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UniversidaddeCádiz
Instituto de Investigación Vitivinícola y Agroalimentaria IVAGRO

UniversidaddeCádiz

Instituto de Investigación Vitivinícola y Agroalimentaria IVAGRO
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Publications 2022 (47)

 

Analysis of compounds with oenological interest in somatic variants of grapevines

Analysis of compounds with oenological interest in somatic variants of grapevines

Posted May 18, 2022

DOI 10.3390/horticulturae8010022 KEYWORDS Vitis vinifera; grapevine; somatic variants; Graciano; Tintilla de Rota; anthocyanin ABSTRACT Grapevine varieties can be identified genetically by microsatellite markers. However, these molecular markers are not available to discriminate between somatic mutations that give rise to clones. Therefore, the study of compounds with oenological interest could be used to identify variability in grapevine somatic variants. In this […]

Design and Test of a High-Performance Wireless Sensor Network for Irradiance Monitoring

Design and Test of a High-Performance Wireless Sensor Network for Irradiance Monitoring

Posted May 18, 2022

DOI 10.3390/s22082928 KEYWORDS Irradiance WSN; high-performance WSN; solar irradiance; low-cost WSN; online wireless sensor network; irradiance network; nowcasting ABSTRACT Cloud-induced photovoltaic variability can affect grid stability and power quality, especially in electricity systems with high penetration levels. The availability of irradiance field forecasts in the scale of seconds and meters is fundamental for an adequate control of photovoltaic systems in order […]

Detection of Adulterations in Fruit Juices Using Machine Learning Methods over FT-IR Spectroscopic Data

Detection of Adulterations in Fruit Juices Using Machine Learning Methods over FT-IR Spectroscopic Data

Posted May 18, 2022

DOI 10.3390/agronomy12030683 KEYWORDS FT-IR; fruit juices; food control; machine learning; spectroscopy; regression; authentication; classification ABSTRACT Fruit juices are one of the most adulterated beverages, usually because of the addition of water, sugars, or less expensive fruit juices. This study presents a method based on Fourier transform infrared spectroscopy (FT-IR), in combination with machine learning methods, for the correct identification and quantification of […]

Development and validation of a sampling and analysis method to determine biogenic sulfur in a desulfurization bioreactor by gas chromatography coupled with a pulsed flame photometric detector (GC-PFPD)

Development and validation of a sampling and analysis method to determine biogenic sulfur in a desulfurization bioreactor by gas chromatography coupled with a pulsed flame photometric detector (GC-PFPD)

Posted May 18, 2022

DOI 10.1016/j.jhazmat.2021.127667 KEYWORDS Biogenic sulfur; GC-PFPD; toluene; filtration; response surface methodology ABSTRACT Suspended biomass bioreactors can be operated to remove H2S from biogas under anoxic conditions and produce elemental sulfur, the commercial value of which has been demonstrated. In the present paper, a novel methodology comprising the optimization of a determination method performed in a gas chromatograph equipped with a pulsed […]

Development of Porous Polyvinyl Acetate/Polypyrrole/Gallic Acid Scaffolds Using Supercritical CO2 as Tissue Regenerative Agents

Development of Porous Polyvinyl Acetate/Polypyrrole/Gallic Acid Scaffolds Using Supercritical CO2 as Tissue Regenerative Agents

Posted May 18, 2022

DOI 10.3390/polym14040672 KEYWORDS Polypyrrole; polyvinyl acetate; scaffolds; supercritical CO2 foaming; drug delivery ABSTRACT Scaffolds are advanced devices employed in tissue engineering, as they are intended to mimic the characteristics of extracellular matrices. In this respect, conjugated materials are gaining relevance in the manufacturing of the foams used for therapeutic scaffolds, since they can provide certain properties that are missing in […]

Documentation and analysis of a Roman anchor stock and its iconographic and epigraphic sealed elements

Documentation and analysis of a Roman anchor stock and its iconographic and epigraphic sealed elements

