFAA. Partial replacement of NaCl with KCl could, directly or subsequently by promoting the growth of Lactobacillus, influence proteolysis and lipid oxidation over the manufacturing process.
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Affiliation(s)
- Xiao Gan
- College of Life Science & Biotechnology, Mianyang Teacher' College, Mianyang, 621006, Sichuan, China
| | - Ling Zhao
- College of Life Science & Biotechnology, Mianyang Teacher' College, Mianyang, 621006, Sichuan, China
| | - Jungang Li
- College of Life Science & Biotechnology, Mianyang Teacher' College, Mianyang, 621006, Sichuan, China
| | - Juncai Tu
- Department of Wine, Food and Molecular Biosciences, Lincoln University, P O Box 84, Lincoln 7647, Christchurch, New Zealand
| | - Zhaoming Wang
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, 230009, Anhui, China.
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30
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Ma H, Yu Y, Wang M, Li Z, Xu H, Tian C, Zhang J, Ye X, Li X. Correlation between microbes and colorectal cancer: tumor apoptosis is induced by sitosterols through promoting gut microbiota to produce short-chain fatty acids. Apoptosis 2020; 24:168-183. [PMID: 30506375 DOI: 10.1007/s10495-018-1500-9] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
The diversity of the bacterial community in the gut is closely related to human health. Gut microbes accomplish multiple physiological and biochemical functions. Sitosterols are a series of phytochemicals that have multiple pharmacological activities and are used as cholesterol-lowering drugs in clinical practice. In this study, we investigated the roles of bacteria and short-chain fatty acids (SCFAs) to the anti-colorectal cancer (anti-CRC) effects of sitosterols in BALB/c nude mice. Sitosterols were administered orally and gut microbiota composition and intestinal SCFAs changes were analyzed. The correlation between gut microbiota, SCFAs, and tumor apoptosis was assessed by a series of in vivo and in vitro experiments. Tumor growth in the mice was inhibited by sitosterol-treatment. Mechanistic studies revealed that sitosterol-treatment reduced the expression of PI3K/Akt, promoted the activation of Bad, decreased Bcl-xl, and enhanced cyto-c release, leading to caspase-9 and caspase-3 activation, PARP cleavage, and apoptosis. 16S rDNA analysis revealed that the diversity of microbiota, particularly phyla Bacteroidetes and Firmicutes, reduced dramatically in the gut of tumor-bearing mice, whilst treatment with sitosterols reversed these changes. The levels of SCFAs in the fecal samples of sitosterol-treated mice increased, leading to cancer cell apoptosis in vitro. Moreover, tumor apoptosis was induced after mice received a daily dose of 2 × 108 CFU/0.2 mL Lactobacillus pentosus or 20 mM/0.2 mL SCFAs. Taken together, these results demonstrate that sitosterols maintain a diverse microbial environment and enrich the content of L. pentosus in the gut, leading to the production of beneficial metabolites including SCFAs that promote tumor apoptosis.
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Affiliation(s)
- Hang Ma
- Chongqing Productivity Promotion Center for the Modernization of Chinese Traditional Medicine, School of Pharmaceutical Sciences, Southwest University, Chongqing, 400716, China
| | - Yang Yu
- Chongqing Productivity Promotion Center for the Modernization of Chinese Traditional Medicine, School of Pharmaceutical Sciences, Southwest University, Chongqing, 400716, China
| | - Meimei Wang
- Chongqing Productivity Promotion Center for the Modernization of Chinese Traditional Medicine, School of Pharmaceutical Sciences, Southwest University, Chongqing, 400716, China
| | - Zhaoxing Li
- Chongqing Productivity Promotion Center for the Modernization of Chinese Traditional Medicine, School of Pharmaceutical Sciences, Southwest University, Chongqing, 400716, China.,McLean Hospital, Harvard Medical School, Belmont, MA, 02478, USA
| | - Heshan Xu
- Chongqing Engineering Research Center for Sweet Potato, School of Life Sciences, Southwest University, Chongqing, 400715, China
| | - Cheng Tian
- Chongqing Productivity Promotion Center for the Modernization of Chinese Traditional Medicine, School of Pharmaceutical Sciences, Southwest University, Chongqing, 400716, China
| | - Jian Zhang
- Chongqing Engineering Research Center for Sweet Potato, School of Life Sciences, Southwest University, Chongqing, 400715, China
| | - Xiaoli Ye
- Chongqing Engineering Research Center for Sweet Potato, School of Life Sciences, Southwest University, Chongqing, 400715, China
| | - Xuegang Li
- Chongqing Productivity Promotion Center for the Modernization of Chinese Traditional Medicine, School of Pharmaceutical Sciences, Southwest University, Chongqing, 400716, China.
