Pulsedelectricfieldassisted extraction of anthocyanins. One of these nonconventional novel techniques is extraction with the use of a pulsed electric. Breakage of cellular tissue by pulsed electric field. A pulse is a single disturbance that moves through a medium from one point to the next point. Electric field results in inactivation of microorganisms suspended in the food medium without significantly increasing the temperature of the food product. One of these nonconventional novel techniques is extraction with the use of a pulsed electric field pef 2. The present invention relates to a process enhancing the extraction of phytochemicals from plant materials using pulsed electric field. Pulsed electric field technology in food preservation.
This process is optimized through response surface methodology rsm. Pulsemasters pulsed electric field equipment conditioner. Pulsed electric field technology in food processing. Venturini b elisa luengo c javier raso d esther arias e. Effect of pulsed electric field treatments on permeabilization and extraction of pigments from chlorella vulgaris. Intensification of essential oil extraction of the. Pulsed electric field pef applications can be utilised to achieve disintegration of biological tissues or microbes. Pulsed electric fields as a green technology for the extraction of bioactive compounds from thinned peach byproducts.
Pulsemaster supplies pulsed electric field pef systems to both the food and beverage industry, and the scientific sector. Pulsed electric fields for algal extraction and predator. We offer industrial turnkey solutions and fully integrated systems under the brand name conditioner for pef treatment of solids, semi solids and liquids. Pulsed electric field based cyclic protein extraction of microalgae. During the last decades there was observed a growing interest in electric field application for treatment of food and agricultural raw materials. Xanthophyllomycesdendrorhousyeast and haematococcuspluvialis microalgae accumulate this pigment, and hundreds of scien. Pef has been applied for this purpose to improve the permeabilization by electroporation of the biological membranes. High intensity pulsed electric field hipef processing involves. Enhanced extraction of phenolic compounds from merlot. Feb 02, 2015 pulsed electric field processing present status of pulsed electric field technology the extent of improvement in a food processing company achieved by an emerging technology generally reflects the interest in that technology by the food industry. Pulsed electric fields are applied to the treatment zone to lyse cell walls of the small aquatic plants to enhance extraction of.
Extraction of bioactive compounds from whole red cabbage. A pulsed electric field method for the continuous extraction of oil and lipids from small aquatic plants, the method including providing a continuous flow of a slurry of small aquatic plants. The results indicate a dependency of the protein extraction on the electric field strength. Pulsed electric fields for algal extraction and predator control 7.
Highvoltage pulsed electric field preprocessing enhances. Aug 12, 2014 in this investigation, the influence of the application of pulsed electric fields pefs of different intensities 37 kvcm and 0300. Pef and extraction efficiency of cold pressed olive oil. Pulsed electric fields are applied to the treatment zone to lyse cell walls of the small aquatic plants to enhance extraction of oil and lipids therefrom. The pef treatment was shown to be very effective for inactivation of microorganisms, increasing the pressing efficiency and enhancing the juice extraction from. We are sole provider of our elea pulsed electric field systems pef to the food, beverage and scientific sectors in north america, united kingdom and ireland. A similar effect can be expected after pef treatment of oil seeds prior to recovery. Plant oil extraction sitzmann and munch 1988 reported an enhanced separation of tankage emulsions when extracting protein and fat from animal tissue.
The purpose of this research was to study the influence of pulsed electric field pef intensity 0, 3, and 6 kvcm and the speed of oil extraction screw press 10, 20, and 30 rpm on the physicochemical properties of cannabis oil. Pulsed electric field pretreatment of algae for oil. Improving carotenoid extraction from tomato waste by pulsed. Pulsed electric fields in food preservation 785 pore initiation electric field water water influx membrane rupture cell lysis inactive cell swelling figure 33. Continuous extraction from chlorella vulgaris cultures via pulsed electric field pef processing might be a viable process to increase the performance of. Home technology pulsed electric field pretreatment of algae for oil extraction. Pulsed electric field pretreatment of algae for oil extraction. The waveforms of pulses c ommonly used in pef generators are exponential decay. Pulsed electric fieldassisted extraction of juice from. Pulsemaster pulsed electric field pef processing systems. Pulsed electric field pef processing is a novel, nonthermal preservation method that has the potential to produce foods with excellent sensory and nutritional quality and shelflife. Frontiers improving carotenoid extraction from tomato.