Posted May 18, 2022

DOI 10.4995/var.2022.15349 KEYWORDS 3D recording, SfM photogrammetry, geographic information system (GIS), virtual reflectance transformation imaging (RTI), hillshade, lead stock ABSTRACT This paper aims to present the documentation and analysis methodology carried out on a lead trap from the ancient period, which belongs to the collection of traps in the Museum of Cádiz (Andalusia, Spain). The […]

Extraction of Antioxidant Compounds from Onion Bulb (Allium cepa L.) Using Individual and Simultaneous Microwave-Assisted Extraction Methods

Extraction of Antioxidant Compounds from Onion Bulb (Allium cepa L.) Using Individual and Simultaneous Microwave-Assisted Extraction Methods

Posted May 18, 2022

DOI 10.3390/antiox11050846 KEYWORDS Allium cepa L.; anthocyanins; box-Behnken; HPLC; microwave-assisted extraction; onion; phenolic compounds ABSTRACT Despite the excellent beneficial properties that anthocyanins and total phenolic compounds give to the red onion bulbs, few articles have investigated modern extraction techniques or experimental designs in this field. For this reason, the present study proposes the development and optimization of alternative methods for the […]

Improvement of the anaerobic digestion of sewage sludge by co-digestion with wine vinasse and poultry manure: Effect of different hydraulic retention times

Improvement of the anaerobic digestion of sewage sludge by co-digestion with wine vinasse and poultry manure: Effect of different hydraulic retention times

Posted May 18, 2022

DOI 10.1016/j.fuel.2022.124104 KEYWORDS Sewage sludge; wine vinasse; poultry manure; anaerobic tridigestion; hydraulic retention time; biomethane ABSTRACT This study arose in response to the management of different organic wastes generated locally, which cause environmental damage. These wastes could be used to obtain biogas and class A biosolids through anaerobic digestion. For this purpose, the mesophilic anaerobic […]

Independent and Combined Association of Lifestyle Behaviours and Physical Fitness with Body Weight Status in Schoolchildren

Independent and Combined Association of Lifestyle Behaviours and Physical Fitness with Body Weight Status in Schoolchildren

Posted May 18, 2022

DOI 10.3390/nu14061208 KEYWORDS Childhood obesity; healthy lifestyle; physical fitness; body mass index; physical activity; sedentary behaviour; diet; sleep; screen time ABSTRACT (1) Background: Lifestyle behaviours and physical fitness play a critical role in the development of childhood obesity. It has been demonstrated in this study that self-reported physical fitness is representative of a healthy lifestyle and thus is associated with a lower incidence […]

Influence of Different Bacteria Inocula and Temperature Levels on the Chemical Composition and Antioxidant Activity of Prickly Pear Vinegar Produced by Surface Culture

Influence of Different Bacteria Inocula and Temperature Levels on the Chemical Composition and Antioxidant Activity of Prickly Pear Vinegar Produced by Surface Culture

Posted May 18, 2022

DOI 10.3390/foods11030303 KEYWORDS Prickly pear; vinegar; fermentation; thermotolerant bacteria; volatile compounds; polyphenolic compounds ABSTRACT This work intends to determine the effect on the aroma profile, phenolic content and antioxidant activity of prickly pear vinegars produced by the surface culture at two different fermentation temperatures and using different acetic acid bacteria (AAB) inocula. Prickly pear wine was fermented at two temperature […]

Influence of different fermentation conditions on the analytical and sensory properties of craft beers: Hopping, fermentation temperature and yeast strain

Influence of different fermentation conditions on the analytical and sensory properties of craft beers: Hopping, fermentation temperature and yeast strain

Posted May 18, 2022

DOI 10.1016/j.jfca.2021.104278 KEYWORDS Craft beers; dry hopping; volatile compounds; phenolic compounds; sensory analysis   ABSTRACT The influence of the hopping method (boiling stage hopping or dry hopping), the fermentation temperature (12 and 18 °C), and the yeast strain (five different yeasts) on the physical-chemical characteristics (bitterness, color, alcohol content), the phenolic content, the volatile compounds, as […]

Mass Transfer and Optical Properties of Active PET/PP Food-Grade Films Impregnated with Olive Leaf Extract

Mass Transfer and Optical Properties of Active PET/PP Food-Grade Films Impregnated with Olive Leaf Extract

