At this time biodiesel appears to be a viable proposition as renewable energy source and an alternative fossil-based fuels. Following many years of research, the use process intensification techniques for production is well documented. This work has focused more on study using continuous flow systems assisted by acoustic cavitation (ultrasonic or hydrodynamic) microwaves. The target end user small medium farm where such equipment could provide sufficient fuel on-site agricultural machinery...

The aim of this study was to investigate the effects simultaneous supplementation laying hens with dietary sources n-3 polyunsaturated fatty acids (PUFA) and carotenoids on egg quality, carotenoid profile yolk feed lipid peroxidation. A 6-week experiment carried out 53-week old (96 Tetra SL) assigned a control three treatment groups supplemented 5% flaxseeds different levels dried tomato waste (DTW, 2.5%, 5.0% 10.0%). Hens from 7.5% DTW had significantly lower average daily intake percentage...

This paper focuses on a process for dairy wastewater treatment by mixotrophic cultivation of microalgae Nannochloris sp., using cheese whey obtained as side flow from production an organic carbon source. The samples were prepared adding to the standard growth medium increasing amounts whey, calculated ensure lactose concentration between 0 and 10 g/L. incubated at constant temperature 28 °C 175 rpm stirring speed total time seven days. Two LED (Light Emitting Diode) illumination schemes...

This paper has approached the study of dairy wastewater treatment and simultaneous biocompound production by Porphyridium purpureum under continuous light a day–night cycle. The main goals were to achieve reduction in lactose content cheese that was tested and, at same time, obtain added value from produced compounds, so as increase economic process. results show biomass increases proportionally with concentration for both illumination options. waste stream reduced over 90% just 7 days....

Nonbiodegradable food packaging films are made from plastics such as polyethylene and polypropylene, which can take hundreds of years to decompose create environmental hazards. On the other hand, biodegradable renewable materials corn starch or cellulose, that degrade within a few weeks months prove be more sustainable environmentally friendly. In this work, we used hydrolyzed (CSH) with α-amylase prepare film properties. The was tested for 60 days at different accelerated temperatures...

Currently there is a drive towards the minimisation and reclamation of valuable materials from waste products food beverage industry. This can be achieved through extraction residual nutraceuticals such materials. Tomato pomace contains carotenoids other chemicals which extracted directly into edible oils to improve health-giving properties oils. We report here novel green solvent, fatty acid ethyl esters (FAEE), significantly more effective than sunflower oil hexane for lycopene...

ABSTRACT The aim of our study was to establish the effect selenium and betaine on growth D. salina, accumulation photosynthetic pigments antioxidant activity hydrophobic fraction. This approach an attempt demonstrate ‘microalgae biostimulant’ effects, similar ‘plant i.e. increased tolerance abiotic stress enhanced bioactive compounds. A high-throughput assay done in 24-well microplates, at 15% NaCl different concentrations sodium selenite (0, 0.5, 2 8 µM) or 5, 50 500 µM). Both induced a...

This research aimed to assess the impact of incorporating Castanea sativa powder (CSP) into laying hens diets, examining reduced crude protein (CP) levels and their effects on production performance, haematological parameters, nutrients mineral digestibility environmental pollution by nitrogen (N) absorption excretion. For that, a 6-week trial was developed, with 90 Lohmann Brown aged 51 weeks, raised in cages, divided three groups 30 each. The diets were composed as follows: control group...

The influence of ultrasound irradiation on the algal biomass productivity as well its oil content and fatty acids profile, grown in a modified Zarrouk medium, i.e., deproteinized whey waste solution, was investigated. samples (Nannochloris sp. 424-1 microalgae) were for 7 days thermostated incubator at 28 °C, shaken under continuous light. During this period, subjected to induced stress by ultrasonic different powers sonication time. obtained results demonstrate that stressing algae has...

This study proposed an approach for the enhancement of coarse wool from a Romanian sheep breed—Țurcana—for its utilization as sustainable and efficient thermal insulation material. The process involved washing with non-polar solvent, to eliminate lanoline impurities raw wool, followed by impregnation binder, dolomite, copper nanoparticles. structural elemental changes were analyzed using scanning electron microscopy (SEM) energy-dispersive X-ray spectroscopy (EDS) techniques. antimicrobial...

This study aimed to develop a facile synthesis procedure for heterogeneous catalysts based on organic guanidine derivatives superbases chemically grafted silica-coated Fe3O4 magnetic nanoparticles. Thus, the three organosilanes that were obtained by reacting selected carbodiimides (N,N'-dicyclohexylcarbodiimide (DCC), N,N'-diisopropylcarbodiimide (DIC), respectively 1-ethyl-3-(3-dimethylaminopropyl) carbodiimide (EDC) with 3-aminopropyltriethoxysilane (APTES) used in one-pot stage generation...

In the last years, researchers, governments, and industries spent significant resources towards biofuels production. Biodiesel has attracted attention as a renewable, non-toxic, biodegradable fuel. this work, biodiesel production using waste oil from margarine industry is described. Another objective of paper additivation with glycerol ketals in order to improve physicochemical properties. blends additives were further analyzed compared EN specifications. The characterization revealed...

This study evaluated the effect of flax meal (FM) and barley rootlets (BR) in Holstein dairy cows compound feeds (CFs) order to assess their effects on quality (physico-chemical parameters fatty acids composition) quantity (yield) raw milk. The trial used a number 15 multiparous cows, at 27 weeks midlactation stage, averaging 624.19 kg BW, with an initial average milk yield 22.36 litres/day. were divided 3 groups (C, FM FMBR diet, respectively), for 63 days. Cows fed twice/day, received...

This paper has aimed at evaluating the concentration of bioethanol obtained using sunflower stem as natural support, molasses carbon source and Saccharomyces cerevisiae yeast in a continuous flow reactor. The support was tested to investigate immobilization/growth S. yeast. produced by fermentation analyzed gas chromatography two methods: aqueous solutions extraction organic phase. CO2 during process considered estimate when deactivated. laboratory experiments have highlighted that use...

first_page settings Order Article Reprints Font Type: Arial Georgia Verdana Size: Aa Line Spacing:  Column Width:  Background: Open AccessExtended Abstract Synthesis of Chitosan Based Bioflocculants and Their Use for Microalgae Harvesting † by Alexandru Vlaicu 1,2, Andrei Giurgea 1, Ana-Maria Galan 1,* Sanda Velea 1 National Institute Research & Development in Chemistry Petrochemistry—ICECHIM Bucharest, 202 Spl. Independentei, 060021 Romania 2 Faculty Applied Materials Science, University...