scholarly journals Ion chromatography in the liqueurs and spirits quality control

2020 ◽  
Vol 210 ◽  
pp. 03001
Author(s):  
Irina Abramova ◽  
Marina Medrish ◽  
Vera Savel'yeva ◽  
Aleksandra Romanova ◽  
Darya Gavrilova

In the presented work, the ionic composition of liqueurs and spirits from different manufacturers was investigated. It was found that the ionic composition of studied samples is represented mainly by cations of sodium, potassium, calcium and magnesium and anions of chlorides, nitrates, phosphates and sulfates, mass concentrations vary within wide limits, which is explained by the rich microelement composition of receptive components, the specifics of alcoholic beverages and the peculiarities of water treatment of various manufacturers. It was revealed that one of the main reasons for the deterioration in the quality of liqueurs and spirits was the increased content of calcium and magnesium. In some samples, on the contrary, the relationship between the cation-anion composition and precipitation was excluded. Thus, the ion chromatography method is an indispensable modern analytical tool in the finished products quality control. Its use allows you to quickly identify and eliminate the causes of precipitation during storage, thereby increasing the efficiency of technochemical quality control of alcoholic beverages.

2011 ◽  
Vol 6 (1) ◽  
pp. 81-85
Author(s):  
Elena Nezalzova

Quality control of alcoholic beverages, coming into the market, is a defining element in preventing the production and supplying of defective products. One of the main criteria for quality control of wine distillates is to estimate their age, and more precisely the period of maturation as the dominant factor in determining the quality of cognacs and, consequently, their market price. On the opinion of majority scientists, one of the main factors, which determines the age of wine distillates, is the content of aromatic aldehydes, mostly vanillin, and their ratio.


Author(s):  
И.В. ОСЕЛЕДЦЕВА ◽  
Р.В. АВАНЕСЬЯНЦ

Проведен анализ перспективных направлений контроля качества бренди и коньячных дистиллятов. Рассмотрены предъявляемые к спиртным напиткам требования действующих на территории ЕС и ЕАЭС нормативных документов. Показано, что эффективность контроля качества бренди может быть достигнута использованием комбинированной схемы исследования продукции, включающей оценку нормируемых дополнительных показателей, характеризующих свойства дистиллятов и вырабатываемых из них бренди. Рассмотрены основные современные методы исследования состава и свойств коньячных дистиллятов и бренди. Отмечены как источники информации о качестве коньячных дистиллятов и бренди профили высших спиртов, органических кислот, летучих эфиров, фурановых и фенольных компонентов. Представлены данные по расчетным критериям контроля качества бренди и коньячных дистиллятов. The analysis of perspective directions of quality control of brandy and cognac distillates is carried out. The requirements of regulatory documents in force on the territory of the EU and the EAEU for alcoholic beverages are considered. It is shown that the effectiveness of quality control of brandy can be achieved by using a combined scheme of product research, including the assessment of normalized additional indicators characterizing the properties of distillates and brandy produced from them. The main modern methods for studying the composition and properties of brandy distillates and brandy are considered. It is shown that one of the most valuable sources of information on the quality of brandy distillates and brandy are the profiles of higher alcohols, organic acids, volatile esters, furan and phenolic components. Data on modern approaches to the selection of additional criteria for quality control of brandy and brandy distillates are given. Data on calculated brandy quality control criteria are presented.


2021 ◽  
Vol 12 (1) ◽  
pp. 19-32
Author(s):  
Putri Elsari Rahmayana ◽  
Humiras Hardi Purba ◽  
Budi Susetyo

Transportation is still a significant problem in Indonesia. Indonesians prefer to use private vehicles for daily mobility purposes because public transportation lacks safety and comfort and has a longer trip duration. This issue causes congestion and air pollution problems. Hence, sustainable railbased public transportation is recommended. Light Rail Transit (LRT) tends to be congestion-free and has a relatively shorter travel time with a large passenger capacity. Most LRT track constructions use the ballastless track. However, this track construction is still new in Indonesia. The research aimed to determine the most important factors in improving ballastless track construction performance on LRT. The research referred to the existing LRT construction in Indonesia using Lean Construction (LC) and Project Quality Management (PQM) approaches. Statistical science approach with SmartPLS software was also used in data processing and modeling the relationship between variables. The research was conducted by distributing questionnaires to determine the most important factors in improving the quality of ballastless tracks with variables and indicators extracted from LC and PQM methods. From five tested hypotheses, only one hypothesis is accepted. Quality control has a positive effect on track quality. It is also found that quality control becomes the most important variable in improving ballastless track quality.


2020 ◽  
Vol 10 ◽  
Author(s):  
Antonio Sánchez Navarro ◽  
Aldara Girona Ruiz ◽  
María José Delgado Iniesta

The electrical conductivity (EC) and ionic composition of the soil solution of a Haplic Calcisol in Campo de Cartagena (Murcia, Spain) were studied <em>in situ</em> for four years in an experimental open-air vegetable plot, together with the relationship between these parameters, the quality of the irrigation water and the management of the plot. The results show that there were very significant fluctuations in these variables during the study period and that these fluctuations depended on the management of the plot and in particular on the irrigation water used. Therefore, for an adequate management of these agro-ecosystems, it is necessary to establish a network of experimental plots <em>in situ</em>, where sensitive indicators of soil degradation are monitored, in our case the EC and the ionic composition of the soil solution. Such indicators are capable of detecting these degradation processes and their relationship with the inappropriate management of this resource.


