Sugar Beet Research Papers - Academia.edu (original) (raw)

Se estudió de forma general el comportamiento del color en el proceso de producción del azúcar de plantación, los principales precursores de color y otros factores relacionados con la generación de color dentro del proceso de producción... more

Se estudió de forma general el comportamiento del color en el proceso de producción del azúcar de plantación, los principales precursores de color y otros factores relacionados con la generación de color dentro del proceso de producción de azúcar blanco de sulfitado y azúcar crudo. Se observó la persistencia y variaciones de compuestos fenólicos y aminoácidos en toda la línea de proceso y su incursión a los cristales de azúcar, evidenciando mecanismos de generación de color por etapa de proceso; también se observó una relación directa entre el contenido de los precursores de color y el color del azúcar producido.

An overall study was made of the color´s behavior in the production process of sugar from cane, the main color precursors of color and other related factors to the generation of color within the production process of sulphited white sugar... more

An overall study was made of the color´s behavior in the
production process of sugar from cane, the main color precursors
of color and other related factors to the generation of color within
the production process of sulphited white sugar (plantation white
sugar)and raw sugar. The persistence and variation of the
phenolic compounds and amino acids along the process line and
their incursion to the sugar crystals was observed, it was also
observed a direct relationship between the color precursors
content and the sugar color produced.

Agricultural production has forced researchers to focus on increasing water use efficiency by improving either new drought-tolerant plant varieties or water management for arid and semi-arid areas under water shortage conditions. A field... more

Agricultural production has forced researchers to focus on increasing water use efficiency by improving either new drought-tolerant plant varieties or water management for arid and semi-arid areas under water shortage conditions. A field study was conducted to determine effects of seasonal deficit irrigation on plant root yield, quality and water use efficiency (WUE) of sugar beet for a 2-year period in the semi-arid region. Irrigations were applied when approximately 50–55% of the usable soil moisture was consumed in the effective rooting depth at the full irrigation (FI) treatment. In deficit irrigation treatments, irrigations were applied at the rates of 75, 50 and 25% of full irrigation treatment on the same day. Irrigation water was applied by a drip irrigation system. Increasing water deficits resulted in a relatively lower root and white sugar yields. The linear relationship between evapotranspiration and root yield was obtained. Similarly, WUE was the highest in DI25 irrigation conditions and the lowest in full irrigation conditions. According to the averaged values of 2 years, yield response factor (k y ) was 0.93 for sugar beet. Sugar beet root quality parameters were influenced by drip irrigation levels in both years. The results revealed that irrigation of sugar beet with drip irrigation method at 75% level (DI25) had significant benefits in terms of saved irrigation water and large WUE, indicating a definitive advantage of deficit irrigation under limited water supply conditions. In an economic viewpoint, 25% saving of irrigation water (DI25) caused 6.1% reduction in the net income.

The purposes of this study were to determine energy consumption of input and output used in sugar beet production, and to make a cost analysis in Tokat, Turkey. Data were collected from 146 sugar beet farms in Tokat, Turkey by using a... more

The purposes of this study were to determine energy consumption of input and output used in sugar beet production, and to make a cost analysis in Tokat, Turkey. Data were collected from 146 sugar beet farms in Tokat, Turkey by using a face-to-face questionnaire performed in January and February 2005. Farms were selected based on random sampling method. The results revealed that total energy consumption in sugar beet production was 39 685.51 MJ ha−1, and accounted for 49.33% of fertilizer energy, and 24.16% of diesel energy. The output/input energy ratio was 25.75 and energy productivity was 1.53 kg MJ ha−1. Results further indicated that 82.43% of total energy input was in non-renewable energy form, and only 12.82% was in renewable form. Economic analyses showed that profit–cost ratio of farms was 1.17. The highest energy cost items were labor, land renting, depreciation and fertilizers. Although intensive energy consumption in sugar beet production increased the yield, it also resulted in problems such as global warming, land degradation, nutrient loading and pesticide pollution. Therefore, there is a need to pursue a new policy to force producers to undertake energy-efficient practices to establish sustainable production systems without disrupting the natural resources. In addition, extension activities are needed to improve the efficiency of energy consumption and to sustain the natural resources.