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31
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Sun C, Wang R, Wang T, Li Q. Primary evaluation of nine volatile N-nitrosamines in raw red meat from Tianjin, China, by HS-SPME-GC–MS. Food Chem 2020; 310:125945. [DOI: 10.1016/j.foodchem.2019.125945] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2019] [Revised: 11/17/2019] [Accepted: 11/21/2019] [Indexed: 01/08/2023]
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Redox-derivatization reaction-based rapid and sensitive determination of nitrite using resonance Rayleigh scattering method. Anal Bioanal Chem 2020; 412:1087-1096. [PMID: 31900527 DOI: 10.1007/s00216-019-02333-9] [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: 10/01/2019] [Revised: 11/14/2019] [Accepted: 12/05/2019] [Indexed: 01/15/2023]
Abstract
It remains a problem for direct detection of small inorganic nitrite ions using resonance Rayleigh scattering (RRS) method based on the direct dye-binding reaction. In the present study, a redox-derivatization reaction taking only 5 min was introduced prior to nitrite detection. In the redox-derivatization reaction, nitrite ions were reduced by excess iodine ions to generate triiodide ions (I3-), which were further derivatized with a cationic dye (basic violet 1, BV1) to form the ion associates of I3--BV1. Therefore, the RRS signal was significantly enhanced, resulting from the increase of particle size and resonance-enhanced scattering effect. The analytical procedure was performed by just mixing nitrite, oxidant, acid, and dye all-in-one, avoiding the tediousness of a multi-step process or the preparation of nanoparticles. The whole detection process including the redox-derivatization reaction was less than 6 min. The reaction conditions such as concentration of hydrochloric acid, potassium iodide, and BV1, reaction time, and temperature were investigated. Under optimum conditions, the concentration of nitrite was linear with an RRS signal of I3--BV1 ion associates at 320 nm in the range of 0.015-1.2 mg/L. The limit of detection (LOD) was calculated to be 3.0 μg/L. The RRS method was applied to the determination of nitrite in real samples such as pork sausage, milk powder, and water with recovery of 95.2-112%. With advantages of rapidness, high sensitivity, and high selectivity, the method indicates potential applicability for detection of nitrite in complex samples. The method also provides an instructive protocol for detection of analytes that generate no/weak RRS enhancement after the direct dye-binding reaction. Graphical abstract.
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Huang P, Shao X, Zhu M, Xu B, Chen C, Li P. Sucrose enhances colour formation in dry sausages by up-regulating gene expression of nitric oxide synthase in Staphylococcus vitulinus. Int J Food Microbiol 2019; 315:108419. [PMID: 31734616 DOI: 10.1016/j.ijfoodmicro.2019.108419] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2019] [Revised: 10/30/2019] [Accepted: 11/02/2019] [Indexed: 12/20/2022]
Abstract
The effects of glucose and sucrose on the gene expression of nitric oxide synthase (NOS) in Staphylococcus vitulinus and colour formation in dry sausages were investigated. The results showed that sucrose addition promoted nitric oxide (NO) production in media when compared with glucose. In addition, sucrose could up-regulate nos (encoding NOS) and katA (encoding catalase KatA) gene expression by enhancing oxidative stress levels. In the sausages inoculated with S. vitulinus, a*-values (indicating redness) of the sausages with added sucrose were higher than those of samples with added glucose (P < 0.05) but did not differ from those in the nitrite treatment group (P > 0.05). The UV-vis spectra results showed that nitrosylmyoglobin (NO-Mb) was formed in the sausages with either S. vitulinus or nitrite added. In the S. vitulinus-inoculated sausages, sucrose addition led to a higher NO-Mb content than that after glucose addition, which was attributed to up-regulation of the nos gene. This study provides a potential method to enhance NO yield in S. vitulinus and colour formation in dry sausages without nitrite addition.
