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Yootoum A, Jantanasakulwong K, Rachtanapun P, Moukamnerd C, Chaiyaso T, Pumas C, Tanadchangsaeng N, Watanabe M, Fukui T, Insomphun C. Characterization of newly isolated thermotolerant bacterium Cupriavidus sp. CB15 from composting and its ability to produce polyhydroxyalkanoate from glycerol. Microb Cell Fact 2023; 22:68. [PMID: 37046250 PMCID: PMC10091600 DOI: 10.1186/s12934-023-02059-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Accepted: 03/09/2023] [Indexed: 04/14/2023] Open
Abstract
BACKGROUND This study aimed to isolate a novel thermotolerant bacterium that is capable of synthesizing polyhydroxyalkanoate from glycerol under high temperature conditions. RESULTS A newly thermotolerant polyhydroxyalkanoate (PHA) producing bacterium, Cupriavidus sp. strain CB15, was isolated from corncob compost. The potential ability to synthesize PHA was confirmed by detection of PHA synthase (phaC) gene in the genome. This strain could produce poly(3-hydroxybutyrate) [P(3HB)] with 0.95 g/L (PHA content 75.3 wt% of dry cell weight 1.24 g/L) using glycerol as a carbon source. The concentration of PHA was enhanced and optimized based on one-factor-at-a-time (OFAT) experiments and response surface methodology (RSM). The optimum conditions for growth and PHA biosynthesis were 10 g/L glycerol, 0.78 g/L NH4Cl, shaking speed at 175 rpm, temperature at 45 °C, and cultivation time at 72 h. Under the optimized conditions, PHA production was enhanced to 2.09 g/L (PHA content of 74.4 wt% and dry cell weight of 2.81 g/L), which is 2.12-fold compared with non-optimized conditions. Nuclear magnetic resonance (NMR) analysis confirmed that the extracted PHA was a homopolyester of 3-hydyoxybutyrate. CONCLUSION Cupriavidus sp. strain CB15 exhibited potential for cost-effective production of PHA from glycerol.
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Affiliation(s)
- Anuyut Yootoum
- Interdisciplinary Program in Biotechnology, Graduate School, Chiang Mai University, Chiang Mai, 50200, Thailand
| | - Kittisak Jantanasakulwong
- School of Agro-Industry, Faculty of Agro-Industry, Chiang Mai University, 155 Mae Hia, Mueang, Chiang Mai, 50100, Thailand
- Cluster of Agro Bio-Circular-Green Industry (Agro BCG), Chiang Mai University, Chiang Mai, 50100, Thailand
| | - Pornchai Rachtanapun
- School of Agro-Industry, Faculty of Agro-Industry, Chiang Mai University, 155 Mae Hia, Mueang, Chiang Mai, 50100, Thailand
- Cluster of Agro Bio-Circular-Green Industry (Agro BCG), Chiang Mai University, Chiang Mai, 50100, Thailand
| | - Churairat Moukamnerd
- School of Agro-Industry, Faculty of Agro-Industry, Chiang Mai University, 155 Mae Hia, Mueang, Chiang Mai, 50100, Thailand
| | - Thanongsak Chaiyaso
- School of Agro-Industry, Faculty of Agro-Industry, Chiang Mai University, 155 Mae Hia, Mueang, Chiang Mai, 50100, Thailand
- Cluster of Agro Bio-Circular-Green Industry (Agro BCG), Chiang Mai University, Chiang Mai, 50100, Thailand
| | - Chayakorn Pumas
- Department of Biology, Faculty of Science, Chiang Mai University, 239 Huaykaew Road, Suthep, Mueang, Chiang Mai, 50200, Thailand
| | - Nuttapol Tanadchangsaeng
- College of Biomedical Engineering, Rangsit University, 52/347 Lak-Hok, Pathumthani, 12000, Thailand
| | - Masanori Watanabe
- Graduate School of Agriculture, Yamagata University, 1-23 Wakaba-Machi, Tsuruoka, Yamagata, 997-8555, Japan
| | - Toshiaki Fukui
- School of Life Science and Technology, Tokyo Institute of Technology, 4259 Nagatsuta-Cho, Midori-Ku, Yokohama, Kanagawa, 226-8503, Japan
| | - Chayatip Insomphun
- School of Agro-Industry, Faculty of Agro-Industry, Chiang Mai University, 155 Mae Hia, Mueang, Chiang Mai, 50100, Thailand.
- Cluster of Agro Bio-Circular-Green Industry (Agro BCG), Chiang Mai University, Chiang Mai, 50100, Thailand.
