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Yin Y, Lou T, Song W, Wang C, Wang J. Production of medium chain fatty acids from fermentation of antibiotic residuals: Fate of antibiotic resistance genes. BIORESOURCE TECHNOLOGY 2023; 379:129056. [PMID: 37059340 DOI: 10.1016/j.biortech.2023.129056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Revised: 04/09/2023] [Accepted: 04/11/2023] [Indexed: 05/03/2023]
Abstract
The potential of antibiotic resistance genes (ARGs) amplification restricts the biological recovery of antibiotic fermentation residues (AFRs) through two-stage anaerobic fermentation. This study explored the fate of ARGs during the fermentation of AFRs that comprising of acidification and chain elongation (CE). Results showed that with the alteration of fermentation process from acidification to CE, microbial richness was significantly increased, total abundance of ARGs was slightly decreased by 1.84%, and the significant negative correlations between ARGs and microbes were increased, implied the inhibitory effect of CE microbes to ARGs amplification. However, the total abundance of mobile genetic elements (MGEs) was increased by 24.5%, indicating that the potential of gene horizontal transfer of ARGs increased. This work suggested that two-stage anaerobic fermentation could effectively restrict the ARGs amplification, but more concerns are needed for the long-term dissemination of ARGs.
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Affiliation(s)
- Yanan Yin
- Division of Materials Chemistry and New Energy Technology, INET, Tsinghua University, Beijing 100084, PR China; Laboratory of Environmental Technology, INET, Tsinghua University, Beijing 100084, PR China
| | - Tianru Lou
- Laboratory of Environmental Technology, INET, Tsinghua University, Beijing 100084, PR China
| | - Weize Song
- Laboratory of Low Carbon Energy, Tsinghua University, Beijing 100084, PR China
| | - Cheng Wang
- Division of Materials Chemistry and New Energy Technology, INET, Tsinghua University, Beijing 100084, PR China
| | - Jianlong Wang
- Laboratory of Environmental Technology, INET, Tsinghua University, Beijing 100084, PR China; Beijing Key Laboratory of Radioactive Waste Treatment, INET, Tsinghua University, Beijing 100084, PR China.
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Ma J, Nie Y, Zhang L, Xu Y. Ratio of Histamine-Producing/Non-Histamine-Producing Subgroups of Tetragenococcus halophilus Determines the Histamine Accumulation during Spontaneous Fermentation of Soy Sauce. Appl Environ Microbiol 2023; 89:e0188422. [PMID: 36802225 PMCID: PMC10056960 DOI: 10.1128/aem.01884-22] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Accepted: 01/17/2023] [Indexed: 02/23/2023] Open
Abstract
Strain specificity (within-species variation) of microorganisms occurs widely in nature. It might affect microbiome construction and function in a complex microbial environment. Tetragenococcus halophilus, a halophilic bacterium that generally is used in high salt food fermentation, consists of two histamine-producing and non-histamine-producing subgroups. It is unclear whether and how the strain specificity of histamine-producing capacity influences the microbial community function during food fermentation. Here, based on systematic bioinformatic analysis, histamine production dynamic analysis, clone library construction analysis, and cultivation-based identification, we identified that T. halophilus is the focal histamine-producing microorganism during soy sauce fermentation. Furthermore, we discovered that a larger number and ratio of histamine-producing subgroups of T. halophilus significantly contributed more histamine production. We were able to artificially decrease the ratio of histamine-producing to non-histamine-producing subgroups of T. halophilus in complex soy sauce microbiota and realized the reduction of histamine by 34%. This study emphasizes the significance of strain specificity in regulating microbiome function. This study investigated how strain specificity influenced microbial community function and developed an efficient technique for histamine control. IMPORTANCE Inhibiting the production of microbiological hazards under the assumption of stable and high-quality fermentation is a critical and time-consuming task for the food fermentation industry. For spontaneously fermented food, it can be realized theoretically by finding and controlling the focal hazard-producing microorganism in complex microbiota. This work used histamine control in soy sauce as a model and developed a system-level approach to identify and regulate the focal hazard-producing microorganism. We discovered that the strain specificity of focal hazard-producing microorganisms had an important impact on hazard accumulation. Microorganisms frequently exhibit strain specificity. Strain specificity is receiving increasing interest since it determines not only microbial robustness but also microbial community assembly and microbiome function. This study creatively explored how the strain specificity of microorganisms influenced microbiome function. In addition, we believe that this work provides an excellent model for microbiological hazard control which can promote future work in other systems.
