16 research outputs found
Reduction of toxin content of Triticum durum in the milling process
The DON toxin in terms of human and animal health is a serious food safety risk factor. Thanks to the favorable impact of vintage effect occurring in recent years the Fusarium contamination of wheat and consequently a high DON toxin concentration often cause problem. Therefore, it is important that there be methods during of wheat milling process, which reduces the level of toxin. Experience has shown that Triticum durum wheat species is more sensitive to Fusarium infection than Triticum aestivum species. According to professional literature, almost the prevention is considered to be the exclusive method to keep the content of DON-toxin below safe level. It is very difficult, sometimes impossible to correct those food safety risks, which polluted the products in the process of cropping. My objective was to investigate, if it possible to decrease DON-toxin content of durum wheat and to minimize the food safety risk by application of milling technology with good production practice and technological conditions. According to results of measurements, Sortex Z color sorting decreased DON-toxin content of wheat
Élelmiszerek mirohullámĂş dielektromos jellemzĹ‘inek vizsgálata Ă©s alkalmazása a technolĂłgiai fejlesztĂ©sben Ă©s minĹ‘sĂ©gbiztosĂtásban = Research of microwave dielectric properties of foods, their use in technological development and in the quality assurance
A kutatás elsĹ‘ fázisában ĂĽregrezonátoros Ă©s csĹ‘tápvonalas mĂ©rĹ‘rendszereket fejlesztettĂĽnk ki Ă©lelmiszerek dielektromos jellemzĹ‘inek vizsgálata cĂ©ljábĂłl. MĂ©rĂ©si Ă©s számĂtási eredmĂ©nyeink alapján algoritmust állĂtottunk fel, amellyel gyorsan Ă©s egyszerűen tudjuk megbecsĂĽlni kĂĽlönbözĹ‘ nedvessĂ©gtartalmĂş Ă©s halmazsűrűsĂ©gű gabonák dielektromos állandĂłját. Tej Ă©s sör mikrohullámĂş pasztĹ‘rözĂ©se cĂ©ljábĂłl folyamatos ĂĽzemű laboratĂłriumi hĹ‘kezelĹ‘ berendezĂ©st fejlesztettĂĽnk ki. A folyamatos ĂĽzemet a mikrohullámĂş kĂ©szĂĽlĂ©kbe helyezett ĂĽveg-spirál segĂtsĂ©gĂ©vel alakĂtottuk ki. A technikai jellemzĹ‘k vizsgálatán tĂşl mikrobiolĂłgiai vizsgálatot is vĂ©geztĂĽnk hĹ‘kezelt tej Ă©s sörmintákon. A vizsgálatok eredmĂ©nyekĂ©nt megállapĂthatĂł, hogy a spirálcsöves mikrohullámĂş hĹ‘kezelĹ‘ berendezĂ©s alkalmas pasztĹ‘rözĂ©sre. A kutatĂłmunka keretĂ©ben kisĂ©rletet tettĂĽnk palackozott sör mikrohullámĂş hĹ‘kezelĂ©sĂ©re alkalmas folyamatosĂĽzemű berendezĂ©s kifejlesztĂ©sĂ©re.A kifejlesztett változat a megengedhetĹ‘nĂ©l nagyobb háttĂ©r sugárzást okoz,ezĂ©rt továbbfejlesztĂ©se szĂĽksĂ©ges. A kutatás befejezĹ‘ fázisában tojáslĂ© mikrohullámĂş pasztĹ‘rözĂ©sĂ©vel kapcsolatos vizsgálatokba kezdtĂĽnk, ezek eredmĂ©nye Ă©s további fejlesztĂ©se folyamatban van. | A measuring system with a resonant cavity and with a rectangular waveguide was set up to investigate the dielectric properties of food products. Based on the results of the measurements and calculations an algorithm was set up, which makes possible the quick and simple estimation of the complex permittivity of wheat samples of different moisture content and bulk density. A laboratory pasteurizations device was developed for the continuous microwave heat treatment of milk and beer. Continuous operation was achieved by putting glass spiral insets in the oven. In addition to the measurement of physical attributes some microbiological examinations were also carried out on the pasteurized milk and beer samples. The results of the investigations show that the microwave heat treatment device with spiral pipes is suitable for pasteurization. In the framework of this research an attempt was made to set up a continuously operating device that is suitable for the microwave heat treatment of bottled beer. However the background radiation of the device exceeds occupational safety limits, thus it is not appropriate for investigations in its current form. In the final stages of this research some investigations were carried out related to the microwave pasteurization of liquid eggs. The determination of results and the further development of the method is still underway
