Adsorptive separation of fructose and glucose from an agroindustrial waste of cashew industry
Nearly all agroindustrial wastes have appreciable sugar content including cashew apples ( Anacardium occidentale, L.), which are an important sub-utilized biomass source in Northeastern Brazil. Adsorption in fixed bed, both in batch and continuous modes, is a low-cost separation technique, which has...
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| Veröffentlicht in: | Bioresource technology 2008-05, Vol.99 (7), p.2455-2465 |
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| creator | Luz, D.A. Rodrigues, A.K.O. Silva, F.R.C. Torres, A.E.B. Cavalcante, C.L. Brito, E.S. Azevedo, D.C.S. |
| description | Nearly all agroindustrial wastes have appreciable sugar content including cashew apples (
Anacardium occidentale, L.), which are an important sub-utilized biomass source in Northeastern Brazil. Adsorption in fixed bed, both in batch and continuous modes, is a low-cost separation technique, which has been widely used in the concentration, separation and purification of bioproducts, such as sugars. The present work is an experimental study aimed at measuring responses in fixed bed, needed for design purposes. Two commercial ion-exchange resins were studied: DOWEX Monosphere 99/Ca and DIAION UBK555. The adsorbents showed linear isotherms for both sugars with marked selectivity for fructose (2.2 for DOWEX and 1.5 for DIAION). A mathematical model was used to estimate kinetic parameters and predict breakthrough behaviour of binary solutions and complex feeds. The kinetics of mass transfer was well described by a linear driving force approximation (LDF) and estimated kinetic constants were around 1
min
−1. The results indicate that the use of independent experiments with synthetic monocomponent solutions leads to reliable parameters, and the model is capable to foresee reasonably well the breakthrough curve of the sugars present in the juice, under different purification conditions. The use of complex feeds led to overshoot behaviour, possibly due to the irreversible adsorption of oligosaccharides. |
| doi_str_mv | 10.1016/j.biortech.2007.04.063 |
| format | Article |
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Anacardium occidentale, L.), which are an important sub-utilized biomass source in Northeastern Brazil. Adsorption in fixed bed, both in batch and continuous modes, is a low-cost separation technique, which has been widely used in the concentration, separation and purification of bioproducts, such as sugars. The present work is an experimental study aimed at measuring responses in fixed bed, needed for design purposes. Two commercial ion-exchange resins were studied: DOWEX Monosphere 99/Ca and DIAION UBK555. The adsorbents showed linear isotherms for both sugars with marked selectivity for fructose (2.2 for DOWEX and 1.5 for DIAION). A mathematical model was used to estimate kinetic parameters and predict breakthrough behaviour of binary solutions and complex feeds. The kinetics of mass transfer was well described by a linear driving force approximation (LDF) and estimated kinetic constants were around 1
min
−1. The results indicate that the use of independent experiments with synthetic monocomponent solutions leads to reliable parameters, and the model is capable to foresee reasonably well the breakthrough curve of the sugars present in the juice, under different purification conditions. The use of complex feeds led to overshoot behaviour, possibly due to the irreversible adsorption of oligosaccharides.</description><identifier>ISSN: 0960-8524</identifier><identifier>EISSN: 1873-2976</identifier><identifier>DOI: 10.1016/j.biortech.2007.04.063</identifier><identifier>PMID: 17600702</identifier><language>eng</language><publisher>Oxford: Elsevier Ltd</publisher><subject>Adsorption ; Agronomy. Soil science and plant productions ; Anacardium ; Anacardium occidentale ; Biological and medical sciences ; Breakthrough curves ; Cashew apple juice ; Food Industry ; Fructose ; Fructose - isolation & purification ; Fundamental and applied biological sciences. Psychology ; General agronomy. Plant production ; Glucose - isolation & purification ; Industrial Waste ; Ion-exchange resins ; Kinetics ; Nuts ; Sensitivity and Specificity ; Use of agricultural and forest wastes. Biomass use, bioconversion</subject><ispartof>Bioresource technology, 2008-05, Vol.99 (7), p.2455-2465</ispartof><rights>2007 Elsevier Ltd</rights><rights>2008 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c451t-a1edc76ea6eaa171bfe0b1582395647ee5dd3e8202bba7aa71ac6157444346383</citedby><cites>FETCH-LOGICAL-c451t-a1edc76ea6eaa171bfe0b1582395647ee5dd3e8202bba7aa71ac6157444346383</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S0960852407004129$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,776,780,3537,27901,27902,65534</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=20118640$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/17600702$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Luz, D.A.</creatorcontrib><creatorcontrib>Rodrigues, A.K.O.</creatorcontrib><creatorcontrib>Silva, F.R.C.</creatorcontrib><creatorcontrib>Torres, A.E.B.</creatorcontrib><creatorcontrib>Cavalcante, C.L.</creatorcontrib><creatorcontrib>Brito, E.S.</creatorcontrib><creatorcontrib>Azevedo, D.C.S.</creatorcontrib><title>Adsorptive separation of fructose and glucose from an agroindustrial waste of cashew industry</title><title>Bioresource technology</title><addtitle>Bioresour Technol</addtitle><description>Nearly all agroindustrial wastes have appreciable sugar content including cashew apples (
