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Nguyen PC, Nguyen MTT, Truong BT, Kim DR, Shin S, Kim JE, Park KB, Park JH, Tran PL, Ban SY, Kim J, Park JT. Isolation, Physicochemical Characterization, and Biological Properties of Inotodiol, the Potent Pharmaceutical Oxysterol from Chaga Mushroom. Antioxidants (Basel) 2023; 12:447. [PMID: 36830005 PMCID: PMC9952744 DOI: 10.3390/antiox12020447] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Revised: 02/06/2023] [Accepted: 02/08/2023] [Indexed: 02/12/2023] Open
Abstract
Inotodiol, an oxysterol found only in Chaga mushroom, has received attention from the pharmaceutical industry due to its strong antioxidant and anti-allergic activities. However, the production of inotodiol is still challenging, and its fundamental properties have yet to be investigated. This study aims to develop an efficient method to produce high-purity inotodiol from Chaga mushroom. Then, pure inotodiol was used to assess its physicochemical properties and biological activities. By optimizing the solvent used for extraction and purification, a new method to produce inotodiol was developed with high purity (>97%) and purification yield (33.6%). Inotodiol exhibited a melting point (192.06 °C) much higher than lanosterol and cholesterol. However, the solubility of inotodiol in organic solvents was notably lower than those of the other two sterols. The difference in the hydroxyl group at C-22 of inotodiol has shown the distinctive physicochemical properties of inotodiol compared with cholesterol and lanosterol. Based on those findings, a nonionic surfactant-based delivery system for inotodiol was developed to improve its bioavailability. The inotodiol microemulsion prepared with 1-2% Tween-80 exhibited homogenous droplets with an acceptable diameter (354 to 217 nm) and encapsulation efficiency (85.6-86.9%). The pharmacokinetic analysis of inotodiol microemulsion in oral administration of 4.5 mg/kg exhibited AUC0-24h = 341.81 (ng·h/mL), and Cmax = 88.05 (ng/mL). Notably, when the dose increased from 4.5 to 8.0 mg/kg, the bioavailability of inotodiol decreased from 41.32% to 33.28%. In a mouse model of sepsis, the serum level of interleukin-6 significantly decreased, and the rectal temperature of mice was recovered in the inotodiol emulsion group, indicating that inotodiol microemulsion is an effective oral delivery method. These results could provide valuable information for applying inotodiol in functional food, cosmetic, and pharmaceutical industries.
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Affiliation(s)
- Phu Cuong Nguyen
- Department of Food Science and Technology, Chungnam National University, Daejeon 34134, Republic of Korea
| | - My Tuyen Thi Nguyen
- Department of Food and Nutrition, Chungnam National University, Daejeon 34134, Republic of Korea
- Department of Food Technology, Can Tho University, Can Tho 94000, Vietnam
| | - Ba Tai Truong
- Graduated School of Energy Science and Technology, Chungnam National University, Daejeon 34134, Republic of Korea
| | - Dae-Ryeol Kim
- Department of Food Science and Technology, Chungnam National University, Daejeon 34134, Republic of Korea
| | - Sujin Shin
- Department of Food Science and Technology, Chungnam National University, Daejeon 34134, Republic of Korea
| | - Ju-Eun Kim
- Department of Food Science and Technology, Chungnam National University, Daejeon 34134, Republic of Korea
| | | | - Ji-Hyun Park
- CARBOEXPERT Inc., Daejeon 34134, Republic of Korea
| | - Phuong Lan Tran
- Department of Food Science and Technology, Chungnam National University, Daejeon 34134, Republic of Korea
- Department of Food Technology, An Giang University, Long Xuyen 880000, Vietnam
- Vietnam National University of Ho Chi Minh City, Ho Chi Minh 700000, Vietnam
| | - So-Young Ban
- CARBOEXPERT Inc., Daejeon 34134, Republic of Korea
| | - Jaehan Kim
- Department of Food and Nutrition, Chungnam National University, Daejeon 34134, Republic of Korea
| | - Jong-Tae Park
- Department of Food Science and Technology, Chungnam National University, Daejeon 34134, Republic of Korea
- CARBOEXPERT Inc., Daejeon 34134, Republic of Korea
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Drenkhan R, Kaldmäe H, Silm M, Adamson K, Bleive U, Aluvee A, Erik M, Raal A. Comparative Analyses of Bioactive Compounds in Inonotus obliquus Conks Growing on Alnus and Betula. Biomolecules 2022; 12:biom12091178. [PMID: 36139017 PMCID: PMC9496626 DOI: 10.3390/biom12091178] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Revised: 08/17/2022] [Accepted: 08/22/2022] [Indexed: 11/21/2022] Open
Abstract
Inonotus obliquus grows in the Northern Hemisphere on some living broadleaved tree species as a pathogen, causing stem rot. In Estonia, the fungus is well known in the Betula species but can also be found on Alnus. Sterile conks of I. obliquus contain different bioactive compounds, but the quantitative and comparative research of these compounds in conks on different host species is limited. In the current work, I. obliquus was isolated and, evidently, determined from Alnus incana (L.) Moench., Alnus glutinosa (L.) Gaertn., and Betula pendula Roth, and the content of bioactive compounds in conks on these hosts were analysed. All the analysed conks sampled from A. incana and B. pendula contained betulin that varied from 111 to 159 µg/g. A significantly (p < 0.05) higher betulinic acid content was found in conks sampled from A. incana when compared with B. pendula: 474−635 and 20−132 µg/g, respectively. However, the conks from Betula were richer in total polyphenols, flavonols, and glucans. The content of inotodiol was quite similar in the conks from A. incana (7455−8961 µg/g) and B. pendula (7881−9057 µg/g). Also, no significant differences in the lanosterol content were found between the samples from these two tree species. To the best of our knowledge, this study is the first investigation of the chemical composition of I. obliquus parasitizing on Alnus. The results demonstrate that the bioactive compounds are promising in conks of I. obliquus growing not only on Betula but also on the Alnus species. It supports the opportunity to cultivate I. obliquus, also on the Alnus species, thus increasing the economic value of growing this tree species in forestry.
