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Zheng Z, Xu Y, Qu H, Zhou H, Yang H. Enhancement of anti-diabetic activity of pomelo peel by the fermentation of Aspergillus oryzae CGMCC23295: In vitro and in silico docking studies. Food Chem 2024; 432:137195. [PMID: 37625298 DOI: 10.1016/j.foodchem.2023.137195] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Revised: 07/30/2023] [Accepted: 08/16/2023] [Indexed: 08/27/2023]
Abstract
In this work, pomelo peel was fermented by Aspergillus oryzae CGMCC23295 to enhance its anti-diabetic properties. Results showed the total phenolic and flavonoids contents, ferric reducing antioxidant power (FRAP), scavenging capacities against 2,2'-azinobis (3-ethylbenzothiazoline-6-sulfonic acid) (ABTS), 1,1-diphenyl-2-picrylhydrazyl (DPPH) and hydroxyl radicals, as well as inhibitory abilities against α-amylase and α-glucosidase of pomelo peel were increased and fermentation for 8 days was the best. Additionally, the fermented sample could also enhance the glucose consumption and glycogen of HepG2 cell. Based on UPLC-MS/MS analysis, binding energy calculation, concentration determination and IC50 measurement, purpurin, apigenin, genistein, and paxilline could be concluded to be the main compounds to enhance the inhibition activities of fermented sample against α-amylase and α-glucosidase. Furthermore, computational studies were performed to reveal the the binding site and molecular interactions between paxilline and α-amylase, as well as purpurin and α-glucosidase. These findings provide a base for the utilization and valorization of pomelo peels as functional food additives by fermentation.
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Affiliation(s)
- Zhihan Zheng
- Zhejiang Provincial Key Laboratory for Water Environment and Marine Biological Resources Protection, College of Life & Environmental Science, Wenzhou University, Wenzhou 325035, China
| | - Yicheng Xu
- Zhejiang Provincial Key Laboratory for Water Environment and Marine Biological Resources Protection, College of Life & Environmental Science, Wenzhou University, Wenzhou 325035, China
| | - Hang Qu
- Zhejiang Provincial Key Laboratory for Water Environment and Marine Biological Resources Protection, College of Life & Environmental Science, Wenzhou University, Wenzhou 325035, China
| | - Huabin Zhou
- Zhejiang Provincial Key Laboratory for Water Environment and Marine Biological Resources Protection, College of Life & Environmental Science, Wenzhou University, Wenzhou 325035, China.
| | - Hailong Yang
- Zhejiang Provincial Key Laboratory for Water Environment and Marine Biological Resources Protection, College of Life & Environmental Science, Wenzhou University, Wenzhou 325035, China.
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Song WS, Shin KC, Oh DK. Production of ginsenoside compound K from American ginseng extract by fed-batch culture of Aspergillus tubingensis. AMB Express 2023; 13:64. [PMID: 37356062 DOI: 10.1186/s13568-023-01556-5] [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: 04/26/2023] [Accepted: 05/03/2023] [Indexed: 06/27/2023] Open
Abstract
Compound K (C-K), one of the most bioactive ginsenoside, is produced by hydrolyzing the glycoside moieties of protopanaxadiol (PPD)-type glycosylated ginsenosides in the ginseng extract. To enhance the biotransformation of PPD-type ginsenosides in American ginseng extract (AGE) into C-K, the optimization of the feed type, concentration, and period for the carbon source sucrose and the reactant AGE was performed in fed-batch fermentation of Aspergillus tubingensis using a fermenter. The concentration (3.94 g/L) and productivity (27.4 mg/L/h) of C-K after feed optimization in fed-batch fermentation increased 3.1-fold compared to those (1.29 g/L and 8.96 mg/L/h) in batch fermentation, and a molar conversion of 100% was achieved. To the best of our knowledge, this is the first trial of fed-batch fermentation to convert ginseng extract into deglycosylated ginsenoside and the highest reported C-K concentration and productivity using ginseng extract via fermentation. After ethanol and resin treatments, C-K solids with purities of 59% and 96% were obtained from the fermentation broth as food- and pharmaceutical-grade products, respectively.
