Production and stabilization of hazelnut oil with natural and synthetic antioxidants

Lješnjakovo ulje je zlatno-žute boje sa visokim udjelom oleinske kiseline te se svrstava u ulja oleinskog tipa. Cilj ovog istraživanja bio je ispitati utjecaj procesnih parametara prešanja na iskorištenje lješnjakovog ulja. Ispitan je utjecaj temperature zagrijavanja glave preše, frekvencije elektromotora i veličine otvora za izlaz pogače na iskorištenje ulja. Rezultati istraživanja pokazali su da je najbolje iskorištenje ulja postignuto primjenom sljedećih procesnih parametara: otvor otvora preše 8 mm, frekvencija elektromotora 20 Hz te temperatura 105 °C. Hladno prešanom ulju ispitan je utjecaj dodatka antioksidansa na oksidacijsku stabilnost primjenom testa održivosti na 98 °C. Korišteni su prirodni antioksidansi ekstrakt ružmarina, ekstrakt kadulje, α-tokoferol te sintetski antioksidans oktil galat. Najbolje antioksidacijsko djelovanje imao je ekstrakt ružmarina, a neznatno manje antioksidacijsko djelovanje pokazao je i sintetski antioksidans oktil galat.Hazelnut oil has yellow colour with shades of gold colour. This oil is enriched with oleic acid and because of that this oil is part of the oleic type of oil. The aim of this research was to analyze the effect of processing parameters on the amount of produced hazelnut oil during the process of pressing. The influence of temperature head presses, frequency and nozzle size on oil yield and quality was examined. The results showed that the most amount of oil is produced using following parameters: nozzle diametar 8 mm, electromotor frequency 20 Hz, temperature 105°C. The oxidative stability was monitored using the test of sustainability on 98°C. Natural antioxidants such as rosemary extract, sage extract, α- tocopherol and synthetic antioxidant octyl gallate were used. The best antioxidant effect had a rosemary extract, and a slightly less antioxidant effect was also obtained by synthetic antioxidant octyl-galate

Production and stabilization of hazelnut oil with natural and synthetic antioxidants

Lješnjakovo ulje je zlatno-žute boje sa visokim udjelom oleinske kiseline te se svrstava u ulja oleinskog tipa. Cilj ovog istraživanja bio je ispitati utjecaj procesnih parametara prešanja na iskorištenje lješnjakovog ulja. Ispitan je utjecaj temperature zagrijavanja glave preše, frekvencije elektromotora i veličine otvora za izlaz pogače na iskorištenje ulja. Rezultati istraživanja pokazali su da je najbolje iskorištenje ulja postignuto primjenom sljedećih procesnih parametara: otvor otvora preše 8 mm, frekvencija elektromotora 20 Hz te temperatura 105 °C. Hladno prešanom ulju ispitan je utjecaj dodatka antioksidansa na oksidacijsku stabilnost primjenom testa održivosti na 98 °C. Korišteni su prirodni antioksidansi ekstrakt ružmarina, ekstrakt kadulje, α-tokoferol te sintetski antioksidans oktil galat. Najbolje antioksidacijsko djelovanje imao je ekstrakt ružmarina, a neznatno manje antioksidacijsko djelovanje pokazao je i sintetski antioksidans oktil galat.Hazelnut oil has yellow colour with shades of gold colour. This oil is enriched with oleic acid and because of that this oil is part of the oleic type of oil. The aim of this research was to analyze the effect of processing parameters on the amount of produced hazelnut oil during the process of pressing. The influence of temperature head presses, frequency and nozzle size on oil yield and quality was examined. The results showed that the most amount of oil is produced using following parameters: nozzle diametar 8 mm, electromotor frequency 20 Hz, temperature 105°C. The oxidative stability was monitored using the test of sustainability on 98°C. Natural antioxidants such as rosemary extract, sage extract, α- tocopherol and synthetic antioxidant octyl gallate were used. The best antioxidant effect had a rosemary extract, and a slightly less antioxidant effect was also obtained by synthetic antioxidant octyl-galate