Anacardium occidentale, L.), which are an important sub-utilized biomass source in Northeastern Brazil. Adsorption in fixed bed, both in batch and continuous modes, is a low-cost separation technique, which has been widely used in the concentration, separation and purification of bioproducts, such as sugars. The present work is an experimental study aimed at measuring responses in fixed bed, needed for design purposes. Two commercial ion-exchange resins were studied: DOWEX Monosphere 99/Ca and DIAION UBK555. The adsorbents showed linear isotherms for both sugars with marked selectivity for fructose (2.2 for DOWEX and 1.5 for DIAION). A mathematical model was used to estimate kinetic parameters and predict breakthrough behaviour of binary solutions and complex feeds. The kinetics of mass transfer was well described by a linear driving force approximation (LDF) and estimated kinetic constants were around 1
min
−1. The results indicate that the use of independent experiments with synthetic monocomponent solutions leads to reliable parameters, and the model is capable to foresee reasonably well the breakthrough curve of the sugars present in the juice, under different purification conditions. The use of complex feeds led to overshoot behaviour, possibly due to the irreversible adsorption of oligosaccharides.</description><subject>Adsorption</subject><subject>Agronomy. Soil science and plant productions</subject><subject>Anacardium</subject><subject>Anacardium occidentale</subject><subject>Biological and medical sciences</subject><subject>Breakthrough curves</subject><subject>Cashew apple juice</subject><subject>Food Industry</subject><subject>Fructose</subject><subject>Fructose - isolation & purification</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>General agronomy. Plant production</subject><subject>Glucose - isolation & purification</subject><subject>Industrial Waste</subject><subject>Ion-exchange resins</subject><subject>Kinetics</subject><subject>Nuts</subject><subject>Sensitivity and Specificity</subject><subject>Use of agricultural and forest wastes. 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Soil science and plant productions</topic><topic>Anacardium</topic><topic>Anacardium occidentale</topic><topic>Biological and medical sciences</topic><topic>Breakthrough curves</topic><topic>Cashew apple juice</topic><topic>Food Industry</topic><topic>Fructose</topic><topic>Fructose - isolation & purification</topic><topic>Fundamental and applied biological sciences. Psychology</topic><topic>General agronomy. Plant production</topic><topic>Glucose - isolation & purification</topic><topic>Industrial Waste</topic><topic>Ion-exchange resins</topic><topic>Kinetics</topic><topic>Nuts</topic><topic>Sensitivity and Specificity</topic><topic>Use of agricultural and forest wastes. 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Anacardium occidentale, L.), which are an important sub-utilized biomass source in Northeastern Brazil. Adsorption in fixed bed, both in batch and continuous modes, is a low-cost separation technique, which has been widely used in the concentration, separation and purification of bioproducts, such as sugars. The present work is an experimental study aimed at measuring responses in fixed bed, needed for design purposes. Two commercial ion-exchange resins were studied: DOWEX Monosphere 99/Ca and DIAION UBK555. The adsorbents showed linear isotherms for both sugars with marked selectivity for fructose (2.2 for DOWEX and 1.5 for DIAION). A mathematical model was used to estimate kinetic parameters and predict breakthrough behaviour of binary solutions and complex feeds. The kinetics of mass transfer was well described by a linear driving force approximation (LDF) and estimated kinetic constants were around 1
min
−1. The results indicate that the use of independent experiments with synthetic monocomponent solutions leads to reliable parameters, and the model is capable to foresee reasonably well the breakthrough curve of the sugars present in the juice, under different purification conditions. The use of complex feeds led to overshoot behaviour, possibly due to the irreversible adsorption of oligosaccharides.</abstract><cop>Oxford</cop><pub>Elsevier Ltd</pub><pmid>17600702</pmid><doi>10.1016/j.biortech.2007.04.063</doi><tpages>11</tpages></addata></record> |
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| ispartof | Bioresource technology, 2008-05, Vol.99 (7), p.2455-2465 |
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| source | MEDLINE; Elsevier ScienceDirect Journals |
| subjects | Adsorption Agronomy. Soil science and plant productions Anacardium Anacardium occidentale Biological and medical sciences Breakthrough curves Cashew apple juice Food Industry Fructose Fructose - isolation & purification Fundamental and applied biological sciences. Psychology General agronomy. Plant production Glucose - isolation & purification Industrial Waste Ion-exchange resins Kinetics Nuts Sensitivity and Specificity Use of agricultural and forest wastes. Biomass use, bioconversion |
| title | Adsorptive separation of fructose and glucose from an agroindustrial waste of cashew industry |
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