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Affiliation(s)
- Woo-Seok Song
- Department of Bioscience and Biotechnology, Konkuk University, 120 Neungdong-Ro, Gwangjin-Gu, Seoul, 05029, Republic of Korea
| | - Kyung-Chul Shin
- Department of Integrative Bioscience and Biotechnology, Konkuk University, 120 Neungdong-Ro, Gwangjin-Gu, Seoul, 05029, Republic of Korea.
| | - Deok-Kun Oh
- Department of Bioscience and Biotechnology, Konkuk University, 120 Neungdong-Ro, Gwangjin-Gu, Seoul, 05029, Republic of Korea.
- Department of Integrative Bioscience and Biotechnology, Konkuk University, 120 Neungdong-Ro, Gwangjin-Gu, Seoul, 05029, Republic of Korea.
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Effects of solid-state fermentation using R. oligosporus on the phytochemical composition of wild-simulated ginseng leaf and its biological properties. FOOD BIOSCI 2023. [DOI: 10.1016/j.fbio.2023.102412] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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Song WS, Kim MJ, Shin KC, Oh DK. Increased Production of Ginsenoside Compound K by Optimizing the Feeding of American Ginseng Extract during Fermentation by Aspergillus tubingensis. J Microbiol Biotechnol 2022; 32:902-910. [PMID: 35719083 PMCID: PMC9628922 DOI: 10.4014/jmb.2203.03059] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Revised: 06/01/2022] [Accepted: 06/07/2022] [Indexed: 12/15/2022]
Abstract
The ginsenoside compound K (C-K) is widely used in traditional medicines, nutritional supplements, and cosmetics owing to its diverse pharmacological activities. Although many studies on C-K production have been conducted, fermentation is reported to produce C-K with low concentration and productivity. In the present study, addition of an inducer and optimization of the carbon and nitrogen sources in the medium were performed using response surface methodology to increase the C-K production via fermentation by Aspergillus tubingensis, a generally recognized as safe fungus. The optimized inducer and carbon and nitrogen sources were 2 g/l rice straw, 10 g/l sucrose, and 10 g/l soy protein concentrate, respectively, and they resulted in a 3.1-fold increase in the concentration and productivity of C-K (0.22 g/l and 1.52 mg/l/h, respectively) compared to those used before optimization without inducer (0.071 g/l and 0.49 mg/l/h, respectively). The feeding methods of American ginseng extract (AGE), including feeding timing, feeding concentration, and feeding frequency, were also optimized. Under the optimized conditions, A. tubingensis produced 3.96 mM (2.47 g/l) C-K at 144 h by feeding two times with 8 g/l AGE at 48 and 60 h, with a productivity of 17.1 mg/l/h. The concentration and productivity of C-K after optimization of feeding methods were 11-fold higher than those before the optimization (0.22 g/l and 1.52 mg/l/h, respectively). Thus, the optimization for the feeding methods of ginseng extract is an efficient strategy to increase C-K production. To our knowledge, this is the highest reported C-K concentration and productivity via fermentation reported so far.
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Affiliation(s)
- Woo-Seok Song
- Department of Bioscience and Biotechnology, Konkuk University, Seoul 05029, Republic of Korea
| | - Min-Ju Kim
- Department of Bioscience and Biotechnology, Konkuk University, Seoul 05029, Republic of Korea
| | - Kyung-Chul Shin
- Department of Integrative Bioscience and Biotechnology, Konkuk University, Seoul 05029, Republic of Korea,Corresponding authors K.C. Shin E-mail:
| | - Deok-Kun Oh
- Department of Bioscience and Biotechnology, Konkuk University, Seoul 05029, Republic of Korea,Department of Integrative Bioscience and Biotechnology, Konkuk University, Seoul 05029, Republic of Korea,
D.K. Oh Phone: +82-2-454-3118 Fax: +82-2-444-5518 E-mail:
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Simurabiye JB, Yen LTH, Doan ND, Hoanh TD, Nhan VD, Nshimiyimana JB, Thanh TH, Anh DTH. Optimization of Panax notoginseng root extract hydrolysis by Cordyceps militaris derived glycosidase and bioactivities of hydrolysis products. SCIENTIFIC AFRICAN 2022. [DOI: 10.1016/j.sciaf.2021.e01082] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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Han Y, Yang DU, Huo Y, Pu J, Lee SJ, Yang DC, Kang SC. In Vitro Evaluation of Anti-Lung Cancer and Anti-COVID-19 Effects using Fermented Black Color Ginseng Extract. Nat Prod Commun 2021. [DOI: 10.1177/1934578x211034387] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Ginseng is known as the “king” of herbal plants and has been used widely in Asia for centuries. Ginseng contains active saponins, including protopanaxadiols, protopanaxatriols, and other compounds. There are many methods for processing ginseng, such as steaming, fermentation, expansion, and conversion of active compounds, which can improve its biological activity. In this study, we investigated the cytotoxic and oxidative effects of fermented black color ginseng (FBCG), black ginseng (BG), and white ginseng (WG) on a human lung carcinoma cell line (A549). Moreover, we found that treatment with FBCG induced oxidative stress in the A549 cell line and increases the apoptosis percentage; these effects were linked to the stimulation of the caspase 3/mitogen-activated protein kinase (caspase 3/MAPK) pathway. We also evaluated the anti-coronavirus disease-2019 (COVID-19) effect of FBCG on a severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2)-infected Vero E6 cell line. Our results suggest that FBCG not only inhibits the replication of this strain of virus in the cell but also reduces the number of viral RNA (vRNA) copies in the extracellular environment. Taken together, these data show that FBCG has both potential anti-lung cancer and anti-COVID-19 effects.