2018 ◽  
Vol 204 ◽  
pp. 01006
Author(s):  
Fatimah ◽  
M Sayuti ◽  
Elsa Putri Pertiwi

Quality is one of the issues that requires special attention in the operation of a company since it can affect the relationship between producers and consumers as well as reduce the company’s losses. PT. Z is a company that mainly produces Crude Palm Oil (CPO) and Palm Kernel Oil (PKO). The problem that often occurs in this factory is that the quality of processed palm kernel is under the set standard of the company, especially palm kernel products, resulting in a loss for the company indirectly. To minimize the loss, the quality control must be conducted. The purpose of this research is to control the quality of palm kernel by using individual moving range (I-MR) chart. From the research result, it is found that the level of impurities in the palm kernel products still require control because the value was above the company's provision which is ≤ 6 while the research result was > 6.


Processes ◽  
2020 ◽  
Vol 8 (12) ◽  
pp. 1609
Author(s):  
Goreti Botelho ◽  
Ofélia Anjos ◽  
Letícia M. Estevinho ◽  
Ilda Caldeira

Spirits are alcoholic beverages commonly consumed in European countries. Their raw materials are diverse and include fruits, cereals, honey, sugar cane, or grape pomace. The main aim of this work is to present and discuss the source, quality control, and legal limits of methanol in spirits produced using fruit and honey spirits. The impact of the raw material, alcoholic fermentation, and the distillation process and aging process on the characteristics and quality of the final distilled beverage are discussed. In addition, a critical view of the legal aspects related to the volatile composition of these distillates, the origin and presence of methanol, and the techniques used for quantification are also described. The methanol levels found in the different types of spirits are those expected based on the specific raw materials of each and, almost in all studies, respect the legal limits.


2021 ◽  
pp. 20-25
Author(s):  
Михаил Николаевич Елисеев ◽  
Федор Андреевич Неверов ◽  
Ирина Николаевна Грибкова

Статья посвящена вопросу качества ирландских виски, представленных в отечественной розничной сети. Освещен вопрос связи органических соединений зернового сырья, применяемого в технологии виски, и вкусового профиля готовых алкогольных напитков. Приведены результаты исследования органолептических показателей готовых виски, их вкусовые профили, описанные с помощью стандартных дескрипторов для данного вида продукции, а также физико-химические показатели. Выявлены образцы продукции, которые обладают высокими вкусо-ароматическими характеристиками, и это связано с содержанием летучих компонентов образцов. Исследование летучих соединений готовых виски показало их соответствие требованиям нормативной документации Российской Федерации. Анализ полученных количественных характеристик в доверительном интервале р ≥ 0,95 позволил выявить соотношения 3-метилбутанол : 1-пропанол : изобутанол : 2-метилбутанол в качестве маркера принадлежности виски к определенному сроку выдержки - от 3 до 8 лет. Данный факт позволит разработать методы для определения аутентичности и фальсификации виски при проведении дальнейших исследований. The article is devoted to the issue of the quality of Irish whiskey presented in the domestic retail network. The issue of the relationship between grain raw material organic compounds used in whiskey technology and the taste profile of finished alcoholic beverages is discussed. The study results of finished whiskey organoleptic indicators, their taste profiles, described using standard descriptors for this type of product, as well as physical and chemical indicators are presented. The product samples have been identified that have high taste and aroma characteristics and this is due to the samples volatile components content. The finished whiskey volatile compound study showed their compliance with the requirements of the regulatory documents of the Russian Federation. The analysis of the obtained quantitative characteristics in the confidence interval of p ≥ 0.95 made it possible to reveal the ratio of 3-methylbutanol : 1-propanol : isobutanol : 2-methylbutanol as a marker of whiskey belonging to a certain aging period - from 3 to 8 years. This fact will allow the development of methods for determining the authenticity and falsification of whiskey in further research.


2016 ◽  
Vol 30 (2) ◽  
pp. 76-86 ◽  
Author(s):  
Judith Meessen ◽  
Verena Mainz ◽  
Siegfried Gauggel ◽  
Eftychia Volz-Sidiropoulou ◽  
Stefan Sütterlin ◽  
...  

Abstract. Recently, Garfinkel and Critchley (2013) proposed to distinguish between three facets of interoception: interoceptive sensibility, interoceptive accuracy, and interoceptive awareness. This pilot study investigated how these facets interrelate to each other and whether interoceptive awareness is related to the metacognitive awareness of memory performance. A sample of 24 healthy students completed a heartbeat perception task (HPT) and a memory task. Judgments of confidence were requested for each task. Participants filled in questionnaires assessing interoceptive sensibility, depression, anxiety, and socio-demographic characteristics. The three facets of interoception were found to be uncorrelated and interoceptive awareness was not related to metacognitive awareness of memory performance. Whereas memory performance was significantly related to metamemory awareness, interoceptive accuracy (HPT) and interoceptive awareness were not correlated. Results suggest that future research on interoception should assess all facets of interoception in order to capture the multifaceted quality of the construct.


2002 ◽  
Author(s):  
R. Arnold ◽  
A. V. Ranchor ◽  
N. H. T. ten Hacken ◽  
G. H. Koeter ◽  
V. Otten ◽  
...  

2020 ◽  
Vol 29 (12) ◽  
pp. 52-58
Author(s):  
E.P. Meleshkina ◽  
◽  
S.N. Kolomiets ◽  
A.S. Cheskidova ◽  
◽  
...  

Objectively and reliably determined indicators of rheological properties of the dough were identified using the alveograph device to create a system of classifications of wheat and flour from it for the intended purpose in the future. The analysis of the relationship of standardized quality indicators, as well as newly developed indicators for identifying them, differentiating the quality of wheat flour for the intended purpose, i.e. for finished products. To do this, we use mathematical statistics methods.


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