Una investigación bibliográfica y ensayos de laboratorios han sido realizados para determinar los principales factores que influencian el desarrollo del color durante el almacenamiento del azúcar, centrándose en el azúcar blanco... more

Una investigación bibliográfica y ensayos de laboratorios han sido realizados para determinar los principales factores que influencian el desarrollo del color durante el almacenamiento del azúcar, centrándose en el azúcar blanco sulfitado. Los resultados concernientes al color, el contenido de aminoácidos, azúcares reductores, flavonoides, sulfitos y temperatura han permitido describir en cierta medida el fenómeno del pardeamiento del azúcar durante el almacenamiento. Se ha observado que la tasa de transferencia de calor entre el interior de una estiba y el exterior es muy bajo, pudiéndose conservar la temperatura a la cual se almacena el azúcar durante un periodo prolongado. Así mismo se ha determinado que la temperatura de almacenamiento es clave para la cinética del pardeamiento del azúcar durante su almacenamiento.

The aim of the present study was to characterize sixteen isolates of Trichoderma originating from a field of sugar beet where disease patches caused by Rhizoctonia solani were observed. Use of both molecular and morphological... more

The aim of the present study was to characterize sixteen isolates of Trichoderma originating from a field of sugar beet where disease patches caused by Rhizoctonia solani were observed. Use of both molecular and morphological characteristics gave consistent identification of the isolates. Production of water-soluble and volatile inhibitors, mycoparasitism and induced systemic resistance in plant host were investigated using in vitro and in vivo tests in both sterilized and natural soils. This functional approach revealed the intra-specific diversity as well as biocontrol potential of the different isolates. Different antagonistic mechanisms were evident for different strains. The most antagonistic strain, T30 was identified as Trichoderma gamsii. This is the first report of an efficient antagonistic strain of T. gamsii being able to reduce the disease in different conditions. The ability to produce water-soluble inhibitors or coil around the hyphae of the pathogen in vitro was not related to the disease reduction in vivo. Additionally, the strains collected from the high disease areas in the field were better antagonists. The antagonistic activity was not characteristic of a species but that of a population.

An overall study was made of the color´s behavior in the production process of sugar from cane, the main color precursors of color and other related factors to the generation of color within the production process of sulphited white sugar... more

An overall study was made of the color´s behavior in the production process of sugar from cane, the main color precursors of color and other related factors to the generation of color within the production process of sulphited white sugar (plantation white sugar) and raw sugar. The persistence and variation of the phenolic compounds and amino acids along the process line and their incursion to the sugar crystals was observed, it was also observed a direct relationship between the color precursors content and the sugar color produced.

A field experiment was conducted at the research farm of the Department of Agronomy, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur, from November 2011 to May 2012 to find out the growth pattern and optimum sowing date... more

A field experiment was conducted at the research farm of the Department of Agronomy, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur, from November 2011 to May 2012 to find out the growth pattern and optimum sowing date of tropical sugar beet in Bangladesh. The tropical sugar beet genotypes were Cauvery, Shubhra and EB0616, and sowing dates were 01 November, 15 November, 01 December and 15 December. The interaction effect of sowing dates and sugar beet genotypes was statistically significant in growth
parameters like leave number, leaf area index (LAI), crop growth rate (CGR), root weight per plant, root yield. The highest root yield was obtained from genotypes EB0616 when sown on 01 November (103.5 t/ha) and 15 November (100 t/ha). The genotypes Cauvery and Shubhra gave identical root yield i.e., 90.27 t/ha and 92.86 t/ha, respectively on 01 November sowing. Root yield significantly decreased in all the three genotypes with the advancement of sowing dates from 01 November onwards. For high root yield the optimum sowing date for tropical sugar beet in Bangladesh seems to be in early November. Get more articles at: http://www.innspub.net/volume-7-number-1-july-2015-ijaar/

La calidad de la caña de azúcar que ingresa al proceso de producción no solo afecta la eficiencia del proceso, sino que también afecta la generación de color dentro de este y a la calidad del producto final. Se ha estudiado la influencia... more

