Screening of Some Fungal Isolates for Lipase Production and Optimization of Cultural Conditions for the Most Potent Isolate

2012 ◽  
Vol 47 (1) ◽  
pp. 79-95
Keyword(s):  
Lipase Production ◽  
Cultural Conditions ◽  
Fungal Isolates

scholarly journals Optimization of lipase production using fungal isolates from oily residues

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Leticia Miranda Cesário ◽  
Giovanna Pinto Pires ◽  
Rafael Freitas Santos Pereira ◽  
Elisabete Fantuzzi ◽  
André da Silva Xavier ◽  
...  
Keyword(s):  
Aspergillus Niger ◽  
Large Scale ◽  
Lipase Production ◽  
Medium Composition ◽  
Scale Production ◽  
Time Curve ◽  
Promising Alternative ◽  
Highly Active ◽  
Fungal Isolates ◽  
Large Scale Production

Abstract Lipases are triacylglycerol hydrolases that catalyze hydrolysis, esterification, interesterification, and transesterification reactions. These enzymes are targets of several industrial and biotech applications, such as catalysts, detergent production, food, biofuels, wastewater treatment, and others. Microbial enzymes are preferable for large scale production due to ease of production and extraction. Several studies have reported that lipases from filamentous fungi are predominantly extracellular and highly active. However, there are many factors that interfere with enzyme production (pH, temperature, medium composition, agitation, aeration, inducer type, and concentration, etc.), making control difficult and burdening the process. This work aimed to optimize the lipase production of four fungal isolates from oily residues (Penicillium sp., Aspergillus niger, Aspergillus sp., and Aspergillus sp.). The lipase-producing fungi isolates were morphologically characterized by optical and scanning electron microscopy. The optimal lipase production time curve was previously determined, and the response variable used was the amount of total protein in the medium after cultivation by submerged fermentation. A complete factorial design 32 was performed, evaluating the temperatures (28 °C, 32 °C, and 36 °C) and soybean oil inducer concentration (2%, 6%, and 10%). Each lipase-producing isolate reacted differently to the conditions tested, the Aspergillus sp. F18 reached maximum lipase production, compared to others, under conditions of 32 °C and 2% of oil with a yield of 11,007 (µg mL−1). Penicillium sp. F04 achieved better results at 36 °C and 6% oil, although for Aspergillus niger F16 was at 36 °C and 10% oil and Aspergillus sp. F21 at 32 °C and 2% oil. These results show that microorganisms isolated from oily residues derived from environmental sanitation can be a promising alternative for the large-scale production of lipases. Graphical Abstract

Influence of Cultural Conditions on Lipase Production in Candida albicans

2009 ◽  
Vol 1 (3) ◽  
pp. 118-123 ◽  
Author(s):  
Binn Jatta ◽  
M. Gunasekara ◽  
N. Mohan
Keyword(s):  
Candida Albicans ◽  
Lipase Production ◽  
Cultural Conditions

New cytotoxic agents isolated from various fungal isolates via activity-guided fractionation

Planta Medica ◽  
2014 ◽  
Vol 80 (10) ◽  
Author(s):  
LA Giddings ◽  
S Shipley ◽  
T DeLloyd ◽  
DJ Newman
Keyword(s):  
Cytotoxic Agents ◽  
Fungal Isolates

DIALOG Z HUMANIZMEM RENESANSOWYM W DZIEŁACH PIOTRA SKARGI / PIOTR SKARGA’S DIALOGUE WITH RENAISSANCE HUMANISM

2013 ◽  
Vol 54 (4-5) ◽  
pp. 405-424
Author(s):  
Alina Nowicka -Jeżowa
Keyword(s):  
Catholic Church ◽  
Roman Catholic ◽  
Roman Catholic Church ◽  
Ignatian Spirituality ◽  
Clear Cut ◽  
Renaissance Humanism ◽  
Cultural Conditions ◽  
Political Views ◽  
The City ◽  
The Church

