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Doan DT, Luu DP, Nguyen TD, Hoang Thi B, Pham Thi HM, Do HN, Luu VH, Pham TD, Than VT, Pham Thi HH, Pham MQ, Tran QT. Isolation of Penicillium citrinum from Roots of Clerodendron cyrtophyllum and Application in Biosynthesis of Aglycone Isoflavones from Soybean Waste Fermentation. Foods 2019; 8:foods8110554. [PMID: 31698736 PMCID: PMC6915340 DOI: 10.3390/foods8110554] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2019] [Revised: 10/24/2019] [Accepted: 10/28/2019] [Indexed: 11/16/2022] Open
Abstract
Soybeans offer an abundant source of isoflavones, which confer useful bioactivities when existing in aglycone forms. The conversion of isoflavones into aglycones via fermentation of soybean products is often realized by β-glucosidase, an enzyme produced by fungi. In this study, a filamentous fungus, Clerodendron cyrtophyllum, was isolated from root of Clerodendron cyrtophyllum Turcz, which was able to produce the highest activity of β-glucosidase up to 33.72 U/mL at 144 h during fermentation on Potato Dextrose Broth (PDB). The obtained fungus was grown on isoflavones-rich soybean extract to produce genistein and daidzein, achieving the conversion rate of 98.7%. Genistein and daidzein were isolated and purified by column chromatography using hexane/acetone (29:1/1:1), reaching purities of over 90% of total isoflavones, as identified and determined by TLC, LC-MS/MS, and 1H and 13C NMR spectroscopy. These results imply that the isolated P. citrinum is a potential fungal strain for industrial-scale production of genistein and daidzein from isoflavones-containing soybean extracts. These products may serve as potential raw materials for manufacture of functional foods that are based on aglycones.
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Affiliation(s)
- Duy Tien Doan
- Institute of Chemistry, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet St., Cau Giay Dist., Hanoi 10072, Vietnam; (D.T.D.); (D.P.L.); (T.D.N.)
| | - Duc Phuong Luu
- Institute of Chemistry, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet St., Cau Giay Dist., Hanoi 10072, Vietnam; (D.T.D.); (D.P.L.); (T.D.N.)
| | - Thanh Duong Nguyen
- Institute of Chemistry, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet St., Cau Giay Dist., Hanoi 10072, Vietnam; (D.T.D.); (D.P.L.); (T.D.N.)
| | - Bich Hoang Thi
- Institute of Natural Products Chemistry, Vietnam Academy of Science and Technology,18 Hoang Quoc Viet St., Cau Giay Dist., Hanoi 10072, Vietnam; (B.H.T.); (H.M.P.T.); (H.N.D.); (T.D.P.); (M.Q.P.)
| | - Hong Minh Pham Thi
- Institute of Natural Products Chemistry, Vietnam Academy of Science and Technology,18 Hoang Quoc Viet St., Cau Giay Dist., Hanoi 10072, Vietnam; (B.H.T.); (H.M.P.T.); (H.N.D.); (T.D.P.); (M.Q.P.)
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Hanoi 10072, Vietnam
| | - Huu Nghi Do
- Institute of Natural Products Chemistry, Vietnam Academy of Science and Technology,18 Hoang Quoc Viet St., Cau Giay Dist., Hanoi 10072, Vietnam; (B.H.T.); (H.M.P.T.); (H.N.D.); (T.D.P.); (M.Q.P.)
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Hanoi 10072, Vietnam
| | - Van Huyen Luu
- Hanoi University of Natural Resources and Environment, Hanoi 10072, Vietnam;
| | - The Dan Pham
- Institute of Natural Products Chemistry, Vietnam Academy of Science and Technology,18 Hoang Quoc Viet St., Cau Giay Dist., Hanoi 10072, Vietnam; (B.H.T.); (H.M.P.T.); (H.N.D.); (T.D.P.); (M.Q.P.)
- Vietnam Academy of Science and Technology, University of Science and Technology of Hanoi, Hanoi 10072, Vietnam
| | - Van Thai Than
- NTT Institute of High Technology, Nguyen Tat Thanh University, Ho Chi Minh City 700000, Vietnam;
| | - Hai Ha Pham Thi
- Faculty of Biotechnology, Nguyen Tat Thanh University, Ho Chi Minh City 700000, Vietnam
- Correspondence: (H.H.P.T.); (Q.T.T.)
| | - Minh Quan Pham
- Institute of Natural Products Chemistry, Vietnam Academy of Science and Technology,18 Hoang Quoc Viet St., Cau Giay Dist., Hanoi 10072, Vietnam; (B.H.T.); (H.M.P.T.); (H.N.D.); (T.D.P.); (M.Q.P.)
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Hanoi 10072, Vietnam
| | - Quoc Toan Tran
- Institute of Natural Products Chemistry, Vietnam Academy of Science and Technology,18 Hoang Quoc Viet St., Cau Giay Dist., Hanoi 10072, Vietnam; (B.H.T.); (H.M.P.T.); (H.N.D.); (T.D.P.); (M.Q.P.)
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Hanoi 10072, Vietnam
- Correspondence: (H.H.P.T.); (Q.T.T.)
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