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Abu Hasan NS, Mohamad S, Sy Mohamad SF, Arzmi MH, Supian NNI. Ex-Situ Development and Characterization of Composite Film Based on Bacterial Cellulose Derived from Oil Palm Frond Juice and Chitosan as Food Packaging. PERTANIKA JOURNAL OF SCIENCE AND TECHNOLOGY 2023. [DOI: 10.47836/pjst.31.3.03] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/31/2023]
Abstract
The development of alternative food packaging films using bio-based residues is in great demand for replacing petroleum-based packaging materials. However, large-scale application is severely limited by costly production and poor performance. This study investigates the ex-situ modification of bacterial cellulose (BC) produced by Acetobacter xylinum in oil palm fronds juice to obtain BC-Chitosan (BCC) films. FTIR revealed the structure of amide I and II bands, confirming the presence of chitosan in BCC films. The FE-SEM images of BCC films showed the formation of a thick chitosan layer with increasing chitosan incorporated into the BC surface structure. The coated chitosan layer observed improved mechanical properties in BCC films due to the disappearance of empty pores between BC fibers. Increments in chitosan concentration slightly decreased the thermal behavior of BCC. The antimicrobial effects of BCC films were effective against Gram-positive bacteria (Staphylococcus aureus) when the concentration of chitosan incorporated was above 0.6 %w/v. This study reveals the potential of extending the application of BC derived from oil palm frond juice (OPFJ) for developing food packaging materials.
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Effect of glucose and olive oil as potential carbon sources on production of PHAs copolymer and tercopolymer by Bacillus cereus FA11. 3 Biotech 2017; 7:87. [PMID: 28501987 DOI: 10.1007/s13205-017-0712-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2017] [Accepted: 03/30/2017] [Indexed: 12/29/2022] Open
Abstract
In this study, the influence of different physicochemical parameters on the yield of polyhydroxyalkanoates (PHAs) produced by Bacillus cereus FA11 is investigated. The physicochemical factors include pH, temperature, time, inoculum size and its age, agitation speed and composition of the glucose rich peptone deficient (GRPD) medium. During two-stage fermentation, B. cereus FA11 produced a significantly high (p < 0.05) yield (80.59% w/w) of PHAs copolymer using GRPD medium containing glucose (15 g/L) and peptone (2 g/L) at pH 7, 30 °C and 150 rpm after 48 h of incubation. On the other hand, the presence of olive oil (1% v/v) and peptone (2 g/L) in the GRPD medium resulted in biosynthesis of tercopolymer during two-stage fermentation and the yield of tercopolymer was 60.31% (w/w). The purified PHAs was characterized by Fourier transform infrared spectroscopy and proton resonance magnetic analysis. Proton resonance magnetic analysis confirmed that the tercopolymer was comprised of three different monomeric subunits, i.e., 3-hydroxybutyrate, 3-hydroxyvalerate and 6-hydroxyhexanoate.
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Farid NFSM, Ariffin H, Mamat MRZ, Mohd Zahari MAK, Hassan MA. Non-solvent-based pretreatment of poly(3-hydroxybutyrate) for improved bio-based crotonic acid production. RSC Adv 2015. [DOI: 10.1039/c5ra03017j] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Production of high purity crotonic acid from bio-based resources is an alternative to petroleum-based synthesis and omits the need for a purification process.
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Affiliation(s)
- Nur Falia Shazana Manja Farid
- Department of Bioprocess Technology
- Faculty of Biotechnology and Biomolecular Sciences
- Universiti Putra Malaysia
- 43400 UPM Serdang
- Malaysia
| | - Hidayah Ariffin
- Department of Bioprocess Technology
- Faculty of Biotechnology and Biomolecular Sciences
- Universiti Putra Malaysia
- 43400 UPM Serdang
- Malaysia
| | - Mohd Rahimi Zakaria Mamat
- Department of Bioprocess Technology
- Faculty of Biotechnology and Biomolecular Sciences
- Universiti Putra Malaysia
- 43400 UPM Serdang
- Malaysia
| | | | - Mohd Ali Hassan
- Department of Bioprocess Technology
- Faculty of Biotechnology and Biomolecular Sciences
- Universiti Putra Malaysia
- 43400 UPM Serdang
- Malaysia
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Biotechnological Production of Polyhydroxyalkanoates: A Review on Trends and Latest Developments. ACTA ACUST UNITED AC 2014. [DOI: 10.1155/2014/802984] [Citation(s) in RCA: 68] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Polyhydroxyalkanoates (PHA) producers have been reported to reside at various ecological niches which are naturally or accidently exposed to high organic matter or growth limited conditions such as dairy wastes, hydrocarbon contaminated sites, pulp and paper mill wastes, agricultural wastes, activated sludges of treatment plants, rhizosphere, and industrial effluents. Few among them also produce extracellular by-products like rhamnolipids, extracellular polymeric substances, and biohydrogen gas. These sorts of microbes are industrially important candidates for the reason that they can use waste materials of different origin as substrate with simultaneous production of valuable bioproducts including PHA. Implementation of integrated system to separate their by-products (intracellular and extracellular) can be economical in regard to production. In this review, we have discussed various microorganisms dwelling at different environmental conditions which stimulate them to accumulate carbon as polyhydroxyalkanoates granules and factors influencing its production and composition. A brief aspect on metabolites which are produced concomitantly with PHA has also been discussed. In conclusion, exploring of capabilities like of dual production by microbes and use of wastes as renewable substrate under optimized cultural conditions either in batch or continuous process can cause deduction in present cost of bioplastic production from stored PHA granules.
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