Production of a novel alkaline lipase by Fusarium globulosum using neem oil, and its applications

A low-temperature, alkaline, and detergent-compatible lipase from Fusarium globulosum (FGL) has been produced using an inexpensive source, viz. neem oil. Maximum lipase production of 12 300 U/L was achieved in 96 h on optimizing various physicochemical parameters. The lipase exhibited remarkable stability in the presence of commercial detergents, bleaching agents, and proteases. The lipase showed a novel property of marked activation on prolonged incubation at alkaline pH. Wash performance analysis of the commercial detergent for removal of fatty stains improved upon addition of this lipase.

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Dimensionless model and performance analysis of low temperature thermoelectric materials

Materials Today Proceedings ◽

10.1016/j.matpr.2021.01.580 ◽

2021 ◽

Author(s):

Vismay Chandra ◽

Taher Balasinorwala ◽

N.B. Dhokey

Keyword(s):

Performance Analysis ◽

Low Temperature ◽

Thermoelectric Materials ◽

And Performance

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A statistical approach for optimization of alkaline lipase production by ascidian associated—Halobacillus trueperi RSK CAS9

Biotechnology Reports ◽

10.1016/j.btre.2015.09.002 ◽

2015 ◽

Vol 8 ◽

pp. 64-71 ◽

Cited By ~ 7

Author(s):

Ramamoorthy Sathishkumar ◽

Gnanakkan Ananthan ◽

Kathirvel Iyappan ◽

Chinnathambi Stalin

Keyword(s):

Statistical Approach ◽

Lipase Production ◽

Alkaline Lipase

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Assessment of the physicochemical variables of a subtropical reservoir in the northwest of Argentina

Acta Limnologica Brasiliensia ◽

10.1590/s2179-975x2014000400005 ◽

2014 ◽

Vol 26 (4) ◽

pp. 367-380 ◽

Cited By ~ 2

Author(s):

Beatriz Concepción Tracanna ◽

Silvia Nelly Martínez De Marco ◽

María de los Ángeles Taboada ◽

Virginia Mirande ◽

María de Lourdes Gultemirian ◽

...

Keyword(s):

Dissolved Oxygen ◽

Physicochemical Parameters ◽

Thermal Stratification ◽

Oxygen Demand ◽

Limiting Factor ◽

Alkaline Ph ◽

A Value ◽

Sodium Calcium ◽

Calcium Bicarbonate ◽

Laboratory Results

AIM: The Escaba dam is located in the south of the Tucumán province, Argentina, at 650 m above sea level. It has an extension of 541 ha. and a depth of 65 m and its tributaries are the Chavarría, Las Moras, El Chorro and Singuil rivers. The climate is mild with dry winters and rainy summers. The objective of this study was to characterize physicochemical parameters in the limnetic zone of the dam and the mouths of the tributaries to determine the water quality. METHODS: Seasonal sampling was carried out between August 2010 and May 2012. Temperature, transparency, pH and electrical conductivity were field measured, whereas dissolved oxygen, biochemical oxygen demand (BOD5), major ion constituents and nitrogen and phosphate compounds were analyzed at the laboratory. RESULTS: The water was classified as sodium-calcium-bicarbonate with neutral to alkaline pH, and thermal stratification during spring and summer. The water assayed was well oxygenated except for the bottom of the limnetic zone during the summer months. Lowest transparency was measured in the El Chorro River in November 2011 (0.12 m) and highest degree of transparency in the Singuil River during the winter of 2010 (4.1 m). The waters assayed showed weak mineralization with conductivities between 83 and 218 µS.cm-1. Maximum BOD5 value (183 mg.L-1) was measured in the Singuil River in spring 2010. Highest values for the different nitrogen compounds were as follows: 7 mg NO3-.L-1 at the bottom of the limnetic zone in August 2010, 0.07 mg NO2-.L-1 in the Las Moras River in May 2011 and 1.8 mg NH4+.L-1 in the Chavarría River in March 2011. During the summer of 2012 orthophosphate reached a value of 0.22 mg.L-1 at the bottom of the limnetic zone. The TN/TP ratio revealed that phosphate was generally the limiting factor and rarely nitrogen. CONCLUSIONS: Considering the TN, TP and transparency parameters the ecosystem was classified as hypertrophic. PCA allowed a seasonal differentiation of the sites, and components 1 and 2 classified the samples according to nutrient gradient, dissolved oxygen, BOD5 and temperature.

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