Microbial. Transformation and Biodegradation of Calotropis Procera Latex Towards Obtaining Value Added Chemicals, Pharmaceuticals and Fuels

Sharma, D. K.; Tiwari, Manish Kumar; Arora, Mukta; Behera, Basanta Kumara

doi:10.1080/10916469708949648

Cited by 7 publications

(3 citation statements)

References 9 publications

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“…Studies on the biotransformation and biodegradation of latex of the petrocrops (i.e., hydrocarbons, alicyclic paraffin, compounds, terpenes, etc.) have also been reported from the author's laboratory (Sharma et al, 1997;Behera et al, 2002). The similar research work for the production of gases such as biogas (CO 2 and CH 4 ), solvents such as ethanol, butanol, isopropanol, acetone etc.…”

Section: Future Work In the Area Of Meor And Oil Pollution Controlsupporting

confidence: 64%

Studies on the Production of Biosurfactant for the Microbial Enhanced Oil Recovery by Using Bacteria Isolated from Oil Contaminated Wet Soil

Agarwal

Sharma

2009

Petroleum Science and Technology

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There are obvious advantages of biosurfactants over chemical surfactants. The developing shortage of oil and rapid increase of oil prices is putting pressure on oil companies to recover as much oil as possible from the wells to sustain the oil economy. Therefore, there is a need to research some "super bugs," which can produce active and stable biosurfactants in good yields. Five bacterial strains presently isolated from the oil-contaminated soil were selected for the screening for biosurfactant production, via three different methods: surface tension measurements, drop-collapsing test, and emulsification index (EI 24 ) test. Two thermophillic isolates coded as SGI and LFA were found to be the suitable candidates for biosurfactant production. In fact, the biosurfactant produced by the isolate SGI led to the reduction of surface tension up to 26 m/N/m; thus, SGI was selected for the further studies. Biosurfactant production by the thermophillic isolate SGI was found to be growth-associated in all conditions tested. Biosurfactant production using different cheaper carbon substrates was studied. The production of biosurfactant was also studied using isolate SGI, under different conditions of high temperature, NaCl concentration, pH, carbon source, and initial nitrogen concentration. The biosurfactant was found to produce a relatively stable emulsion with hydrocarbons at a wide range of pH. It was also found to be stable at various pH ranges (7.0-14.0) for SGI and was also found to be thermostable for 1 hr at 125 ı C, based on the value of surface tension. There is a wide array of further studies in the area of microbial enhanced oil recovery (MEOR) including further boosting the activity of the isolate by using adaptation, enrichment, and nutrient enrichment techniques.

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Section: Future Work In the Area Of Meor And Oil Pollution Controlsupporting

confidence: 64%

Studies on the Production of Biosurfactant for the Microbial Enhanced Oil Recovery by Using Bacteria Isolated from Oil Contaminated Wet Soil

Agarwal

Sharma

2009

Petroleum Science and Technology

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“…Calotropis procera belongs to the family Asclepiadaceae and is a soft wooded, evergreen perennial shrub having few stems, few branches and relatively few leaves concentrated near the growing tip. A copious white sap (referred to as the latex) flows whenever the stems or leaves are cut (Ahmed et al, 2005;Liogier, 1995;Sharma et al, 1997;Howard, 1989). C. procera is often found growing in open habitat with little competition and it also grows favourably in dry habitat (Parrotta, 2001).…”

Section: Introductionmentioning

confidence: 99%

Effect of Ethanol Extract of Calotropis procera Root Bark on Carbon Tetrachloride-Induced Hepatonephrotoxicity in Female Rats

Dahiru¹,

Amos²,

Sambo³

2013

JJBS

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Calotropis procera root is used in traditional medical practice for the treatment of various ailments. The possible hepatoprotective and nephroprotective activities of the ethanolic extract of C. procera root in female rats were investigated. Carbon tetrachloride (CCl 4) was used to induce hepatotoxicity and nephrotoxicity with significant (P < 0.05) increase in the level of serum enzyme markers of hepatotoxicity and nonenzyme markers of nephrotoxicity. Administration of 150 and 300 mg/kg body weight (bw) of the ethanolic extract of C. procera root did not protect the liver and kidney from CCl 4induced toxicity. Pretreatment with the extract rather potentiated the toxicity induced by CCl 4. This research result did not support the reported hepatoprotective activity of the extract. It is advised strongly that caution should be taken when ingesting alcoholic preparations of C. procera root.

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“…The medicinal functions of the various parts of this plant have been widely reported [6,7,9]. Furthermore, the seeds easily propagated from the plant are reported to be an acceptable feedstock for biodiesel [3,10,11]. Besides, there is still a very import part of the plant can be used widely, that is, calotropis gigantea fiber.…”

Section: Introductionmentioning

confidence: 99%

Evaluation on a Promising Natural Cellulose Fiber- Calotropis Gigantea Fiber

Cheng

et al. 2018

TTEFT

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Calotropis gigantea fiber is a kind of natural cellulose fiber that regains increasing attention nowadays, thus it is evaluated here aiming to replace cotton or kapok fibers to some extent. New discoveries are found about its morphological structure, indicating that it has sharper, closed tip and coarser, open end, and that it usually has 4-6 grooves along its longitudinal axis, with fully distributed microvillus on its surface. The FTIR spectrum shows the fiber mainly contain cellulose, lignin and hemi-cellulose component. X-ray diffraction analysis shows that the fiber has higher crystallinity in comparison with kapok fiber. In term of breaking strength, the fiber is obvious lower than cotton fiber and a little higher than kapok fiber. Furthermore, the fiber has good water absorbing and releasing capability, implying it has excellent water transmissivity.

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Microbial. Transformation and Biodegradation of Calotropis Procera Latex Towards Obtaining Value Added Chemicals, Pharmaceuticals and Fuels

Cited by 7 publications

References 9 publications

Studies on the Production of Biosurfactant for the Microbial Enhanced Oil Recovery by Using Bacteria Isolated from Oil Contaminated Wet Soil

Studies on the Production of Biosurfactant for the Microbial Enhanced Oil Recovery by Using Bacteria Isolated from Oil Contaminated Wet Soil

Effect of Ethanol Extract of Calotropis procera Root Bark on Carbon Tetrachloride-Induced Hepatonephrotoxicity in Female Rats

Evaluation on a Promising Natural Cellulose Fiber- Calotropis Gigantea Fiber

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