scholarly journals Effect of Storage Conditions on the Sugar Recovery, Sucrose Loss in Wastes and Juice Purity during Sugar Beet Manufacture

2019 ◽  
Vol 6 (1) ◽  
pp. 65-73
Author(s):  
Mokhless A. M. Abd El-Rahman Mennat-Allah M. A. El-Geddawy
Keyword(s):  
Sugar Beet ◽  
Storage Conditions ◽  
Sugar Recovery ◽  
Sucrose Loss

Changes in the content of organic acids and inorganic anions in sugar beet during long-term storage

2016 ◽  
pp. 760-764 ◽  
Author(s):  
Maciej Wojtczak ◽  
Aneta Antczak-Chrobot ◽  
Paulina Miko ◽  
Magdalena Molska ◽  
Ilona Baszczyk ◽  
...  
Keyword(s):  
Sugar Beet ◽  
Storage Conditions ◽  
Denitrifying Bacteria ◽  
Raw Material ◽  
Storage Duration ◽  
Long Term Storage ◽  
Term Storage ◽  
Acetic Acids

Due to the prolongation of the period of the sugar campaign, it is necessary to optimize the storage conditions, so that changes in the quality of the raw material could be minimized. The aim of this study was to determine the effect of storage duration and temperature on changes in the composition of sugar beet. The study presents the changes in the content of glucose, fructose, raffinose, lactic and acetic acids, nitrates and nitrites as well as in the content of the total number of mesophilic bacteria, denitrifying bacteria and spores of denitrifying bacteria during storage under various conditions.

Benchmarking and improving sugar recovery from final molasses

2020 ◽  
pp. 166-171
Author(s):  
Ross Broadfoot
Keyword(s):  
Shear Rate ◽  
Close Approach ◽  
Maintenance Cost ◽  
Sugar Recovery ◽  
Coil Design ◽  
Factors Affecting ◽  
Raw Sugar ◽  
Actual Loss ◽  
Design Experience ◽  
Sucrose Loss

The sucrose loss in final molasses in raw sugar manufacture is the largest loss. One factor that typically limits the extent of sucrose recovery from final molasses is that cooling crystallizers are high capital and maintenance cost items. The target purity of the final molasses is the commonly used benchmark to assess the effectiveness of exhaustion of final molasses. However, this benchmark does not relate to an actual loss of sucrose. A benchmark that calculates the Target Sucrose Loss (TSL) in molasses for the factory is proposed. Factories would aim to maintain the sucrose loss in final molasses to within 1 unit of the TSL. A close approach to the target purity is still required as part of the drive to achieve this result. An advantage of the TSL is that it considers the influence of the quantity of soluble impurities in the cane supply on the actual sucrose loss in molasses. Data from Australian factories are presented to demonstrate the application of the TSL. Several factors affecting the exhaustion of final molasses are discussed, including the effects of Cmassecuite purity, crystallizer station performance and shear rate on the massecuite within the crystallizers. Some Australian factories have recently refurbished horizontal, rotating coil crystallizers with designs incorporating fixed cooling elements and rotating paddles to provide high shear rate conditions and overcome maintenance issues associated with the coil design. Experience shows that the fixed-element design is an economical way to provide strong exhaustion performance.

scholarly journals Influence of Harvest Timing, Fungicides, and Beet necrotic yellow vein virus on Sugar Beet Storage

Plant Disease ◽  
2015 ◽  
Vol 99 (10) ◽  
pp. 1296-1309 ◽  
Author(s):  
Carl A. Strausbaugh ◽  
Oliver Neher ◽  
Eugene Rearick ◽  
Imad A. Eujayl
Keyword(s):  
Sugar Beet ◽  
Root Rot ◽  
Fungal Growth ◽  
Control Treatment ◽  
Water Control ◽  
Root Rots ◽  
Commercial Sugar ◽  
Phoma Betae ◽  
Penicillium Spp ◽  
Sucrose Loss

