keyword
MENU ▼
Read by QxMD icon Read
search

olive pomace

keyword
https://www.readbyqxmd.com/read/28609617/putative-markers-of-adulteration-of-higher-grade-olive-oil-with-less-expensive-pomace-olive-oil-by-gc-combined-with-chemometrics
#1
Hazem Jabeur, Malika Drira, Ahmed Rebai, Mohamed Bouaziz
The present work has been carried out to ascertain that extra-virgin olive oil (EVOO) is adulteration free. For this purpose, refined pomace olive oils (RPOO) are commonly used for extra-virgin olive oil adulteration and repassed olive oils (ROO) are used for lampante olive oil (LOO) fraudulent operation. Indeed, fatty acid ethyl esters could be used as a parameter for the detection of EVOO fraud with 2% of RPOO. The addition of more than 10% of RPOO to EVOO would be detected by the amount of erythrodiol, uvaol, waxes and aliphatic alcohols...
June 13, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28580634/new-by-products-rich-in-bioactive-substances-from-the-olive-oil-mill-processing
#2
Concepción Romero, Eduardo Medina, Mª Antonia Mateo, Manuel Brenes
BACKGROUND: Olive oil extraction generates a large amount of residue comprising mainly of the pomace and leaves when using the two-phase centrifugation system. The aim of this study was to assess the content of phenolic and triterpene compounds in the by-products produced in Spanish olive oil mills. RESULTS: The olive pomace had lower concentrations than 2 and 3 g kg(-1) of phenolic and triterpene substances, respectively. The leaves contained a high concentration in these substances although those collected from ground-picked olives had lost most of their phenolic compounds...
June 5, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28529051/ultrasound-assisted-biogas-production-from-co-digestion-of-wastewater-sludges-and-agricultural-wastes-comparison-with-microwave-pre-treatment
#3
B Aylin Alagöz, Orhan Yenigün, Ayşen Erdinçler
This study investigates the effect of ultrasonication and microwave sludge disintegration/pre-treatment techniques on the anaerobic co-digestion efficiency of wastewater sludges with olive and grape pomaces. The effects of both co-digestion and sludge pre-treatment techniques were evaluated in terms of the organic removal efficiency and the biogas production. The "co-digestion" of wastewater sludge with both types of pomaces was revealed to be a much more efficient way for the biogas production compared to the single (mono) sludge digestion...
May 11, 2017: Ultrasonics Sonochemistry
https://www.readbyqxmd.com/read/28526925/polyphenolic-extract-attenuates-fatty-acid-induced-steatosis-and-oxidative-stress-in-hepatic-and-endothelial-cells
#4
Laura Vergani, Giulia Vecchione, Francesca Baldini, Elena Grasselli, Adriana Voci, Piero Portincasa, Pier Francesco Ferrari, Bahar Aliakbarian, Alessandro A Casazza, Patrizia Perego
PURPOSE: Phenolic compounds (PC) of virgin olive oil exert several biochemical and pharmacological beneficial effects. Some dietary PC seem to prevent/improve obesity and metabolic-related disorders such as non-alcoholic fatty liver disease (NAFLD). We investigated the possible effects of PC extracted from olive pomace (PEOP) and of the main single molecules present in the extract (tyrosol, apigenin, oleuropein, p-coumaric and caffeic acid) in protecting hepatocytes and endothelial cells against triglyceride accumulation and oxidative stress...
May 19, 2017: European Journal of Nutrition
https://www.readbyqxmd.com/read/28488139/optimization-of-lipase-production-by-solid-state-fermentation-of-olive-pomace-from-flask-to-laboratory-scale-packed-bed-bioreactor
#5
Felisbela Oliveira, José Manuel Salgado, Luís Abrunhosa, Noelia Pérez-Rodríguez, José M Domínguez, Armando Venâncio, Isabel Belo
Lipases are versatile catalysts with many applications and can be produced by solid-state fermentation (SSF) using agro-industrial wastes. The aim of this work was to maximize the production of Aspergillus ibericus lipase under SSF of olive pomace (OP) and wheat bran (WB), evaluating the effect on lipase production of C/N ratio, lipids, phenols, content of sugars of substrates and nitrogen source addition. Moreover, the implementation of the SSF process in a packed-bed bioreactor and the improvement of lipase extraction conditions were assessed...