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Affiliation(s)
- Yaxi Han
- Kyung Hee University, Yongin-si, Republic of Korea
| | - Dong-Uk Yang
- Kyung Hee University, Yongin-si, Republic of Korea
| | - Yue Huo
- Kyung Hee University, Yongin-si, Republic of Korea
| | - Jianyu Pu
- Kyung Hee University, Yongin-si, Republic of Korea
| | - Seung-Jin Lee
- Nature Bio Pharma Co., Ltd., Seoul, Republic of Korea
| | | | - Se Chan Kang
- Kyung Hee University, Yongin-si, Republic of Korea
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Yao L, Wang J, He J, Huang L, Gao W. Endophytes, biotransforming microorganisms, and engineering microbial factories for triterpenoid saponins production. Crit Rev Biotechnol 2021; 41:249-272. [PMID: 33472430 DOI: 10.1080/07388551.2020.1869691] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Triterpenoid saponins are structurally diverse secondary metabolites. They are the main active ingredient of many medicinal plants and have a wide range of pharmacological effects. Traditional production of triterpenoid saponins, directly extracted from cultivated plants, cannot meet the rapidly growing demand of pharmaceutical industry. Microorganisms with triterpenoid saponins production ability (especially Agrobacterium genus) and biotransformation ability, such as fungal species in Armillaria and Aspergillus genera and bacterial species in Bacillus and Intestinal microflora, represent a valuable source of active metabolites. With the development of synthetic biology, engineering microorganisms acquired more potential in terms of triterpenoid saponins production. This review focusses on potential mechanisms and the high yield strategies of microorganisms with inherent production or biotransformation ability of triterpenoid saponins. Advances in the engineering of microorganisms, such as Saccharomyces cerevisiae, Yarrowia lipolytica, and Escherichia coli, for the biosynthesis triterpenoid saponins de novo have also been reported. Strategies to increase the yield of triterpenoid saponins in engineering microorganisms are summarized following four aspects, that is, introduction of high efficient gene, optimization of enzyme activity, enhancement of metabolic flux to target compounds, and optimization of fermentation conditions. Furthermore, the challenges and future directions for improving the yield of triterpenoid saponins biosynthesis in engineering microorganisms are discussed.
