Improving thin sugar beet juice quality through ultrafiltration

Shahidi, Mostafa; Razavi, Seyed Mohammad Ali

doi:10.1016/j.desal.2006.03.419

Cited by 9 publications

(3 citation statements)

References 3 publications

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“…Use of membrane technology to purify sugar juices can efficiently replace this traditional process [ 29 ]. In addition, several investigators also reported that membrane filtration of sugar juice could give higher purity, that is, higher sucrose concentration as compared to the conventional liming-carbonation method [ 30 – 33 ].…”

Section: Potential Juices Used As Feedstocksmentioning

confidence: 99%

Bioethanol Production from Fermentable Sugar Juice

Zabed

Faruq

Sahu

et al. 2014

The Scientific World Journal

245

160

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Bioethanol production from renewable sources to be used in transportation is now an increasing demand worldwide due to continuous depletion of fossil fuels, economic and political crises, and growing concern on environmental safety. Mainly, three types of raw materials, that is, sugar juice, starchy crops, and lignocellulosic materials, are being used for this purpose. This paper will investigate ethanol production from free sugar containing juices obtained from some energy crops such as sugarcane, sugar beet, and sweet sorghum that are the most attractive choice because of their cost-effectiveness and feasibility to use. Three types of fermentation process (batch, fed-batch, and continuous) are employed in ethanol production from these sugar juices. The most common microorganism used in fermentation from its history is the yeast, especially, Saccharomyces cerevisiae, though the bacterial species Zymomonas mobilis is also potentially used nowadays for this purpose. A number of factors related to the fermentation greatly influences the process and their optimization is the key point for efficient ethanol production from these feedstocks.

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Section: Potential Juices Used As Feedstocksmentioning

confidence: 99%

Bioethanol Production from Fermentable Sugar Juice

Zabed

Faruq

Sahu

et al. 2014

The Scientific World Journal

245

160

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show abstract

“…The research and application of MST in the sugar industry has expanded in recent years. Apart from clarifying mixed juice, MST is also applied to other materials, including limed juice, raw sugar remelt syrup, brown sugar remelt syrup, and molasses [ 4 , 5 , 6 , 7 , 8 , 9 , 10 , 11 , 12 , 13 ]. Polyethersulphone (PES) membranes with a molecular weight cutoff of 15–50 kDa and mineral membranes for treating 50 °Bx remelt syrup has shown significant results.…”

Section: Introductionmentioning

confidence: 99%

Pretreatment of Glucose–Fructose Syrup with Ceramic Membrane Ultrafiltration Coupled with Activated Carbon

Hang,

Xu,

Xie

et al. 2024

Membranes

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Ceramic membranes are applied to remove non-sugar impurities, including proteins, colloids and starch, from glucose–fructose syrup that is dissolved from raw sugar using acid. The performance of ceramic membranes with 0.05 μm pores in clarifying high-fructose syrup was investigated under various operating conditions. The flux decreased rapidly at the start of the experiment and then tended to stabilize at a temperature of 90 °C, a transmembrane pressure of 2.5 bar, and cross-flow velocity of 5 m/s under total reflux operation. Moreover, the steady-state flux was measured at 181.65 Lm−2 h−1, and the turbidity of glucose–fructose syrup was reduced from 92.15 NTU to 0.70 NTU. Although membrane fouling is inevitable, it can be effectively controlled by developing a practical approach to regenerating membranes. Mathematical model predictions, scanning electron microscopy, energy dispersive X-ray spectroscopy, and Fourier-transform infrared spectroscopy revealed that foulants primarily responsible for fouling are composed of polysaccharides, proteins, sucrose, phenols, and some metal elements, such as calcium, aluminum, and potassium. Due to the removal of suspended colloidal solids, the membrane-filtered glucose–fructose syrup was decolorized using activated carbon; the filtration rate was effectively improved. A linear relationship between volume increase in syrup and time was observed. A decolorization rate of 90% can be obtained by adding 0.6 (w/w) % of activated carbon. The pretreatment of glucose–fructose syrup using a ceramic membrane coupled with activated carbon results in low turbidity and color value. This information is essential for advancing glucose–fructose syrup and crystalline fructose production technology.

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“…Furthermore, membrane filtration techniques have also been extensively studied for utilization in the sugar industry during the past decade, since their application can minimize usage of chemicals, lead to continuous production, and enhance product yield and quality . Nanofiltration (NF) and ultrafiltration (UF) were recognized as alternative methods for juice purification and molasses desugarization, due to the increased efficiency in non‐sucrose compound separation . For this purpose, polymeric membranes in spiral wound or flat sheet configurations as well as ceramic membranes in tubular filtration systems were used .…”

Section: Introductionmentioning

confidence: 99%

Modelling of cross‐flow microfiltration coupled with bentonite treatment in sugar beet molasses purification

et al. 2018

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The removal of colourants and other non-sucrose compounds from sugar beet molasses opens the possibility for more acceptable and effective recovery of sucrose, which is the most valuable sugar industry product. In the presented study, the feasibility of the sugar beet molasses purification process, which combines sodium bentonite pre-treatment and microfiltration with an embedded static mixer, was examined. Molasses pretreatment with sodium bentonite consisted of a bentonite suspension addition (7 g/L) under the following conditions: pH 5, temperature 50 8C, and contact time 30 min. Sugar beet molasses separation from bentonite was performed by cross-flow microfiltration using a 200 nm TiO 2 ceramic tubular membrane with static mixer absence or presence and variation in the sugar beet molasses flow rate and dry substance. The molasses purification process efficiency was validated through the permeate flux values as well as colour and turbidity measurements. Higher molasses colour (20-60 %) and turbidity reduction (83.4-99.2 %) was achieved in the experiments with static mixer absence, while static mixer introduction greatly increased the final and especially steady-state permeate flux.

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Improving thin sugar beet juice quality through ultrafiltration

Cited by 9 publications

References 3 publications

Bioethanol Production from Fermentable Sugar Juice

Bioethanol Production from Fermentable Sugar Juice

Pretreatment of Glucose–Fructose Syrup with Ceramic Membrane Ultrafiltration Coupled with Activated Carbon

Modelling of cross‐flow microfiltration coupled with bentonite treatment in sugar beet molasses purification

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