May 9, 2017: Bioprocess and Biosystems Engineering
https://www.readbyqxmd.com/read/28460948/enzymatic-biotransformation-of-polyphenolics-increases-antioxidant-activity-of-red-and-white-grape-pomace
#6
Isabela M Martins, Bruna S Roberto, Jeffrey B Blumberg, C-Y Oliver Chen, Gabriela A Macedo
Grape pomace (GP) is a polyphenolic-rich byproduct of wine production. As most polyphenolics are either bound to cellular matrices or present as free polymeric forms, treatment with hydrolytic enzymes may act to increase GP functionalities. The aim of this study was to examine the impact of tannase alone (T), pectinase plus cellulase (PC) or a mixture of them (TPC) on the hydrolysis of polyphenolics in red GP (RGP), white GP (WGP), and mixed GP (MGP) from Brazilian wine production, as well as antioxidant activity of the products...
November 2016: Food Research International
https://www.readbyqxmd.com/read/28456458/chemical-pretreatment-of-lignocellulosic-agroindustrial-waste-for-methane-production
#7
Frantseska-Maria Pellera, Evangelos Gidarakos
This study investigates the effect of different chemical pretreatments on the solubilization and the degradability of different solid agroindustrial waste, namely winery waste, cotton gin waste, olive pomace and juice industry waste. Eight different reagents were investigated, i.e. sodium hydroxide (NaOH), sodium bicarbonate (NaHCO3), sodium chloride (NaCl), citric acid (H3Cit), acetic acid (AcOH), hydrogen peroxide (H2O2), acetone (Me2CO) and ethanol (EtOH), under three condition sets resulting in treatments of varying intensity, depending on process duration, reagent dosage and temperature...
April 26, 2017: Waste Management
https://www.readbyqxmd.com/read/28336460/nanoincorporation-of-bioactive-compounds-from-red-grape-pomaces-in-vitro-and-ex-vivo-evaluation-of-antioxidant-activity
#8
Maria Manconi, Francesca Marongiu, Maria Letizia Manca, Carla Caddeo, Giorgia Sarais, Claudia Cencetti, Laura Pucci, Vincenzo Longo, Gianluigi Bacchetta, Anna Maria Fadda
In this study, the active components of grape pomaces were first extracted by maceration in ethanol and propylene glycol, then in extra virgin olive oil. The main components of the hydrophilic extractive solutions were flavonoids, while monounsaturated fatty acids were the most abundant constituents of the extractive oil, with high levels of oleic acid, which were identified by HPLC/DAD and GC/MS, respectively. The hydrophilic extractive solutions and the lipophilic extractive oil were used to prepare phospholipid vesicles, avoiding the energetically and economically expensive steps required to obtain solid matrixes or pure compounds...
March 20, 2017: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/28335517/state-of-the-art-on-functional-virgin-olive-oils-enriched-with-bioactive-compounds-and-their-properties
#9
REVIEW
Patricia Reboredo-Rodríguez, María Figueiredo-González, Carmen González-Barreiro, Jesús Simal-Gándara, María Desamparados Salvador, Beatriz Cancho-Grande, Giuseppe Fregapane
Virgin olive oil, the main fat of the Mediterranean diet, is per se considered as a functional food-as stated by the European Food Safety Authority (EFSA)-due to its content in healthy compounds. The daily intake of endogenous bioactive phenolics from virgin olive oil is variable due to the influence of multiple agronomic and technological factors. Thus, a good strategy to ensure an optimal intake of polyphenols through habitual diet would be to produce enriched virgin olive oil with well-known bioactive polyphenols...
March 20, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28259073/food-by-products-as-potential-antioxidant-and-antimicrobial-additives-in-chill-stored-raw-lamb-patties
#10
A I Andrés, M J Petrón, J D Adámez, M López, M L Timón
The aim of this work was to study the in vitro antioxidant potential of aqueous extracts obtained from tomato (TOM), red grape (GRA), olive (OLI) and pomegranate (POM) by-products as well as to evaluate the effect of their addition into lamb meat patties (1000mg/kg) in order to improve shelf life. A negative (CON) and a positive control (sodium ascorbate, ASC) were also included in the experiment. Results for radical scavenging activity, metal chelating activity and reducing power indicated that GRA and OLI extracts could inhibit oxidation more efficiently than POM and TOM extracts (P<0...