The influence of homogenisation and ingredients on the rheological properties of salad mayonnaise with the addition of mango pulp

Reološka svojstva majoneze su vrlo bitna kod izbora recepture, procesa kondicioniranja i kontrole kvalitete. U ovom radu ispitivan je utjecaj procesa homogenizacije i sastojaka na reološka svojstva salatne majoneze s dodatkom pulpe manga. Ispitivani sastojci su ugljikohidrati (glukoza, saharoza, maltodekstrin), žumanjak jajeta (svježi, pasterizirani, cijelo jaje u prahu) i mliječna komponenta (punomasno mlijeko u prahu, obrano mlijeko u prahu, sirutka u prahu). Proces homogenizacije majoneze proveden je sustavom rotor-stator Tip 1 i Tip 2 pri brzini rotora 10 000 o/min u vremenu od tri minute. Mjerenje reoloških svojstava svježe proizvedene majoneze provedeno je pri temperaturi od 25 ˚C na rotacijskom viskozimetru s koncentričnim cilindrima. Iz dobivenih eksperimentalnih podataka izračunati su reološki parametri: koeficijent konzistencije, prividna viskoznost i indeks tečenja. Rezultati istraživanja pokazuju da proces homogenizacije i sastav (mliječna komponenta, vrsta ugljikohidrata i žumanjka) utječu na reološka svojstva salatne majoneze s dodatkom pulpe manga. Veća prividna viskoznost i konzistencija majoneze postiže se dodatkom maltodekstrina, punomasnog mlijeka u prahu, cijelog jajeta u prahu i homogenizacijom kod brzine rotora 15 000 o/min tijekom 3 minute.The rheological properties of mayonnaise are very important for the choice of formula, process conditions and quality control. In this paper, the influence of homogenization process and ingredients on the rheological properties of salad mayonnaise with the addition of mango pulp was examined. The tested ingredients were carbohydrate (glucose, sucrose, maltodextrin), egg yolk (fresh, pasteurized, whole egg powder) and milk component (whole milk powder, skimmed milk powder, whey powder). The homogenization process of mayonnaise was carried out using a rotor-stator system Type 1 and Type 2 at a rotor speed 10000 rpm for a period of three minutes. The rheological measurements were performed on a rotating viscometer with concentric cylinders at 25 °C, and the rheological parameters, apparent viscosity, consistency coefficient and flow behaviour index have been calculated. The results show that the homogenization process and ingredients (milk component, types of carbohydrates and egg yolk) influence the rheological properties of salad mayonnaise with the addition of mango pulp. The higher apparent viscosity and consistency of mayonnaise was achieved with the addition of maltodextrin, whole milk powder and whole egg powder and homogenization at a rotor speed of 15.000 rpm for 3 minutes

With food to health : proceedings of the 10th International scientific and professional conference

Proceedings contains 13 original scientific papers, 10 professional papers and 2 review papers which were presented at "10th International Scientific and Professional Conference WITH FOOD TO HEALTH", organised in following sections: Nutrition, Dietetics and diet therapy, Functional food and food supplemnents, Food safety, Food analysis, Production of safe food and food with added nutritional value

