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https://www.readbyqxmd.com/read/27684314/co-composting-of-two-phase-olive-mill-pomace-and-poultry-manure-with-tomato-harvest-stalks
#1
Kemal Sülük, İsmail Tosun, Kamil Ekinci
In this study, two-phase olive-mill pomace with poultry manure and chopped tomato harvest stalks were composted at different initial carbon/nitrogen (C/N) ratios with fixed free air space of 35%. Composting experiment was carried out in the 15 aerobic reactors made of stainless steel and was monitored for 28 days. During the composting process, temperature, moisture content, organic matter (OM), pH, electrical conductivity, oxygen and carbon dioxide concentrations, total carbon, total nitrogen, ammonium nitrogen ([Formula: see text]), nitrate nitrogen ([Formula: see text]), and total phosphorus were monitored...
August 16, 2016: Environmental Technology
https://www.readbyqxmd.com/read/27627637/in-vitro-inhibitory-effects-of-plant-derived-by-products-against-cryptosporidium-parvum
#2
Klaus Teichmann, Maxime Kuliberda, Gerd Schatzmayr, Thomas Pacher, Karin Zitterl-Eglseer, Anja Joachim, Franz Hadacek
Disposal of organic plant wastes and by-products from the food or pharmaceutical industries usually involves high costs. In the present study, 42 samples derived from such by-products were screened in vitro against Cryptosporidium parvum, a protozoan parasite that may contaminate drinking water and cause diarrhoea. The novel bioassay was previously established in the microtitre plate format. Human ileocaecal adenocarcinoma (HCT-8) cell cultures were seeded with C. parvum oocysts and parasite development was monitored by an indirect fluorescent antibody technique (IFAT) and microscopic assessment for clusters of secondary infection (CSI)...
2016: Parasite: Journal de la Société Française de Parasitologie
https://www.readbyqxmd.com/read/27523710/effect-of-alkaline-pretreatment-on-anaerobic-digestion-of-olive-mill-solid-waste
#3
Frantseska-Maria Pellera, Sofia Santori, Raffaella Pomi, Alessandra Polettini, Evangelos Gidarakos
The present study evaluates the influence of alkaline (NaOH) pretreatment on anaerobic digestion of olive pomace. Batch hydrolysis experiments with different NaOH dosages, process durations and temperatures were conducted, in which the variation of olive pomace solubilization in the liquid phase was investigated. The effect of pretreatment on anaerobic digestion was studied through biochemical methane potential assays. The results demonstrated the effectiveness of the NaOH pretreatment in improving olive pomace solubilization as well as its biodegradability...
August 11, 2016: Waste Management
https://www.readbyqxmd.com/read/27497587/consecutive-anaerobic-aerobic-treatment-of-the-organic-fraction-of-municipal-solid-waste-and-lignocellulosic-materials-in-laboratory-scale-landfill-bioreactors
#4
Frantseska-Maria Pellera, Emmanouil Pasparakis, Evangelos Gidarakos
The scope of this study is to evaluate the use of laboratory-scale landfill-bioreactors, operated consecutively under anaerobic and aerobic conditions, for the combined treatment of the organic fraction of municipal solid waste (OFMSW) with two different co-substrates of lignocellulosic nature, namely green waste (GW) and dried olive pomace (DOP). According to the results such a system would represent a promising option for eventual larger scale applications. Similar variation patterns among bioreactors indicate a relatively defined sequence of processes...
October 2016: Waste Management
https://www.readbyqxmd.com/read/27429359/the-impact-of-biochars-prepared-from-agricultural-residues-on-phosphorus-release-and-availability-in-two-fertile-soils
#5
Ioanna I Manolikaki, Argirios Mangolis, Evan Diamadopoulos
Biochars have a high variability in chemical composition, which is influenced by pyrolysis conditions and type of biomass. Essential macronutrient P retained in biochar could be released and made available to plants, enhancing plant growth. This study was conducted in order to evaluate whether biochar, produced from agricultural residues, could release P in water, as well as study its potential effect on plant growth and P uptake. Biochar samples were prepared from rice husks, grape pomace and olive tree prunings by pyrolysis at 300 °C and 500 °C...