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Affiliation(s)
- Pan Huang
- Engineering Research Center of Bio-process, Ministry of Education, Hefei University of Technology, Hefei 230009, China; School of Food and Biological Engineering, Hefei University of Technology, Hefei 230009, China
| | - Xuefei Shao
- Engineering Research Center of Bio-process, Ministry of Education, Hefei University of Technology, Hefei 230009, China; School of Food and Biological Engineering, Hefei University of Technology, Hefei 230009, China
| | - Miaomiao Zhu
- Engineering Research Center of Bio-process, Ministry of Education, Hefei University of Technology, Hefei 230009, China; School of Food and Biological Engineering, Hefei University of Technology, Hefei 230009, China
| | - Baocai Xu
- Engineering Research Center of Bio-process, Ministry of Education, Hefei University of Technology, Hefei 230009, China; School of Food and Biological Engineering, Hefei University of Technology, Hefei 230009, China
| | - Conggui Chen
- Engineering Research Center of Bio-process, Ministry of Education, Hefei University of Technology, Hefei 230009, China; School of Food and Biological Engineering, Hefei University of Technology, Hefei 230009, China
| | - Peijun Li
- Engineering Research Center of Bio-process, Ministry of Education, Hefei University of Technology, Hefei 230009, China; School of Food and Biological Engineering, Hefei University of Technology, Hefei 230009, China.
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Wen R, Hu Y, Zhang L, Wang Y, Chen Q, Kong B. Effect of NaCl substitutes on lipid and protein oxidation and flavor development of Harbin dry sausage. Meat Sci 2019; 156:33-43. [DOI: 10.1016/j.meatsci.2019.05.011] [Citation(s) in RCA: 76] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2019] [Revised: 05/12/2019] [Accepted: 05/12/2019] [Indexed: 11/16/2022]
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35
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Sun F, Li Q, Liu H, Kong B, Liu Q. Purification and biochemical characteristics of the protease from Lactobacillus brevis R4 isolated from Harbin dry sausages. Lebensm Wiss Technol 2019. [DOI: 10.1016/j.lwt.2019.108287] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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36
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Lv J, Yang Z, Xu W, Li S, Liang H, Ji C, Yu C, Zhu B, Lin X. Relationships between bacterial community and metabolites of sour meat at different temperature during the fermentation. Int J Food Microbiol 2019; 307:108286. [DOI: 10.1016/j.ijfoodmicro.2019.108286] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2019] [Revised: 07/25/2019] [Accepted: 07/30/2019] [Indexed: 12/01/2022]
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37
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Sun F, Hu Y, Chen Q, Kong B, Liu Q. Purification and biochemical characteristics of the extracellular protease from Pediococcus pentosaceus isolated from Harbin dry sausages. Meat Sci 2019; 156:156-165. [PMID: 31170569 DOI: 10.1016/j.meatsci.2019.05.030] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2019] [Revised: 05/23/2019] [Accepted: 05/28/2019] [Indexed: 11/26/2022]
Abstract
This study investigated the purification and biochemical characteristics of the protease produced by Pediococcus pentosaceus isolated from Harbin dry sausages. The optimized fermented conditions were as follows: fermentation time 36 h, initial pH 5 and fermentation temperature 30 °C. A 29.6 kDa extracellular protease was purified using ammonium sulphate deposition, ion exchange layer system and gel filtration. The protease produced by P. pentosaceus had a certain pH and thermal stability at pH 6 and 30 °C. The microbial protease activity could be inhibited by ethylene diamine tetraacetic acid disodium salt (EDTA). Vmax and Km of the protease were 43.9 mg/min and 8.3 mg/mL, respectively. Sodium dodecyl sulphate-polyacrylamide gel electrophoresis (SDS-PAGE) reflected the ability of the protease to hydrolyse sarcoplasmic and myofibrillar proteins, particularly those of myosin heavy chain, paramyosin, actin, phosphorylase and creatine kinase-M types. 3D structure modelling of the P. pentosaceus protease found two domains in the protease protein and the correlation of the active sites with protease properties and substrate specificity. In conclusion, P. pentosaceus can be used as a starter culture or enzyme producing strain for inoculation in Harbin dry sausages.
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Affiliation(s)
- Fangda Sun
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, China
| | - Yingying Hu
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, China
| | - Qian Chen
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, China
| | - Baohua Kong
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, China.
| | - Qian Liu
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, China.
