The Journal Vitae works under the Open Access license, and the published manuscripts remain available for the public, both on the Journal's website and in databases, under the Creative Commons license, "Noncommercial Attribution" and "Share alike" systems, adopted in Colombia. 2006 June 74(3): 416-423.Ĭopyright Notice and Open Access Statement Oak acorn, polyphenols and antioxidant activity in functional food. Rakić S, Povrenović D, Tešević V, Simić M, Maletić R. New York, USA: Springer Science+Business Media 2016. In: Sánchez-Mata MdeC, Tardío J, Editors. Nutritional ethnobotany in Europe: From emergency foods to healthy folk cuisines and contemporary foraging trends. Traditional component of the Mediterranean gastronomical folklore). Nutritional characterization of acorn flour (a Silva S, Costa EM, Borges A, Carvalho AP, Monteiro MJ, Pintado MME. Acorn bread: A traditional food of the past in Sardinia (Italy). Ethnopharmacobotanical remarks on the Province of Chieti town (Abruzzo, Central Italy). The influence of acorn flour on rheological properties of gluten-free dough and physical characteristics of the bread. Korus J, Witczak M, Ziobro R, Juszczak L. Acorn cake during the Holocene: experimental reconstruction of its preparation in the western Pyrenees, Iberia. 2016 Feb 43(2): 279-288.Īyerdi M, Echazarreta-Gallego A, de Francisco-Rodríguez S, Hernández HH, Sarasketa-Gartzia I. Geographical variation in the importance of water and energy for oak diversity. Xu X, Wang Z, Rahbek C, Sanders NJ, Fang J. Management of oak forests: striking a balance between timber production, biodiversity and cultural services. Löf M, Brunet J, Filyushkina A, Lindbladh M, Skovsgaard JP, Felton A. Berlin, Heidelberg: Springer-Verlag 2006. Ecology and Conservation of Neotropical Montane Oak Forests. Global and neotropical distribution and diversity of Oak (genus Quercus) and Oak Forests. More studies are needed in order to improve the taste quality of this coffee substitute. Conclusions: The results of molecular sensory approach confirmed that this product resembles coffee however, QDA analyses showed the presence of undesirable taste. Odour attributes characterized by QDA, were in agreement with those detected by GC-O (Gas Chromatography coupled to Olfactometry), but some off-taste notes were detected. The major volatile compounds were furfural, 5-methyl furfural, furfuryl alcohol, and 3-hydroxy-2-butanone, some of them related to the sugar breakdown by heating. Ketones, aldehydes, aliphatic acids, furanic alcohols and pyrazines were identified as relevant for this coffee substitute beverage. Results: Nineteen compounds were identified, showing acid, buttery/caramel, smoke/roasted, and fruity odour notes, which are common to those of roasted coffee. Sensorial analyses of this beverage were done by QDA (Quantitative Descriptive Analysis). Methods: The odour-active volatiles of roasted oak acorn powder were extracted by SDE and analyzed by GC/MS and olfactory analyses (GC/O). Objective: To identify the odour-active volatiles of the powder derived from roasted acorns of Quercus humboldtii and to perform a quantitative descriptive analysis (QDA) of its appearance, odour, and taste. Good luck and I so hope this makes sense and I didn't steer you wrong.SDE, QDA, odour-active volatiles, gas chromatography, food chemistry Abstractīackground: Oak acorns are roasted and grounded to produce a powder that is used to prepare a coffee substitute beverage. For instance, I've used the QuickTime format with PNG compression with great success (FLA format works, too).Īdditionally, be sure and test that the saved animation actually does indeed have transparency by opening it in your video editing software (or in PShop CS3 Extended) because if you only preview the animation in QT, you may mistakenly assume there is no transparency when you see a solid background. Therefore, continue to set your camera's bkgrnd color opacity to zero as you've been doing, however, also make sure upon saving your rendered animation that you also choose a file format that supports transparency (ie. so here goes:īeing that you're already able to get transparency on your single images, it sounds like you already know how to adjust the opacity settings of your camera's background color to zero in order to acheive transparency. ![]() ![]() However, I've been in your shoes just a mere two months ago. First off, I can't believe that I actually have the audacity to attempt to help you as I'm as green as they come in the 3D realm.
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