Posted May 18, 2022

DOI 10.3390/polym14010084 KEYWORDS Kinetic migration; CIELAB parameters; supercritical impregnation; olive leaf extract; UV barrier; impregnation mode ABSTRACT A supercritical solvent impregnation (SSI) technique was employed to incorporate, by batch- and semicontinuous-modes, bioactive olive leaf extract (OLE) into a food-grade multilayer polyethylene terephthalate/polypropylene (PET/PP) film for active food packaging applications. The inclusion of OLE in the polymer surfaces significantly modified the […]

Microplastics in a tropical Andean Glacier: A transportation process across the Amazon basin?

Microplastics in a tropical Andean Glacier: A transportation process across the Amazon basin?

Posted May 18, 2022

DOI 10.1016/j.scitotenv.2021.150334 KEYWORDS Surface snow deposition; atmospheric transport; contaminants; antisana; Ecuador; isotopes; wind direction ABSTRACT Microplastic (MPs) contamination is ubiquitous in most terrestrial and aquatic ecosystems. Recently MPs have been reported at high altitudes which indicates that air masses can transport and deposit MPs in the surface snow of high mountain ecosystems, however, whether MPs typification […]

Microwave-assisted extraction of non-coloured phenolic compounds from grape cultivars

Microwave-assisted extraction of non-coloured phenolic compounds from grape cultivars

Posted May 18, 2022

DOI 10.1007/s00217-022-04013-y KEYWORDS Microwave; extraction; phenolic compounds; grapes ABSTRACT A new microwave-assisted extraction (MAE) method was developed for the fast analysis of non-coloured phenolic content in grapes. The stability of 25 phenolic compounds under the microwave extraction conditions was assessed to define the optimal temperature. Several variables were evaluated to study their influence on the extraction process, including […]

Modelling cabotage. Coastal navigation in the western Mediterranean Sea during the Early Iron Age

Modelling cabotage. Coastal navigation in the western Mediterranean Sea during the Early Iron Age

Posted May 18, 2022

DOI 10.1016/j.jasrep.2021.103270 KEYWORDS Social network analysis; maritime archaeology; GIS; maritime connectivity;  maritime mobility ABSTRACT The study of population mobility and its impact on societies throughout history has undergone significant changes as a field in recent years. When we refer to maritime mobility applied to Early Iron Age (EIA) societies in the Mediterranean context, the predominance of coastal […]

N -Alkylation of organonitrogen compounds catalyzed by methylene-linked bis-NHC half-sandwich ruthenium complexes

N -Alkylation of organonitrogen compounds catalyzed by methylene-linked bis-NHC half-sandwich ruthenium complexes

Posted May 18, 2022

DOI 10.1039/D1OB02214H KEYWORDS Acetonitrile complex; N-Alkylation ABSTRACT An efficient ruthenium-catalyzed N-alkylation of amines, amides and sulfonamides has been developed employing novel pentamethylcyclopentadienylruthenium(II) complexes bearing the methylene linked bis(NHC) ligand bis(3-methylimidazol-2-ylidene)methane. The acetonitrile complex 2 has proven particularly effective with a broad range of substrates with low catalyst loading (0.1–2.5 mol%) and high functional group tolerance under mild conditions. A […]

Optimization of an Ultrasound-Assisted Extraction Method Applied to the Extraction of Flavonoids from Moringa Leaves (Moringa oleífera Lam.)

Optimization of an Ultrasound-Assisted Extraction Method Applied to the Extraction of Flavonoids from Moringa Leaves (Moringa oleífera Lam.)