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Affiliation(s)
- Jinjin Ma
- Lab of Brewing Microbiology and Applied Enzymology, Key Laboratory of Industrial Biotechnology of Ministry of Education and School of Biotechnology, Jiangnan University, Wuxi, Jiangsu, China
| | - Yao Nie
- Lab of Brewing Microbiology and Applied Enzymology, Key Laboratory of Industrial Biotechnology of Ministry of Education and School of Biotechnology, Jiangnan University, Wuxi, Jiangsu, China
| | - Lijie Zhang
- Lab of Brewing Microbiology and Applied Enzymology, Key Laboratory of Industrial Biotechnology of Ministry of Education and School of Biotechnology, Jiangnan University, Wuxi, Jiangsu, China
| | - Yan Xu
- Lab of Brewing Microbiology and Applied Enzymology, Key Laboratory of Industrial Biotechnology of Ministry of Education and School of Biotechnology, Jiangnan University, Wuxi, Jiangsu, China
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Yin Y, Wang J. Enhanced medium-chain fatty acids production from Cephalosporin C antibiotic fermentation residues by ionizing radiation pretreatment. JOURNAL OF HAZARDOUS MATERIALS 2022; 440:129714. [PMID: 35944433 DOI: 10.1016/j.jhazmat.2022.129714] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Revised: 07/24/2022] [Accepted: 08/02/2022] [Indexed: 06/15/2023]
Abstract
Antibiotic fermentation residues (AFRs) have been classified as hazardous waste in China. Anaerobic fermentation may be a good approach for AFRs treatment, through which value-added chemicals could be obtained simultaneously. This study firstly explored medium-chain fatty acids (MCFAs) production from AFRs through two-stage anaerobic fermentation, and gamma radiation was adopted for AFRs pretreatment. The results showed that both antibiotics removal and MCFAs production from AFRs were significantly promoted by gamma radiation pretreatment. No residual Cephalosporin C (CEP-C) was detected in gamma radiation treated groups after fermentation. Highest MCFAs concentration of 90.55 mmol C/L was obtained in 50 kGy treated group, which was 2.22 times of the control group. Genera that were positively correlated with MCFAs production were enriched in gamma radiation treated groups, like genus Paraclostridium, Terrisporobacter, Caproiciproducens and Sporanaerobacter, while genera that were negatively correlated with MCFAs production were diminished during the chain elongation process, like genus Bacteroides and NK4A214_group. Enzymes analysis suggested that the promoted MCFAs production was induced by the enrichment of functional enzymes involved in Acetyl-CoA formation and RBO pathway. This work suggested that gamma radiation pretreatment and two-stage anaerobic fermentation could achieve the dual benefits of AFRs treatment and value-added chemicals recovery.
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Affiliation(s)
- Yanan Yin
- Laboratory of Environmental Technology, INET, Tsinghua University, Beijing 100084, PR China; Beijing Key Laboratory of Radioactive Waste Treatment, INET, Tsinghua University, Beijing 100084, PR China
| | - Jianlong Wang
- Laboratory of Environmental Technology, INET, Tsinghua University, Beijing 100084, PR China; Beijing Key Laboratory of Radioactive Waste Treatment, INET, Tsinghua University, Beijing 100084, PR China.