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38
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Zhu Y, Wang P, Guo L, Wang J, Han R, Sun J, Yang Q. Effects of partial replacement of sodium nitrite with
Lactobacillus pentosus
inoculation on quality of fermented sausages. J FOOD PROCESS PRES 2019. [DOI: 10.1111/jfpp.13932] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Affiliation(s)
- Yinglian Zhu
- College of Food Science and Engineering Qingdao Agricultural University Qingdao China
| | - Peng Wang
- College of Food Science and Engineering Qingdao Agricultural University Qingdao China
| | - Liping Guo
- College of Food Science and Engineering Qingdao Agricultural University Qingdao China
| | - Jun Wang
- College of Food Science and Engineering Qingdao Agricultural University Qingdao China
| | - Rongwei Han
- College of Food Science and Engineering Qingdao Agricultural University Qingdao China
| | - Jingxin Sun
- College of Food Science and Engineering Qingdao Agricultural University Qingdao China
| | - Qingli Yang
- College of Food Science and Engineering Qingdao Agricultural University Qingdao China
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39
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Sun F, Sun Q, Zhang H, Kong B, Xia X. Purification and biochemical characteristics of the microbial extracellular protease from Lactobacillus curvatus isolated from Harbin dry sausages. Int J Biol Macromol 2019; 133:987-997. [PMID: 31029624 DOI: 10.1016/j.ijbiomac.2019.04.169] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2019] [Revised: 04/24/2019] [Accepted: 04/24/2019] [Indexed: 01/05/2023]
Abstract
This study investigates the purification and biochemical characteristics of the protease secreted by Lactobacillus curvatus R5, which was isolated from Harbin dry sausages. The optimized fermentation conditions were fermentation time 36 h, initial pH 6 and fermentation temperature 37 °C. An extracellular protease was purified using ammonium sulfate precipitation, ion-exchange layer and gel filtration. Sodium dodecyl sulphate-polyacrylamide gel electrophoresis (SDS-PAGE) analysis showed that molecular weight of the purified protease was 45.3 kDa. Protease produced by L. curvatus R5 reached a higher relative protease activity at pH 6, 40 °C, and the purified protease exhibited pH and thermal stability at pH 6 and 40 °C. The microbial protease activity can be inhibited by ethylene diamine tetraacetic acid disodium salt (EDTA). The Vmax and Km of the protease were 53 mg/min and 15.9 mg/mL, respectively. SDS-PAGE reflects the ability of the protease to hydrolyse myofibrillar protein and sarcoplasmic protein, especially on myosin heavy chain, actin, myosin light chain and phosphorylase. The 3D structure and the Ramachandran plot of L. curvatus R5 protease was obtained by homology modelling. The Ramachandran plot analysis revealed that the purified protease was composed of 366 amino acids, and its residues in favoured, allowed, generously allowed and disallowed regions were 84.6%, 11.3%, 3.2% and 0.9% residues, respectively. Molecular docking showed that the substrate actin bound to the protease active site by hydrogen bonding and hydrophobic interaction. This research provides a basis for understanding the enzymatic properties of L. curvatus R5 protease. In conclusion, L. curvatus R5 can be used as a starter culture or protease-producing strain to inoculate Harbin dry sausages.
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Affiliation(s)
- Fangda Sun
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, China
| | - Qinxiu Sun
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, China
| | - Huan Zhang
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, China
| | - Baohua Kong
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, China.
| | - Xiufang Xia
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, China.
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40
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Coelho SR, Lima ÍA, Martins ML, Benevenuto Júnior AA, Torres Filho RDA, Ramos ADLS, Ramos EM. Application of Lactobacillus paracasei LPC02 and lactulose as a potential symbiotic system in the manufacture of dry-fermented sausage. Lebensm Wiss Technol 2019. [DOI: 10.1016/j.lwt.2018.12.045] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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41
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Bao R, Liu S, Ji C, Liang H, Yang S, Yan X, Zhou Y, Lin X, Zhu B. Shortening Fermentation Period and Quality Improvement of Fermented Fish, Chouguiyu, by Co-inoculation of Lactococcus lactis M10 and Weissella cibaria M3. Front Microbiol 2018; 9:3003. [PMID: 30662432 PMCID: PMC6327836 DOI: 10.3389/fmicb.2018.03003] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2018] [Accepted: 11/20/2018] [Indexed: 11/13/2022] Open
Abstract
Chouguiyu, a Chinese traditional fermented fish, is famous for its uniquely strong odor and desirable taste. However, traditional spontaneous fermentation often resulted in contamination and unstable quality of products. In this study, individual or conjunctive inoculation of two indigenous lactic acid bacteria (LAB), Lactococcus lactis M10 and Weissella cibaria M3, was tested for their effect on improving Chouguiyu's quality. It was shown that inoculation would not affect the system's pH, while increased the total bacteria count and lactic acid bacteria amounts. Matrix-assisted laser desorption/ionization time-of-flight mass (MALDI-TOF) analysis results revealed that Lactoc. lactis M10 and W. cibaria M3 could quickly occupy a dominant position in the ecosystem, and Lactoc. lactis M10 played an important role in the control of spoilage bacteria. Volatile basic nitrogen (TVB-N), thiobarbituric acid reactive substances (TBARS), and biogenic amines results also showed that Lactoc. lactis M10 had a positive effect on improving the product's quality. Co-inoculation of Lactoc. lactis M10 and W. cibaria M3 could promote the formation of flavor according to the E-nose and gas chromatography-mass spectrometer (GC-MS) analyses, especially for the aroma-active and key volatile compounds. PCA plots of E-nose and hierarchical clustering analysis of GC-MS profiles revealed that the co-inoculation sample at the fifth day (LW5) was the most similar to the natural fermentation sample at the seventh day (C7). The overall acceptance of LW5 was also the closest to that of C7 in sensory evaluation. In conclusion, mixed starter culture was shown to have a good effect on improving product quality and enhancing flavor with fermentation time shortened by 29%.
