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Harland, Janice I.; Jones, Calvin K.; Hufford, Chuck

doi:10.1002/9780470751114.ch17

Cited by 17 publications

(11 citation statements)

References 32 publications

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“…Grown primarily for the production of refined sucrose, sugarbeet provides approximately 22% of the world's sugar (Südzucker, 2013). It is also the source of two high‐energy animal feeds (beet molasses and beet pulp), and is increasingly grown for biofuel production (Harland et al, 2006; Panella, 2010). Sugarbeet is grown in 42 countries on five continents, with Europe and North America producing more than 60% of the crop.…”

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confidence: 99%

Generation and Characterization of a Sugarbeet Transcriptome and Transcript‐Based SSR Markers

et al. 2014

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Sugarbeet is a major source of refined sucrose and increasingly grown for biofuel production. Demand for higher productivity for this crop requires greater knowledge of sugarbeet physiology, pathology, and genetics, which can be advanced by the development of new genomic resources. Towards this end, a sugarbeet transcriptome of expressed genes from leaf and root tissues at varying stages of development and production, and after elicitation with jasmonic acid (JA) or salicylic acid (SA), was constructed and used to generate simple sequence repeat (SSR) markers. The transcriptome was generated via paired-end RNA sequencing and contains 82,404 unigenes. A total of 37,207 unigenes were annotated, of which 9480 were functionally classified using clusters of orthologous groups (COG) annotations, 17,191 were classified into biological process, molecular function, or cellular component using gene ontology (GO) terms, and 17,409 were assigned to 126 metabolic pathways using Kyoto Encyclopedia of Genes and Genomes (KEGG) identifiers. A SSR search of the transcriptome identified 7680 SSRs, including 6577 perfect SSRs, of which 3834 were located in unigenes with ungapped sequence. Primer-pairs were designed for 288 SSR loci, and 72 of these primer-pairs were tested for their ability to detect polymorphisms. Forty-three primer-pairs detected single polymorphic loci and effectively distinguished diversity among eight B. vulgaris genotypes. The transcriptome and SSR markers provide additional, public domain genomic resources for an important crop plant and can be used to increase understanding of the functional elements of the sugarbeet genome, aid in discovery of novel genes, facilitate RNA-sequencing based expression research, and provide new tools for sugarbeet genetic research and selective breeding. Sugarbeet (Beta vulgaris L.) is an herbaceous dicotyledon and member of the Amaranthaceae family. Grown primarily for the production of refined sucrose, sugarbeet provides approximately 22% of the world's sugar (Südzucker, 2013). It is also the source of two highenergy animal feeds (beet molasses and beet pulp), and is increasingly grown for biofuel production (Harland et al., 2006;Panella, 2010). Sugarbeet is grown in 42 countries on five continents, with Europe and North America producing more than 60% of the crop. Other economically important members of the species include table beet, chard, and fodder beet. Sugarbeet production is challenged by an array of abiotic and biotic stresses that reduce biomass and sucrose content. Insufficient water, excessively hot or cold temperatures, and saline soils prevent the crop from reaching its full genetic potential and can reduce yield by as much as 50% (Boyer, 1982;Ober and Rajabi, 2010). Insects, including the sugarbeet root maggot (Tetanops myopaeformis von Röder) and root aphid (Pemphigus betae Doane),

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confidence: 99%

Generation and Characterization of a Sugarbeet Transcriptome and Transcript‐Based SSR Markers

et al. 2014

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“…Compared with nitrogen content of a standard media for LA fermentation, reported in the range from 0.01 to 0.21%, it can be considered that the stillage is an adequate nitrogen source for fastidious microorganisms like LAB. On the other hand, nitrogen content in molasses that can be assimilated is relatively low, since a large part of the nitrogen represents betaine . Lipids present in the stillage and molasses are also valuable for LA fermentation.…”

Section: Resultsmentioning

confidence: 99%

“…Sugar beet molasses is a by‐product of the sugar manufacturing process and contains sucrose as the most abundant sugar and small quantities of glucose, fructose and raffinose . Molasses has traditionally been used as animal feed and as a feedstock for ethanol and yeast production . Different strategies were studied for LA production on sucrose rich substrates.…”

Section: Introductionmentioning

confidence: 99%

Lactic acid production on a combined distillery stillage and sugar beet molasses substrate

Mladenović

Djukić‐Vuković

Kocić‐Tanackov

et al. 2015

J of Chemical Tech & Biotech

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BACKGROUND: Utilization of wastes and industrial by-products for production of valuable bio-based chemicals has economic and environmental advantages. The aim of this study was to investigate utilization of two industrial by-products, distillery stillage and sugar beet molasses combined as a substrate for lactic acid and biomass production. A selection of the most appropriate lactic acid bacteria that could effectively utilize this waste substrate was performed. In addition, the effect of initial sugar concentration on lactic acid production and growth of lactic acid bacteria on the combined waste substrate was evaluated. RESULTS:Lactobacillus paracasei NRRL B-4564 was selected as the most promising for lactic acid production on distillery stillage and sugar beet molasses. The highest lactic acid productivity of 1.42 g L −1 h −1 and yield of 0.91 g g −1 were achieved on stillage/molasses media at initial sugar concentration of 56.74 g L −1 . The highest number of L. paracasei cells at 5.3 × 10 9 CFU mL −1 was achieved at initial sugar concentration of 78.22 g L −1 . CONCLUSION: Combined distillery stillage and sugar beet molasses could provide valuable nutrients for growth of fastidious lactic acid bacteria and enable efficient lactic acid production, while processing industrial waste in this way has great environmental relevance.

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“…Sugar beet pulp contains very little lignin, consisting of approximately equal amounts of hemicellulose and pectin (Harland et al 2006). Sucrose and all of these compounds can be used as feedstocks for several important industrial feedstock chemicals; and there is tremendous potential to expand this market (Turley 2008;van Beilen 2008).…”

Section: Breeding An Energy Beetmentioning

confidence: 99%

Sugar Beet as an Energy Crop

Panella

2010

Sugar Tech

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The combination of volatility in the oil market and finite oil resources and the effect on global climate change from the addition of CO 2 to the atmosphere as a result of burning fossil fuels has increased the interest in sustainable energy generation from renewable biofuels. Most 1st generation biofuels in current production are liquid with bioethanol the product of fermentation. Sugar beet provides an abundance of sucrose, which is easily fermented by many microbes and on a per hectare basis; sugar beet is one of the most efficient sources of ethanol, however storage of harvested roots is problematic. Most studies have indicated sustainable biofuels have reduced greenhouse gas emissions (GHG) when compared to petroleum based fuels. Bioethanol from sugar beet reduces GHG comparably or superiorly to maize or sugarcane. There also are other biofuels from fermentation, including biomethanol, biobutanol ETBE, biomethane, and biohydrogen, many of which are more energy dense than ethanol. Storage of sugar beet is a problem that could be solved by ensilage and anaerobic digestion producing a biogas, which could yield more energy per hectare than bioethanol. As the global economy moves away from fossil fuels, sugar beet will play an increasing role in the adoption of more sustainable energy generation.

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Co‐Products

Cited by 17 publications

References 32 publications

Generation and Characterization of a Sugarbeet Transcriptome and Transcript‐Based SSR Markers

Generation and Characterization of a Sugarbeet Transcriptome and Transcript‐Based SSR Markers

Lactic acid production on a combined distillery stillage and sugar beet molasses substrate

Sugar Beet as an Energy Crop

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