scholarly journals Fractal Behavior in the Clarification Process of Cane Sugar Production

2013 ◽  
Vol 2013 ◽  
pp. 1-9 ◽  
Author(s):  
Xiaomo Yu ◽  
Junke Ye ◽  
Jing Hu ◽  
Xiaoping Liao ◽  
Jianbo Gao

Cane sugar production is an important industrial process. One of the most important steps in cane sugar production is the clarification process, which provides high-quality, concentrated sugar syrup crystal for further processing. To gain fundamental understanding of the physical and chemical processes associated with the clarification process and help design better approaches to improve the clarification of the mixed juice, we explore the fractal behavior of the variables pertinent to the clarification process. We show that the major variables in this key process all show persistent long-range correlations, for time scales up to at least a few days. Persistent long-range correlations amount to unilateral deviations from a preset target. This means that when the process is in a desired mode such that the target variables, color of the produced sugar and its clarity degree, both satisfy preset conditions, they will remain so for a long period of time. However, adversity could happen, in the sense that when they do not satisfy the requirements, the adverse situation may last quite long. These findings have to be explicitly accounted for when designing active controlling strategies to improve the quality of the produced sugar.

2021 ◽  
pp. 19-23
Author(s):  
Елена Васильевна Дубинина ◽  
Людмила Николаевна Крикунова ◽  
Владимир Александрович Трофимченко ◽  
Кантемир Витальевич Небежев

На качество фруктовых дистиллятов оказывают существенное влияние различные физико-химические процессы, проходящие в дистилляционной установке под действием высокой температуры. В зависимости от особенностей биохимического состава для каждого вида сырья необходимо подбирать конкретные режимы дистилляции, обеспечивающие получение дистиллята с высокими органолептическими и физико-химическими характеристиками. В связи с этим цель работы состояла в исследовании влияния режимных параметров фракционированной дистилляции сброженной кизиловой мезги на распределение летучих компонентов по фракциям. В качестве объектов исследования в работе использовали фракции, полученные в процессе дистилляции сброженной кизиловой мезги на установке прямой сгонки «Kothe Distillationstechnik» (Германия). Экспериментально установлено, что повышение скорости при дистилляции сброженной кизиловой мезги приводит к увеличению объема отбираемой головной фракции, при одновременном снижении ее крепости. Показано, что изменение скорости дистилляции приводит к изменению характера перехода основных летучих компонентов в дистиллят и распределения их по фракциям. Изучена динамика перехода летучих компонентов в дистиллят при различных режимах работы дистилляционной установки - без задержки флегмы (обычный режим) и с задержкой флегмы на нижней тарелке укрепляющей колонны. Проведенные исследования показали, что при условии медленной дистилляции со скоростью не более 5,5 см3/мин в средние фракции переходит 82-85% компонентов энантового эфира, а содержание ацетальдегида снижается на 10-12% по сравнению с быстрой дистилляцией. Показано, что применение задержки флегмы на нижней тарелке укрепляющей колонны дистилляционной установки также способствует снижению перехода в кизиловый дистиллят ацетальдегида и этилацетата, и к сокращению потерь компонентов энантового эфира с головной и хвостовой фракциями. The quality of fruit distillates is significantly affected by various physical and chemical processes that take place in the distillation unit under the influence of high temperature. Depending on the characteristics of the biochemical composition for each type of raw material, it is necessary to select specific distillation modes that ensure the production of distillate with high organoleptic and physico-chemical characteristics. In this regard, the aim of the work was to study the influence of the regime parameters of fractionated distillation of fermented Cornel pulp on the distribution of volatile components by fractions. The fractions obtained during the distillation of fermented Cornel pulp at the direct distillation unit «Kothe Distillationstechnik» (Germany), were used as the objects of research. It is experimentally established that an increase in the speed during distillation of fermented Cornel pulp leads to an increase in the volume of the selected head fraction, while reducing its strength. It is shown that a change in the distillation rate leads to a change in the nature of the transition of the main volatile components to the distillate and their distribution by fractions. The dynamics of the transition of volatile components to distillate under different operating modes of the distillation unit - without phlegm delay (normal mode) and with phlegm delay on the lower plate of the reinforcing column is studied. Studies have shown that under the condition of slow distillation at a speed of no more than 5.5 cm3/min, 82-85% of the enantium ether components pass into the medium fractions, and the content of acetaldehyde decreases by 10-12% compared to fast distillation. It is shown that the use of phlegm delay on the lower plate of the strengthening column of the distillation unit also helps to reduce the transition to the Cornel distillate of acetaldehyde and ethyl acetate, and to reduce the loss of the components of the enantium ether with the head and tail fractions.


2016 ◽  
Vol 10 (2) ◽  
Author(s):  
I. R. Belenkaya ◽  
Ya. A. Golinskaya

The article analyses the candied fruit market in Ukraine and describes the main technological operations pertainingto processing of non-traditional candied products – celery and parsnip roots. Darkening of the roots surface caused bythe enzyme oxidation is one of the problems arising when processing white roots, which leads to worse marketable conditionof the product. To prevent darkening, the developed technology provides for soaking raw material in 1% citric acid solutionimmediately after peeling. To improve the diffusion and osmotic processes and to soften roots before boiling in sugar syrup,the steam blanching has been applied. The constructed Gantt diagram proves that the developed technology can shorten thecandied fruit cooking period. The biochemical indicators of the obtained new products have been studied. It was establishedthat the candied fruit possess the appropriate physical and chemical indicators and original organoleptic properties resulting ina demand by consumers. The results of the taste evaluation of the experimental specimen confirmed a high quality of the products.