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Affiliation(s)
- Ruiqi Bao
- National Engineering Research Center of Seafood, Dalian Polytechnic University, Dalian, China
| | - Sasa Liu
- National Engineering Research Center of Seafood, Dalian Polytechnic University, Dalian, China
| | - Chaofan Ji
- National Engineering Research Center of Seafood, Dalian Polytechnic University, Dalian, China
| | - Huipeng Liang
- National Engineering Research Center of Seafood, Dalian Polytechnic University, Dalian, China
| | - Song Yang
- Institute of Agro-products Processing, Anhui Academy of Agricultural Science, Hefei, China
| | - Xiaoming Yan
- Institute of Agro-products Processing, Anhui Academy of Agricultural Science, Hefei, China
| | - Yingqin Zhou
- Institute of Agro-products Processing, Anhui Academy of Agricultural Science, Hefei, China
| | - Xinping Lin
- National Engineering Research Center of Seafood, Dalian Polytechnic University, Dalian, China
| | - Beiwei Zhu
- National Engineering Research Center of Seafood, Dalian Polytechnic University, Dalian, China
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42
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Liao E, Xu Y, Jiang Q, Xia W. Effects of inoculating autochthonous starter cultures on biogenic amines accumulation of Chinese traditional fermented fish. J FOOD PROCESS PRES 2018. [DOI: 10.1111/jfpp.13694] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- E Liao
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology; Jiangnan University; Wuxi China
| | - Yanshun Xu
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology; Jiangnan University; Wuxi China
| | - Qixing Jiang
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology; Jiangnan University; Wuxi China
| | - Wenshui Xia
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology; Jiangnan University; Wuxi China
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43
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Liao E, Xu Y, Jiang Q, Xia W. Effects of inoculating autochthonous starter cultures on N-nitrosodimethylamine and its precursors formation during fermentation of Chinese traditional fermented fish. Food Chem 2018; 271:174-181. [PMID: 30236663 DOI: 10.1016/j.foodchem.2018.07.186] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2018] [Revised: 07/24/2018] [Accepted: 07/25/2018] [Indexed: 11/18/2022]
Abstract
This study investigated the effects of Lactobacillus plantarum 120, Saccharomyces cerevisiae 2018 and Staphylococcus xylosus 135 inoculation on N-nitrosodimethylamine (NDMA) and its precursors formation, and on microbiological characteristics of Chinese traditional fermented fish products (CTFPs). The results indicated that three strains could directly degrade NDMA in culture broth, and the highest degradation rate was observed in L. plantarum 120. The lactic acid bacteria counts in samples inoculated with L. plantarum 120 and mixed starter cultures were significantly (P < 0.05) higher than the others during the initial and middle fermentation stages (≤3 weeks). The final contents of total volatile base nitrogen, trimethylamine, dimethylamine, nitrite and NDMA in inoculated samples were significantly (P < 0.05) lower than those in spontaneous fermentation samples. According to these results, the inoculation with autochthonous starter cultures was a promising method to inhibit the NDMA and its precursors accumulation in CTFPs during fermentation process.
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Affiliation(s)
- E Liao
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Yanshun Xu
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Qixing Jiang
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Wenshui Xia
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, China.
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