Automated flow pH-method for the determination of total free fatty acids content in edible oils
► Automated flow pH-method. ► Determination of titratable acidity without titration. ► Edible oil analysis. ► We optimise parameters for the developed flow pH system. ► The results of the TA determination in the edible oils are statistically compared with the standard titration method. An automated...
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| Veröffentlicht in: | Food chemistry 2012-06, Vol.132 (3), p.1562-1565 |
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| container_title | Food chemistry |
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| creator | Gerasimenko, E.O. Tur’yan, Ya.I. |
| description | ► Automated flow pH-method. ► Determination of titratable acidity without titration. ► Edible oil analysis. ► We optimise parameters for the developed flow pH system. ► The results of the TA determination in the edible oils are statistically compared with the standard titration method.
An automated flow pH-method for the determination of titratable acidity (TA) in edible oil without titration is proposed, based on pH measurements on an oil sample emulsion in a suitable reagent. The developed flow pH system involves two constant rate flows: the flow of oils samples and the flow of reagent: triethanolamine+KNO3+H2O+i-PrOH, in which oils is insoluble. The flows are mixed in the mixer forming the emulsion in which the free fatty acids (FFA) extraction is started. Then, the emulsion is passed to the coil for completion of FFA extraction and thermostation and then forwarded to pH-cell for pH measurement. Using pH values and linear dependence of pH vs. log (TA) allows the TA determination.
The optimum parameters for the automated flow pH-system have been found, i.e., volumes of the mixer and the coils, the rate of sample and reagent, pH and TA ranges. The results of the TA determination in the edible oils were statistically compared with the standard titration method. |
| doi_str_mv | 10.1016/j.foodchem.2011.11.094 |
| format | Article |
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An automated flow pH-method for the determination of titratable acidity (TA) in edible oil without titration is proposed, based on pH measurements on an oil sample emulsion in a suitable reagent. The developed flow pH system involves two constant rate flows: the flow of oils samples and the flow of reagent: triethanolamine+KNO3+H2O+i-PrOH, in which oils is insoluble. The flows are mixed in the mixer forming the emulsion in which the free fatty acids (FFA) extraction is started. Then, the emulsion is passed to the coil for completion of FFA extraction and thermostation and then forwarded to pH-cell for pH measurement. Using pH values and linear dependence of pH vs. log (TA) allows the TA determination.
The optimum parameters for the automated flow pH-system have been found, i.e., volumes of the mixer and the coils, the rate of sample and reagent, pH and TA ranges. The results of the TA determination in the edible oils were statistically compared with the standard titration method.</description><identifier>ISSN: 0308-8146</identifier><identifier>EISSN: 1873-7072</identifier><identifier>DOI: 10.1016/j.foodchem.2011.11.094</identifier><identifier>PMID: 29243650</identifier><language>eng</language><publisher>England: Elsevier Ltd</publisher><subject>Acids extraction ; Automated ; Automated flow pH-method ; Edible oils ; Emulsions ; fatty acid composition ; Free fatty acids ; lipid content ; Mixers ; mixing ; Oil-reagent emulsion ; oils ; Samples ; Statistical analysis ; Statistical methods ; Tantalum ; Titratable acidity ; titration</subject><ispartof>Food chemistry, 2012-06, Vol.132 (3), p.1562-1565</ispartof><rights>2011</rights><rights>Published by Elsevier Ltd.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c425t-5cc252c68dc1431b01571da6df02f54490382220a24c032580849531adaf745e3</citedby><cites>FETCH-LOGICAL-c425t-5cc252c68dc1431b01571da6df02f54490382220a24c032580849531adaf745e3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S0308814611016785$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,776,780,3537,27901,27902,65306</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/29243650$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Gerasimenko, E.O.</creatorcontrib><creatorcontrib>Tur’yan, Ya.I.</creatorcontrib><title>Automated flow pH-method for the determination of total free fatty acids content in edible oils</title><title>Food chemistry</title><addtitle>Food Chem</addtitle><description>► Automated flow pH-method. ► Determination of titratable acidity without titration. ► Edible oil analysis. ► We optimise parameters for the developed flow pH system. ► The results of the TA determination in the edible oils are statistically compared with the standard titration method.
An automated flow pH-method for the determination of titratable acidity (TA) in edible oil without titration is proposed, based on pH measurements on an oil sample emulsion in a suitable reagent. The developed flow pH system involves two constant rate flows: the flow of oils samples and the flow of reagent: triethanolamine+KNO3+H2O+i-PrOH, in which oils is insoluble. The flows are mixed in the mixer forming the emulsion in which the free fatty acids (FFA) extraction is started. Then, the emulsion is passed to the coil for completion of FFA extraction and thermostation and then forwarded to pH-cell for pH measurement. Using pH values and linear dependence of pH vs. log (TA) allows the TA determination.