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Affiliation(s)
- Lu Yao
- Tianjin Key Laboratory for Modern Drug Delivery and High Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, China.,Key Laboratory of Systems Bioengineering, Ministry of Education, Tianjin University, Tianjin, China
| | - Juan Wang
- Tianjin Key Laboratory for Modern Drug Delivery and High Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, China.,Key Laboratory of Systems Bioengineering, Ministry of Education, Tianjin University, Tianjin, China
| | - Junping He
- Tianjin Key Laboratory for Modern Drug Delivery and High Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, China.,Key Laboratory of Systems Bioengineering, Ministry of Education, Tianjin University, Tianjin, China
| | - Luqi Huang
- National Resource Center for Chinese Meteria Medica, China Academy of Chinese Medical Sciences, Beijing China
| | - Wenyuan Gao
- Tianjin Key Laboratory for Modern Drug Delivery and High Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, China.,Key Laboratory of Systems Bioengineering, Ministry of Education, Tianjin University, Tianjin, China
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Jeong EB, Kim SA, Shin KC, Oh DK. Biotransformation of Protopanaxadiol-Type Ginsenosides in Korean Ginseng Extract into Food-Available Compound K by an Extracellular Enzyme from Aspergillus niger. J Microbiol Biotechnol 2020; 30:1560-1567. [PMID: 32807754 PMCID: PMC9728230 DOI: 10.4014/jmb.2007.07003] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Revised: 07/17/2020] [Accepted: 07/28/2020] [Indexed: 12/15/2022]
Abstract
Compound K (C-K) is one of the most pharmaceutically effective ginsenosides, but it is absent in natural ginseng. However, C-K can be obtained through the hydrolysis of protopanaxadiol-type ginsenosides (PPDGs) in natural ginseng. The aim of this study was to obtain the high concentration of food-available C-K using PPDGs in Korean ginseng extract by an extracellular enzyme from Aspergillus niger KACC 46495. A. niger was cultivated in the culture medium containing the inducer carboxymethyl cellulose (CMC) for 6 days. The extracellular enzyme extracted from A. niger was prepared from the culture broth by filtration, ammonium sulfate, and dialysis. The extracellular enzyme was used for C-K production using PPDGs. The glycoside-hydrolyzing pathways for converting PPDGs into C-K by the extracellular enzyme were Rb1 → Rd → F2 → C-K, Rb2 → Rd or compound O → F2 or compound Y → C-K, and Rc → Rd or compound Mc1 → F2 or compound Mc → C-K. The extracellular enzyme from A. niger at 8.0 mg/ml, which was obtained by the induction of CMC during the cultivation, converted 6.0 mg/ml (5.6 mM) PPDGs in Korean ginseng extract into 2.8 mg/ml (4.5 mM) food-available C-K in 9 h, with a productivity of 313 mg/l/h and a molar conversion of 80%. To the best of our knowledge, the productivity and concentration of C-K of the extracellular enzyme are the highest among those by crude enzymes from wild-type microorganisms.
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Affiliation(s)
- Eun-Bi Jeong
- Department of Bioscience and Biotechnology, Konkuk University, Seoul 05029, Republic of Korea
| | - Se-A Kim
- Department of Bioscience and Biotechnology, Konkuk University, Seoul 05029, Republic of Korea
| | - Kyung-Chul Shin
- Department of Bioscience and Biotechnology, Konkuk University, Seoul 05029, Republic of Korea
| | - Deok-Kun Oh
- Department of Bioscience and Biotechnology, Konkuk University, Seoul 05029, Republic of Korea,Corresponding author Phone: +82-2-454-3118 Fax: +82-2-444-5518 E-mail:
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Ałtyn I, Twarużek M. Mycotoxin Contamination Concerns of Herbs and Medicinal Plants. Toxins (Basel) 2020; 12:E182. [PMID: 32183391 PMCID: PMC7150885 DOI: 10.3390/toxins12030182] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2020] [Revised: 02/13/2020] [Accepted: 03/12/2020] [Indexed: 12/24/2022] Open
Abstract
Plants and medicinal herbs that are available on the market do not always meet quality and safety standards. One particular concern is the risk of contamination with mycotoxins. Aflatoxins and ochratoxin A are the most frequently described mycotoxins in herbal products and have repeatedly been reported to occur at concentrations which exceed regulatory levels set by the European Union (EU). Possible solutions include enforcing existing limits, and for the new materials, establishing tighter limits and mandate the growth of medicinal plants in EU member countries under more strict conditions.
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Affiliation(s)
| | - Magdalena Twarużek
- Department of Physiology and Toxicology, Faculty of Biological Sciences, Kazimierz Wielki University, Chodkiewicza 30, 85-064 Bydgoszcz, Poland;
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Improved in vitro antioxidant properties and hepatoprotective effects of a fermented Inula britannica extract on ethanol-damaged HepG2 cells. Mol Biol Rep 2019; 46:6053-6063. [DOI: 10.1007/s11033-019-05040-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2019] [Accepted: 08/20/2019] [Indexed: 01/14/2023]
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