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Yul Lee H, Haque MA, Yong Cho D, Bin Jeong J, Ho Lee J, Young Lee G, Yeun Jang M, Hwan Lee J, Man Cho K. Comparison of microbial diversity and metabolites on household and commercial doenjang. Food Chem X 2024; 21:101101. [PMID: 38268844 PMCID: PMC10805635 DOI: 10.1016/j.fochx.2023.101101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2023] [Revised: 12/10/2023] [Accepted: 12/23/2023] [Indexed: 01/26/2024] Open
Abstract
In this study, the microbial diversity, free amino acid (FAA), and biological activities of household doenjang (HDJ) from four different regions and commercial doenjang (CDJ) four manufacturers were analyzed. And volatile flavor compound (VFC) and isoflavone profiles were analyzed using gas chromatograph-mass spectrometer (GC-MS) and high performance liquid chromatography (HPLC), respectively. The major bacterial genus in 1HDJ and 2HDJ was Bacillus (97.5%), while in 3HDJ and 4HDJ, it was Enterobacter (47.5%) and Pseudomonas (80%), respectively. Tetragenococcus was the main bacterial genus of CDJ. The Zygosaccharomyces genus among yeast was comparatively high in all samples. In all samples, glutamic acid predominated among the FAAs, and the 3-methyl butanal, benzeneacetaldehyde, and diallyl disulphide were major VFCs. CDJ contained higher levels of isoflavone-glycoside and total phenolics. Except for 3HDJ and 4CDJ, the isoflavone-aglycone and total flavonoid contents were higher in HDJ. The correlation between bacterial genus and metabolited of doenjang showed that Tetragenococcus was closely related to glutamic acid, Bacillus was related to aglycones and ammonia, and Pseudomonas was highly related to isovaleric acid. While, correlation between yeast genus and metabolited of doenjang confirmed that Candida, Hanseniaspora, and Saccharomyces were related with furfural, benzeneacetaldehyde, and 3-methyl butanal, respectively. The results of this study can be utilized as basic data for the industrialization and development of doenjang.
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Affiliation(s)
- Hee Yul Lee
- Department of GreenBio Science and Agri-Food Bio Convergence Institute, Gyeongsang National University, Jinju 52727, Republic of Korea
| | - Md. Azizul Haque
- Department of Biochemistry and Molecular Biology, Hajee Mohammad Danesh Science and Technology University, Dinajpur 5200, Bangladesh
| | - Du Yong Cho
- Department of GreenBio Science and Agri-Food Bio Convergence Institute, Gyeongsang National University, Jinju 52727, Republic of Korea
| | - Jong Bin Jeong
- Department of GreenBio Science and Agri-Food Bio Convergence Institute, Gyeongsang National University, Jinju 52727, Republic of Korea
| | - Ji Ho Lee
- Department of GreenBio Science and Agri-Food Bio Convergence Institute, Gyeongsang National University, Jinju 52727, Republic of Korea
| | - Ga Young Lee
- Department of GreenBio Science and Agri-Food Bio Convergence Institute, Gyeongsang National University, Jinju 52727, Republic of Korea
| | - Mu Yeun Jang
- Department of GreenBio Science and Agri-Food Bio Convergence Institute, Gyeongsang National University, Jinju 52727, Republic of Korea
| | - Jin Hwan Lee
- Department of Life Resource Industry, Dong-A University, 37, Nakdong-daero 550 beon-gil, Saha-gu, Busan 49315, Republic of Korea
| | - Kye Man Cho
- Department of GreenBio Science and Agri-Food Bio Convergence Institute, Gyeongsang National University, Jinju 52727, Republic of Korea
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Nopparat J, Sujipuli K, Ratanasut K, Weerawatanakorn M, Prasarnpun S, Thongbai B, Laothaworn W, Inthima P. Exploring the excellence of commercial Brahmi products from Thai online markets: Unraveling phytochemical contents, antioxidant properties and DNA damage protection. Heliyon 2024; 10:e24509. [PMID: 38304802 PMCID: PMC10831600 DOI: 10.1016/j.heliyon.2024.e24509] [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: 10/17/2023] [Revised: 01/03/2024] [Accepted: 01/10/2024] [Indexed: 02/03/2024] Open
Abstract
Brahmi (Bacopa monnieri (L.) Wettst.) is extensively used as a nutritional supplement in various commercial products as the plant contains abundant phytochemicals and has antioxidant properties. This study assessed the phytochemical contents, antioxidant properties, and DNA damage protection among seven Brahmi products sold through Thai online markets. Results showed that the P6 sample exhibited 3.5-7.5 fold higher bacoside contents than values observed in the other six product samples. The P6 sample also demonstrated the highest TTC, TFC, and TPC compared to the other brands. For antioxidant activity, the samples (P1-P7) displayed high capacity to scavenge DPPH free radicals with slightly significant differences ranging from 78.37 ± 0.25 to 87.21 ± 0.05 at p-value ≤0.01. The P6 sample showed strong protection against H2O2-induced oxidation of DNA strand breakage, indicating highly potent phytochemical compounds with effective free radical scavenging activity, and the ability to prevent DNA damage. The P6 sample showed promise as a valuable ingredient for the development of functional food products. However, further in vivo animal and clinical studies are required to explore the neuroprotective enhancement effects of Brahmi extracts.
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Affiliation(s)
- Junya Nopparat
- Office of the Dean, Faculty of Science and Health Technology, Navamindradhiraj University, 3, White Road, Vajira Hospital, Dusit, Bangkok, 10300, Thailand
| | - Kawee Sujipuli
- Center of Agricultural Biotechnology, Naresuan University, 99 Moo 9, Tha Pho, Phitsanulok, 65000, Thailand
- Department of Agricultural Science, Faculty of Agriculture Natural Resources and Environment, Naresuan University, 99 Moo 9, Tha Pho, Phitsanulok, 65000, Thailand
| | - Kumrop Ratanasut
- Center of Agricultural Biotechnology, Naresuan University, 99 Moo 9, Tha Pho, Phitsanulok, 65000, Thailand
- Department of Agricultural Science, Faculty of Agriculture Natural Resources and Environment, Naresuan University, 99 Moo 9, Tha Pho, Phitsanulok, 65000, Thailand
| | - Monthana Weerawatanakorn
- Department of Agro-Industry, Faculty of Agriculture, Natural Resources and Environment, Naresuan University, 99 Moo 9, Tha Pho, Phitsanulok, 65000, Thailand
| | - Surisak Prasarnpun
- School of Medical Sciences, University of Phayao, Phayao, 56000, Thailand
| | - Bussagon Thongbai
- Department of Food Technology and Nutrition, Faculty of Technology, Mahasarakham University, Mahasarakham, 44150, Thailand
| | - Walailak Laothaworn
- Department of Biology, Faculty of Science, Naresuan University, 99 Moo 9, Tha Pho, Phitsanulok, 65000, Thailand
| | - Phithak Inthima
- Center of Agricultural Biotechnology, Naresuan University, 99 Moo 9, Tha Pho, Phitsanulok, 65000, Thailand
- Department of Biology, Faculty of Science, Naresuan University, 99 Moo 9, Tha Pho, Phitsanulok, 65000, Thailand
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