July 2017: Meat Science
https://www.readbyqxmd.com/read/28231700/effect-on-quanti-quality-milk-and-mozzarella-cheese-characteristics-with-further-increasing-the-level-of-dried-stoned-olive-pomace-in-diet-for-lactating-buffalo
#11
Agnese Taticchi, Settimio Bartocci, Maurizio Servili, Sabrina Di Giovanni, Mariano Pauselli, Evangelia Mourvaki, David Meo Zilio, Stefano Terramoccia
Objective: Following a previous report, an experiment was conducted to determine the effect of increasing level of DSOP (dried stoned olives pomaces) in the diet of lactating buffaloes on milk and mozzarella cheese yield and characteristics. Methods: Sixteen pluriparous buffaloes distributed into two groups were fed an isoenergetic (0.9 Milk FU/kg) and isoprotein (149 g/kg DM of crude protein) diet, with or without DSOP. Each animal received 17 kg DM/d. Samples of forages and concentrates were weekly collected and used for duplicate chemical analyses...
February 23, 2017: Asian-Australasian Journal of Animal Sciences
https://www.readbyqxmd.com/read/28208806/orange-pomace-improves-postprandial-glycemic-responses-an-acute-randomized-placebo-controlled-double-blind-crossover-trial-in-overweight-men
#12
C-Y Oliver Chen, Helen Rasmussen, Alison Kamil, Peng Du, Jeffrey B Blumberg
Orange pomace (OP), a fiber-rich byproduct of juice production, has the potential for being formulated into a variety of food products. We hypothesized that OP would diminish postprandial glycemic responses to a high carbohydrate/fat breakfast and lunch. We conducted an acute, randomized, placebo-controlled, double blind, crossover trial with 34 overweight men who consumed either a 255 g placebo (PLA), a low (35% OP (LOP)), or a high (77% (HOP)) dose OP beverage with breakfast. Blood was collected at 0, 10, 20, 30, and 45 min and at 1, 1...
February 13, 2017: Nutrients
https://www.readbyqxmd.com/read/28167238/serum-from-postmenopausal-women-treated-with-a-by-product-of-olive-oil-extraction-process-stimulates-osteoblastogenesis-and-inhibits-adipogenesis-in-human-mesenchymal-stem-cells-msc
#13
Antonio Casado-Díaz, Isaac Túnez-Fiñana, José María Mata-Granados, María Victoria Ruiz-Méndez, Gabriel Dorado, María Concepción Romero-Sánchez, Cristina Navarro-Valverde, José Manuel Quesada-Gómez
Aging may enhance both oxidative stress and bone-marrow mesenchymal stem-cell (MSC) differentiation into adipocytes. That reduces osteoblastogenesis, thus favoring bone-mass loss and fracture, representing an important worldwide health-issue, mainly in countries with aging populations. Intake of antioxidant products may help to retain bone-mass density. Interestingly, a novel olive-pomace physical treatment to generate olive oil also yields by-products rich in functional antioxidants. Thus, diet of postmenopausal women was supplemented for two months with one of such by-products (distillate 6; D6), being rich in squalene...
April 2017: Experimental Gerontology
https://www.readbyqxmd.com/read/28068488/side-streams-of-plant-food-processing-as-a-source-of-valuable-compounds-selected-examples
#14
Andreas Schieber
Industrial processing of plant-derived raw materials generates enormous amounts of by-products. On one hand, these by-products constitute a serious disposal issue because they often emerge seasonally and are prone to microbial decay. On the other hand, they are an abundant source of valuable compounds, in particular secondary plant metabolites and cell wall materials, which may be recovered and used to functionalize foods and replace synthetic additives with ingredients of natural origin. This review covers 150 references and presents select studies performed between 2001 and 2016 on the recovery, characterization, and application of valuable constituents from grape pomace, apple pomace, potato peels, tomato pomace, carrot pomace, onion peels, by-products of citrus, mango, banana, and pineapple processing, side streams of olive oil production, and cereal by-products...
February 28, 2017: Annual Review of Food Science and Technology
https://www.readbyqxmd.com/read/27684314/co-composting-of-two-phase-olive-mill-pomace-and-poultry-manure-with-tomato-harvest-stalks
#15
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...
April 2017: Environmental Technology
https://www.readbyqxmd.com/read/27627637/in-vitro-inhibitory-effects-of-plant-derived-by-products-against-cryptosporidium-parvum
#16
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
#17
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...
December 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
#18
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
#19
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
#20
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
keyword
keyword
68727
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"