A Triticum durum toxintartalmának csökkentése a malomipari folyamatban
A termesztĂ©si tapasztalatok szerint a Triticum durum bĂşzafajták a fuzárium fertĹ‘zĂ©sre Ă©rzĂ©kenyebbek, mint a Triticum aestivum fajtái. A szakirodalom a DON-toxin tartalom biztonságos szint alatt tartására szinte kizárĂłlag a megelĹ‘zĂ©st tekinti megoldásnak. A feldolgozás folyamatában már nagyon nehĂ©z, sok esetben lehetetlen korrigálni azokat az Ă©lelmiszerbiztonsági kockázati tĂ©nyezĹ‘ket, amelyek a termesztĂ©s során kerĂĽltek a termĂ©kbe. A kĂsĂ©rletem cĂ©lja annak a vizsgálata, hogy a megfelelĹ‘ gyártási gyakorlattal Ă©s műszaki feltĂ©telekkel rendelkezĹ‘ malmi technolĂłgia alkalmazásával, igazolhatĂłan csökkenthetĹ‘-e a durum bĂşza DON-toxin tartalma, minimalizálva annak Ă©lelmiszerbiztonsági kockázatát. A mĂ©rĂ©si eredmĂ©nyek szerint a Sortex Z szĂnválogatĂł hatására a bĂşza toxintartalma csökkenthetĹ‘
Hogyan lehet csökkenteni a kenyérgabona DON-toxin tartalmát a feldolgozási folyamatban? = How the level of DON-toxin can be reduced during the manufacturing process?
Az Ă©lelmiszerlánc egĂ©szĂ©ben, az alapanyag előállĂtást Ă©s a feldolgozási folyamatokat is beleĂ©rtve, a megfelelĹ‘ technikai háttĂ©r meghatározĂł jelentĹ‘sĂ©ggel bĂr az Ă©lelmiszerbiztonsági kritĂ©riumok, valamint a jogszabályi Ă©s piaci követelmĂ©nyek teljesĂtĂ©sĂ©ben. EbbĹ‘l következĹ‘en alapvetĹ‘, hogy a műszaki feltĂ©teleket biztosĂtĂł beszállĂtĂłk olyan eszközökkel Ă©s berendezĂ©sekkel lássák el az Ă©lelmiszer-előállĂtĂłkat, amelyek megfelelnek az Ă©lelmiszerbiztonsági követelmĂ©nyeknek, Ă©s azt hosszĂş távon fenntarthatĂłvá teszik. A megfelelĹ‘ technikai eszközök alkalmazásával növelhetĹ‘ az Ă©lelmiszerek biztonsága. Ezek a feltĂ©telek segĂtik az Ă©lelmiszer-előállĂtĂłkat abban, hogy a termĂ©k-előállĂtás minden fázisában megfeleljenek a vonatkozĂł higiĂ©niai, kĂ©miai Ă©s biolĂłgiai elĹ‘Ărásoknak, amelyeket a jogszabályok tartalmaznak. KutatĂł munkám cĂ©lja annak igazolása, hogy megfelelĹ‘ műszaki feltĂ©telekkel a feldolgozási folyamatban is hatĂ©konyan csökkenthetĹ‘ a mikotoxin tartalom, ezen belĂĽl a DON-toxin tartalom
Egy malomipari feldolgozási folyamat műszaki feltételeinek a vizsgálata élelmiszerbiztonsági szempontból = Investigation of the technical conditions in milling process conserning food safety
A fuzárium DON-toxinja a gabonafĂ©lĂ©kben Ă©s a feldolgozott gabonatermĂ©kekben egyaránt jelen lehet. A szakirodalom szerint a bĂşzában ez a toxin fordul elĹ‘ leggyakrabban. Magyarországon az elmĂşlt Ă©vekben többször is gondot okozott a mikotoxin a termesztĂ©sben Ă©s a feldolgozásban egyaránt. A termesztĂ©sben jelentĹ‘s termĂ©skiesĂ©st eredmĂ©nyez, a további felhasználás során pedig komoly Ă©lelmiszerbiztonsági kockázatot jelent. A kĂsĂ©rlet során durum bĂşza toxintartalmának változását vizsgáltuk technolĂłgiai körĂĽlmĂ©nyek között. Arra kerestĂĽk a választ, hogy megfelelĹ‘ műszaki feltĂ©telek alkalmazása mellet csökkenthetĹ‘-e a bĂşza DON-toxin tartalma a feldolgozás során
A bĂşza don-toxin változása a malomipari tisztĂtási folyamatban
