Technological beet quality: Alternative predictive model by utilizing the dry substance of beet brei filtrate

2015 ◽  
pp. 685-691
Author(s):  
Walter Hein ◽  
Florian Emerstorfer
Keyword(s):  
Predictive Models ◽  
Sugar Content ◽  
Refractometric Determination ◽  
Technological Quality ◽  
Thick Juice ◽  
The Comparative Study ◽  
Predictive Formulas ◽  
Dry Substance

Due to stagnating thick juice purity in Austria, a project was launched in 2010 in order to compare different predictive models for assessment of the technological quality of sugar beet. Preliminary results, which had been published in 2012, demonstrated that classical predictive formulas for the quality evaluation of stored beets give significantly higher calculated thick juice purities than found under technical conditions. However, formulas which take into account the invert sugar content of beet or are solely based on sugar and refractometric dry substance content of the beet brei filtrate delivered results which were close to the values known under technical conditions. After some basic considerations about the technological beet quality the results from the comparative study of the different predictive models are discussed in which the proposed “refractometer formula” performs very well. These comparisons were carried out using fresh beet material from beet variety trials and beet material that had been collected in Austrian sugar factories throughout the whole campaign in the years 2010–2015, respectively. Eventually, some possibilities are pointed out how to maximize the benefit from information obtained by the refractometric determination of dry substance of beet brei filtrate

Technological beet quality: Alternative predictive model by utilizing the dry substance of beet brei filtrate

2015 ◽  
pp. 685-691
Author(s):  
Walter Hein ◽  
Florian Emerstorfer
Keyword(s):  
Predictive Models ◽  
Sugar Content ◽  
Refractometric Determination ◽  
Technological Quality ◽  
Thick Juice ◽  
The Comparative Study ◽  
Predictive Formulas ◽  
Dry Substance

Due to stagnating thick juice purity in Austria, a project was launched in 2010 in order to compare different predictive models for assessment of the technological quality of sugar beet. Preliminary results, which had been published in 2012, demonstrated that classical predictive formulas for the quality evaluation of stored beets give significantly higher calculated thick juice purities than found under technical conditions. However, formulas which take into account the invert sugar content of beet or are solely based on sugar and refractometric dry substance content of the beet brei filtrate delivered results which were close to the values known under technical conditions. After some basic considerations about the technological beet quality the results from the comparative study of the different predictive models are discussed in which the proposed “refractometer formula” performs very well. These comparisons were carried out using fresh beet material from beet variety trials and beet material that had been collected in Austrian sugar factories throughout the whole campaign in the years 2010–2015, respectively. Eventually, some possibilities are pointed out how to maximize the benefit from information obtained by the refractometric determination of dry substance of beet brei filtrate

Considerations of the technological quality assessment of sugarbeet

2011 ◽  
pp. 85-89 ◽  
Author(s):  
Giorgio Pezzi
Keyword(s):  
Quality Parameters ◽  
Northern Italy ◽  
Glucose Content ◽  
Long Term Storage ◽  
Interesting Correlation ◽  
Technological Quality ◽  
Thick Juice

No real improvement in the technological quality of beet has been recorded over the last 15 years in Northern Italy. Among the possible explanations for the quality stagnation is that the traditional formulae cannot correctly differentiate between sugarbeet varieties which produce thick juice of very high purity. This seems to be connected with the role of potassium. The use of a standard purification procedure gives reliable and accurate data which is immediately comparable with the factory data. Research projects on medium/long term storage are currently being performed by Co.Pro.B., Italy, in cooperation with Syngenta and Beta. Up to now the results have shown that storage of sugarbeet in autumn time in northern Italy is possible provided that suitable varieties and proper handling of the roots are employed. Results obtained in the storage trials are reported. Correlations have been found between quality parameters (purity, color and lime salts) of the purified juice with the glucose content of the raw juice. An interesting correlation is reported between purified juice purity and raw juice purity.

scholarly journals Physicochemical changes in cubiu fruits (Solanum sessiliflorum Dunal) at different ripening stages

2012 ◽  
Vol 32 (2) ◽  
pp. 250-254 ◽  
Author(s):  
Moacir Couto de Andrade Júnior ◽  
Jerusa Souza Andrade
Keyword(s):  
Maximum Level ◽  
Total Carotenoids ◽  
Physicochemical Changes ◽  
Ripening Stages ◽  
Calorie Content ◽  
Weight Variation ◽  
Technological Quality ◽  
Ripe Stage