Posted May 18, 2022

DOI 10.3390/agronomy12020261 KEYWORDS Box–Behnken design; flavonoids; Moringa oleifera; response surface methodology; ultrasound-assisted extraction; UHPLC-QToF-MS ABSTRACT Interest in phenolic compounds has recently increased due to their potential as antioxidant agents. Moringa leaves (Moringa oleifera) have a high content of phenolic compounds, which presents them as a promising source for the extraction of these compounds. However, it is necessary to use analytical […]

Optimization of nickel and cobalt biosorption by native Serratia marcescens strains isolated from serpentine deposits using response surface methodology

Optimization of nickel and cobalt biosorption by native Serratia marcescens strains isolated from serpentine deposits using response surface methodology

Posted May 18, 2022

DOI 10.1007/s10661-022-09816-w KEYWORDS Biosorption; nickel; cobalt; serratia marcescens; response surface methodology; serpentine ABSTRACT The treatment of metal-polluted wastes is a challenging issue of environmental concern. Metals can be removed using microbial biomass, and this is an interesting approach towards the design of eco-friendly technologies for liquid waste treatment. The study reported here aimed to optimize nickel […]

Pro-Angiogenic Effects of Natural Antioxidants Extracted from Mango Leaf, Olive Leaf and Red Grape Pomace over Endothelial Colony-Forming Cells

Pro-Angiogenic Effects of Natural Antioxidants Extracted from Mango Leaf, Olive Leaf and Red Grape Pomace over Endothelial Colony-Forming Cells

Posted May 18, 2022

DOI 10.3390/antiox11050851 KEYWORDS ECFCs; mango leaves; olive leaves; grape pomace; angiogenesis; proliferation; inflammation; cell therapy; polyphenols; antioxidants ABSTRACT Cardiovascular diseases remain the leading cause of death worldwide, mainly triggered by the formation of atherosclerotic plaques that reduce blood flow. Angiogenic cell therapy based on endothelial colony forming cells (ECFCs) constitutes a promising alternative to promote vascular revascularization; however, under the oxidative environment that prevails […]

Site Characterization Index for Continuous Power Quality Monitoring Based on Higher-order Statistics

Site Characterization Index for Continuous Power Quality Monitoring Based on Higher-order Statistics

Posted May 18, 2022

DOI 10.35833/MPCE.2020.000041 KEYWORDS Continuous statistical monitoring; big data; data compression; higher-order statistics (HOSs); power quality ABSTRACT The high penetration of distributed generation (DG) has set up a challenge for energy management and consequently for the monitoring and assessment of power quality (PQ). Besides, there are new types of disturbances owing to the uncontrolled connections of […]

Structures, Occurrences and Biosynthesis of 11,12,13-Tri-nor-Sesquiterpenes, an Intriguing Class of Bioactive Metabolites

Structures, Occurrences and Biosynthesis of 11,12,13-Tri-nor-Sesquiterpenes, an Intriguing Class of Bioactive Metabolites

Posted May 18, 2022

DOI 10.3390/plants11060769 KEYWORDS 11,12,13-tri-nor-sesquiterpenes; isolation; biosynthesis; biological activity ABSTRACT The compounds 11,12,13-tri-nor-sesquiterpenes are degraded sesquiterpenoids which have lost the C3 unit of isopropyl or isopropenyl at C-7 of the sesquiterpene skeleton. The irregular C-backbone originates from the oxidative removal of a C3 side chain from the C15 sesquiterpene, which arises from farnesyl diphosphate (FDP). The C12-framework is generated, generally, in all […]

Successful and stable operation of anaerobic thermophilic co-digestion of sun-dried sugar beet pulp and cow manure under short hydraulic retention time

Successful and stable operation of anaerobic thermophilic co-digestion of sun-dried sugar beet pulp and cow manure under short hydraulic retention time

Posted May 18, 2022

DOI 10.1016/j.chemosphere.2021.133484 KEYWORDS Sun dried sugar beet pulp; cow manure; anaerobic co-digestion; thermophilic; semi-continuous reactors ABSTRACT This work consists of a long-term (621 days) experimental study about biogas production from sun dried sugar beet pulp and cow manure. Thermophilic (55 °C) anaerobic co-digestion was performed in semi-continuous reactors, testing ten hydraulic retention times (30-3 days) (HRTs) […]

Techno-economic evaluation of bioenergy production from anaerobic digestion of by-products from ethanol flex plant

Techno-economic evaluation of bioenergy production from anaerobic digestion of by-products from ethanol flex plant