In the course of the research we examined in a technological environment that if we use optical sorting and modern surface cleaning in the mill cleaning process, how does the toxin contamination of wheat samples change. We collected data on harvested wheat grains in three years to determine if the toxin content of corn samples can be reduced by the combined use of Sortex Z optical sorting and Schule Verticone VPC 480 surface cleaning machines. Descriptive statistics clearly showed that at the end of the purification process the average toxin level of the tested wheat samples decreased in every year. And with inductive statistics at 95% probability level, we found that the previous statement is true for wheat lots also. That is, in the case of the examined years in the purification process in which mentioned modern equipments are used, the contamination of the DON toxin of wheat lots can be reduced before milling.A kutatás során azt vizsgáltuk technolĂłgiai környezetben, hogy ha optikai válogatást Ă©s korszerű felĂĽlettisztĂtást egyĂĽttesen alkalmazunk a malomipari tisztĂtási folyamatban, akkor hogyan változik a bĂşzaminták toxinszennyezettsĂ©ge. Három Ă©vjáratban betakarĂtott bĂşzatĂ©telek esetĂ©n gyűjtöttĂĽnk adatokat arra vonatkozĂłan, hogy a Sortex Z+ optikai válogatĂł Ă©s a Schule Verticone VPC 480 felĂĽlettisztĂtĂł gĂ©pek egyĂĽttes alkalmazásával csökkenthetĹ‘-e a bĂşzatĂ©telek vizsgálati mintáinak a toxintartalma. A leĂrĂł statisztika egyĂ©rtelműen azt mutatta, hogy a tisztĂtási folyamat vĂ©gĂ©re minden Ă©vjáratban a vizsgált bĂşzaminták átlagos toxinszintje csökkent. Az induktĂv statisztikával pedig azt állapĂtottuk meg, hogy 95%-os valĂłszĂnűsĂ©gi szinten a bĂşzatĂ©telek esetĂ©n igaz is az elĹ‘zĹ‘ megállapĂtás. Vagyis a vizsgált Ă©vjáratokban, ha a tisztĂtási folyamatban az emlĂtett korszerű berendezĂ©seket alkalmazzák malomipari Ĺ‘rlĂ©s elĹ‘tt, csökkenthetĹ‘ a bĂşzatĂ©telek DON-toxin szennyezettsĂ©ge
A bĂşza don-toxin változása a malomipari tisztĂtási folyamatban
A kutatás során azt vizsgáltuk technolĂłgiai környezetben, hogy ha optikai válogatást Ă©s korszerű felĂĽlettisztĂtást egyĂĽttesen alkalmazunk a malomipari tisztĂtási folyamatban, akkor hogyan változik a bĂşzaminták toxinszennyezettsĂ©ge. Három Ă©vjáratban betakarĂtott bĂşzatĂ©telek esetĂ©n gyűjtöttĂĽnk adatokat arra vonatkozĂłan, hogy a Sortex Z+ optikai válogatĂł Ă©s a Schule Verticone VPC 480 felĂĽlettisztĂtĂł gĂ©pek egyĂĽttes alkalmazásával csökkenthetĹ‘-e a bĂşzatĂ©telek vizsgálati mintáinak a toxintartalma. A leĂrĂł statisztika egyĂ©rtelműen azt mutatta, hogy a tisztĂtási folyamat vĂ©gĂ©re minden Ă©vjáratban a vizsgált bĂşzaminták átlagos toxinszintje csökkent. Az induktĂv statisztikával pedig azt állapĂtottuk meg, hogy 95%-os valĂłszĂnűsĂ©gi szinten a bĂşzatĂ©telek esetĂ©n igaz is az elĹ‘zĹ‘ megállapĂtás. Vagyis a vizsgált Ă©vjáratokban, ha a tisztĂtási folyamatban az emlĂtett korszerű berendezĂ©seket alkalmazzák malomipari Ĺ‘rlĂ©s elĹ‘tt, csökkenthetĹ‘ a bĂşzatĂ©telek DON-toxin szennyezettsĂ©ge. Abstract: In the course of the research we examined in a technological environment that if we use optical sorting and modern surface cleaning in the mill cleaning process, how does the toxin contamination of wheat samples change. We collected data on harvested wheat grains in three years to determine if the toxin content of corn samples can be reduced by the combined use of Sortex Z optical sorting and Schule Verticone VPC 480 surface cleaning machines. Descriptive statistics clearly showed that at the end of the purification process the average toxin level of the tested wheat samples decreased in every year. And with inductive statistics at 95% probability level, we found that the previous statement is true for wheat lots also. That is, in the case of the examined years in the purification process in which mentioned modern equipments are used, the contamination of the DON toxin of wheat lots can be reduced before milling