Cubiu shrubs (Solanum sessiliflorum Dunal) have drawn the attention of researchers for their biological versatility (preferential heliophilous or facultative ombrophilous shrubs), their capacity to grow in upland or lowland areas, and the good technological quality of their fruits for the food industry. The aim of this study was to verify physicochemical changes in cubiu fruits during maturation. The fruits were harvested from the experimental station of olericulture of the Instituto Nacional de Pesquisas da Amazônia (INPA), Brazil. The analyses were performed in whole cubiu fruits (peel, pulp, and placenta) at four traditional ripening stages (green, turning, ripe, and fully ripe) for the determination of weight, moisture, total solids, total carotenoids, proteins, lipids, and ash. Cubiu fruits showed large weight variation, with amodal distribution. The ripe stage was critical to maintain moisture, and from that stage on, water loss became evident. The lipids increased steadily over the four ripening stages, maintaining, however, insignificant calorie content. Total carotenoids, proteins, and ash reached the maximum level at the fully ripe stage. With the exception of weight and moisture, all physicochemical changes exhibited the same general behavior, i.e. they increased as the fruits ripened at the four investigated stages.

scholarly journals Influence of degree of wheat infestation with Fusarium on its technological quality and safety

2011 ◽  
pp. 61-72
Author(s):  
Elizabet Janic-Hajnal ◽  
Aleksandra Torbica ◽  
Jasna Mastilovic
Keyword(s):  
Climatic Conditions ◽  
Wheat Crop ◽  
Quality And Safety ◽  
Safety Control ◽  
Test Elisa ◽  
Upper Limits ◽  
Metabolic Products ◽  
Technological Quality

Climatic conditions prior to wheat harvest 2010 were favorable for the development of field molds. The most important wheat contamination that should be determined is the presence and frequency of grain lots infected with Fusarium. This paper presents the results of content of fusarious kernels found in samples collected from all wheat growing regions of Serbia. Investigations were performed according to the regulations which foresee sensory determination of content of infected kernels. Determined average content of fusarious kernels was 6.01%, varying in range from 0% to 29.65 %. The obtained results, which exceeded the upper limits of permitted contents defined by national and EU regulations, pointed to the need for investigation of presence of Fusarium metabolic products, i.e. mycotoxins (zearalenone (ZEA) and deoxinivalenol (DON)) in wheat. Mycotoxin content was determined in average wheat samples and in wheat samples with increased content of fusarious kernels. Direct enzymatic immunoaffinity test (ELISA) was applied for determination of mycotoxin content. Although high content of fusarious kernels characterizes wheat crop in 2010, the determined quantities of two investigated mycotoxins did not exceed maximal permitted content. Consequences of unfavorable quantity and structure of total impurities in wheat crop in 2010 reflect decreased commercial and technological quality of wheat and point out to the need of necessary wheat safety control.

Technological qualities of defoliated and topped sugar beet

2016 ◽  
pp. 26-35 ◽  
Author(s):  
Christa Hoffmann ◽  
Bernward Märländer
Keyword(s):  
Simulation Model ◽  
Sugar Content ◽  
Lack Of Information ◽  
Crown Tissue ◽  
Flow Through ◽  
Technological Quality ◽  
Thick Juice ◽  
The Impact ◽  
Composition Changes ◽  
White Sugar

It is well known that beet with crown tissue have a higher content of melassigenic nonsugar substances than correctly-topped beet. However, there is a lack of information on the impact of this change on processing. Hence, the objective of this study was to determine the effect of defoliated beet on the different processing steps. Laboratory-scale processing experiments were conducted with defoliated and manually-topped beet from five sites in 2010/11 to 2012/13. Beet brei, raw press juice and thin juice have been analyzed, the subsequent effects have been simulated with a specially developed model. The results show that the beet composition changes increasingly when including a larger proportion of the crown tissue. Consequently, cutting off the first millimeters of the top of the crown will remove the worst part of the beet. Defoliated beet have a poorer technological quality compared to topped beet with a significantly higher content of melassigenic compounds, in particular -aminoN and invert sugar, and a lower pol. sugar content, thus resulting in a lower purity. This effect is similar for all products, beet brei, raw press juice, and thin juice. In thin juice, the effective alkalinity is significantly reduced, while colour and lime salts’ content are increased. Because of the lower quality/purity of defoliated beet more beet will have to be processed to produce the same quantity of white sugar, so the processing campaign will become longer. In the simulation model a lower thick juice purity and a higher molasses purity have been assumed for defoliated beet, as based on juice analysis and technological expectations. The higher content of nonsugars will result in an increased mass flow through the sugar house which will negatively affect the molasses exhaustion. At the same white sugar production, the simulation model calculates higher costs for processing aids and energy, but on the other hand also higher revenues for the additional production of pellets and molasses when processing defoliated beet.

