Sugar beet pulp

Other Insoluble Fiber Sources. Other iasoluble fiber sources are commercially avaUable as weU, including fiber from sugar-beet pulp, a by-product of sugar productioa. Table 3 Usts other iasoluble fiber sources. 

Fuller s earth, oil filter, spent 60-65 5 Sugar-beet pulp, dry 12-15 5... 

Glass batch 90-100 D285 Sugar-beet pulp, wet 25-45 5... 

Potential resources of xylans are by-products produced in forestry and the pulp and paper industries (forest chips, wood meal and shavings), where GX and AGX comprise 25-35% of the biomass as well as annual crops (straw, stalks, husk, hulls, bran, etc.), which consist of 25-50% AX, AGX, GAX, and CHX [4]. New results were reported for xylans isolated from flax fiber [16,68], abaca fiber [69], wheat straw [70,71], sugar beet pulp [21,72], sugarcane bagasse [73], rice straw [74], wheat bran [35,75], and jute bast fiber [18]. Recently, about 39% hemicelluloses were extracted from vetiver grasses [76]. 

The discovery of these enzymes enables a better structural characterisation of the hairy (ramified) regions of pectin, as already demonstrated by Schols et al. (1990b) and also of native plant cell wall pectin (Schols et al., 1995). In this study we show how the two exo-enzymes of the above described series, the RG-rhamnohydrolase and the RG-galacturonohydrolase, can be used as tools in the characterisation of unknown RG fragments. These unknown fragments were the products of RG-hydrolase or RG-lyase action toward linear RG oligomers (RGO s), which were produced by acid hydrolysis of sugar beet pulp. 

Sugar beet pulp was saponified and then hydrolysed with 0.1 N HCl at 80 °C for 72 h. Linear RG oligomers of DP 6 to 18, abbreviated RGO 6 to 18, were isolated by ion-exchange chromatography and size-exclusion chromatography by Renard et al. (1995). 

Extrusion-cooking of cell-wall rich products (e.g. wheat bran, apple pomace, citrus peels, sugar-beet pulp, pea hulls.) led to an important solubilisation of polysaccharides of various types without extensive degradation of the polymeric structure. The possibility of obtaining gelled systems directly with the extruded pectin-rich materials was demonstrated. 

Extrusion-cooking increased very significantly the water-solubility of plant cell wall rich-materials. High amounts of pectins can be solubilised from sugar-beet pulp, citrus peels or apple pomace. 

To improve production of rhamnogalacturonase by Aspergillus aculeatus CBS 115.80 shake flask ejqjeriments were performed on several substrates. Cross reactivity was found after transfer to thamnose in combination with galacturonic acid and on apple pectin, citrus pectin, beet pectin and sugar beet pulp. No cross reactivity was found after transfer to meda containing simple carbon sources such as sucrose, glucose, fiuctose, rhamnose or galacturonic acid. 

Autoclave extraction of sugar beet pulp yields gel-forming pectic hairy regions... 

To date, the structural features of pectic polysaccharides and plant cell walls have been studied extensively using chemical analysis and enzymatic degradation. In addition, research on isolation and physicochemical characterisation of pectin from citrus peels, apple peels, sunflower head residues and sugar beet pulp has been reported (2). However, the pectic polysaccharides extracted from wheat straw have only previously been reported by Przeszlakowska (3). The author extracted 0.44% pectic substances from Author to whom correspondence should be addressed. 

Enzymic release of ferulic acid from sugar beet pulp using a specific esterase from Aspergillus niger... 

KP pectin from sugar beet pulp was from Kobenhavns Pectinfabrik (Lille Skensved, Denmark). G-pectin was extracted from the whole sugar beet by Grindsted Products, Denmark. A preparation of modified hairy regions (MHR) was isolated from apple [5]. The non pectic acetylated substrates are described elsewhere [6,7,8]. 

For the purification of RHG, which has been described before (6), A. aculeatus was grown in sugar-beet pulp medium for 48 h. From a 2 1 culture containing 3.2 g protein, about 5 mg RHG was obtained after purification. Analysis by SDS-PAGE revealed only one band of about 55 kDa and thus the enzyme appeared to be pure. After N-glycanase treatment and SDS-PAGE analysis, a smaller protein band of about 46 kDa was visible (Fig.l). 

Leontowicz M, Gorinstein S, Bartnikowska E, Leontowicz H, Kulasek G and Trakhtenberg S. 2001. Sugar beet pulp and apple pomace dietary fibers improve lipid metabolism in rats fed cholesterol. Food Chem... 

The disposal of sugar beet pulp does not offer any very serious problem, since it can readily be dried and used as a cattle food and it is probable that all the available supplies are absorbed in this way. The utilization of molasses is discussed separately in Section VII. 

Turquois, T., Rinaudo, M., Taravel, F. R., Heyraud, A. (1999). Extraction of highly gelling pectic substances from sugar beet pulp and potato pulp influence of extrinsic parameters on their gelling properties. Food Hydrocolloids, 13,255-262. 

Sugar Beet Pulp" Calcium Carbonate Blast Furnace Slag" Lead b Concentrate Sandb Zinc Concentrate Ammonium Sulphate" Fine Salt" Crystals Chemicals"... 

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