Vermicomposting eliminates the toxicity of Lantana (Lantana camara) and turns it into a plant friendly organic fertilizer

Hussain, Naseer; Abbasi, S. A.

doi:10.1016/j.jhazmat.2015.04.073

Cited by 61 publications

(34 citation statements)

References 44 publications

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“…The infrared spectroscopy revealed an increase in aromaticity and polysaccharide reduction which indicates increase in humification/mineralization during composting process. Hussain et al (2015) applied FT-IR spectroscopy to identify the toxic constituents of lantana eliminated by vermicomposting. The FT-IR spectra confirmed that the phenols and the sesquiterpene lactones of lantana were destroyed by vermicomposting and the lignin content of lantana was also reduced in the final vermicompost.…”

Section: Fourier Transform Infrared Spectroscopy Analysis In Vermicommentioning

confidence: 99%

Instrumental characterization of organic wastes for evaluation of vermicompost maturity

Bhat

Singh

2017

J Anal Sci Technol

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Instrumental analysis of vermicompost with the help of modern technologies provides essential information on its maturity, before it can be used for agricultural application. Nowadays, vermicompost is considered as a promising organic alternative to chemical fertilizers in agriculture and horticulture. The objectives of this review are to summarize the sophisticated instrumental techniques such as scanning electron microscopy (SEM), fourier transform infrared (FT-IR) spectroscopy, thermogravimetry (TG), ultraviolet-visible (UV-vis) spectroscopy techniques, physico-chemical parameters (pH, electrical conductivity, organic carbon content, C:N ratio, nitrogen, phosphorus, potassium, sodium, calcium) and biological indicator (germination index) to determine the maturity of vermicompost produced from organic wastes. These techniques are reliable, fast and are capable of tracking organic waste degradation during the bioconversion process and fertilizing ability of the final product. SEM analysis provides essential information on surface morphology of vermicompost samples. The SEM micrograph of final vermicompost reveals disaggregation. In contrast, the initial SEM micrograph reflects robust and relatively contiguous structures. FT-IR spectroscopy technique is used to confirm the decomposition of polypeptides, polysaccharides, aliphatic, aromatic, carboxylic, phenolic groups and lignin during vermicomposting of organic wastes. TG method is used to characterize organic waste mineralization where progressive reduction in the mass loss of vermicompost indicates net mineralization and degradation. UV-vis spectroscopy is used to assess the degree of humification. The sharp fall in humification index during vermicomposting process indicates high level of organic material humification. Changes in physico-chemical and biological parameters are also an indicative parameter for organic waste mineralization as well as vermicompost stability and maturity.

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Section: Fourier Transform Infrared Spectroscopy Analysis In Vermicommentioning

confidence: 99%

Instrumental characterization of organic wastes for evaluation of vermicompost maturity

Bhat

Singh

2017

J Anal Sci Technol

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“…15, reveal a very prominent peak at 3397 cm À1 , which is known to be caused by the OeH stretching frequencies of alcohol and phenol (Pavia et al, 2001;Ravindran et al, 2013;Hussain et al, 2015). It is followed by peaks at 2923 and 2852 cm À1 which can be attributed to aliphatic CeH stretching of fatty acids and lipids (Xu et al, 2012;Teh et al, 2014).…”

Section: The Ft-ir Spectramentioning

confidence: 99%

Vermicomposting transforms allelopathic parthenium into a benign organic fertilizer

Hussain

Abbasi

2016

Journal of Environmental Management

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“…Figure 5 reproduces the FT-IR spectra of the substrate and its vermicompost. The substrate has a very prominent peak at 3397 cm −1 , which is known to be caused by the O−H Transformation of the pernicious and toxic weed parthenium 7 stretching frequencies of alcohols and phenols [67][68][69]. Next to it is a peak at 1737 cm −1 , caused by unsaturated sesquiterpene lactones [70,71].…”

Section: Differential Scanning Calorimetrymentioning

confidence: 99%

Transformation of the pernicious and toxic weed parthenium into an organic fertilizer by vermicomposting

Hussain

Abbasi

2016

International Journal of Environmental Studies

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In what is believed to be the first study of its kind, the compositions of the toxic and allelopathic weed parthenium, and its vermicompost, have been investigated using UV-visible and Fourier transform infrared spectroscopy, thermogravimetric analysis, differential scanning calorimetry, gas chromatography-mass spectroscopy, and scanning electron microscopy. The studies reveal that the weed is transformed into a totally benign organic fertilizer during the course of its vermicomposting. This is indicated by substantial improvements in the humification index, mineralization of organic matter, and degradation of complex aromatics such as lignin and polyphenols into simpler carbohydrates and lipids when parthenium is turned into its vermicompost. There are also significant fragmentation, bio-oxidation and molecular rearrangements of chemical compounds in parthenium vermicompost compared to the parent substrate. In particular, parthenin, which is principally responsible for the toxicity and allelopathy of parthenium, is completely degraded by the vermicomposting of parthenium. The study opens the way to profitable use of the millions of tonnes of parthenium that are generated annually, the continued proliferation of which causes great loss of biodiversity.

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Vermicomposting eliminates the toxicity of Lantana (Lantana camara) and turns it into a plant friendly organic fertilizer

Cited by 61 publications

References 44 publications

Instrumental characterization of organic wastes for evaluation of vermicompost maturity

Instrumental characterization of organic wastes for evaluation of vermicompost maturity

Vermicomposting transforms allelopathic parthenium into a benign organic fertilizer

Transformation of the pernicious and toxic weed parthenium into an organic fertilizer by vermicomposting

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