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Chorum M, Suphan S, Khetkorn W, Sujarit K, Naloka K, Saithong P, Kitpreechavanich V, Lomthong T. Conversion of golden oyster mushroom, Pleurotus citrinopileatus to sugar syrup using enzymatic hydrolysis as a substrate for novel bacterial cellulose ( Nata) fermentation. 3 Biotech 2022; 12:207. [PMID: 35935541 PMCID: PMC9349335 DOI: 10.1007/s13205-022-03274-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Accepted: 07/20/2022] [Indexed: 11/01/2022] Open
Abstract
Enzymatic hydrolysis of the golden oyster mushroom (Pleurotus citrinopileatus) generated a new bacterial cellulose (BC). The sugar syrup obtained from the hydrolysis of mushroom powder by commercial enzymes gave maximum total soluble solids (TSS) content at 8.83 ± 0.29°Brix, while 8.82 ± 0.06 mg GAE/g substrate of total phenolic content (TPC) was obtained when using initial substrate and enzyme concentrations at 125 g/L and 5.0%, respectively. Glutamic acid, aspartic acid, alanine and valine were determined as the main amino acids found in P. citrinopileatus hydrolysis at 524.74 ± 0.03, 247.09 ± 0.04, 176.82 ± 0.07 and 174.57 ± 0.01 mg/100 g sample, respectively. Thin-layer chromatography revealed that the obtained sugar syrup was glucose. The hydrolyzed mushroom fermented with Komagataeibacter xylinus AGR 60 at 30 ± 2 °C for 9 days produced optimal conditions at 4.0°Brix of the initial mushroom syrup and 12.0% (v/v) of the starter culture. Maximum BC thickness was 0.88 ± 0.03 cm with 7.90 ± 0.07 g dry weight, equivalent to 39.50 ± 0.35 g/L and 4.39 ± 0.04 g/L/day for BC production (P) and BC production rate (R p), respectively. The obtained BC was characterized by scanning electron microscopy, Fourier-transform infrared spectroscopy, small-angle X-ray scattering and wide-angle X-ray diffraction. These showed the structure and functional properties as a natural source of fiber from the fermentation of a novel substrate.
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Affiliation(s)
- Manida Chorum
- Division of Biology, Faculty of Science and Technology, Rajamangala University of Technology, Thanyaburi, Pathumthani, 12110 Thailand
| | - Sutthawan Suphan
- Division of Biology, Faculty of Science and Technology, Rajamangala University of Technology, Thanyaburi, Pathumthani, 12110 Thailand
| | - Wanthanee Khetkorn
- Division of Biology, Faculty of Science and Technology, Rajamangala University of Technology, Thanyaburi, Pathumthani, 12110 Thailand
| | - Kanaporn Sujarit
- Division of Biology, Faculty of Science and Technology, Rajamangala University of Technology, Thanyaburi, Pathumthani, 12110 Thailand
| | - Kallayanee Naloka
- Microbial Technology for Marine Pollution Treatment Research Unit, Department of Microbiology, Faculty of Science, Chulalongkorn University, Bangkok, 10330 Thailand
| | - Pramuan Saithong
- Department of Applied Microbiology, Institute of Food Research and Product Development, Kasetsart University, Bangkok, 10900 Thailand
| | | | - Thanasak Lomthong
- Division of Biology, Faculty of Science and Technology, Rajamangala University of Technology, Thanyaburi, Pathumthani, 12110 Thailand
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