Author(s):  
V. M. Shumyacher ◽  
S. A. Kryukov ◽  
N. V. Baydakova

One of the most important aspects of improving the quality of abrasive treatment is the improvement of the lubricating and cooling liquids used. The article describes the mechanism of processes occurring in the circle–blank contact, determined from the position of physicochemical mechanics of materials. Data on influence of rheological characteristics of “LPG + dispersion product” systems and physical and chemical properties of LPG on cutting properties of abrasive tool are presented. The behavior of this colloidal system by viscosity is described. Dependencies characterizing coagulation of metal particles between each other and with cutting profile of grinding wheel in “tool–workpiece” contact under conditions of turbulent flow of LPG and dispersion products are obtained.


Food Research ◽  
2020 ◽  
Vol 4 (3) ◽  
pp. 772-779 ◽  
Author(s):  
I.S.M. Purbowati ◽  
Karseno Karseno ◽  
A. Maksum

Roselle (Hibiscus sabdariffa) tea was a phenolic acid and anthocyanin enriched-functional drink. The high antioxidant content of roselle tea benefits to prevent degenerative diseases, such as diabetes. The acidity flavor was due to the high content of phenolic compounds and anthocyanins. This led to the addition of low glycemic index sugar. Therefore, it is necessary to understand the formulation between the variation of flower petals and sugar type’s addition. The purpose of this study was to find out the best effect of petal flowers and sugar type addition towards physical, chemical and sensory quality of roselle tea. The research design used in this study was Complete Randomized trial with 2 (two) factors and 3 replications. The first factor comprises between flower petals addition (R) towards water (w/v) of 1:100 (R1), 4:100 (R2), 7:100 (R3), and 10:100 (R4). The second factor was sugar type (G): cane sugar (G1) which comprises coconut sugar (G2) and corn sugar (G3). Observed variables in this study were physical and chemical variables (color, total phenol, anthocyanin and pH level), and sensory variable (acidity and favorable level). The best combination was R4G1 with characteristics of anthocyanins of 5.25 mg/100 mL; phenol of 24.35 mg/100 mL; pH of 2.6; L amounted to 24.70


1991 ◽  
Vol 223 ◽  
Author(s):  
Hans P. Zappe ◽  
Gudrun Kaufel

ABSTRACTThe effect of numerous plasma reative ion etch and physical milling processes on the electrical behavior of GaAs bulk substrates has been investigated by means of electric microwave absorption. It was seen that plasma treatments at quite low energies may significantly affect the electrical quality of the etched semiconductor. Predominantly physical plasma etchants (Ar) were seen to create significant damage at very low energies. Chemical processes (involving Cl or F), while somewhat less pernicious, also gave rise to electrical substrate damage, the effect greater for hydrogenic ambients. Whereas rapid thermal anneal treatments tend to worsen the electrical integrity, some substrates respond positively to long-time high temperature anneal steps.


Author(s):  
S.B. Kudryashev ◽  
◽  
N.S. Assev ◽  
R.D. Belashov ◽  
V.A. Naumenko ◽  
...  

The article is devoted to solving one of the most important problems of the development of the sugar industry in Russia – the modernization of sugar production processes. Today, sugar production is actively being modernized, shifting most of its processes to the path of avomatization and optimization to improve the quality of products. This article describes one of the main ways to obtain information about the concentration of sucrose in syrup in the production of sugar.


2020 ◽  
pp. 161-165
Author(s):  
Bertram de Crom ◽  
Jasper Scholten ◽  
Janjoris van Diepen

To get more insight in the environmental performance of the Suiker Unie beet sugar, Blonk Consultants performed a comparative Life Cycle Assessment (LCA) study on beet sugar, cane sugar and glucose syrup. The system boundaries of the sugar life cycle are set from cradle to regional storage at the Dutch market. For this study 8 different scenarios were evaluated. The first scenario is the actual sugar production at Suiker Unie. Scenario 2 until 7 are different cane sugar scenarios (different countries of origin, surplus electricity production and pre-harvest burning of leaves are considered). Scenario 8 concerns the glucose syrup scenario. An important factor in the environmental impact of 1kg of sugar is the sugar yield per ha. Total sugar yield per ha differs from 9t/ha sugar for sugarcane to 15t/ha sugar for sugar beet (in 2017). Main conclusion is that the production of beet sugar at Suiker Unie has in general a lower impact on climate change, fine particulate matter, land use and water consumption, compared to cane sugar production (in Brazil and India) and glucose syrup. The impact of cane sugar production on climate change and water consumption is highly dependent on the country of origin, especially when land use change is taken into account. The environmental impact of sugar production is highly dependent on the co-production of bioenergy, both for beet and cane sugar.


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