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Yin Y, Wang J. Production of medium-chain fatty acids by co-fermentation of antibiotic fermentation residue with fallen Ginkgo leaves. BIORESOURCE TECHNOLOGY 2022; 360:127607. [PMID: 35835417 DOI: 10.1016/j.biortech.2022.127607] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Revised: 07/06/2022] [Accepted: 07/07/2022] [Indexed: 06/15/2023]
Abstract
The co-fermentation of antibiotic fermentation residues (AFRs) and fallen Ginkgo leaves at C/N ratios of 10-60 was conducted for medium-chain fatty acids (MCFA) production. It was found that a proper C/N ratio could largely promote the MCFA accumulation. Group with C/N ratio of 50 exhibited highest MCFA production of 133.14 mmol C/L, which was 42 %-121 % higher than the other groups. Through the co-fermentation, substrate condition was optimized with rich micro-nutrients in AFRs and abundant polysaccharides in Ginkgo leaves, the hydrolysis of leaves was promoted by the active microbes in AFRs, and the predominance of CE microbes was also stimulated with the dilution of AFRs. The increased C/N ratio significantly affected the SCFA producers like genus Escherichia Shigella and Proteiniphilum, and enriched CE microbes like genus Romboutsia, Eubacterium and Clostridium_sensu_stricto_12. Functional enzymes analysis showed that both reverse β oxidation and fatty acid biosynthesis pathways were strengthened with the increased C/N ratio.
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Affiliation(s)
- Yanan Yin
- Laboratory of Environmental Technology, INET, Tsinghua University, Beijing 100084, PR China; Beijing Key Laboratory of Radioactive Waste Treatment, INET, Tsinghua University, Beijing 100084, PR China
| | - Jianlong Wang
- Laboratory of Environmental Technology, INET, Tsinghua University, Beijing 100084, PR China; Beijing Key Laboratory of Radioactive Waste Treatment, INET, Tsinghua University, Beijing 100084, PR China.
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Arbab Sakandar H, Chen Y, Peng C, Chen X, Imran M, Zhang H. Impact of Fermentation on Antinutritional Factors and Protein Degradation of Legume Seeds: A Review. FOOD REVIEWS INTERNATIONAL 2021. [DOI: 10.1080/87559129.2021.1931300] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Hafiz Arbab Sakandar
- Key Laboratory of Dairy Biotechnology and Engineering, Ministry of Education, Inner Mongolia Agricultural University, Hohhot, P. R. China
- Key Laboratory of Dairy Products Processing, Ministry of Agriculture and Rural Affairs, Inner Mongolia Agricultural University, Hohhot, P. R. China
- Collaborative Innovative Center of Ministry of Education for Lactic Acid Bacteria and Fermented Dairy Products, Inner Mongolia Agricultural University, Hohhot, P. R. China
- Inner Mongolia Key Laboratory of Dairy Biotechnology and Engineering, Inner Mongolia Agricultural University, Hohhot, China
| | - Yongfu Chen
- Key Laboratory of Dairy Biotechnology and Engineering, Ministry of Education, Inner Mongolia Agricultural University, Hohhot, P. R. China
- Key Laboratory of Dairy Products Processing, Ministry of Agriculture and Rural Affairs, Inner Mongolia Agricultural University, Hohhot, P. R. China
- Collaborative Innovative Center of Ministry of Education for Lactic Acid Bacteria and Fermented Dairy Products, Inner Mongolia Agricultural University, Hohhot, P. R. China
- Inner Mongolia Key Laboratory of Dairy Biotechnology and Engineering, Inner Mongolia Agricultural University, Hohhot, China
| | - Chuantao Peng
- Key Laboratory of Dairy Biotechnology and Engineering, Ministry of Education, Inner Mongolia Agricultural University, Hohhot, P. R. China
- Key Laboratory of Dairy Products Processing, Ministry of Agriculture and Rural Affairs, Inner Mongolia Agricultural University, Hohhot, P. R. China