Root rots in sugar beet storage can lead to multimillion dollar losses because of reduced sucrose recovery. Thus, studies were conducted to establish additional fungicide treatments for sugar beet storage and a greater understanding of the fungi involved in the sugar beet storage rot complex in Idaho. A water control treatment and three fungicides (Mertect [product at 0.065 ml/kg of roots; 42.3% thiabendazole {vol/vol}], Propulse [product at 0.049 ml/kg of roots; 17.4% fluopyram and 17.4% prothioconazole {vol/vol}], and Stadium [product at 0.13 ml/kg of roots; 12.51% azoxystrobin, 12.51% fludioxonil, and 9.76% difenoconozole {vol/vol}]) were investigated for the ability to control fungal rots of sugar beet roots held up to 148 days in storage during the 2012 and 2013 storage seasons. At the end of September into October, roots were harvested weekly for 5 weeks from each of two sugar beet fields in Idaho, treated with the appropriate fungicide, and placed on top of a commercial indoor sugar beet storage pile until early February. Differences (P < 0.0001 to 0.0150) among fungicide treatments were evident. Propulse- and Stadium-treated roots had 84 to 100% less fungal growth versus the control roots, whereas fungal growth on Mertect-treated roots was not different from the control roots in 7 of 12 comparisons for roots harvested each of the first 3 weeks in both years of this study. The Propulse- and Stadium-treated roots also reduced (P < 0.0001 to 0.0146; based on weeks 1, 3, and 4 in 2012 and weeks 1, 3, 4, and 5 in 2013) sucrose loss by 14 to 46% versus the control roots, whereas roots treated with Mertect did not change sucrose loss compared with the control roots in 7 of 10 evaluations. The predominant fungi isolated from symptomatic roots were an Athelia-like sp., Botrytis cinerea, Penicillium spp., and Phoma betae. If Propulse and Stadium are labeled for use on sugar beet in storage, these fungicides should be considered for root rot control in commercial sugar beet storage and on roots held for vernalization for seed production of this biennial plant species.

scholarly journals Postharvest Storage Losses Associated with Rhizomania in Sugar Beet

Plant Disease ◽  
2008 ◽  
Vol 92 (4) ◽  
pp. 575-580 ◽  
Author(s):  
L. G. Campbell ◽  
K. L. Klotz ◽  
L. J. Smith
Keyword(s):  
Sugar Beet ◽  
Respiration Rate ◽  
Invert Sugar ◽  
Yellow Vein ◽  
Sugar Concentration ◽  
Postharvest Storage ◽  
Postharvest Losses ◽  
Storage Losses ◽  
Respiration Rates ◽  
Sucrose Loss

During storage of sugar beet, respiration and rots consume sucrose and produce invert sugar. Diseases that occur in the field can affect the magnitude of these losses. This research examines the storage of roots with rhizomania (caused by Beet necrotic yellow vein virus) and the effectiveness of rhizomania-resistant hybrids in reducing postharvest losses. Roots of susceptible hybrids from sites with rhizomania had respiration rates 30 days after harvest (DAH) that ranged from 0.68 to 2.79 mg of CO2 kg–1 h–1 higher than roots of the resistant hybrids. This difference ranged from 2.60 to 13.88 mg of CO2 kg–1 h–1 120 DAH. Roots of resistant hybrids from sites with rhizomania had 18 kg more sucrose per ton than roots from susceptible hybrids 30 DAH, with this difference increasing to 55 kg Mg–1 120 DAH. The invert sugar concentration of susceptible hybrids from sites with rhizomania ranged from 8.38 to 287 g per 100 g of sucrose higher than that for resistant hybrids 120 DAH. In contrast, differences between susceptible and resistant hybrids in respiration rate, sucrose loss, and invert sugar concentration in the absence of rhizomania were relatively small. Storage losses due to rhizomania can be minimized by planting resistant hybrids and processing roots from fields with rhizomania soon after harvest.

scholarly journals SUGAR BEET HYBRIDS OF FLORIMOND DESPREZ COMPANY IN THE FIELDS OF THE LIPETSK REGION

2021 ◽  
pp. 5-12
Author(s):  
V.A. Gulidova ◽  
Keyword(s):  
Sugar Beet ◽  
Sugar Content ◽  
Sugar Recovery ◽  
High Sugar ◽  
Key Indicator ◽  
Root Crops ◽  
High Sugar Content ◽  
High Yields