Surgical treatment of the prostate cancer

Karcinom prostate je najčešća maligna bolest među muškarcima u razvijenim zemljama, a druga prema mortalitetu. Među muškarcima starije životne dobi predstavlja jedan od vodećih javnozdravstvenih problema. U Hrvatskoj je drugi po učestalosti sa 18% i drugi uzrok smrtnosti muške populacije oboljele od karcinoma. Pacijenti najčešće niti ne znaju da imaju karcinom jer nemaju nikakve simptome. Dijagnostičke metode koje su dovele do sve češćeg otkrivanja karcinoma su: prostata specifični antigen u serumu, digitorektalni pregled i transrektalnim ultrazvukom vođena biopsija prostate. Biopsija je najbolja metoda, s obzirom da otkriva diferenciranost karcinoma i stupanj proširenosti bolesti. Pri liječenju lokaliziranog karcinoma u obzir dolaze konzervativne metoda i operativni postupak odnosno radikalna prostatektomija. U konzervativne metode ubrajamo aktivni nadzor, hormonsku terapiju i radioterapiju. Unatoč mogućnostima koje se pružaju, radikalna prostatektomija i dalje se smatra zlatnim standardom liječenja karcinoma prostate. Tijekom operacije uklanja se prostata, sjemeni mjehurići i limfni čvorovi. Iako su rezultati u vidu kontrole bolesti bolji nego kod konzervativnih metoda, inkontinencija i impotencija su česte specifične komplikacije. Zato je važan razvoj prostatektomije uz očuvanje neurovaskularnog snopa čime se uklanja tumor i održava neurovaskularni snop. Laparoskopska i robotska radikalna prostatektomija su minimalno invazivne metode kod kojih je smanjen gubitak krvi, kraći postoperativni oporavak manju bol i ožiljak. Postotak komplikacija je najveći kod laparoskopske, a najmanji kod robotske laparoskopske prostatektomije. Dulje je vrijeme potrebno za savladavanje laparoskopske tehnike, ali je bolja za pacijente, a rezultati su slični onima kod klasičnog pristupa.Prostate cancer is the most common malignant disease among men in developed countries and second in mortality. Among older men prostate cancer is one of the leading public health problems. In Croatia, it is second most frequent cancer with incidence of 18% and the second cause of the death of the male population suffering from cancer. In most cases, patients are not aware they have cancer because they have no symptoms. Diagnostic methods that have led to more frequent detection of cancer include: prostate specific antigen in serum, digitorectal screening and transrectal ultrasound-guided prostate biopsy. Biopsy is the best method, as it detects cancer differentiation and the extent of the disease's spread. In the treatment of localized cancer, conservative methods and operative procedures, or radical prostatectomy, come into consideration. Conservative methods include active monitoring, hormone therapy and radiotherapy. Despite the opportunities provided, radical prostatectomy continues to be considered the golden standard for prostate cancer treatment. During surgery, prostate, seminal vesicles and lymph nodes are removed. Although results in disease control are better than in conservative methods, incontinence and impotence are often specific complications. Therefore, an important improvement is prostatectomy with the preservation of the neurovascular bundle thereby removing the tumor and maintaining the neurovascular bundle. Laparoscopic and robotic radical prostatectomy are minimally invasive methods that reduce blood loss, postoperative recovery, pain and scar. The percentage of complications is greatest in laparoscopic and the smallest in robotic laparoscopic prostatectomy. Longer time is needed to overcome laparoscopic technique, but it is better for patients, and the results are similar to of classic approach