- Collaborative Innovative Center of Ministry of Education for Lactic Acid Bacteria and Fermented Dairy Products, Inner Mongolia Agricultural University, Hohhot, P. R. China
- Inner Mongolia Key Laboratory of Dairy Biotechnology and Engineering, Inner Mongolia Agricultural University, Hohhot, China
| | - Xia Chen
- Key Laboratory of Dairy Biotechnology and Engineering, Ministry of Education, Inner Mongolia Agricultural University, Hohhot, P. R. China
- Key Laboratory of Dairy Products Processing, Ministry of Agriculture and Rural Affairs, Inner Mongolia Agricultural University, Hohhot, P. R. China
- Collaborative Innovative Center of Ministry of Education for Lactic Acid Bacteria and Fermented Dairy Products, Inner Mongolia Agricultural University, Hohhot, P. R. China
- Inner Mongolia Key Laboratory of Dairy Biotechnology and Engineering, Inner Mongolia Agricultural University, Hohhot, China
| | - Muhammad Imran
- Microbiology Department, Faculty of Biological Sciences, Quaid-I-Azam University Islamabad 45320, Pakistan
| | - Heping Zhang
- Key Laboratory of Dairy Biotechnology and Engineering, Ministry of Education, Inner Mongolia Agricultural University, Hohhot, P. R. China
- Key Laboratory of Dairy Products Processing, Ministry of Agriculture and Rural Affairs, Inner Mongolia Agricultural University, Hohhot, P. R. China
- Collaborative Innovative Center of Ministry of Education for Lactic Acid Bacteria and Fermented Dairy Products, Inner Mongolia Agricultural University, Hohhot, P. R. China
- Inner Mongolia Key Laboratory of Dairy Biotechnology and Engineering, Inner Mongolia Agricultural University, Hohhot, China
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Probiotic properties of lactic acid bacteria isolated from traditionally prepared dry starters of the Eastern Himalayas. World J Microbiol Biotechnol 2021; 37:7. [PMID: 33392833 DOI: 10.1007/s11274-020-02975-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Accepted: 12/01/2020] [Indexed: 12/13/2022]
Abstract
The Himalayan people prepare dry and oval to round-shaped starter cultures to ferment cereals into mild-alcoholic beverages, which contain lactic acid bacteria (LAB) as one of the essential microbiota. There is no report on probiotic characters of LAB isolated from dry starters. Hence, we screened the probiotic and some functional properties of 37 LAB strains isolated from dry starters of the Eastern Himalayas viz. marcha, phab, paa, pee and phut. About 38% of the LAB strains showed high survival rate (> 50%) at pH 3 and 0.3% bile salts. Enterococcus durans BPB21 and SMB7 showed the highest hydrophobicity percentage of 98%. E. durans DMB4 and SMB7 showed maximum cholesterol assimilation activity. About 65% of the LAB strains showed the ability to produce β galactosidase. Majority of the strains showed phytase activity, whereas none of the strain showed amylase activity. About 86% of LAB strains showed an optimum tolerance of 10% ethanol concentration. Genetic screening of some probiotic and functional marker genes have also been analysed. The occurrence of clp L gene, agu A gene (survival of gastrointestinal tract conditions), apf, mub1 and map A gene (adhesion genes) was higher compared to other genes. The occurrence of bsh gene (bile salt tolerance) was detected in Pediococcus pentosaceus SMB13-1 and Enterococcus faecium BPB11. Gene ped B for pediocin with amplicon size of 375 bp was detected in E. durans DMB13 and Pediococcus acidilactici AKB3. Detection of nutritional marker gene rib A and fol P in some strains showed the potential ability to synthesize riboflavin and folic acid. LAB with probiotic and functional properties may be explored for food industry in future.