The application of pulsed electric fields pef as an innovative technology can be. Pulsedfield gel electrophoresis pfge technique and its. Pulsed electric fieldassisted ethanolic extraction of date. In this study, pulsed electric field pef was utilized to replace the conventional thermal dehydration procedure before the phenolic extraction. In this work, we report on a device and a protocol for pretreatment for starch extraction from a green macroalga ulva ohnoi u. Enhanced extraction of phenolic compounds from onion by pulsed. Moreover, the novel utilization of pulsed electric field pef as a membrane permeating technique for intensification of the lipid extraction is analyzed. Pdf on sep 26, 2011, eugene vorobiev and others published pulse electric fieldassisted extraction find, read and cite all the research you need on. A comparative study with other extraction techniques eleni bozinou 1, ioanna karageorgou 1, georgia batra 1, vassilis g. Extraction of intercellular components by pulsed electric. These pulses rupture the algal cell walls, increasing the availability of intracellular materials for downstream separation and extraction. Our german research and manufacturing partners elea design and build the best pulsed electric field systems in the world. Pulsed electric field processing present status of pulsed electric field technology the extent of improvement in a food processing company achieved by an emerging technology generally reflects the interest in that technology by the food industry. Pulsed electric fields as a green technology for the.
Request pdf pulsed electric field treatment for solidliquid extraction of red beetroot pigment extractability of red pigment from red beetroot was investigated using pulsed electric field. Using chlorella vulgaris in this study, we show that up to half of the proteins present in. The influence of pulsed electric field pef pretreatment of blueberry fruits vaccinium myrtillus l. By development of equipment based on state of the semiconductor. Pulsed electric field as an alternative pretreatment for. Pdf pulsed electric fields for algal extraction and. Pulsed electric field treatment for solidliquid extraction. Pefassisted extraction essentially involves the discharge of direct current electric pulses of short duration sms and high voltage up to 50 kv into a soft plant material located between at least one highvoltage electrode and one ground electrode puertolas, et al. The objective of this study was to evaluate the effect of pulsed electric field pef treatment on alfalfa juice extraction. Enhanced extraction of valuable compounds from merlot.
Enhanced extraction of phenolic compounds from merlot grapes. Pulsed electric fields pef technology as the potential method to extract microalgae lipid is proposed in this work. Generation of pulsed electric fields requires a fast discharge of electrical energy within a short period of time. Canadian biosystems engineeringle genie des biosystemes au canada 48. Compared to the classical process, pulsed electric field treatment has the advantage of being a method of nonthermal selective extraction pdf. Application of pulsed electric field in the production of. The method of high intensity pulse electric field used to inactivate microorganisms has been under. Pulsed electric field pef is commonly understood as a fast, nonthermal, and highly effective method for extraction of intracellular compounds. Evaluation of celldisruption effects of pulsedelectric.
Another promising technique could be application of pulsed electric. This paper is aimed to investigate the application of pulsed electric field pef as a pretreatment step for the intensification of the essential oil extraction yield of marrubium vulgar that is a local plant from mascara, algeria. The impact of pulsed electric field on the extraction of. Pulsed electric field pefassisted protein recovery from. Pdf effects of pulsed electric field on yield extraction. Extraction of bioactive compounds from whole red cabbage and beetroot using pulsed electric fields and evaluation of their functionality. Pulsed electric field processing involves the application of pulses of high electric voltage in the range of 20 to 80 kvcm across food contained between 2 electrodes. Scheme of a pulsed electric field system for food processing. Pdf pulsed electric field extraction and antioxidant activity.
Treatment of pef associated with conventional extraction, such as solvent extraction is demonstrated to improve the extraction efficiency of lipid and other valuable intracellular components from microalgae. Extraction of intercellular components by pulsed electric fields. Pulsed electric fieldassisted extraction of valuable compounds from microorganisms juan m. Pulsed electric field based cyclic protein extraction of. Pulsed electric fields for food processing technology. Pulsed electric fields for algal extraction and predator control. Pulsed electric field of moderate intensity and short duration accelerates the flow kinetics of phenolic compounds through the cell membranes. Pulsed electric field pef processing is a nonthermal method of food preservation.
Pdf the scope of this work was to determine the possibility of the application of the pulsed electric field pef technique to the production of. Pdf on sep 26, 2011, eugene vorobiev and others published pulse electric fieldassisted extraction find, read and cite all the. The high intensity pulsed electric field processing system is a simple electrical system consisting of a high voltage source, capacitor bank, switch, and treatment chamber. Assessment of a pulsed electric field based treatment for. Various applications have been identified such as improvement of mass transfer during extraction or drying as well as gentle food preservation. Pulsed electric field of moderate intensity and short duration accelerated the flow kinetics of phenolic compounds through the cell membranes.