scholarly journals The effect of the method of pruning vines and loading of bushes with shoots on the productivity of the ‘Tsvetochnyi’ grape variety

2021 ◽  
pp. 134-140
Author(s):  
Ш.Н. Гусейнов ◽  
А.Г. Манацков ◽  
С.В. Майбородин
Keyword(s):  
High Performance ◽  
Sugar Content ◽  
Climatic Conditions ◽  
Optimal Parameters ◽  
Grape Variety ◽  
Grape Berries ◽  
Technological Quality ◽  
High Head ◽  
Stable Yield

Для успешного развития виноградарства в конкретных почвенно-климатических условиях очень важно определиться с сортиментом винограда и рациональным комплексом агроприемов, способствующим получению высокой и стабильной урожайности требуемых технологических качеств, т.е. сортовой агротехникой. она предусматривает, прежде всего, оптимальные схемы организации виноградника с учетом зоны произрастания и направления использования продукции, и наиболее эффективна тогда, когда соответствует биологическим особенностям культивируемых сортов и климатическим условиям района произрастания. поэтому при возделывании каждого конкретного сорта очень важно определить оптимальные параметры приемов фитотехники, позволяющие применять высокопроизводительные технологические схемы возделывания винограда. для более полной реализации возможностей системы ведения была поставлена задача: установить оптимальные параметры норм нагрузки кустов побегами и способ обрезки плодовых лоз у сорта цветочный на винограднике индустриального типа, с новой для условий дона формировкой кустов «зигзагообразный кордон» (патент 2265993. Бюлл. №34. 20.12.2005 г.). приводятся результаты исследований о влиянии способов обрезки лоз и нормы нагрузки виноградных кустов побегами на продуктивность и качество урожая зимостойкого сорта цветочный при неукрывной, высокоштамбовой культуре винограда в условиях нижнего придонья. показано, что повышенные показатели продуктивности (20,7 т/га) и содержания сахаров в ягодах винограда (225 г/дм3) были получены в насаждениях индустриального типа с формировкой кустов «зигзагообразный кордон», при обрезке лоз на 2-3 глазка и нагрузке 90 тыс. побегов на 1 га. полученные в ходе исследований результаты могут быть использованы при возделывании промышленных виноградников. For the successful development of viticulture in particular soil and climatic conditions, it is very important to determine the grape assortment and a rational complex of agro-techniques to obtain high and stable yield of required technological quality, i.e. varietal agrotechnics. It provides, first of all, optimal schemes for organization of a vineyard, taking into account the area of growth and direction of the use of products. The techniques used are most effective when they correspond to the biological characteristics of cultivated varieties and climatic conditions of the growing area. Therefore, when cultivating each particular variety, it is very important to determine the optimal parameters of techniques of phytotechnics, allowing apply high-performance technological schemes of grape cultivation. For a more complete realization of management system capabilities, the task to establish the optimal parameters for loading bushes with shoots and a method of pruning vines of the ‘Tsvetochnyi' variety in industrial-type vineyards, with new for the conditions of Don "zigzag cordon" bush training (patent 2265993. Bul. No. 34. 20.12.2005) was set. The results of research on the effect of the methods of pruning vines and norms of loading grape bushes with shoots on the productivity and crop quality of the winter-hardy grape variety ‘Tsvetochnyi' in open-earth, high-head grape culture in conditions of Lower Don region are presented. It is shown that increased indicators of productivity (20.7 t/ha) and sugar content in grape berries (225 g/dm3) were obtained in industrial-type plantings with bush training of "zigzag cordon", and pruning vines on 2-3 eyes and loading of 90 tsd shoots per ha. The results obtained in the course of research may be used for cultivation of industrial vineyards.

scholarly journals Quality indicators: Carcass side and meat quality of pigs of different genotypes

2009 ◽  
Vol 25 (3-4) ◽  
pp. 173-188 ◽  
Author(s):  
O. Kosovac ◽  
B. Zivkovic ◽  
Cedomir Radovic ◽  
T. Smiljakovic
Keyword(s):  
Chemical Composition ◽  
Meat Quality ◽  
Muscle Tissue ◽  
Lean Meat ◽  
Investigation Methods ◽  
Genotype C ◽  
Technological Quality ◽  
Genotype E