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He J, Xu S, Zhang B, Xiao C, Chen Z, Si F, Fu J, Lin X, Zheng G, Yu G, Chen J. Gut microbiota and metabolite alterations associated with reduced bone mineral density or bone metabolic indexes in postmenopausal osteoporosis. Aging (Albany NY) 2020; 12:8583-8604. [PMID: 32392181 PMCID: PMC7244073 DOI: 10.18632/aging.103168] [Citation(s) in RCA: 123] [Impact Index Per Article: 30.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2020] [Accepted: 03/31/2020] [Indexed: 04/16/2023]
Abstract
Reduced bone mineral density (BMD) is associated with an altered microbiota in senile osteoporosis. However, the relationship among gut microbiota, BMD and bone metabolic indexes remains unknown in postmenopausal osteoporosis. In this study, fecal microbiota profiles for 106 postmenopausal individuals with osteopenia (n=33) or osteoporosis (n=42) or with normal BMD (n=31) were determined. An integrated 16S rRNA gene sequencing and LC-MS-based metabolomics approach was applied to explore the association of estrogen-reduced osteoporosis with the gut microbiota and fecal metabolic phenotype. Adjustments were made using several statistical models for potential confounding variables identified from the literature. The results demonstrated decreased bacterial richness and diversity in postmenopausal osteoporosis. Additionally, showed significant differences in abundance levels among phyla and genera in the gut microbial community were found. Moreover, postmenopausal osteopenia-enriched N-acetylmannosamine correlated negatively with BMD, and distinguishing metabolites were closely associated with gut bacterial variation. Both serum procollagen type I N propeptide (P1NP) and C-terminal telopeptide of type I collagen (CTX-1) correlated positively with osteopenia-enriched Allisonella, Klebsiella and Megasphaera. However, we did not find a significant correlation between bacterial diversity and estrogen. These observations will lead to a better understanding of the relationship between bone homeostasis and the microbiota in postmenopausal osteoporosis.
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Affiliation(s)
- Jianquan He
- College of Rehabilitation Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou 350122, China
- Department of Rehabilitation, Zhongshan Hospital Xiamen University, Xiamen 361004, China
| | - Shuangbin Xu
- Department of Bioinformatics, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Bangzhou Zhang
- Institute for Microbial Ecology, School of Medicine, Xiamen University, Xiamen 361102, China
| | - Chuanxing Xiao
- Institute for Microbial Ecology, School of Medicine, Xiamen University, Xiamen 361102, China
| | - Zhangran Chen
- Institute for Microbial Ecology, School of Medicine, Xiamen University, Xiamen 361102, China
| | - Fuyou Si
- Institute for Microbial Ecology, School of Medicine, Xiamen University, Xiamen 361102, China
| | - Jifan Fu
- Department of Rehabilitation, Xinyu People's Hospital, Xinyu 338000, China
| | - Xiaomei Lin
- Department of Rehabilitation, Zhongshan Hospital Xiamen University, Xiamen 361004, China
| | - Guohua Zheng
- College of Nursing and Health Management, Shanghai University of Medicine and Health Sciences, Shanghai 201318, China
| | - Guangchuang Yu
- Department of Bioinformatics, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Jian Chen
- Department of Rehabilitation, Zhongshan Hospital Xiamen University, Xiamen 361004, China
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Zhang K, Li Q, Wu W, Yang J, Zou W. Wheat Qu and Its Production Technology, Microbiota, Flavor, and Metabolites. J Food Sci 2019; 84:2373-2386. [DOI: 10.1111/1750-3841.14768] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2019] [Revised: 06/26/2019] [Accepted: 07/12/2019] [Indexed: 01/06/2023]
Affiliation(s)
- Kaizheng Zhang
- Sichuan Univ. of Science & Engineering No. 180, Xueyuan St., Huixing Rd. Zigong 643000 Sichuan China
| | - Qiong Li
- Sichuan Univ. of Science & Engineering No. 180, Xueyuan St., Huixing Rd. Zigong 643000 Sichuan China