This paper compares the sugar beet hybrids of the Florimond Desprez Company. The studied hybrids (Oural, Ardan, Candimax, Narcos and Danube) showed high yields, high sugar content of root crops and high yields of granulated sugar under the conditions of the Lipetsk Re-gion on leached heavy loamy chernozem. Of the five sugar beet hybrids under the conditions of the Lipetsk Region, the late ripening hybrid Narcos was the most productive one in terms of gross sugar recovery -the key indicator for sugar beet growers. This hybrid ensured a gross sugar recovery of 10.66 t ha. This hybrid also formed the roots with higher sugar content (18.16%) than other hybrids un-der study. The hybrid Maximella (KWS Company) was the control; it turned out to be more productive in the Lipetsk Region than the Florimond Desprez hybrids. This hybrid outyielded the studiedhybrids regarding the gross sugar recovery: Oural hybrid -by 0.666 t ha, Ardan -0.515 t ha, Candimax -0.883 t ha, Narcos -0.303 t ha, Danube -1.221 t ha. The hybrid Danube showed the lowest produc-tivity with high sugar content (17.81%) in the roots. The most processable roots regarding weight were those of the hybrids Ardan (376 g), Narcos (358 g) and Candimax (333 g). The cultivation of Florimond Desprez hybrids was prof-itable; the Narcos hybrid showed the greatest profitability -492.6%

scholarly journals Integrative transcriptomics reveals genotypic impact on sugar beet storability

2020 ◽  
Vol 104 (4-5) ◽  
pp. 359-378
Author(s):  
Silvia Madritsch ◽  
Svenja Bomers ◽  
Alexandra Posekany ◽  
Agnes Burg ◽  
Rebekka Birke ◽  
...  
Keyword(s):  
Cell Wall ◽  
Sugar Beet ◽  
Molecular Mechanisms ◽  
Sugar Industry ◽  
Pathogen Resistance ◽  
Invert Sugar ◽  
Sugar Accumulation ◽  
Hub Genes ◽  
Driver Genes ◽  
Sucrose Loss

Abstract Key message An integrative comparative transcriptomic approach on six sugar beet varieties showing different amount of sucrose loss during storage revealed genotype-specific main driver genes and pathways characterizing storability. Abstract Sugar beet is next to sugar cane one of the most important sugar crops accounting for about 15% of the sucrose produced worldwide. Since its processing is increasingly centralized, storage of beet roots over an extended time has become necessary. Sucrose loss during storage is a major concern for the sugar industry because the accumulation of invert sugar and byproducts severely affect sucrose manufacturing. This loss is mainly due to ongoing respiration, but changes in cell wall composition and pathogen infestation also contribute. While some varieties can cope better during storage, the underlying molecular mechanisms are currently undiscovered. We applied integrative transcriptomics on six varieties exhibiting different levels of sucrose loss during storage. Already prior to storage, well storable varieties were characterized by a higher number of parenchyma cells, a smaller cell area, and a thinner periderm. Supporting these findings, transcriptomics identified changes in genes involved in cell wall modifications. After 13 weeks of storage, over 900 differentially expressed genes were detected between well and badly storable varieties, mainly in the category of defense response but also in carbohydrate metabolism and the phenylpropanoid pathway. These findings were confirmed by gene co-expression network analysis where hub genes were identified as main drivers of invert sugar accumulation and sucrose loss. Our data provide insight into transcriptional changes in sugar beet roots during storage resulting in the characterization of key pathways and hub genes that might be further used as markers to improve pathogen resistance and storage properties.