In the paper, lean meat and quality of meat from pigs of 5 different genotypes were investigated: pure Landrace breed (L), genotype A; two hybrid combinations (Large Yorkshire x Landrace) x Duroc (LY x L) x D, genotype B; (Large Yorkshire x Landrace) x Pietrain (LY x L) x P, genotype C; and tow recurrent mating combinations: (Large Yorkshire x Landrace) x Large Yorkshire (F1x LY, genotype D) and (Large Yorkshire x Landrace) x Landrace (F1 x L, genotype E). Relevant indicators of lean meat were analyzed early post mortem and by method of partial dissection on cooled left carcass sides according to recommendation of EU. By analysis of obtained results it was established that the best indicator of lean meat of pig carcass sides mass of muscle tissue in four main parts. This conclusion derives from the fact that fatteners (genotype C) which had the greatest mass of muscle tissue in four main parts (15,33kg) also had the highest lean meat share in leg, shoulder, back-loin part (BLP) and belly-rib part (BRP) (69,67%, 57,71%, 54,42% and 44,99%) and highest share of muscle tissue in carcass sides when any of the mentioned investigation methods was applied (51,23 and 60,73%) compared to fatteners of other investigated genotypes. The quality of meat was investigated by determination of its technological quality and chemical composition of the MLD. Technological quality and chemical composition of MLD meat exhibited significant (*p<0,05) differences in WBC and pigment content between genotypes B and C, as well as B and E. Average values for content of ashes and share of pigments corresponds with average values characterizing muscles of normal properties. By analysis of obtained results we can conclude that fatteners of genotype E had the highest meat yield in carcass sides, but of slightly lower quality, which indicates the need for further work on improvement of meat quality. .

scholarly journals Agro-ecological and Technological Quality of Some Apples

2021 ◽  
Vol 17 ◽  
pp. 56-65
Author(s):  
Anton Sotirov ◽  
Nikolay Glavev ◽  
Dimitar Sotirov ◽  
Stanislava Dimitrova ◽  
Nikola Pistalov ◽  
...  
Keyword(s):  
Apple Juice ◽  
Sugar Content ◽  
Salt Content ◽  
Gold Rush ◽  
Raw Material ◽  
Technological Parameters ◽  
Total Sugar Content ◽  
Technological Quality ◽  
Cold Pressed

The aim of the study is to investigate cloudy apple juices, produced from 83 apple varieties, grown by the Institute of Agriculture in town of Kyustendil, Bulgaria for their main ecological and technological parameters, in view of their safety for the population and the possibilities for their use as raw material in the food industry. The study found, that the apples are environmentally friendly for the studied parameters. Technologically, there are varieties with the highest juice yields (over 70%) - Defloga, Ginger Gold, Gold Rush, Granny Smith, and Melrose. The most tasty and colored juices of fresh fruit and fruit flour are separated from the Florina, Free Redstar, Ginger Gold, Gold Rush, Golden Delicious, and Granny Smith. Some practically do not give juice and material for fruit flour with the applied method 100% cold-pressed apple juice, but they produce puree with high quality as the Belgolden, Braeburn, Charden, and Red Delicious. There were observed very stable approximate ratios between Conductivity, Total Dissolved Solids, and Salt content in the juices as follows: Cond./TDS=1.5, TDS/Salt=1.3, Cond./Salt=2. Retio between Total Sugar Content and Total Acidity - Brix/pH = 3-5, as the most tasty and with good color juices have ratio Brix/pH=4.

Evaluation of an alternative method for the prediction of the technological beet quality

2012 ◽  
pp. 88-94 ◽  
Author(s):  
Florian Emerstorfer ◽  
Walter Hein ◽  
Hans Bauer
Keyword(s):  
Sugar Content ◽  
Amino Nitrogen ◽  
Quality Parameters ◽  
Invert Sugar ◽  
Sodium Potassium ◽  
Variety Trial ◽  
Methods Of Calculation ◽  
The Common ◽  
Thick Juice ◽  
Predictive Formulas

Stagnation of the technological beet quality in Austria has peaked in discussions about methods of calculation used for predicting the same. Consequently, a project was started in 2010 in order to compare various predictive formulas for the technological beet quality on the basis of beet material from a practice variety trial as well as from weekly blended samples collected in the last campaign at Leopoldsdorf and Tulln. The beet material was analyzed for the common quality parameters such as sodium, potassium, -amino nitrogen and sugar content as well as for dry substance for a so-called “refractometer formula”. Finally, results for thick juice purity were calculated with different “classical formulas” and the “refractometer formula”. Comparing these results, the latter delivered the highest values. However, aside from a formula which also takes into account invert sugar, only the “refractometer formula” considerably reacted to decreasing beet quality over the progression of the last campaign. Consequently, it is planned to recalculate the factors of this formula because it is based on a simpler and less time-consuming analytical procedure compared to formulas which take into account invert sugar.

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