Posted May 18, 2022

DOI 10.1016/j.fuel.2021.122171 KEYWORDS Sugarcane; corn; first-generation ethanol; bioeconomy; avoided greenhouse gases emissions; bioenergy ABSTRACT Ethanol production implies in by-products generation, mainly vinasse and stillage, respectively generated from sugarcane and corn ethanol production in flex plants. Both by-products require efficient treatment routes to avoid environmental side-effects to support energy recovery. Accordingly, the aim of this study was to evaluate […]

The complemented mutant complΔBcstc7niaD, in the STC7 of Botrytis cinerea led to the characterization of 11,12,13-tri-nor-eremophilenols derivatives

The complemented mutant complΔBcstc7niaD, in the STC7 of Botrytis cinerea led to the characterization of 11,12,13-tri-nor-eremophilenols derivatives

Posted May 18, 2022

DOI 10.1016/j.phytochem.2021.113003 KEYWORDS Botrytis cinerea; sclerotiniaceae; phytopathogenic fungus; STC7; eremophilenols; 11,12,13-Tri-nor-eremophilenes; biosynthesis ABSTRACT Botrytis cinerea has high potential for the production of specialized metabolites. The recent resequencing of the genome of the B05.10 strain using PacBio technology and the resulting update of the Ensembl Fungi (2017) database in the genome sequence have been instrumental in identifying […]

Toxic elements and trace elements in Macrolepiota procera mushrooms from southern Spain and northern Morocco

Toxic elements and trace elements in Macrolepiota procera mushrooms from southern Spain and northern Morocco

Posted May 18, 2022

DOI 10.1016/j.jfca.2022.104419 KEYWORDS Parasol mushroom; wild edible mushrooms; foods; toxic elements; trace elements; Spain; Morocco; health risk assessment ABSTRACT Anthropogenic activities, such as mining and fossil fuel combustion, produce large amounts of pollutants that affect environmental homeostasis. Wild edible mushrooms fructify exposed to environmental conditions, proving to be efficient accumulators of trace elements and toxic […]

Volatile Composition and Sensory Characterisation of Dry White Wines Made with Overripe Grapes by Means of Two Different Techniques

Volatile Composition and Sensory Characterisation of Dry White Wines Made with Overripe Grapes by Means of Two Different Techniques

Posted May 18, 2022

DOI https://doi.org/10.3390/foods11040509 KEYWORDS Grape over-ripening; alcoholic fermentation; warm climate; climate change; wine aroma; volatile compounds; gas chromatography ABSTRACT Grape over-ripening is a technique that has historically been used for the production of white wines in southern Spain. However, this technique is still widely used for the production of sweet wines. In this study and after recently proving the feasibility of making […]

Development of the “applied proteomics” concept for biotechnology applications in microalgae: Example of the proteome data in nannochloropsis gaditana

Development of the “applied proteomics” concept for biotechnology applications in microalgae: Example of the proteome data in nannochloropsis gaditana

Posted May 18, 2022

DOI 10.3390/md20010038 KEYWORDS Applied proteomics; biotechnology; industrial; microalgae; omics ABSTRACT Most of the marine ecosystems on our planet are still unknown. Among these ecosystems, microalgae act as a baseline due to their role as primary producers. The estimated millions of species of these microorganisms represent an almost infinite source of potentially active biocomponents offering unlimited biotechnology applications. This review […]

Moving towards the ecological intensification of tree plantations

Moving towards the ecological intensification of tree plantations

Posted May 18, 2022

DOI 10.1016/j.tplants.2021.12.009 KEYWORDS biodiversity conservation; ecological intensification; ecosystem services; resilience; sustainable forest management; timber yield ABSTRACT The growing demand for timber and the boom in massive tree-planting programs could mean the spreading of mismanaged tree plantations worldwide. Here, we apply the concept of ecological intensification to forestry systems as a viable biodiversity-focused strategy that could […]

A Theoretical Approximation of the Accelerating Effects of Ultrasound about the Extraction of Phenolic Compounds from Wood by Wine Spirits

A Theoretical Approximation of the Accelerating Effects of Ultrasound about the Extraction of Phenolic Compounds from Wood by Wine Spirits

Posted May 18, 2022

DOI 10.3390/foods11040517 KEYWORDS Kinetics; extraction; phenols; wood; spirits; aging ABSTRACT The acceleration on the extraction by the sonication of phenolic compounds (measured as the Total Phenolic Index) from wood chips by wine distillates is studied in the present paper. Using the Arrhenius equation, the theoretical temperature at which the kinetics obtained by these sonicated extraction processes are equal to the […]

A comparison study between ultrasound–assisted and enzyme–assisted extraction of anthocyanins from blackcurrant (Ribes nigrum L.)