Summary The article tries to outline the position of Piotr Skarga in the Jesuit debates about the legacy of humanist Renaissance. The author argues that Skarga was fully committed to the adaptation of humanist and even medieval ideas into the revitalized post-Tridentine Catholicism. Skarga’s aim was to reformulate the humanist worldview, its idea of man, system of values and political views so that they would fit the doctrine of the Roman Catholic church. In effect, though, it meant supplanting the pluralist and open humanist culture by a construct as solidly Catholic as possible. He sifted through, verified, and re-interpreted the humanist material: as a result the humanist myth of the City of the Sun was eclipsed by reminders of the transience of all earthly goods and pursuits; elements of the Greek and Roman tradition were reconnected with the authoritative Biblical account of world history; and man was reinscribed into the theocentric perspective. Skarga brought back the dogmas of the original sin and sanctifying grace, reiterated the importance of asceticism and self-discipline, redefined the ideas of human dignity and freedom, and, in consequence, came up with a clear-cut, integrist view of the meaning and goal of the good life as well as the proper mission of the citizen and the nation. The polemical edge of Piotr Skarga’s cultural project was aimed both at Protestantism and the Erasmian tendency within the Catholic church. While strongly coloured by the Ignatian spirituality with its insistence on rigorous discipline, a sense of responsibility for the lives of other people and the culture of the community, and a commitment to the heroic ideal of a miles Christi, taking headon the challenges of the flesh, the world, Satan, and the enemies of the patria and the Church, it also went a long way to adapt the Jesuit model to Poland’s socio-cultural conditions and the mentality of its inhabitants.

History Turmoil And Politico-Cultural Conditions of the Sub-Continental Men In Salman Rushdie’s Midnight’s Children

2015 ◽  
Vol 2 (2) ◽  
pp. 26-28
Author(s):  
Gunasekaran N ◽  
Bhuvaneshwari S
Keyword(s):  
Middle Class ◽  
Salman Rushdie ◽  
Fiction Writing ◽  
Pluralistic Society ◽  
Post Colonial ◽  
Cultural Conditions ◽  
The World ◽  
Midnight's Children ◽  
First Time

Salman Rushdie remains a major Indian writer in English. His birth coincides with the birth of a new modern nation on August 15, 1947. He has been justly labelled by the critics as a post-colonial writer who knows his trade well. His second novel Midnight’s Children was published in 1981 and it raised a storm in the hitherto middle class world of fiction writing both in English and in vernaculars. Rushdie for the first time burst into the world of fiction with subversive themes like impurity, illegitimacy, plurality and hybridity. He understands that a civilization called India may be profitably understood as a dream, a collage of many colours, a blending of cultures and nationalities, a pluralistic society and in no way unitary.

Metamorphosen des Autors im Internet

2018 ◽  
Vol 2018 (1) ◽  
pp. 73-82
Author(s):  
Julia Genz
Keyword(s):  
Web 2.0 ◽  
Digital Media ◽  
Intrinsic Value ◽  
The Other ◽  
Cultural Conditions ◽  
Works Of Art ◽  
Periodic Schedule ◽  
Literary Authorship ◽  
The One ◽  
Death Of The Author

Digital media transform social options of access with regard to producers, recipients, and literary works of art themselves. New labels for new roles such as »prosumers « and »wreaders« attest to this. The »blogger« provides another interesting new social figure of literary authorship. Here, some old desiderata of Dadaism appear to find a belated realization. On the one hand, many web 2.0 formats of authorship amplify and widen the freedom of literary productivity while at the same time subjecting such production to a periodic schedule. In comparison to the received practices of authors and recipients many digital-cultural forms of narrating engender innovative metalepses (and also their sublation). Writing in the net for internet-publics enables the deliberate dissolution of the received autobiographical pact with the reader according to which the author’s genuine name authenticates the author’s writing. On the other hand, the digital-cultural potential of dissolving the autobiographical pact stimulates scandals of debunking and unmasking and makes questions of author-identity an issue of permanent contestation. Digital-cultural conditions of communication amplify both: the hideand- seek of authorship as well as the thwarting of this game by recipients who delight in playing detective. In effect, pace Foucault’s and Barthes’ postulates of the death of the author, the personality and biography of the author once again tend to become objects of high intrinsic value

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