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Coffee residues as substrates for aroma production by Ceratocystis fimbriata in solid state fermentation BJM
Medeiros,Adriane Bianchi Pedroni; Christen,Pierre; Roussos,Sevastianos; Gern,Juliana Carine; Soccol,Carlos Ricardo.
The ability of two different strains of Ceratocystis fimbriata for fruity aroma production by solid state fermentation (SSF) was tested on coffee pulp and coffee husk complemented with glucose as substrates. Experiments were carried out in 250 mL Erlenmeyer flasks and the experimental conditions were: 70% of initial moisture, 20% of glucose addition and pH 6.0. Aeration was made by passive diffusion through the gauze covering the flasks. Headspace analysis of the culture by gas chromatography (GC) showed that 12 compounds were produced with coffee husk. Maximum total volatiles (TV) concentration was reached after 72 h of culture with coffee husk as substrate (28 µmol.L-1.g-1). Ethyl acetate, ethanol and acetaldehyde were the major compounds produced,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Ceratocystis fimbriata; Coffee residues; Solid state fermentation; Aroma.
Ano: 2003 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822003000300013
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Commercial Biological Control Agents Targeted Against Plant-Parasitic Root-knot Nematodes BABT
Tranier,Marie-Stéphane; Pognant-Gros,Johan; Quiroz,Reynaldo De la Cruz; González,Cristóbal Noé Aguilar; Mateille,Thierry; Roussos,Sevastianos.
Root-knot nematodes are microscopic round worms, which cause severe agricultural losses. Their attacks affect the productivity by reducing the amount and the caliber of the fruits. Chemical control is widely used, but biological control appears to be a better solution, mainly using microorganisms to reduce the quantity of pests infecting crops. Biological control is developing gradually, and with time, more products are being marketed worldwide. They can be formulated with bacteria, viruses or with filamentous fungi, which can destroy and feed on phytoparasitic nematodes. To be used by the farmers, biopesticides must be legalized by the states, which has led to the establishment of a legal framework for their use, devised by various governmental...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Biopesticides; Meloidogynespp.; Filamentous Fungi; Homologation; Production; Formulation.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132014000600831
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Dietary utilisation of protein and energy from fresh and ensiled coffee pulp by the Nile tilapia, Oreochromis niloticus BABT
Moreau,Yann; Arredondo,Jose-Luis; Perraud-Gaime,Isabelle; Roussos,Sevastianos.
Dietary protein and energy utilisation of diets containing fresh and ensiled coffee pulp were studied on 3.2 ± 0.2 g Nile tilapia for 28 days. Diets formulation and feeding were designed on the basis of daily dietary protein and energy allowance. A control diet A (100 % protein and 100 % energy allowance) corresponding to 15 g CP kg-1 day-1 and 750 kJ kg-1 day-1, a low protein control diet B (80 % protein and 100 % energy allowance), two diets C and E (100 % protein and 100 % energy allowance) where 20 % of protein were supplied by coffee pulp, and two diets D and F with the same amount of coffee pulp than in C and E and supplementation in non-protein energy. Inclusion of coffee pulp in the diet strongly impaired growth and feed utilisation. Silage process...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Coffee pulp; Silage; Aquaculture; Cichlids; Feedstuff; Fish.
Ano: 2003 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132003000200014
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Microflora dynamics in earthworms casts in an artificial soil (biosynthesol) containing lactic acid oligomers BABT
Alauzet,Nathalie; Roussos,Sevastianos; Garreau,Henri; Vert,Michel.
Studies were performed to appreciate the presence of micro-organisms able to degrade OLA, in earthworms casts or in the surroundings. Worms were grown in biosynthesol, an artificial soil. The counting of bacteria and fungi in earthworms casts and in biosynthesol without earthworms suggested that earthworms ate some of the micro-organisms. The main filamentous fungi genera found were Aspergillus, Trichoderma, Fusarium and Penicillium. Previous results in the literature have shown that some species from the Aspergillus and Fusarium genera were able to degrade OLA and other aliphatic esters. It could be suggested that these two genera and some bacteria were responsible for the pre-degradation of OLA, and that earthworms might eat them.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Earthworm; Eisenia andrei; Biodegradation; Lactic acid polymers; Artificial soil; Natural microflora.
Ano: 2001 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132001000200001
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