Microwave milk pasteurization without food safety risk
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mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin:0cm; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:Calibri;} --> <!--[endif] --> <!--StartFragment--> <div><table style="height: 327px;" border="0" cellspacing="0" cellpadding="0" width="498" align="left"><tbody><tr><td style="padding-top: 3.1pt; padding-right: 0cm; padding-bottom: 3.1pt; padding-left: 0cm;" height="327" align="left" valign="top"><div style="mso-element: para-border-div; border: none; border-bottom: solid windowtext 2.25pt; padding: 0cm 0cm 1.0pt 0cm;"><p class="MsoNormal" style="text-align: justify; text-justify: inter-ideograph; vertical-align: top; border: none; mso-border-bottom-alt: solid windowtext 2.25pt; padding: 0cm; mso-padding-alt: 0cm 0cm 1.0pt 0cm; mso-element: frame; mso-element-frame-width: 498.1pt; mso-element-frame-height: 321.05pt; mso-element-frame-vspace: 3.1pt; mso-element-wrap: around; mso-element-anchor-vertical: page; mso-element-anchor-horizontal: page; mso-element-left: 50.3pt; mso-element-top: 57.8pt; mso-height-rule: exactly;"><span style="font-size: 10pt;" lang="EN-GB">According to nutrition science, milk and milk products are essential food for humans. The primary processing of milk includes its storage, separation, homogenization and the pasteurization process as well. The latter is a kind of heat treatment, which </span><span style="font-size: 10.0pt; mso-ansi-language: EN-GB;" lang="EN-GB">has been used to extend the storage life of food since the late 18th century. Although heat treatment of milk can be achieved through the use of microwave technology, the inhomogeneity of electromagnetic fields leads to an uneven distribution of temperature in the food products, therefore precluding their use in industry. The pasteurization operation is very often Critical Controll Point (CCP) according of food safety systems.</span></p> <p style="margin: 0cm; margin-bottom: .0001pt; text-align: justify; text-justify: inter-ideograph; border: none; mso-border-bottom-alt: solid windowtext 2.25pt; padding: 0cm; mso-padding-alt: 0cm 0cm 1.0pt 0cm; mso-element: frame; mso-element-frame-width: 498.1pt; mso-element-frame-height: 321.05pt; mso-element-frame-vspace: 3.1pt; mso-element-wrap: around; mso-element-anchor-vertical: page; mso-element-anchor-horizontal: page; mso-element-left: 50.3pt; mso-element-top: 57.8pt; mso-height-rule: exactly;"><span style="font-size: 10.0pt; mso-ansi-language: EN-GB;" lang="EN-GB">In recent years our research team has developed continuously operating heat treatment pilot-plant equipment, capable of measuring and contrasting the effects of different heat treatment methods, such as thermostat-controlled water baths and microwave energy, on liquid food products.<span class="MsoHyperlink"> </span>We examined and compared protein, fat and bacterial content in samples of fresh cow milk with heat-treated cow milk samples. In addition, storage experiments were carried out under a microscope and recordings made of fat globules. Our results so far show that the microwave heat treatment is equivalent to the convection manner pasteurization technology, as we found no difference between the heat-treated products.<br /><br /><strong>doi:10.5219/260</strong></span></p></div></td></tr></tbody></table></div> <!--EndFragment--