Surgical treatment of the prostate cancer

Karcinom prostate je najčešća maligna bolest među muškarcima u razvijenim zemljama, a druga prema mortalitetu. Među muškarcima starije životne dobi predstavlja jedan od vodećih javnozdravstvenih problema. U Hrvatskoj je drugi po učestalosti sa 18% i drugi uzrok smrtnosti muške populacije oboljele od karcinoma. Pacijenti najčešće niti ne znaju da imaju karcinom jer nemaju nikakve simptome. Dijagnostičke metode koje su dovele do sve češćeg otkrivanja karcinoma su: prostata specifični antigen u serumu, digitorektalni pregled i transrektalnim ultrazvukom vođena biopsija prostate. Biopsija je najbolja metoda, s obzirom da otkriva diferenciranost karcinoma i stupanj proširenosti bolesti. Pri liječenju lokaliziranog karcinoma u obzir dolaze konzervativne metoda i operativni postupak odnosno radikalna prostatektomija. U konzervativne metode ubrajamo aktivni nadzor, hormonsku terapiju i radioterapiju. Unatoč mogućnostima koje se pružaju, radikalna prostatektomija i dalje se smatra zlatnim standardom liječenja karcinoma prostate. Tijekom operacije uklanja se prostata, sjemeni mjehurići i limfni čvorovi. Iako su rezultati u vidu kontrole bolesti bolji nego kod konzervativnih metoda, inkontinencija i impotencija su česte specifične komplikacije. Zato je važan razvoj prostatektomije uz očuvanje neurovaskularnog snopa čime se uklanja tumor i održava neurovaskularni snop. Laparoskopska i robotska radikalna prostatektomija su minimalno invazivne metode kod kojih je smanjen gubitak krvi, kraći postoperativni oporavak manju bol i ožiljak. Postotak komplikacija je najveći kod laparoskopske, a najmanji kod robotske laparoskopske prostatektomije. Dulje je vrijeme potrebno za savladavanje laparoskopske tehnike, ali je bolja za pacijente, a rezultati su slični onima kod klasičnog pristupa.Prostate cancer is the most common malignant disease among men in developed countries and second in mortality. Among older men prostate cancer is one of the leading public health problems. In Croatia, it is second most frequent cancer with incidence of 18% and the second cause of the death of the male population suffering from cancer. In most cases, patients are not aware they have cancer because they have no symptoms. Diagnostic methods that have led to more frequent detection of cancer include: prostate specific antigen in serum, digitorectal screening and transrectal ultrasound-guided prostate biopsy. Biopsy is the best method, as it detects cancer differentiation and the extent of the disease's spread. In the treatment of localized cancer, conservative methods and operative procedures, or radical prostatectomy, come into consideration. Conservative methods include active monitoring, hormone therapy and radiotherapy. Despite the opportunities provided, radical prostatectomy continues to be considered the golden standard for prostate cancer treatment. During surgery, prostate, seminal vesicles and lymph nodes are removed. Although results in disease control are better than in conservative methods, incontinence and impotence are often specific complications. Therefore, an important improvement is prostatectomy with the preservation of the neurovascular bundle thereby removing the tumor and maintaining the neurovascular bundle. Laparoscopic and robotic radical prostatectomy are minimally invasive methods that reduce blood loss, postoperative recovery, pain and scar. The percentage of complications is greatest in laparoscopic and the smallest in robotic laparoscopic prostatectomy. Longer time is needed to overcome laparoscopic technique, but it is better for patients, and the results are similar to of classic approach