| | - Wenchi Wu
- Sichuan Univ. of Science & Engineering No. 180, Xueyuan St., Huixing Rd. Zigong 643000 Sichuan China
| | - Jiangang Yang
- Sichuan Univ. of Science & Engineering No. 180, Xueyuan St., Huixing Rd. Zigong 643000 Sichuan China
| | - Wei Zou
- Sichuan Univ. of Science & Engineering No. 180, Xueyuan St., Huixing Rd. Zigong 643000 Sichuan China
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Shukla S, Khan I, Bajpai VK, Lee H, Kim T, Upadhyay A, Huh YS, Han YK, Tripathi KM. Sustainable Graphene Aerogel as an Ecofriendly Cell Growth Promoter and Highly Efficient Adsorbent for Histamine from Red Wine. ACS APPLIED MATERIALS & INTERFACES 2019; 11:18165-18177. [PMID: 31025849 DOI: 10.1021/acsami.9b02857] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The utilization of a sustainable and lightweight graphene aerogel (GA), synthesized from crude biomass, as a cell growth promoter and an adsorbent for the efficient removal of histamine (HIS), a food toxicant, from the real food matrix has been explored. Due to the self-supported three-dimensional nanoporous honeycomb-like structure of the graphene framework and the high surface area, the synthesized GA achieved an 80.69 ± 0.89% removal of HIS from red wine (spiked with HIS) after just 60 min under both acidic (3.0) and neutral (7.4) pH conditions. Furthermore, simple cleaning with 50% ethanol and deionized water, without any change in weight, allowed them to be reused more than 10 times with a still significant HIS removal ability (more than 71.6 ± 2.57%). In vitro cell culture experiments demonstrated that the synthesized GA had nontoxic effects on the cell viability (up to 80.35%) even at higher concentrations (10 mg mL-1), as determined via the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide and lactate dehydrogenase assays using human lung bronchial epithelial cells. Interestingly, GA promotes the wound-healing ability on the scratched epithelial cell surfaces via enhancing the cell migrations as also validated by the western blot analysis via expression levels of epithelial β-catenin and E-cadherin proteins. The distinct structural advantage along with the nontoxicity of the green synthesized GA will not only facilitate the economic feasibility of the synthesized GA for its practical real-life applications in liquid toxin and pollutant removal from the food and environment but also broaden its applicability as a promising biomaterial of choice for biomedical applications.
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Affiliation(s)
- Shruti Shukla
- Department of Energy and Materials Engineering , Dongguk University-Seoul , 30 Pildong-ro 1-gil , Seoul 04620 , Republic of Korea
| | - Imran Khan
- Department of Biological Engineering, Biohybrid Systems Research Center (BSRC) , Inha University , 100 Inha-ro , Incheon 22212 , Republic of Korea
| | - Vivek K Bajpai
- Department of Energy and Materials Engineering , Dongguk University-Seoul , 30 Pildong-ro 1-gil , Seoul 04620 , Republic of Korea
| | - Hoomin Lee
- Department of Biological Engineering, Biohybrid Systems Research Center (BSRC) , Inha University , 100 Inha-ro , Incheon 22212 , Republic of Korea
| | - TaeYoung Kim
- Department of Bionanotechnology , Gachon University , 1342 Seongnam-daero , Sujeong-gu, Seongnam-si , Gyeonggi-do 461-701 , Republic of Korea
| | - Ashutosh Upadhyay
- Department of Food Science and Technology , National Institute of Food Technology Entrepreneurship and Management (NIFTEM) , Sonipat , Haryana 131028 , India
| | - Yun Suk Huh
- Department of Biological Engineering, Biohybrid Systems Research Center (BSRC) , Inha University , 100 Inha-ro , Incheon 22212 , Republic of Korea
| | - Young-Kyu Han
- Department of Energy and Materials Engineering , Dongguk University-Seoul , 30 Pildong-ro 1-gil , Seoul 04620 , Republic of Korea
| | - Kumud Malika Tripathi
- Department of Bionanotechnology , Gachon University , 1342 Seongnam-daero , Sujeong-gu, Seongnam-si , Gyeonggi-do 461-701 , Republic of Korea
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