Effect of various surfactants (cationic, anionic and non-ionic) on the growth of Aspergillus parasiticus (NRRL 2999) in relation to aflatoxin production

Kosuri, Tanuja; Hemalatha, Kalidindi; Rupula, Karuna; Rao, Beedu Sashidhar

doi:10.1007/s12550-010-0050-y

Cited by 17 publications

(7 citation statements)

References 31 publications

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“…bassiana. Results of the growth inhibition of B. bassiana in the additives were in accordance with those of Tanuja et al (2010) who stated that the negative impact of surfactants to microorganism was probably due to increased cell permeability and amino acid leakage through inner membrane. Formulation of myco-insecticide must be compatible with the agent and must enhance its performance and, ideally, must maintain an adequate shelf-life of the agent in order to be successful (Derakhshan et al 2008).…”

Section: B) Spore Loadsupporting

confidence: 87%

In vitro evaluation for compatibility of additives with Beauveria bassiana (Balsamo) Vuillemin

Swathi

Visalakshy

Das

2018

Egypt J Biol Pest Control

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An in vitro evaluation was conducted for compatibility of 12 commonly used additives at three different concentrations of (0.1, 0.5, and 1.00%) with Beauveria bassiana through poisoned food technique. The results were expressed as radial growth and growth inhibition of B. bassiana on an additive treated medium. All the additives showed an inhibition in mycelial growth of B. bassiana, either partially or completely depending on their concentrations. On overall basis, carboxylmethyl cellulose (CMC) showed the highest radial growth with a least growth inhibition of (77.16 mm and 8.03%, respectively), followed by Kaolite (69.07 mm and 17.65%, respectively) and silica gel (65.20 mm and 22.25%, respectively). These findings concluded that CMC could be used in formulations of B. bassiana with the highest spore load of 4.67 × 10 8 spore's ml −1 .

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Section: B) Spore Loadsupporting

confidence: 87%

In vitro evaluation for compatibility of additives with Beauveria bassiana (Balsamo) Vuillemin

Swathi

Visalakshy

Das

2018

Egypt J Biol Pest Control

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“…Selected surfactants have been shown by Chen et al, (2006) to restrain the degradation of polycyclic aromatic hydrocarbons by white-rot fungi. In other related studies, surfactants have been shown to inhibit spore germination and ergosterol production by fungi (Kozirog et al, 2018;Mwamburi et al, 2015;Tanuja et al, 2010). It can thus be generalized that surfactants puts a pressure on the hydrocarbon degrading ability of fungi, and this pressure can be relaxed in the presence of nutrients as observed in this study.…”

Section: Peekate Pl; Konne Jl; Abam Tkssupporting

confidence: 69%

Remediation of Artificially Hydrocarbon Polluted Vadose Zone Soil in Glass Column through Percolation with Solution of Nutrient, Nutrient-Surfactant or Surfactant

Peekate¹,

Konne²,

Abam³

2020

jasem

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Remediation of hydrocarbon polluted vadose zone (HPVZ) through percolation with solution of nutrient, nutrient-surfactant, or surfactant in glass columns was investigated in this study using standard methods. Percolated liquids from the columns and soils retrieved at the end of the experiment were analyzed for nitrate, phosphate, sulphate, total-petroleum hydrocarbon, and selected microbial groups. Results obtained showed that there were nitrate, phosphate, and sulphate in the percolated liquids. Cumulative hydrocarbon in the percolated liquids was 5.35 – 7.59 % of cumulative hydrocarbon start-up concentration in the columns. Cumulative hydrocarbon attenuation across soil layers in column flooded with solution of nutrients (column NT), nutrient-surfactant (column NTS), and surfactant (column SF) were 89.29, 95.27, and 66.92 % respectively. There was more phosphate reduction in column NTS, and more sulphate reduction in column NT. Hydrocarbon-utilizing fungi in columns NT and NTSincreased from 3.5 Log10 CFU.g-1 to between 4.0 – 5.0 Log10 CFU.g-1, whereas a decrease was observed for column SF. Hydrocarbon-utilizing bacteria in all the columns increased from between 1.0 – 2.5 Log10 CFU.g-1 to between 2.0 - 3.5 Log10 CFU.g-1. Emergence of hydrocarbon utilization among anaerobic bacteria population was also observed in all the columns. It is concludedthat percolation with nutrient-surfactant solution will be more effective in remediation of HPVZ, and that consequential migration of nutrients alongside hydrocarbons into groundwater canaid in enhancing biodegradation of the infiltrated hydrocarbons. Keywords: Biodegradation; petroleum hydrocarbons; vadose zone; inorganic nutrients; surfactant

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“…However, the biomass decreased rapidly after day 8 due to the negative effect, i.e. damaging the cell membrane, on the cell growth after long‐time reaction or long‐time harmful interaction with other bio‐components in cells 22 …”

Section: Resultsmentioning

confidence: 99%

Production of phenolic compounds and antioxidant activity via bioconversion of wheat straw by Inonotus obliquus under submerged fermentation with the aid of a surfactant

et al. 2020

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BACKGROUNDThis study investigated the effect of surfactants on wheat straw biodegradation and the growth‐associated generation of exo‐ and endo‐phenolic compounds (EPC and IPC) and antioxidant activity expression by liquid‐cultured Inonotus obliquus, an edible and medicinal mushroom, also known as a white rot fungus. Changes in the chemical composition and multiscale structure of wheat straw, in the production and activity of EPC and IPC and in individual flavonoids were analyzed.RESULTSFungal pretreatment decreased significantly the contents of all lignocellulose components, increased and enlarged substrate porosity and caused changes in the structure of wheat straw with the aid of Triton X‐100. A gradual increase in EPC and IPC production was observed up to 6.4‐ and 1.5‐fold for 9 days. The EPC obtained on day 9 showed the highest antioxidant activity (IC50 of 30.96 mg L−1) against 2,2‐diphenyl‐1‐picrylhydrazyl radicals. High‐performance liquid chromatographic results indicated the presence of high amounts of epicatechin‐3‐gallate (ECG; (374.9 mg g−1) and epigallocatechin‐3‐gallate (EGCG; 447.2 mg g−1) in the EPC; other polyphenols were also enhanced but to a lesser extent. Surfactant supplementation was effective in enhancing flavonoid production and in increasing antioxidant activity in EPC.CONCLUSIONSThe results indicated enhanced accumulation of phenolic compounds, particularly ECG and EGCG in Inonotus obliquus via biodegradation and bioconversion of lignocellulose residues. They also indicated enhancement in the production of several flavonoids and also an increase in antioxidant activity in the product by a surfactant‐treated process, which may be a useful way of exploiting underused lignocellulosic residues to various high‐added‐value functional ingredients. © 2020 Society of Chemical Industry

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Effect of various surfactants (cationic, anionic and non-ionic) on the growth of Aspergillus parasiticus (NRRL 2999) in relation to aflatoxin production

Cited by 17 publications

References 31 publications

In vitro evaluation for compatibility of additives with Beauveria bassiana (Balsamo) Vuillemin

In vitro evaluation for compatibility of additives with Beauveria bassiana (Balsamo) Vuillemin

Remediation of Artificially Hydrocarbon Polluted Vadose Zone Soil in Glass Column through Percolation with Solution of Nutrient, Nutrient-Surfactant or Surfactant

Production of phenolic compounds and antioxidant activity via bioconversion of wheat straw by Inonotus obliquus under submerged fermentation with the aid of a surfactant

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