Exopolysaccharides and Antimicrobial Biosurfactants Produced by Paenibacillus macerans TKU029

Liang, Tzu-Wen; Wu, Chia-Hung; Cheng, Wei-Ting; Chen, Yu‐Chi; Wang, Chuan-Lu; Wang, I-Li; Wang, San-Lang

doi:10.1007/s12010-013-0568-5

Cited by 69 publications

(69 citation statements)

References 33 publications

(50 reference statements)

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“…It was previously reported that the production of EPS was associated with cell growth (Raza et al, 2011;Wang et al, 2011;Liang et al, 2014). In the present study the bacterial growth (2.093 OD at 600 nm) was maximum after 36 h of incubation and EPS production (1.9 mg/ml) was high after 72 h incubation at 37 °C.…”

Section: Resultssupporting

confidence: 65%

Production and Optimization of Extracellular Polysaccharides from Paenibacillus sp.

Dhas¹,

Almalki²,

Vijayaraghavan³

et al. 2017

Int.J.Curr.Res.Aca.Rev.

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Article InfoExtracellular polymeric substances (EPSs) are produced by a wide array of bacteria for protection against aggregation, expression of virulence and adhesion. Growth associated EPS production was determined by Paenibacillus sp. in submerged fermentation. To improve the productivity and efficiency of EPS from Paenibacillus sp. the physical factors and nutrient components were optimized. The bacterial growth (2.093 OD at 600 nm) was maximum after 36 h of incubation and EPS production (1.9 mg/ml) was high after 3 days of incubation at 37 °C. EPS production was found to be maximum at pH 7.0 (2.31 mg/ml), and at 40 °C (2.49 mg/ml). Supplementation of 1% sucrose (4.30 mg/ml) supported more EPS production. Among the nitrogen sources, addition of yeast extract (0.1%) supported maximum EPS production (5.36 mg/ml). Among inorganic sources, NH 4 Cl significantly influenced on EPS production.

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Section: Resultssupporting

confidence: 65%

Production and Optimization of Extracellular Polysaccharides from Paenibacillus sp.

Dhas¹,

Almalki²,

Vijayaraghavan³

et al. 2017

Int.J.Curr.Res.Aca.Rev.

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“…TKU023 [18], and P. macerans TKU029 [19], have been reported as the sole C/N source for the production of exopolysaccharides (EPOs) using SPP, and some of these EPOs showed antioxidant activity. In this study, EPOs were also found in the culture broth of SPP-containing medium fermented by Paenibacillus sp.…”

Section: Resultsmentioning

confidence: 99%

Conversion of Squid Pen to Homogentisic Acid via Paenibacillus sp. TKU036 and the Antioxidant and Anti-Inflammatory Activities of Homogentisic Acid

Wang

Zhang

et al. 2016

Marine Drugs

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The culture supernatant of Paenibacillus sp. TKU036, a bacterium isolated from Taiwanese soils, showed high antioxidant activity (85%) when cultured in a squid pen powder (SPP)-containing medium at 37 °C for three days. Homogentisic acid (2,5-dihydroxyphenylacetic acid, HGA) was isolated and found to be the major antioxidant in the culture supernatant of the SPP-containing medium fermented by Paenibacillus sp. TKU036. Tryptophan was also present in the culture supernatant. The results of high-performance liquid chromatography (HPLC) fingerprinting showed that HGA and tryptophan were produced via fermentation but did not pre-exist in the unfermented SPP-containing medium. Neither HGA nor tryptophan was found in the culture supernatants obtained from the fermentation of nutrient broth or other chitinous material, i.e., medium containing shrimp head powder, by Paenibacillus sp. TKU036. The production of HGA via microorganisms has rarely been reported. In this study, we found that squid pen was a potential carbon and nitrogen source for Paenibacillus sp. Tryptophan (105 mg/L) and HGA (60 mg/L) were recovered from the culture supernatant. The isolated HGA was found to have higher antioxidant activity (IC50 = 6.9 μg/mL) than α-tocopherol (IC50 = 17.6 μg/mL). The anti-inflammatory activity of the isolated HGA (IC50 = 10.14 μg/mL) was lower than that of quercetin (IC50 = 1.14 μg/mL). As a result, squid pen, a fishery processing byproduct, is a valuable material for the production of tryptophan and the antioxidant and anti-inflammatory HGA via microbial conversion.

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“…A high molecular weight polysaccharides bioemulsifiers produced by Variovorax paradoxus were able to produce a thick stable oil/water emulsion and maintained the emulsification activity after boiling and at low temperatures (Franzetti et al 2012). An exopolysaccharide derived from Paenibacillus macerans demonstrated a great stability at 121°C for 20 min, over a pH range from 3 to 11, and in saline conditions (Liang et al 2014). Kokare et al (2007) showed a good stability at room temperature (28°C) of the bioemulsifier derived from Streptomyces sp.…”

Section: De-emulsification Capacitymentioning

confidence: 99%

High molecular weight bioemulsifiers, main properties and potential environmental and biomedical applications

Mnif

Ghribi

2015

World J Microbiol Biotechnol

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High molecular weight bioemulsifiers are amphipathic polysaccharides, proteins, lipopolysaccharides, lipoproteins, or complex mixtures of these biopolymers, produced by a wide variety of microorganisms. They are characterized by highly structural diversity and have the ability to decrease the surface and interfacial tension at the surface and interface respectively and/or emulsify hydrophobic compounds. Emulsan, fatty acids, phospholipids, neutral lipids, exopolysaccharides, vesicles and fimbriae are among the most popular high molecular weight bioemulsifiers. They have great physic-chemical properties like tolerance to extreme conditions of pH, temperature and salinity, low toxicity and biodegradability. Owing their emulsion forming and breaking capacities, solubilization, mobilization and dispersion activities and their viscosity reduction activity; they possess great environmental application as enhancer of hydrocarbon biodegradation and for microbial enhanced oil recovery. Besides, they are applied in biomedical fields for their antimicrobial and anti-adhesive activities and involvement in immune responses.

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Exopolysaccharides and Antimicrobial Biosurfactants Produced by Paenibacillus macerans TKU029

Cited by 69 publications

References 33 publications

Production and Optimization of Extracellular Polysaccharides from Paenibacillus sp.

Production and Optimization of Extracellular Polysaccharides from Paenibacillus sp.

Conversion of Squid Pen to Homogentisic Acid via Paenibacillus sp. TKU036 and the Antioxidant and Anti-Inflammatory Activities of Homogentisic Acid

High molecular weight bioemulsifiers, main properties and potential environmental and biomedical applications

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