Search results for "brew"
showing 10 items of 77 documents
Polycyclic aromatic hydrocarbons (PAHs) in coffee brew samples: analytical method by GC-MS, profile, levels and sources.
2009
Roasting is a crucial step for the production of coffee, as it enables the development of color, aroma, and flavor, which are essential for the characterization of the coffee quality. At the same time, roasting may lead to the formation of not desirable compounds, such as polycyclic aromatic hydrocarbons (PAHs). In this paper, we report a method for PAHs determination in coffee brew, based on saponification and liquid-liquid extraction with small volumes of hexane, with exclusion of further processes of purification since we analyze the extract by gas chromatography with mass spectrometric detectors in the single ion monitoring mode (SIM). The total concentration of the 28 compounds investi…
Salomó Saporta: un mercader judío ante la Inquisición valenciana
2017
La persecución inquisitorial contra los judíos no ha sido un tema abordado sistemáticamente por la historiografía, porque las investigaciones sobre la represión de los tribunales inquisitoriales en el tránsito entre los siglos XV y XVI se han centrado en el grupo judeoconverso. Y si bien es cierto que la Inquisición moderna utilizó algunos procesamientos a hebreos de manera ejemplarizante para resaltar el peligro que representaban para la comunidad cristiana, y que han sido recogidos posteriormente por los investigadores, el caso de Salomó Saporta ha sido estudiado y comentado como un caso aislado. Por esa razón quizás sea el momento de plantear la necesidad de estudiar los mecanismos coerc…
La llamada inscripción de Adoniram y el cementerio judío de Sagunto
1995
At the end of the 15th century a Hebrew inscription on a gravestone found in Sagunto, having been wrongly read, was attributed to Adoniram, a tax collector of Solomon. The discovery aroused a long and excited discussion; many scholars denied its authenticity affirming that it was a literary fiction. But a wrong reading does not imply an epigraphic forgery. In this article the author brings new manuscript sources which confirm the authenticity of the find and show which was the place of the Jewish cemetery in Sagunto. He also tries to reconstruct the original text of the inscription. A finales del siglo XV se encontró en Sagunto una inscripción hebrea sobre una lápida que, por una lectura er…
Beer produced via hydrodynamic cavitation retains higher amounts of xanthohumol and other hops prenylflavonoids
2017
Abstract Some of the most valuable bioactive compounds in beer comes from hops polyphenols, mainly flavonoids, some of which are unique to inflorescences of that flowering plant. Although far from pharmacologically relevant concentrations, low doses of xanthohumol and related prenylflavonoids found in beer contribute to the overall antioxidant activity of the product, as well as to significant chemopreventive action about certain diseases, such as cardiovascular, neurodegenerative, and some cancer types. Hence, the efforts to explore both ingredients and brewing methods aimed at enhancing the concentration of such bioactive compounds. In this study, a novel brewing method assisted by hydrod…
Aerobic granular sludge treating anaerobically pretreated brewery wastewater at different loading rates.
2020
Abstract In this study, three different aerobic granular sludge (AGS) reactors fed with anaerobically pre-treated brewery wastewater were studied. The AGS reactors were operated under different conditions including organic loading rates (OLR) between 0.8 and 4.1 kg COD m−3 d−1, C:N:P ratios (100:10:1 and 100:6:1) and food to microorganism ratios (F/M) between 0.8 ± 0.6 and 1.2 ± 0.5 and 0.9 ± 0.3 kg-TCOD kg-VSS−1d−1. Stable granulation was achieved within two weeks and the size of the granules increased according to the OLR applied. The results indicated that low C:N:P and F/M ratios were favorable to achieve stable aerobic granules in the long term. The carbon removal rate was load-indepen…
Beauvericin degradation during bread and beer making
2013
Abstract Beauvericin (BEA) is a bioactive compound produced by the secondary metabolism of several Fusarium species and known to have various biological activities. This study investigated the degradation of the minor Fusarium mycotoxin BEA present at the concentration of 5 mg/kg in barley and wheat flour during beer and bread making. The influence of the making processes and of the formation of degradation products of BEA were evaluated during the beer and bread making. The concentration of BEA and its evolution during the production processes were determined with the technique of the liquid chromatography tandem mass spectrometry in tandem (LC-MS/MS), whereas the formation of the BEA degr…
Molecular Characterization of New Natural Hybrids of Saccharomyces cerevisiae and S. kudriavzevii in Brewing▿ †
2008
ABSTRACT We analyzed 24 beer strains from different origins by using PCR-restriction fragment length polymorphism analysis of different gene regions, and six new Saccharomyces cerevisiae × Saccharomyces kudriavzevii hybrid strains were found. This is the first time that the presence in brewing of this new type of hybrid has been demonstrated. From the comparative molecular analysis of these natural hybrids with respect to those described in wines, it can be concluded that these originated from at least two hybridization events and that some brewing hybrids share a common origin with wine hybrids. Finally, a reduction of the S. kudriavzevii fraction of the hybrid genomes was observed, but th…
New Approaches to OCR for Early Printed Books
2020
Books printed before 1800 present major problems for OCR. One of the main obstacles is the lack of diversity of historical fonts in training data. The OCR-D project, consisting of book historians and computer scientists, aims to address this deficiency by focussing on three major issues. Our first target was to create a tool that identifies font groups automatically in images of historical documents. We concentrated on Gothic font groups that were commonly used in German texts printed in the 15th and 16th century: the well-known Fraktur and the lesser known Bastarda, Rotunda, Textura und Schwabacher. The tool was trained with 35,000 images and reaches an accuracy level of 98%. It can not on…
Economic utopia of the Torah. Economic concepts of the Hebrew Bible interpreted according to the Rabbinical Literature
2004
Hebrew Bible offers alternative Economic utopia for building Theocratic society. In this paper, various economic concepts and themes are presented, as found in the Hebrew Bible. These economic concepts include taxation, property rights, labor market, social policy, banking, years of Sabbath and Jubilee, and business cycles. Most economic issues of the Bible are found in the texts of Torah, also known as five Books of Moses. These texts are analyzed by using classical Rabbinical commentaries for better insight. Contrary to the modern Economic theory which is based on the assumptions of scarcity of resources and unlimited needs of consumers, Economics of the Torah is based on God’s resources …
Kocioł Ezechiela (Ez 24,1-14) w świetle retoryki hebrajskiej
2021
Kontekstem badań było to, że niektórzy komentatorzy proponują różne struktury badanego tekstu. Celem badań stało się opracowanie struktury, którą zamieścił w tekście starożytny autor natchniony. Do tego posłużyła metoda retoryki hebrajskiej, którą opracował Roland Meynet. Udało się odkryć strukturę badanego tekstu. Jest to konstrukcja paralelna o schemacie: A (w. 1a) – B (w. 4ab) – C (w. 6b) – C’ (w. 9b) – B’ (w. 11abc) – A’ (w. 14a). Wnioski: obraz Boga, jaki wyłania się z Księgi Ezechiela, to Bóg Wszechmogący. Bóg Izraela może wszystko uczynić, nawet Nabuchodonozora uczynić narzędziem karania zarówno Izraela, jak i Egiptu. Ponadto należy nadal prowadzić badania nad retoryką hebrajską w Ks…