Improvement of Brewning Wines and Keeping Quality of White Wines with Polyvinylpolypyrrolidone (PVPP)
نویسندگان
چکیده
منابع مشابه
Spectroscopic Analysis of Polyphenols in White Wines
Spectroscopic analysis was used to study the effect of wine processing on phenolic composition. Various classes of phenolic compomtds were detected and characterized by ultraviolet (UV) and Infrared (IR) spectroscopy in white grapes of Sauvignon Blanc and French Colombard, as well as in wines prepared from these grapes. Comb/ned treatment with bentonite, egg albumin and Polycinr AT decreased th...
متن کاملWhite Wines by Color imetr ic Assays
For evaluation of flavonoid phenols in the low concentration range in white table wines, four colorimetric assays have been compared: (a) reaction with Folin-Ciocalteu reagent before and after precipitation of flavonoids in HCI-methanal (FC); (b) reaction with vanillin (VAN); (c) reaction with 4-(dimethylamino)-cinnamaldehyde (DAC); and (d) a rapid browning test at 60°C in oxidative medium (POM...
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در سالهای اخیر،اختلالات کیفیت توان مهمترین موضوع می باشد که محققان زیادی را برای پیدا کردن راه حلی برای حل آن علاقه مند ساخته است.امروزه کیفیت توان در سیستم قدرت برای مراکز صنعتی،تجاری وکاربردهای بیمارستانی مسئله مهمی می باشد.مشکل ولتاژمثل شرایط افت ولتاژواضافه جریان ناشی از اتصال کوتاه مدار یا وقوع خطا در سیستم بیشتر مورد توجه می باشد. برای مطالعه افت ولتاژ واضافه جریان،محققان زیادی کار کرده ...
15 صفحه اولShapley Ranking of Wines*
We suggest a new game-theory-based ranking method for wines, in which the Shapley Value of each wine is computed, and wines are ranked according to their Shapley Values. Judges should find it simpler to use, since they are not required to rank order or grade all the wines, but merely to choose the group of those that they find meritorious. Our ranking method is based on the set of reasonable ax...
متن کاملThe Influence of the Variety, Vineyard, and Vintage on the Romanian White Wines Quality
The wine is one of the most consumed drinks over the world, being subjected to falsification or adulteration regarding the variety, vintage, and geographical region. In this study, the influence of different characteristics of wines (type, production year, and origin) on the total phenolic content, total flavonoids content, antioxidant activity, total sugars content, pH, and 18O/16O isotopic ra...
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ژورنال
عنوان ژورنال: JOURNAL OF THE BREWING SOCIETY OF JAPAN
سال: 1997
ISSN: 0914-7314,2186-4012
DOI: 10.6013/jbrewsocjapan1988.92.472