Impact of beet quality on sugar manufacture Part 2. Impact of invert sugar on beet processing

2020 ◽  
pp. 154-160
Author(s):  
Jan Maarten de Bruijn
Keyword(s):  
Sugar Beet ◽  
Sugar Content ◽  
Quality Criteria ◽  
Quality Parameters ◽  
Invert Sugar ◽  
Quality Analysis ◽  
Sugar Recovery ◽  
Glucose Content ◽  
Recent Developments ◽  
The Impact

In the earlier SugarProTech Facts1, Part 1, it has been explained that, apart from the traditional beet quality criteria (i.e. sugar content, K, Na, N, soil tare), additional quality criteria should be looked upon too, so to reduce their impact on processing. The invert sugar content of sugar beet is one of the most important quality parameters and thanks to recent developments it is now possible to routinely determine the glucose content of sugar beet in the tarehouse from which the total invert sugar content can be calculated. In Part 2 of this beet quality topic it will be demonstrated that incorporating invert sugar in the (Dutch) formula for predicting the sugar loss to molasses – and so the extractability of sugar from beet – has markedly improved the correlation between beet quality analysis and sugar recovery in factory practice. The impact of the invert sugar content in beet on both sugar recovery and the need of alkali addition to process will be quantified, thereby distinguishing different beet qualities.

Genotypic variability in storage losses of sugar beet

2014 ◽  
pp. 302-310 ◽  
Author(s):  
Katharina Schnepel ◽  
Christa Hoffmann
Keyword(s):  
Sugar Beet ◽  
Storage Conditions ◽  
Invert Sugar ◽  
Sugar Accumulation ◽  
Genotypic Differences ◽  
Genotypic Variability ◽  
Storage Losses ◽  
Genotype Effect ◽  
High Level ◽  
Selection Of

Storage losses of sugar beets are affected by storage conditions, but may also depend on growing site and genotype. The aim of the present study was to quantify the genotype effect on storage losses and to analyze the reasons for genotypic variability in sugar losses and accumulation of invert sugar. In 2011, 36 sugar beet genotypes and in 2012, 18genotypes were cultivated at two growing sites. After harvest beets were stored for 8 and 12 weeks at 8°C and 20°C in climate containers, respectively. Sugar losses increased with thermal time in store and were closely related to invert sugar accumulation. The growing site strongly affected the storage losses and maximum genotypic differences occurred at growing sites with particularly high level of storage losses. Genotypic differences were primarily caused by differences in the level of infestation with microorganisms, but also by differences in the beets’ carbohydrate metabolism. The infestation with microorganisms after storage was related to the marc content of genotypes before storage pointing to a non-specific resistance. The results underline a marked influence of the genotype on storage losses with a proportion of variance of 12%. Thus, selection of varieties with improved storability seems promising to reduce storage losses of sugar beet. But so far, no criteria are available to select for good storability of sugar beet varieties.

Impact of tops and green leaves on sugarcane processing: laboratory testing

2021 ◽  
pp. 209-215
Author(s):  
Camille Roussel ◽  
Arnaud Petit ◽  
Philippe Rondeau
Keyword(s):  
Laboratory Testing ◽  
Reducing Sugars ◽  
Quality Parameters ◽  
Operating Parameters ◽  
Sugar Recovery ◽  
Green Leaves ◽  
Juice Extraction ◽  
Lime Consumption ◽  
Sugarcane Processing ◽  
Sucrose Loss

In Réunion, changes in harvesting practices have led to increased amounts of sugarcane tops and leaves delivered to factories. To anticipate the changes in sugar recovery processing, laboratory trials were undertaken. Samples with known quantities of tops or green leaves were prepared and cane processing was simulated at laboratory scale: juice extraction, clarification and evaporation with operating parameters similar to those in the factory. Juice and syrup were collected and analyzed for sugar quality parameters, as well as parameters that impact sugar recovery or processing quality: ash and reducing sugars contents were monitored to estimate the sucrose loss to molasses, while calcium, phosphate and oxalate contents were monitored to evaluate the risk of fouling in evaporator. Results highlight a degradation of juice composition with increasing quantities of tops and leaves, an increase in lime consumption, and color. An increase in residual calcium in syrup was observed thus increasing the risk of evaporator fouling. The mixed juice, clear juice and syrup qualities declined in the same proportion and the composition of the juice did not get worse with juice treatment.

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