Bétheny - prés Reims

https://digital.sandiego.edu/pcalsace/1198/thumbnail.jp

Surgical treatment of the prostate cancer

Karcinom prostate je najčešća maligna bolest među muškarcima u razvijenim zemljama, a druga prema mortalitetu. Među muškarcima starije životne dobi predstavlja jedan od vodećih javnozdravstvenih problema. U Hrvatskoj je drugi po učestalosti sa 18% i drugi uzrok smrtnosti muške populacije oboljele od karcinoma. Pacijenti najčešće niti ne znaju da imaju karcinom jer nemaju nikakve simptome. Dijagnostičke metode koje su dovele do sve češćeg otkrivanja karcinoma su: prostata specifični antigen u serumu, digitorektalni pregled i transrektalnim ultrazvukom vođena biopsija prostate. Biopsija je najbolja metoda, s obzirom da otkriva diferenciranost karcinoma i stupanj proširenosti bolesti. Pri liječenju lokaliziranog karcinoma u obzir dolaze konzervativne metoda i operativni postupak odnosno radikalna prostatektomija. U konzervativne metode ubrajamo aktivni nadzor, hormonsku terapiju i radioterapiju. Unatoč mogućnostima koje se pružaju, radikalna prostatektomija i dalje se smatra zlatnim standardom liječenja karcinoma prostate. Tijekom operacije uklanja se prostata, sjemeni mjehurići i limfni čvorovi. Iako su rezultati u vidu kontrole bolesti bolji nego kod konzervativnih metoda, inkontinencija i impotencija su česte specifične komplikacije. Zato je važan razvoj prostatektomije uz očuvanje neurovaskularnog snopa čime se uklanja tumor i održava neurovaskularni snop. Laparoskopska i robotska radikalna prostatektomija su minimalno invazivne metode kod kojih je smanjen gubitak krvi, kraći postoperativni oporavak manju bol i ožiljak. Postotak komplikacija je najveći kod laparoskopske, a najmanji kod robotske laparoskopske prostatektomije. Dulje je vrijeme potrebno za savladavanje laparoskopske tehnike, ali je bolja za pacijente, a rezultati su slični onima kod klasičnog pristupa.Prostate cancer is the most common malignant disease among men in developed countries and second in mortality. Among older men prostate cancer is one of the leading public health problems. In Croatia, it is second most frequent cancer with incidence of 18% and the second cause of the death of the male population suffering from cancer. In most cases, patients are not aware they have cancer because they have no symptoms. Diagnostic methods that have led to more frequent detection of cancer include: prostate specific antigen in serum, digitorectal screening and transrectal ultrasound-guided prostate biopsy. Biopsy is the best method, as it detects cancer differentiation and the extent of the disease's spread. In the treatment of localized cancer, conservative methods and operative procedures, or radical prostatectomy, come into consideration. Conservative methods include active monitoring, hormone therapy and radiotherapy. Despite the opportunities provided, radical prostatectomy continues to be considered the golden standard for prostate cancer treatment. During surgery, prostate, seminal vesicles and lymph nodes are removed. Although results in disease control are better than in conservative methods, incontinence and impotence are often specific complications. Therefore, an important improvement is prostatectomy with the preservation of the neurovascular bundle thereby removing the tumor and maintaining the neurovascular bundle. Laparoscopic and robotic radical prostatectomy are minimally invasive methods that reduce blood loss, postoperative recovery, pain and scar. The percentage of complications is greatest in laparoscopic and the smallest in robotic laparoscopic prostatectomy. Longer time is needed to overcome laparoscopic technique, but it is better for patients, and the results are similar to of classic approach

Nacionalni repozitorijum za obrazovanje u oblasti poljoprivrede – rezultat TEMPUS projekta „izgradnja kapaciteta srpskog obrazovanja u oblasti poljoprivrede radi povezivanja sa društvom (CaSA)”

The CaSA project belongs to TEMPUS group, call 2013, programme Structural Measures - Higher Education and Society. National priorities addressed by this project are: Training of non-university teachers; and Development of lifelong learning in the society at large. In the project university teachers from 5 Serbian Universities will be trained in active teaching learning methodology, academic skills and eLearning. They will create courses for knowledge refreshment, professional improvement, and in-service training (Life Long Learning) of teachers of secondary agricultural schools and advisors in Extension services. Project envisages creation of NARA, National Repository for Agricultural Education, aviable at http://arhiva.NARA.ac.rs, a unique on line platform in the region. Courses, classical and on-line will be aviable in the National repository NARA, located at the University of Belgrade.Projekat pripada grupi TEMPUS projekata 2013, oblast Strukturnih mera. Kroz projekat će biti obučeni nastavnici 5 Srpskih Univerziteta koji će kreirati kurseve za inovaciju znanja i profesionalno usavršavanje (LLL) nastavnika srednjih poljoprivrednih škola i savetodvaca poljoprivredne stručne službe. Projekat predviđa stvaranje Nacionalnog Repozitorijuma za poljoprivredno obrazovanje NARA (National Repository for Agricultural Education, dostupan na http://arhiva. NARA.ac.rs), jedinstvene platforme u regionu. Kursevi, klasični i on-line (e-learning) biće dostupni na portalu nacionalnog repozitorijuma, NARA - lociranom na Univerzitetu u Beogradu