A comparison study between ultrasound–assisted and enzyme–assisted extraction of anthocyanins from blackcurrant (Ribes nigrum L.)

Posted May 18, 2022

DOI 10.1016/j.fochx.2021.100192 KEYWORDS Anthocyanins; ultrasound–assisted extraction; enzyme–assisted extraction; blackcurrant; ribes nigrum; Plackett–Burman; box-Behnken; comparison   ABSTRACT Blackcurrant (Ribes nigrum L.) is a fruit rich in vitamins, fatty acids, minerals, essential oils and phenolic compounds, including anthocyanins. In the present work, two anthocyanin extraction methods from blackcurrant samples based on Ultrasound-Assisted Extraction (UAE) and Enzyme-Assisted Extraction (EAE) have been developed. A Plackett–Burman design […]

A method to remove cellulose from rich organic samples to analyse microplastics

A method to remove cellulose from rich organic samples to analyse microplastics

Posted May 18, 2022

DOI 10.1016/j.jclepro.2021.130248 KEYWORDS Cellulose; detection; microplastics; sludge; wastewater ABSTRACT Knowing the amount of microplastics that currently reach wastewater is extremely important today. Furthermore, carrying out a good quantification and detection of the type of plastic provides valuable information. However, the wastewater is loaded, in addition to a high concentration of organic matter, with a high concentration of cellulose at […]

A microwave-based extraction method for the determination of sugar and polyols: Application to the characterization of regular and peaberry coffees

A microwave-based extraction method for the determination of sugar and polyols: Application to the characterization of regular and peaberry coffees

Posted May 18, 2022

DOI 10.1016/j.arabjc.2021.103660 KEYWORDS Carbohydrates; green bean; roasted coffee; arabica coffee; robusta coffee ABSTRACT The brewing properties of coffee products are defined by the chemical composition in the bean, including sugars and polyols. Some factors, such as coffee species and roasting, may affect the level of these compounds in the bean. A new analytical microwave-assisted extraction (MAE) […]

An Attempt to Optimize Supercritical CO2 Polyaniline-Polycaprolactone Foaming Processes to Produce Tissue Engineering Scaffolds

An Attempt to Optimize Supercritical CO2 Polyaniline-Polycaprolactone Foaming Processes to Produce Tissue Engineering Scaffolds

Posted May 18, 2022

DOI 10.3390/polym14030488 KEYWORDS polycaprolactone; polyaniline; supercritical CO2 foaming; scaffolds; conjugated polymers ABSTRACT Conjugated polymers are biomaterials with high conductivity characteristics because of their molecular composition. However, they are too rigid and brittle for medical applications and therefore need to be combined with non-conductive polymers to overcome or lessen these drawbacks. This work has, consequently, focused on the development of three-dimensional […]

An ultrasound-based technique for the analytical extraction of phenolic compounds in red algae

An ultrasound-based technique for the analytical extraction of phenolic compounds in red algae

Posted May 18, 2022

DOI 10.1016/j.arabjc.2021.103597 KEYWORDS Rhodophyta; optimization; box-Behnken design; response surface methodology; method validation ABSTRACT Phenolic compounds are bioactive compounds that are also naturally found in red algae. To determine the level of these compounds in the red algae, spectroscopic or chromatographic determination was applied over the liquid extracts. Therefore, a prior extraction method is needed. The presented study aimed to develop […]

Analytical and Chemometric Characterization of Fino and Amontillado Sherries during Aging in Criaderas y Solera System

Analytical and Chemometric Characterization of Fino and Amontillado Sherries during Aging in Criaderas y Solera System