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Affiliation(s)
- Rein Drenkhan
- Chair of Silviculture and Forest Ecology, Institute of Forestry and Engineering, Estonian University of Life Sciences, 51006 Tartu, Estonia
- Correspondence:
| | - Hedi Kaldmäe
- Polli Horticultural Research Centre, Chair of Horticulture, Institute of Agricultural and Environmental Sciences, Estonian University of Life Sciences, 69108 Polli, Estonia
| | - Maidu Silm
- Chair of Hydrobiology and Fisheries, Institute of Agricultural and Environmental Sciences, Estonian University of Life Sciences, 51006 Tartu, Estonia
| | - Kalev Adamson
- Chair of Silviculture and Forest Ecology, Institute of Forestry and Engineering, Estonian University of Life Sciences, 51006 Tartu, Estonia
| | - Uko Bleive
- Polli Horticultural Research Centre, Chair of Horticulture, Institute of Agricultural and Environmental Sciences, Estonian University of Life Sciences, 69108 Polli, Estonia
| | - Alar Aluvee
- Polli Horticultural Research Centre, Chair of Horticulture, Institute of Agricultural and Environmental Sciences, Estonian University of Life Sciences, 69108 Polli, Estonia
| | | | - Ain Raal
- Faculty of Medicine, Institute of Pharmacy, University of Tartu, 50411 Tartu, Estonia
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Tian L, Wang Y, Qing J, Zhou W, Sun L, Li R, Li Y. A review of the pharmacological activities and protective effects of Inonotus obliquus triterpenoids in kidney diseases. OPEN CHEM 2022. [DOI: 10.1515/chem-2022-0168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Abstract
Kidney diseases are common health problems worldwide. Various etiologies ultimately lead to the development of chronic kidney disease and end-stage renal disease. Natural compounds from herbs or medicinal plants are widely used for therapy and prevention of various ailments, among which is Inonotus obliquus. I. obliquus is rich in triterpenoids and the main active ingredients include betulinic acid, trametenolic acid, inotodiol, and ergosterol. New evidence suggests that I. obliquus triterpenes may be an effective drug for the treatment and protection of various kidney diseases. The aim of this review is to highlight the pharmacological activities and potential role of I. obliquus triterpenes in the kidney disease treatment and protection.
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Affiliation(s)
- Lingling Tian
- The Third Clinical College, Shanxi University of Chinese Medicine , Taiyuan , Shanxi, 030001 , China
| | - Yi Wang
- The Third Clinical College, Shanxi University of Chinese Medicine , Taiyuan , Shanxi, 030001 , China
| | - Jianbo Qing
- Department of Nephrology, Shanxi Provincial People’s Hospital (Fifth Hospital) of Shanxi Medical University , Taiyuan , 030001 , China
- The Fifth Clinical Medical College of Shanxi Medical University , Taiyuan , Shanxi, 030001 , China
| | - Wenjing Zhou
- School of Medical Sciences, Shanxi University of Chinese Medicine , jinzhong , 030619 , China
| | - Lin Sun
- College of Taditional Chinese Medicine and Food Engineering, Shanxi University of Chinese Medicine , jinzhong , 030619 , China
| | - Rongshan Li
- Department of Nephrology, Shanxi Provincial People’s Hospital (Fifth Hospital) of Shanxi Medical University ; Taiyuan , 030001 , China
- Shanxi Provincial Key Laboratory of Kidney Disease, Shanxi Provincial People’s Hospital (Fifth Hospital) of Shanxi Medical University , Taiyuan, 030012 , Shanxi , China
| | - Yafeng Li
- Department of Nephrology, Shanxi Provincial People’s Hospital (Fifth Hospital) of Shanxi Medical University , Taiyuan , 030001 , China
- Shanxi Provincial Key Laboratory of Kidney Disease, Shanxi Provincial People’s Hospital (Fifth Hospital) of Shanxi Medical University , Taiyuan , 030012, Shanxi , China
- Core Laboratory, Shanxi Provincial People’s Hospital (Fifth Hospital) of Shanxi Medical University , Taiyuan , 030001 , China
- Academy of Microbial Ecology, Shanxi Medical University , Taiyuan , 030001 , China
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