Decolorization of semisolid olive residues of “alperujo” during the solid state fermentation by Phanerochaete chrysosporium, Trametes versicolor, Pycnoporus cinnabarinus and Aspergillus niger

Aloui, Fathi; Abid, N.; Roussos, Sévastianos; Sayadi, Sami

doi:10.1016/j.bej.2007.01.005

Cited by 31 publications

(26 citation statements)

References 28 publications

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“…The ability of higher fungi to break down phenolic compounds is based on the secretion of extra‐cellular oxidases (ligninolytic enzymes) laccase, lignin peroxidase and manganese dependent (or independent) peroxidase . The secretion of these enzymes is strain‐dependent and influenced by various culture conditions . Non‐genetically modified yeast strains (like S. cerevisiae ), in general, do not contain in their genetic arsenal the potentiality of producing such types of enzymes, and, thus, the removal of phenol compounds and the decolorization of OMWs that are subjected to fermentation by these yeast species through the use of the above‐mentioned enzymes should be excluded.…”

Section: Discussionmentioning

confidence: 99%

Conversions of olive mill wastewater‐based media by Saccharomyces cerevisiae through sterile and non‐sterile bioprocesses

Sarris

Giannakis

Philippoussis

et al. 2012

J of Chemical Tech & Biotech

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Section: Discussionmentioning

confidence: 99%

Conversions of olive mill wastewater‐based media by Saccharomyces cerevisiae through sterile and non‐sterile bioprocesses

Sarris

Giannakis

Philippoussis

et al. 2012

J of Chemical Tech & Biotech

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“…However, olive mill wastes not always can be directly applied to soil since they exhibit toxic properties to several plants and soil micro organisms and can modify the equilibrium of soil nutrients. These inconveniences have led to the study of a broad number of possible remediation and treatment strategies (Sampedro et al 2007;Aloui et al 2008). Among them, composting TPOMW with other agricultural by-products has been proposed to obtain a stabilised, safe, balanced soil amendment (Cayuela et al 2005;Alburquerque et al 2006).…”

mentioning

confidence: 99%

Two-phase olive mill waste composting: enhancement of the composting rate and compost quality by grape stalks addition

2009

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Two-phase olive mill waste (TPOMW) is a semisolid sludge generated by the olive oil industry. Its recycling as a soil amendment, either unprocessed or composted, is being promoted as a beneficial agricultural practice in the Mediterranean area. One of the major difficulties when composting TPOMW is the compaction of the material due to its dough-like texture, which leads to an inadequate aeration. For this reason, the addition of bulking agents is particularly important to attain a proper composting process. In this study we followed the evolution of two composting mixtures (A and B) prepared by mixing equal amounts of TPOMW and sheep litter (SL) (in a dry weight basis). In pile B grape stalks (GS) were added (10% dry weight) as bulking agent to study their effect on the development of the composting process and the final compost quality. The incorporation of grape stalks to the composting mixture changed the organic matter (OM) degradation dynamics and notably reduced the total amount of lixiviates. The evolution of several maturation indices (C/N, germination index, water soluble carbon, humification indices, C/N in the leachates) showed a faster and improved composting process when GS were added. Moreover, chemical (NH4+, NO3(-), cation exchange capacity, macro and micronutrients, heavy metals) and physical properties (bulk and real densities, air content, total water holding capacity, porosity) of the final composts were analysed and confirmed the superior quality of the compost where GS were added.

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“…Many white-rot fungi grow well and perform the desired metabolism under solid-state conditions. For example, species of the genera Trametes, Phanerochaete, and Pycnoporus preferentially removed color and chemical oxygen demand from olive mill wastewaters and pulp mill black liquors under SSF cultivation conditions [61,76,77]. SSF using white-rot fungi has also been used to modify the lignin in agricultural residues, such as wheat straw, for biofuels processes [78].…”

Section: Species and Systems Investigatedmentioning

confidence: 98%

Pretreatment of Lignocellulosic Biomass Using Microorganisms: Approaches, Advantages, and Limitations

Canam¹,

Town²,

Iroba³

et al. 2013

Sustainable Degradation of Lignocellulosic Biomass - Techniques, Applications and Commercialization

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Additional information is available at the end of the chapter http://dx.doi.org/10.5772/55088 . IntroductionMuch of Earth s recent geologic history is dominated by periods of extensive glaciation, with relatively low global mean temperatures and correspondingly low atmospheric CO concentrations [ ]. The current interglacial period stands out as an anomaly because the atmospheric CO concentration has risen sharply above the range of approximately -parts per million by volume that has defined the past , years to reach levels that are nearly % higher than the biosphere has experienced over this time frame [ ]. This rapid increase in CO concentration is primarily due to the release of ancient fixed atmospheric CO into the modern atmosphere through the combustion of fossil fuel resources over the past years. Since it is clear from ice core records that atmospheric CO concentration has a strong positive correlation to global temperature, it is expected that changes to global climate are forthcoming [ ]. There are substantial uncertainties regarding the ability of terrestrial and oceanic carbon sinks to absorb this anthropogenic CO on time scales that are relevant to human society [ ], so the continued release of ancient CO into the modern atmosphere at current rates carries with it an important risk of inducing climate changes of unknown amplitude along with a host of ancillary changes that are difficult to predict with certainty. This has led to the search for alternatives to fossil fuels to meet a rising global energy demand, and one such option is the use of extant organic matter to produce energy. This resource contains carbon that was fixed from the modern atmosphere, which means it does not result in a net increase in atmospheric CO upon combustion.

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Decolorization of semisolid olive residues of “alperujo” during the solid state fermentation by Phanerochaete chrysosporium, Trametes versicolor, Pycnoporus cinnabarinus and Aspergillus niger

Cited by 31 publications

References 28 publications

Conversions of olive mill wastewater‐based media by Saccharomyces cerevisiae through sterile and non‐sterile bioprocesses

Conversions of olive mill wastewater‐based media by Saccharomyces cerevisiae through sterile and non‐sterile bioprocesses

Two-phase olive mill waste composting: enhancement of the composting rate and compost quality by grape stalks addition

Pretreatment of Lignocellulosic Biomass Using Microorganisms: Approaches, Advantages, and Limitations

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