Cellulose extraction from orange peel using sulfite digestion reagents.
Identifieur interne : 001785 ( Main/Exploration ); précédent : 001784; suivant : 001786Cellulose extraction from orange peel using sulfite digestion reagents.
Auteurs : Ioan Bicu [Roumanie] ; Fanica MustataSource :
- Bioresource technology [ 1873-2976 ] ; 2011.
English descriptors
- KwdEn :
- MESH :
- chemical , analysis : Waste Products.
- chemical , chemistry : Indicators and Reagents, Sulfites.
- chemical , isolation & purification : Cellulose.
- chemistry : Citrus sinensis.
- methods : Biotechnology.
- Models, Chemical, Spectroscopy, Fourier Transform Infrared.
Abstract
Orange peel (OP) was used as raw material for cellulose extraction. Two different pulping reagents were used, sodium sulfite and sodium metabisulfite. The effect of the main process parameters, sulfite agent dosage and reaction duration, on cellulose yield was investigated. A central composite rotatable design involving two variables at five levels and response surface methodology were used for the optimization of cellulose recovery. Other two invariable parameters were reaction temperature and hydromodulus. The optimum yields, referred to the weight of double extracted OP, were 40.4% and 45.2% for sodium sulfite and sodium metabisulfite digestions, respectively. The crude celluloses were bleached with hypochlorite and oxygen. The physicochemical characterization data of these cellulose materials indicate good levels of purity, low crystallinities, good whitenesses, good water retention and moderate molecular weights. According to these specific properties the recovered celluloses could be used as fillers, water absorbents, or as raw materials for cellulose derivatives.
DOI: 10.1016/j.biortech.2011.08.041
PubMed: 21893413
Affiliations:
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Le document en format XML
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Ghica Voda Nr. 41A, Iasi 700487, Romania. ibicu@icmpp.ro</nlm:affiliation><country xml:lang="fr">Roumanie</country><wicri:regionArea>Petru Poni Institute of Macromolecular Chemistry, Aleea Gr. Ghica Voda Nr. 41A, Iasi 700487</wicri:regionArea><wicri:noRegion>Iasi 700487</wicri:noRegion></affiliation></author><author><name sortKey="Mustata, Fanica" sort="Mustata, Fanica" uniqKey="Mustata F" first="Fanica" last="Mustata">Fanica Mustata</name></author></analytic><series><title level="j">Bioresource technology</title><idno type="eISSN">1873-2976</idno><imprint><date when="2011" type="published">2011</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Biotechnology (methods)</term><term>Cellulose (isolation & purification)</term><term>Citrus sinensis (chemistry)</term><term>Indicators and Reagents (chemistry)</term><term>Models, Chemical</term><term>Spectroscopy, Fourier Transform Infrared</term><term>Sulfites (chemistry)</term><term>Waste Products (analysis)</term></keywords><keywords scheme="MESH" type="chemical" qualifier="analysis" xml:lang="en"><term>Waste Products</term></keywords><keywords scheme="MESH" type="chemical" qualifier="chemistry" xml:lang="en"><term>Indicators and Reagents</term><term>Sulfites</term></keywords><keywords scheme="MESH" type="chemical" qualifier="isolation & purification" xml:lang="en"><term>Cellulose</term></keywords><keywords scheme="MESH" qualifier="chemistry" xml:lang="en"><term>Citrus sinensis</term></keywords><keywords scheme="MESH" qualifier="methods" xml:lang="en"><term>Biotechnology</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Models, Chemical</term><term>Spectroscopy, Fourier Transform Infrared</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Orange peel (OP) was used as raw material for cellulose extraction. Two different pulping reagents were used, sodium sulfite and sodium metabisulfite. The effect of the main process parameters, sulfite agent dosage and reaction duration, on cellulose yield was investigated. A central composite rotatable design involving two variables at five levels and response surface methodology were used for the optimization of cellulose recovery. Other two invariable parameters were reaction temperature and hydromodulus. The optimum yields, referred to the weight of double extracted OP, were 40.4% and 45.2% for sodium sulfite and sodium metabisulfite digestions, respectively. The crude celluloses were bleached with hypochlorite and oxygen. The physicochemical characterization data of these cellulose materials indicate good levels of purity, low crystallinities, good whitenesses, good water retention and moderate molecular weights. According to these specific properties the recovered celluloses could be used as fillers, water absorbents, or as raw materials for cellulose derivatives.</div></front></TEI><affiliations><list><country><li>Roumanie</li></country></list><tree><noCountry><name sortKey="Mustata, Fanica" sort="Mustata, Fanica" uniqKey="Mustata F" first="Fanica" last="Mustata">Fanica Mustata</name></noCountry><country name="Roumanie"><noRegion><name sortKey="Bicu, Ioan" sort="Bicu, Ioan" uniqKey="Bicu I" first="Ioan" last="Bicu">Ioan Bicu</name></noRegion></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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