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White Castle, LA, United States

Eggleston G.,U.S. Department of Agriculture | Andrzejewski B.,U.S. Department of Agriculture | Alexander C.,U.S. Department of Agriculture | Alexander C.,Louisiana Sugar Refining LLC | And 5 more authors.
International Sugar Journal | Year: 2011

A pilot-plant facility to process sugarcane juice into sugar and molasses has been developed under a limited budget at the Southern Regional Research Center of the United States Department of Agriculture in New Orleans, Louisiana (LA). The batch plant (27.9 m2) includes juice heating, clarification, evaporation, vacuum pan boiling, and centrifugation equipment. Juice is collected from factories or other research facilities, transported to the pilot-plant and processed. A walk-in cooler is available close to the pilot plant to store juices, factory products, and pilot plant products at refrigerated or freezing temperatures, if necessary. Design characteristics and operational procedures are described. This pilot-plant will be used to conduct research projects, complement factory research trials, as well as research processing innovations. Juices from other sugar crops, including sugar beet, sweet sorghum, and tropical maize can also be processed. Source


Eggleston G.,U.S. Department of Agriculture | Birkett H.,Audubon Sugar Institute | Gay J.,St. Louis Planting Co. | Legendre B.,Audubon Sugar Institute | And 6 more authors.
International Sugar Journal | Year: 2012

New refineries in Louisiana, USA are requesting Louisiana sugarcane factories to deliver very high pol/very low color (VHP/VLC) raw sugar with low ash concentrations. This higher quality raw sugar will allow both growers and factory processors to share economic premiums from the new refineries. A comprehensive factory trash trial was conducted in Louisiana to determine how different speeds of the extractor fans on two combine harvesters (John Deere 3500 and 3510 models) affect trash levels of green billets from L 99-226 commercial sugarcane variety (ripener treated) as well as upstream and downstream processing. Fan speeds of 1050, 850 and 650 rpm were studied on Days 1, 2, and 3 (20-22 Nov, 2010), respectively, at a constant ground speed of 3.5 mph. Total trash levels (growing point region+green leaves+brown leaves) were 12.1, 18.9 and 22.7% for the 1050, 850, and 650 rpm fan speeds, respectively, and significantly (P < 0.05) different. Sufficient cane of each treatment (24-27 truck loads) was harvested and processed each day to purge the tandem mill of other cane and to process the selected cane for a total of ~30 min. A bulk sample of mixed juice (MJ) was transported to the USDA-ARS-SRRC pilot plant in New Orleans to produce clarified juice, syrup, A-massecuites, A-molasses, A-raw, and affined sugars. Most quality and processing parameters, including soluble solids, sucrose, color, ash, starch, and mud volume during clarification became progressively worse with increased trash levels and decreased fan speed. For every 1% increase in trash there was an approximate 0.13-0.21% decrease in MJ purity. Furthermore, purity of subsequent raw sugar became progressively worse with increased trash levels. Total trash levels between 18.9 and 22.7% from 850 to 650 rpm fan speeds, respectively, impeded the manufacture of VHP/VLC for a refinery, but the types of trash tissues influenced the raw sugar color, particularly the growing point region. Overall, at 650 rpm fan speed, VHP sugar (>2200 CU) cannot be commercially attained for L 99-226 in late November. Net proceeds to the grower were optimal for both growers and processors at the 850 rpm setting. More data are still needed for L 99-226 and other varieties, especially early in the Louisiana processing season when trash levels are considerably higher. Source


Eggleston G.,U.S. Department of Agriculture | Birkett H.,Audubon Sugar Institute | Gay J.,St. Louis Planting Co. | Legendre B.,Audubon Sugar Institute | And 6 more authors.
International Sugar Journal | Year: 2012

New refineries in Louisiana, USA are requesting Louisiana sugarcane factories to deliver very high pol/very low color (VHP/VLC) raw sugar with low ash concentrations. This higher quality raw sugar will allow both growers and factory processors to share economic premiums from the new refineries. A comprehensive factory trash trial was conducted in Louisiana to determine how different speeds of the extractor fans on two combine harvesters (John Deere 3500 and 3510 models) affect trash levels of green billets from L 99-226 commercial sugarcane variety (ripener treated) as well as upstream and downstream processing. Fan speeds of 1050, 850 and 650 rpm were studied on Days 1, 2, and 3 (20-22 Nov, 2010), respectively, at a constant ground speed of 3.5 mph. Sufficient cane of each treatment (24-27 truck loads) was harvested and processed each day to purge the tandem mill of other cane and to process the selected cane for a total of ~30 min. Trash tissues, prepared cane, and bagasse samples in the front end were collected and analyzed. Percent extraction and processing rates were calculated. Total trash levels (growing point region or top stalk + green leaves + brown leaves) were 12.1, 18.9 and 22.7% for the 1050, 850, and 650 rpm fan speeds, respectively, and significantly (P<0.05) different. There was extra trash than the hand-cut field cane at 850 and 650 rpm because of (i) slight layers of mud on the trash adding to the weight and (ii) weedy plant material. Most cane quality and processing parameters, including fiber, soluble solids, pol sucrose, purity, percent extraction, imbibition, processing rate, and mud volume became progressively worse with increased trash levels and decreased fan speed. Net proceeds to the grower were optimal for both growers and processors at the 850 rpm setting. More data are still needed for L 99-226 and other varieties, especially early in the Louisiana processing season when trash levels are considerably higher. Source

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