Posted May 18, 2022

DOI 10.3390/molecules27020365 KEYWORDS fino; amontillado; sherry wine; criaderas y solera; wood; multiple linear regression ABSTRACT Fino and Amontillado are Sherry wines, produced in Marco de Jerez area (southern Spain), and aged in Criaderas y Solera system. Fino Sherry wine follows a biological aging process, under a veil of flor yeasts, while Amontillado Sherry wine shares the same biological aging firstly, followed by oxidative aging, […]

Application of Citrus By-Products in the Production of Active Food Packaging

Application of Citrus By-Products in the Production of Active Food Packaging

Posted May 18, 2022

DOI 10.3390/antiox11040738 KEYWORDS citrus waste; supercritical CO2; sequential fractionation; supercritical impregnation; antioxidant activity; antimicrobial activity ABSTRACT Some citrus by-products such as orange peel contains valuable compounds that could be recovered and restored into the food chain. In this study, an efficient valorization of orange peel has been investigated using green extraction, fractionation, and impregnation techniques. The first step included its […]

Article Optimal Design Approach Applied to Headspace GC for the Monitoring of Diacetyl Concentration, Spectrophotometric Assessment of Phenolic Compounds and Antioxidant Potential in Different Fermentation Processes of Barley

Article Optimal Design Approach Applied to Headspace GC for the Monitoring of Diacetyl Concentration, Spectrophotometric Assessment of Phenolic Compounds and Antioxidant Potential in Different Fermentation Processes of Barley

Posted May 18, 2022

DOI 10.3390/app12010037 KEYWORDS experimental design; headspace GC; diacetyl; fermentation; barley; spectrophotometric; antioxidant activity; TPC; TFC ABSTRACT The present study aimed to validate a control method on the gas chromatography system (GC) based on the experimental design strategy, to examine the changes and correlation between the fermentation process and the quality of alcoholic and non-alcoholic beer product, especially the formation of diacetyl. On the […]

Assessment of Volatile Compound Transference through Firefighter Turnout Gear

Assessment of Volatile Compound Transference through Firefighter Turnout Gear

Posted May 18, 2022

DOI 10.3390/ijerph19063663 KEYWORDS volatile organic compounds (VOCs); fire; occupational risk; toxicity; turnout gear; firefighter; ion mobility spectrometry; chemometrics; combustion products ABSTRACT There is high concern about the exposure of firefighters to toxic products or carcinogens resulting from combustion during fire interventions. Firefighter turnout gear is designed to protect against immediate fire hazards but not against chemical agents. Additionally, the decontamination of firefighter personal […]

Biosorption of nickel, cobalt, zinc and copper ions by Serratia marcescens strain 16 in mono and multimetallic systems

Biosorption of nickel, cobalt, zinc and copper ions by Serratia marcescens strain 16 in mono and multimetallic systems

Posted May 18, 2022

DOI 10.1007/s10532-021-09964-9 KEYWORDS biosorption; heavy metals; serratia marcescens; waste liquor (WL); multimetallic systems ABSTRACT The metallurgical industry is one of the main sources of heavy metal pollution, which represents a severe threat to life. Metals can be removed from aqueous solutions by using microbial biomasses. This paper analyses the heavy metal biosorption capacity of Serratia marcescens strain […]

Co-digestion of two-phase olive-mill waste and cattle manure: Influence of solids content on process performance

Co-digestion of two-phase olive-mill waste and cattle manure: Influence of solids content on process performance

Posted May 18, 2022

DOI 10.1016/j.fuel.2022.124187 KEYWORDS total solids content; co-digestion; two-phase olive-mill waste; cattle manure; methane production ABSTRACT The solids content is a key parameter in the development of anaerobic digestion as it can determine the proper operation and performance of the process. The influence of the total solids content on the mesophilic anaerobic co-digestion of two-phase olive-mill waste (2POMW) […]

Comparison of different processing approaches by SVM and RF on HS-MS eNose and NIR Spectrometry data for the discrimination of gasoline samples

Comparison of different processing approaches by SVM and RF on HS-MS eNose and NIR Spectrometry data for the discrimination of gasoline samples