October 1, 2016: Journal of Environmental Management
https://www.readbyqxmd.com/read/27405516/long-term-effects-of-soil-management-on-ecosystem-services-and-soil-loss-estimation-in-olive-grove-top-soils
#6
Luis Parras-Alcántara, Beatriz Lozano-García, Saskia Keesstra, Artemi Cerdà, Eric C Brevik
Soil management has important effects on soil properties, runoff, soil losses and soil quality. Traditional olive grove (OG) management is based on reduced tree density, canopy size shaped by pruning and weed control by ploughing. In addition, over the last several decades, herbicide use has been introduced into conventional OG management. These management strategies cause the soil surface to be almost bare and subsequently high erosion rates take place. To avoid these high erosion rates several soil management strategies can be applied...
November 15, 2016: Science of the Total Environment
https://www.readbyqxmd.com/read/27386985/innovative-method-for-recovery-and-valorization-of-hydroxytyrosol-from-olive-mill-wastewaters
#7
A Bonetti, S Venturini, A Ena, C Faraloni
The nutritional properties of olive oil can be attributed to its oleic acid and phenolic compounds content, acting as natural oxidants to prevent human diseases. In particular, hydroxytyrosol has an anti-inflammatory action similar to omega 3 fatty acids from fish oil. The olive oil production was conducted by two extraction procedures: first, a two-phase extraction giving extra-virgin olive oil and humid pomace, second, a three-phase working process of humid pomace, obtaining another minimum quantity of extra-virgin olive oil, 'dry' pomace devoid of polyphenols, and mill wastewaters rich in anti-oxidant compounds...
2016: Water Science and Technology: a Journal of the International Association on Water Pollution Research
https://www.readbyqxmd.com/read/27341463/agroindustrial-residues-and-energy-crops-for-the-production-of-hydrogen-and-poly-%C3%AE-hydroxybutyrate-via-photofermentation
#8
Elisa Corneli, Alessandra Adessi, Federico Dragoni, Giorgio Ragaglini, Enrico Bonari, Roberto De Philippis
The present study was aimed at assessing the biotransformation of dark fermented agroindustrial residues and energy crops for the production of hydrogen and poly-β-hydroxybutyrate (PHB), in lab-scale photofermentation. The investigation on novel substrates for photofermentation is needed in order to enlarge the range of sustainable feedstocks. Dark fermentation effluents of ensiled maize, ensiled giant reed, ensiled olive pomace, and wheat bran were inoculated with Rhodopseudomonas palustris CGA676, a mutant strain suitable for hydrogen production in ammonium-rich media...
September 2016: Bioresource Technology
https://www.readbyqxmd.com/read/27209456/ultrasounds-pretreatment-of-olive-pomace-to-improve-xylanase-and-cellulase-production-by-solid-state-fermentation
#9
Paulina Leite, José Manuel Salgado, Armando Venâncio, José Manuel Domínguez, Isabel Belo
Olive mills generate a large amount of waste that can be revaluated. This work aim to improve the production lignocellulolytic enzymes by solid-state fermentation using ultrasounds pretreated olive mill wastes. The composition of olive mill wastes (crude and exhausted olive pomace) was compared and several physicochemical characteristics were significantly different. The use of both wastes in SSF was evaluated and a screening of fungi for xylanase and cellulase production was carried out. After screening, the use of exhausted olive pomace and Aspergillus niger led to the highest enzyme activities, so that they were used in the study of ultrasounds pre-treatment...
August 2016: Bioresource Technology
https://www.readbyqxmd.com/read/27136614/thermal-behaviour-and-kinetic-study-of-the-olive-oil-production-chain-residues-and-their-mixtures-during-co-combustion
#10
C Buratti, S Mousavi, M Barbanera, E Lascaro, F Cotana, M Bufacchi
The kinetic behaviour of olive tree pruning (PR), two- (2PH) and three-phase (3PH) olive pomace and their blends was investigated under combustion condition using thermogravimetric analysis. PR was blended with 2PH and 3PH at different ratios (25:75, 50:50 and 75:25) and tested in the temperature range from ambient to 1000°C in order to evaluate the co-combustion behaviour. Results showed that the thermal degradation of all samples can be divided into three regions (drying, devolatilisation, char oxidation) with different combustion properties, depending on the percentage of PR...
