Optimization of isolation of cellulose from orange peel using sodium hydroxide and chelating agents.
Identifieur interne : 000D69 ( Main/Exploration ); précédent : 000D68; suivant : 000D70Optimization of isolation of cellulose from orange peel using sodium hydroxide and chelating agents.
Auteurs : Ioan Bicu [Roumanie] ; Fanica MustataSource :
- Carbohydrate polymers [ 1879-1344 ] ; 2013.
English descriptors
- KwdEn :
- MESH :
- chemical , chemistry : Cellulose, Chelating Agents, Sodium Hydroxide.
- chemical , isolation & purification : Cellulose.
- chemistry : Citrus sinensis, Plant Epidermis.
- methods : Chemical Fractionation.
- Hydrogen-Ion Concentration, Models, Theoretical.
Abstract
Response surface methodology was used to optimize cellulose recovery from orange peel using sodium hydroxide (NaOH) as isolation reagent, and to minimize its ash content using ethylenediaminetetraacetic acid (EDTA) as chelating agent. The independent variables were NaOH charge, EDTA charge and cooking time. Other two constant parameters were cooking temperature (98 °C) and liquid-to-solid ratio (7.5). The dependent variables were cellulose yield and ash content. A second-order polynomial model was used for plotting response surfaces and for determining optimum cooking conditions. The analysis of coefficient values for independent variables in the regression equation showed that NaOH and EDTA charges were major factors influencing the cellulose yield and ash content, respectively. Optimum conditions were defined by: NaOH charge 38.2%, EDTA charge 9.56%, and cooking time 317 min. The predicted cellulose yield was 24.06% and ash content 0.69%. A good agreement between the experimental values and the predicted was observed.
DOI: 10.1016/j.carbpol.2013.06.009
PubMed: 23987353
Affiliations:
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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">Carbohydrate polymers</title><idno type="eISSN">1879-1344</idno><imprint><date when="2013" type="published">2013</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Cellulose (chemistry)</term><term>Cellulose (isolation & purification)</term><term>Chelating Agents (chemistry)</term><term>Chemical Fractionation (methods)</term><term>Citrus sinensis (chemistry)</term><term>Hydrogen-Ion Concentration</term><term>Models, Theoretical</term><term>Plant Epidermis (chemistry)</term><term>Sodium Hydroxide (chemistry)</term></keywords><keywords scheme="MESH" type="chemical" qualifier="chemistry" xml:lang="en"><term>Cellulose</term><term>Chelating Agents</term><term>Sodium Hydroxide</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><term>Plant Epidermis</term></keywords><keywords scheme="MESH" qualifier="methods" xml:lang="en"><term>Chemical Fractionation</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Hydrogen-Ion Concentration</term><term>Models, Theoretical</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Response surface methodology was used to optimize cellulose recovery from orange peel using sodium hydroxide (NaOH) as isolation reagent, and to minimize its ash content using ethylenediaminetetraacetic acid (EDTA) as chelating agent. The independent variables were NaOH charge, EDTA charge and cooking time. Other two constant parameters were cooking temperature (98 °C) and liquid-to-solid ratio (7.5). The dependent variables were cellulose yield and ash content. A second-order polynomial model was used for plotting response surfaces and for determining optimum cooking conditions. The analysis of coefficient values for independent variables in the regression equation showed that NaOH and EDTA charges were major factors influencing the cellulose yield and ash content, respectively. Optimum conditions were defined by: NaOH charge 38.2%, EDTA charge 9.56%, and cooking time 317 min. The predicted cellulose yield was 24.06% and ash content 0.69%. A good agreement between the experimental values and the predicted was observed.</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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