Temperature increase during the treatment brought about most of the destruction of. Pulsed electric fields for algal extraction and predator control 7 assessment of the applicability of pef, and the required process conditions for algal cell lysing, across a range of microalgae species, must be conducted. Pulsed electric field processing of foods new food magazine. Compared to the classical process, pulsed electric field treatment has the advantage of nonthermal selective extraction pulsed electric field pef processing is a nonthermal method of food preservation. Application of pulsed electric field technique in food. The first commercial applications of the technique have been achieved. Highvoltage pulsed electric field preprocessing enhances extraction of starch, proteins, and ash from marine macroalgae ulva ohnoi meghanath s. Extraction of bioactive compounds from whole red cabbage and. Critical factors determining inactivation kinetics by pulsed electric field food processing. A continuous flow of small aquatic plants is directed to a treatment zone. New and promising extraction techniques have been introduced so as to overcome these limitations. Severe cell disruption was evident after pef treatment, especially with treatment intensity ti 35 kwhm3.
Mar 23, 2011 in order to use synechocystis pcc 6803 as feedstock of nonpetroleumbased diesel fuel, pulsed electric field pef technology was used for cell disruption prior to extraction of intracellular lipids. Drying is an essential pretreatment prior to extraction of tea polyphenols from tea leaves, which is a time and energyintensive process. Compared to the classical process, pulsed electric field treatment has the advantage of nonthermal selective extraction. Alternative extraction techniques such as permeabilization, pulsed electric field extraction, membrane processing, supercritical extraction, sonication, and nano grinding offer benefits of safety. Institute for pulsed power and microwave technology, karlsruher institute for technology, germany abstract pulsed electric. Pulsed electric field pef treatment has been largely investigated for microbial inactivation and applications in the food industry, 37. The influence of pulsed electric field pef treatment on the anthocyanin extraction yield aey from purplefleshed potato pfp at different extraction times 60480 min and temperatures 1040 c using water and ethanol 48% and 96% as solvents has been investigated. Pulsed electric field extraction and antioxidant activity.
The process is inline, and scalable to high volumes. Recently this treatment has attracted attention as a potential process for facilitation of extraction of oil from green microalgae, 8. The influence of different pef conditions on total polyphenol yield from fresh tea leaves combined with a solid. Alfalfa mash was produced by blending alfalfa leaves. Rasopulsedelectricfieldassisted extraction of anthocyanins from purplefleshed potato. Us8147879b2 pulsed electric field enhanced method of. Dpfe treated with pef exhibit a strong antioxidant activity as compared to untreated extract, while electrical conductivity, ph values, and titratable.
This note describes the potential use of some nonconventional methods including sub and supercritical fluid extraction, pulsed electric fields, highvoltage electric. Pulsed electric field pef technology is a low cost, low energy process that applies high voltage electric pulses to an algal slurry. Pulsed electric fields as a green technology for the extraction of bioactive compounds from thinned peach byproducts author links open overlay panel diego redondo a b maria e. Use of pulsed electric fields pef in the food industry dlg ev. Pulsed electric field assisted juice extraction from alfalfa. Pulsed electric field processing in food technology. Pdf pulse electric fieldassisted extraction researchgate. In this contribution, the utilization of ethyl acetatebased solvents is suggested as a green alternative. The effect of the application of pulsed electric field pef treatments of different intensities 02 kvcm on arbequina olive paste in reference to olive oil extraction at different malaxation times 0, 15, and 30 min and temperatures 15 and 26. The electric field from these pulses electroporates the cell wall, rupturing it, and. Improving carotenoid extraction from tomato waste by. The basic principle of the pef technology is the application of short pulses of high electric fields with duration of micro seconds micro to milliseconds and intensity in the order of 10 80 kvcm.
Pulsed electric fields for food processing technology intechopen. Assessment of a pulsed electric field based treatment for marine microalgae cell disruption. Pef treatments carried out at field strengths of 1, 3, and 5 kvcm and an. Pulsed electric fieldassisted extraction of juice from food. The potential of using pulsed electric field pef technology. Pulsed electric field extraction and antioxidant activity determination of moringa oleifera dry leaves. A pulsemaster pefsystem for olive oil processing pulsemaster have succesfully developed a dedicated pulsed electric field system for olive oil processing, max 10 us tonsh 9,000 kgh loading rate. Sep 15, 2012 examples ohmic heating microwave heating high hydrostatic pressure hhp ultrasonication pulsed electric field 4.
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