La calidad de la caña de azúcar que ingresa al proceso de producción no solo afecta la eficiencia del proceso, sino que también afecta la generación de color dentro de este y a la calidad del producto final. Se ha estudiado la influencia del contenido de materia extraña en el color y el contenido de precursores de color: aminoácidos, flavonoides, azúcares reductores, hierro y la pureza del jugo de caña para dos variedades de caña predominantes en el país. Se ha encontrado una directa relación entre el contenido de materia extraña y el contenido de precursores de color. También queda evidenciado el impacto en el incremento tanto en el color como en el contenido de aminoácidos y flavonoides a causa de la corta mecanizada.

Bibliographic research and laboratory tests have been conducted to determine the main factors that influence the development of color during the sugar storage, focusing on sulphited white sugar. Results concerning the color, the amino... more

Bibliographic research and laboratory tests
have been conducted to determine the main factors that
influence the development of color during the sugar storage,
focusing on sulphited white sugar. Results concerning the color,
the amino acids content, reducing sugars, flavonoids, sulfites
and temperature, have enable describe to some extend the
phenomenon of sugar browning during storage. It has been
observed that the rate of heat transference between the interior
of a stowage and the exterior is very low, being able to conserve
the temperature at which sugar is stored during an extended
period. Likewise it has been determined that the storage
temperature is key for the kinetic of sugar browning during
storage.

This article highlights the importance of sugar trade journals from the second half of the 19th century to the first of the 20th century. specifically the French-Le Journal des Fabricants de Sucre, the British - The Sugar Cane y the... more

This article highlights the importance of sugar trade journals from the second half of the 19th century to the first of the 20th century. specifically the French-Le Journal des Fabricants de Sucre, the British - The Sugar Cane y the U.S.- Louisiana Planter and Sugar Manufacturer. Their coverage of Caribbean sugar production, processing and marketing (namely, the commodity chain) makes then an indispensable source for Caribbean sugar histories not usually consulted by historians. The paper centers on The Louisiana Planter as a case study by explaining its establishment and international expansion, clientele and its coverage of the Caribbean, particularly, Cuba, Dominican Republic and Puerto Rico but also with references to the British, Danish, Dutch and French Caribbean.

Municipal solid waste (MSW) composts have been frequently used as N and C amendments to improve soil quality and to support plant growth, with the additional benefit of reducing waste disposal costs. However, attention has been paid to... more

Municipal solid waste (MSW) composts have been frequently used as N and C amendments to improve soil quality and to support plant growth, with the additional benefit of reducing waste disposal costs. However, attention has been paid to the risks of MSW use for the soil environment. The presence of heavy metals in MSW composts can affect some microbiological characteristics of soil such as the structure of the soil microbiota, which are responsible for the transformations making nutrients available to plants. The effects of MSW compost and mineral-N amendments in a 2-year field trial on some physical-chemical properties, some enzyme activities and the genetic diversity of cropped plots (sugar beet-wheat rotation) and uncropped plots were investigated. Variations of pH were not statistically related to MSW compost and mineral-N amendments, or to the presence of the crop. Amendment with MSW compost increased the organic C and total N contents, and dehydrogenase and nitrate reductase activities of soil. In cropped plots amended with MSW compost, dehydrogenase activity was positively correlated with β-glucosidase activity, and both enzyme activities with organic C content. No MSW compost dosage effect was detected. No effects were observed on denaturing gradient gel electrophoresis and amplified rDNA restriction analysis patterns, indicating that no significant change in the bacterial community occurred as a consequence of MSW amendment.

Sugar beet (Beta vulgaris L.) is an important industrial crop, being one of only two plant sources from which sucrose (i.e., sugar) can be economically produced. Despite its relatively short period of cultivation (ca. 200 years), its... more

Sugar beet (Beta vulgaris L.) is an important industrial crop, being one of only two plant sources from which sucrose (i.e., sugar) can be economically produced. Despite its relatively short period of cultivation (ca. 200 years), its yield and quality parameters have been significantly improved by conventional breeding methods. However, during the last two decades or so, advanced in vitro