August 2016: Bioresource Technology
https://www.readbyqxmd.com/read/27116959/enumeration-and-rapid-identification-of-yeasts-during-extraction-processes-of-extra-virgin-olive-oil-in-tuscany
#11
Eleonora Mari, Simona Guerrini, Lisa Granchi, Massimo Vincenzini
The aim of this study was to evaluate the occurrence of yeast populations during different olive oil extraction processes, carried out in three consecutive years in Tuscany (Italy), by analysing crushed pastes, kneaded pastes, oil from decanter and pomaces. The results showed yeast concentrations ranging between 10(3) and 10(5) CFU/g or per mL. Seventeen dominant yeast species were identified by random amplified polymorphic DNA with primer M13 and their identification was confirmed by restriction fragments length polymorphism of ribosomal internal transcribed spacer and sequencing rRNA genes...
June 2016: World Journal of Microbiology & Biotechnology
https://www.readbyqxmd.com/read/27038259/energy-conversion-of-biomass-crops-and-agroindustrial-residues-by-combined-biohydrogen-biomethane-system-and-anaerobic-digestion
#12
Elisa Corneli, Federico Dragoni, Alessandra Adessi, Roberto De Philippis, Enrico Bonari, Giorgio Ragaglini
Aim of this study was to evaluate the suitability of ensiled giant reed, ensiled maize, ensiled olive pomace, wheat bran for combined systems (CS: dark fermentation+anaerobic digestion (AD)) producing hydrogen-rich biogas (biohythane), tested in batch under basic operational conditions (mesophilic temperatures, no pH control). Substrates were also analyzed under a single stage AD batch test, in order to investigate the effects of DF on estimated energy recovery (ER) in combined systems. In CS, maize and wheat bran exhibited the highest hydrogen potential (13...
July 2016: Bioresource Technology
https://www.readbyqxmd.com/read/26904279/absorption-metabolism-and-excretion-by-freely-moving-rats-of-3-4-dhpea-eda-and-related-polyphenols-from-olive-fruits-olea-europaea
#13
Shunsuke Kano, Haruna Komada, Lina Yonekura, Akihiko Sato, Hisashi Nishiwaki, Hirotoshi Tamura
Absorption, metabolism, and excretion of 3,4-DHPEA-EDA, oleuropein, and hydroxytyrosol isolated from olive fruits were newly evaluated after oral and intravenous administration in freely moving rats cannulated in the portal vein, jugular vein, and bile duct. Orally administered 3,4-DHPEA-EDA, an important bioactive compound in olive pomace, was readily absorbed and metabolized to hydroxytyrosol, homovanillic acid, and homovanillyl alcohol, as shown by dose-normalized 4 h area under the curve (AUC0→4 h/Dose) values of 27...
2016: Journal of Nutrition and Metabolism
https://www.readbyqxmd.com/read/26894571/valorization-of-olive-pomace-oil-with-enzymatic-synthesis-of-2-monoacylglycerol
#14
Hasene Keskin, Derya Koçak Yanık, Hatice Neval Mucuk, Fahrettin Göğüş, Sibel Fadıloğlu
2-Monoacylglycerols (2-MAG) with a high content of oleic acid at sn-2 position was synthesized by enzymatic ethanolysis of refined olive pomace oil, which is a byproduct of olive oil processing. Six lipases from different microbial sources were used in the synthesis of 2-MAG. Immobilized lipase from Candida antarctica gave the highest product yield among the selected lipases. Response surface methodology was applied to optimize reaction conditions; time (4 to 10 h), temperature (45 to 60 °C), enzyme load (10 to 18 wt%), and ethanol:oil molar ratio (30:1 to 60:1)...
April 2016: Journal of Food Science
https://www.readbyqxmd.com/read/26783228/tnf-%C3%AE-and-il-10-modulation-induced-by-polyphenols-extracted-by-olive-pomace-in-a-mouse-model-of-paw-inflammation
#15
Valentina Carito, Stefania Ciafrè, Luigi Tarani, Mauro Ceccanti, Fausta Natella, Angela Iannitelli, Paola Tirassa, George N Chaldakov, Marco Ceccanti, Chiara Boccardo, Marco Fiore
BACKGROUND: Polyphenols from olive are known to possess antioxidant and anti-inflammatory properties. AIM: The aim of this study was to study whether or not 10 consecutive days i.p. administration of a blend of olive (Olea europaea L.) polyphenols (10 mg/kg) containing mostly hydroxytyrosol could have an effect on cytokines playing important roles in inflammatory processes as TNF-α and IL-10. MATERIALS AND METHODS: Inflammation was induced in the mouse paw by 2 carrageenan injections (50 µl vol, 5 mg/kg each)...