Posted May 18, 2022

DOI 10.1016/j.microc.2021.106893 KEYWORDS gasoline; research octane number; HS-MS eNose; NIRS; chemometrics; support vector machine; random forest; low-level data fusion ABSTRACT In the quality control of flammable and combustible liquids, such as gasoline, both rapid analysis and automated data processing are of great importance from an economical viewpoint for the petroleum industry. The present work aims to evaluate the chemometric […]

Alternative beverages for probiotic foods

Alternative beverages for probiotic foods

Posted May 18, 2022

DOI 10.1007/s00217-021-03904-w KEYWORDS functional foods; probiotics; matrix; viability; prebiotics; physico-chemical and sensory characteristics ABSTRACT Food industry has been recently aiming among other things toward the production of functional foods. Probiotics fall into this category. Although dairy food matrices have traditionally been used for the elaboration of them, in recent years, a number of allergic or […]

Anaerobic co-digestion of sewage sludge, wine vinasse and poultry manure for bio-hydrogen production

Anaerobic co-digestion of sewage sludge, wine vinasse and poultry manure for bio-hydrogen production

Posted May 18, 2022

DOI 10.1016/j.ijhydene.2021.11.032 KEYWORDS bio-hydrogen production; sludge; wine vinasse; poultry manure; anaerobic co-digestion ABSTRACT The influence of the addition of poultry manure on the thermophilic acid co-fermentation of sewage sludge and wine vinasse was studied. For this, discontinuous tests were carried out to determine the potential for hydrogen production (BHP tests) of 50:50 mixtures of sludge and wine vinasse with different amounts […]

Anaerobic digestion of slaughterhouse waste in batch and anaerobic sequential batch reactors

Anaerobic digestion of slaughterhouse waste in batch and anaerobic sequential batch reactors

Posted May 18, 2022

DOI 10.1007/s13399-021-02179-1 KEYWORDS Anaerobic co-digestion; Slaughterhouse wastewater; Supernatant activated sludge; Kinetic modelling; Anaerobic sequential batch reactor ABSTRACT This work focuses on the design of an effective treatment process for slaughterhouse waste management. Four different treatment sequences were proposed, based on aerobic and anaerobic technologies, as well as thermal and centrifugation pre-treatments. Biochemical methane potential tests were […]

Biochemical assays of potential methane to test biogas production from dark fermentation of sewage sludge and agricultural residues

Biochemical assays of potential methane to test biogas production from dark fermentation of sewage sludge and agricultural residues

Posted May 18, 2022

DOI 10.1016/j.ijhydene.2022.02.080 KEYWORDS Bio-methane potential (BMP); Sewage sludge; Wine vinasse; Poultry manure; Anaerobic co-digestion  ABSTRACT  This study aims to study the methane generation potential (BMP tests) of different samples from the dark acid fermentation of sewage sludge:wine vinasse, and sewage sludge:wine vinasse:poultry manure. Specifically, mixtures of sewage sludge (S) and wine vinasse (V) were used in […]

Cryptic Metabolites from Marine-Derived Microorganisms Using OSMAC and Epigenetic Approaches

Cryptic Metabolites from Marine-Derived Microorganisms Using OSMAC and Epigenetic Approaches

Posted May 18, 2022

DOI 10.3390/md20020084 KEYWORDS cryptic metabolite; marine-derived microorganism; OSMAC strategy; chemical elicitor; enzyme inhibitor; epigenetic modifier ABSTRACT Marine microorganisms have proven to be a source of new natural products with a wide spectrum of biological activities relevant in different industrial sectors. The ever-increasing number of sequenced microbial genomes has highlighted a discrepancy between the number of gene clusters potentially encoding the […]

Current Status and Future Trends of Power Quality Analysis

Current Status and Future Trends of Power Quality Analysis

Posted May 18, 2022

DOI 10.3390/en15072328 KEYWORDS observational data analysis; power quality; quality indices; big data ABSTRACT In this article, a systematic literature review of 153 articles on power quality analysis in PV systems published in the last 20 years is presented. This provides readers with an overview on PQ trends in several fields related to instrumental techniques that are being used […]