2015: Annali Dell'Istituto Superiore di Sanità
https://www.readbyqxmd.com/read/26679220/saturated-hydrocarbon-content-in-olive-fruits-and-crude-olive-pomace-oils
#16
Raquel B Gómez-Coca, María Del Carmen Pérez-Camino, Wenceslao Moreda
Olive fruits contain an n-alkane series of saturated hydrocarbons mainly in the pulp. Lower amounts of a complex mixture of paraffins, unresolved by gas chromatography (UCM--unresolved complex mixture), have been found in cuticle, stone (woody shell and seed), olive leaves, and talc used as an aid to olive oil extraction. The amounts of both kinds of hydrocarbons are related to the olive cultivar and are transferred to oils in a proportion depending on the oil-obtaining process (centrifugation or solvent extraction)...
2016: Food Additives & Contaminants. Part A, Chemistry, Analysis, Control, Exposure & Risk Assessment
https://www.readbyqxmd.com/read/26653359/use-of-bottom-ash-from-olive-pomace-combustion-in-the-production-of-eco-friendly-fired-clay-bricks
#17
D Eliche-Quesada, J Leite-Costa
Olive pomace bottom ash was used to replace different amounts (10-50wt%) of clay in brick manufacturing. The aim of this study is both studying bricks properties and showing a new way of olive pomace bottom ash recycling. Properties of waste bricks were compared to conventional products following standard procedures in order to determine the maximum waste percentage. The amount of olive pomace bottom ash is limited to 20wt%, obtaining bricks with superior engineering properties when 10wt% of waste is added...
February 2016: Waste Management
https://www.readbyqxmd.com/read/26601619/olive-pomace-valorization-by-aspergillus-species-lipase-production-using-solid-state-fermentation
#18
Felisbela Oliveira, Cláudia Moreira, José Manuel Salgado, Luís Abrunhosa, Armando Venâncio, Isabel Belo
BACKGROUND: Pollution by olive mill wastes is an important problem in the Mediterranean area and novel solutions for their proper management and valorization are needed. The aim of this work was to optimize a solid-state fermentation (SSF) process to produce lipase using olive pomace (OP) as the main source of nutrients by several Aspergillus spp. Optimized variables in two different designs were: ratio between olive pomace and wheat bran (OP:WB), NaNO3 , Czapek nutrients, fermentation time, moisture content (MC) and temperature...
August 2016: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/26345112/preparation-and-characterization-of-azadirachtin-alginate-biosorbent-based-formulations-water-release-kinetics-and-photodegradation-study
#19
Francisco Flores-Céspedes, Gerardo P Martínez-Domínguez, Matilde Villafranca-Sánchez, Manuel Fernández-Pérez
The botanical insecticide azadirachtin was incorporated in alginate-based granules to obtain controlled release formulations (CRFs). The basic formulation [sodium alginate (1.47%) - azadirachtin (0.28%) - water] was modified by the addition of biosorbents, obtaining homogeneous hybrid hydrogels with high azadirachtin entrapment efficiency. The effect on azadirachtin release rate caused by the incorporation of biosorbents such as lignin, humic acid, and olive pomace in alginate formulation was studied by immersion of the granules in water under static conditions...
September 30, 2015: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/26320815/enhancement-of-anaerobic-digestion-efficiency-of-wastewater-sludge-and-olive-waste-synergistic-effect-of-co-digestion-and-ultrasonic-microwave-sludge-pre-treatment
#20
B Aylin Alagöz, Orhan Yenigün, Ayşen Erdinçler
This study investigates the effect of ultrasonic and microwave pre-treatment on biogas production from the anaerobic co-digestion of olive pomace and wastewater sludges. It was found that co-digestion of wastewater sludge with olive pomace yielded around 0.21 L CH4/g VS added, whereas the maximum methane yields from the mono-digestion of olive pomace and un-pretreated wastewater sludges were 0.18 and 0.16L CH4/g VS added. In the same way, compared to mono-digestion of these substrates, co-digestion increased methane production by 17-31%...
December 2015: Waste Management
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