The optimum parameters for the automated flow pH-system have been found, i.e., volumes of the mixer and the coils, the rate of sample and reagent, pH and TA ranges. The results of the TA determination in the edible oils were statistically compared with the standard titration method.</description><subject>Acids extraction</subject><subject>Automated</subject><subject>Automated flow pH-method</subject><subject>Edible oils</subject><subject>Emulsions</subject><subject>fatty acid composition</subject><subject>Free fatty acids</subject><subject>lipid content</subject><subject>Mixers</subject><subject>mixing</subject><subject>Oil-reagent emulsion</subject><subject>oils</subject><subject>Samples</subject><subject>Statistical analysis</subject><subject>Statistical methods</subject><subject>Tantalum</subject><subject>Titratable acidity</subject><subject>titration</subject><issn>0308-8146</issn><issn>1873-7072</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2012</creationdate><recordtype>article</recordtype><recordid>eNqFkUFrGzEQhUVpadwkfyHVsZd1R1pppb01hKYpBHpocxayNKpldleuJLfk30fGSa-BgWHgezPDe4RcMVgzYMPn3Tqk5N0W5zUHxtatYBRvyIpp1XcKFH9LVtCD7jQTwxn5UMoOABqr35MzPnLRDxJWxFwfapptRU_DlP7R_V03Y92mNqZM6xapx4p5joutMS00BVpTtRMNGZEGW-sjtS76Ql1aKi6VxoWij5sJaYpTuSDvgp0KXj73c_Jw-_XXzV13_-Pb95vr-84JLmsnneOSu0F7x0TPNsCkYt4OPgAPUogRes05B8uFg55LDVqMsmfW26CExP6cfDrt3ef054ClmjkWh9NkF0yHYtiolNJcSXgdPd4a-x5kQ4cT6nIqJWMw-xxnmx8bZI45mJ15ycEcczCtWg5NePV847CZ0f-XvRjfgI8nINhk7O8ci3n42TYIAKaEFroRX04ENtv-RsymuIiLa-ZmdNX4FF_74gmDLaRO</recordid><startdate>20120601</startdate><enddate>20120601</enddate><creator>Gerasimenko, E.O.</creator><creator>Tur’yan, Ya.I.</creator><general>Elsevier Ltd</general><scope>FBQ</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7QQ</scope><scope>8FD</scope><scope>F28</scope><scope>FR3</scope><scope>JG9</scope><scope>7X8</scope></search><sort><creationdate>20120601</creationdate><title>Automated flow pH-method for the determination of total free fatty acids content in edible oils</title><author>Gerasimenko, E.O. ; Tur’yan, Ya.I.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c425t-5cc252c68dc1431b01571da6df02f54490382220a24c032580849531adaf745e3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2012</creationdate><topic>Acids extraction</topic><topic>Automated</topic><topic>Automated flow pH-method</topic><topic>Edible oils</topic><topic>Emulsions</topic><topic>fatty acid composition</topic><topic>Free fatty acids</topic><topic>lipid content</topic><topic>Mixers</topic><topic>mixing</topic><topic>Oil-reagent emulsion</topic><topic>oils</topic><topic>Samples</topic><topic>Statistical analysis</topic><topic>Statistical methods</topic><topic>Tantalum</topic><topic>Titratable acidity</topic><topic>titration</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Gerasimenko, E.O.</creatorcontrib><creatorcontrib>Tur’yan, Ya.I.</creatorcontrib><collection>AGRIS</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>Ceramic Abstracts</collection><collection>Technology Research Database</collection><collection>ANTE: Abstracts in New Technology & Engineering</collection><collection>Engineering Research Database</collection><collection>Materials Research Database</collection><collection>MEDLINE - Academic</collection><jtitle>Food chemistry</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Gerasimenko, E.O.</au><au>Tur’yan, Ya.I.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Automated flow pH-method for the determination of total free fatty acids content in edible oils</atitle><jtitle>Food chemistry</jtitle><addtitle>Food Chem</addtitle><date>2012-06-01</date><risdate>2012</risdate><volume>132</volume><issue>3</issue><spage>1562</spage><epage>1565</epage><pages>1562-1565</pages><issn>0308-8146</issn><eissn>1873-7072</eissn><abstract>► Automated flow pH-method. ► Determination of titratable acidity without titration. ► Edible oil analysis. ► We optimise parameters for the developed flow pH system. ► The results of the TA determination in the edible oils are statistically compared with the standard titration method.
An automated flow pH-method for the determination of titratable acidity (TA) in edible oil without titration is proposed, based on pH measurements on an oil sample emulsion in a suitable reagent. The developed flow pH system involves two constant rate flows: the flow of oils samples and the flow of reagent: triethanolamine+KNO3+H2O+i-PrOH, in which oils is insoluble. The flows are mixed in the mixer forming the emulsion in which the free fatty acids (FFA) extraction is started. Then, the emulsion is passed to the coil for completion of FFA extraction and thermostation and then forwarded to pH-cell for pH measurement. Using pH values and linear dependence of pH vs. log (TA) allows the TA determination.
The optimum parameters for the automated flow pH-system have been found, i.e., volumes of the mixer and the coils, the rate of sample and reagent, pH and TA ranges. The results of the TA determination in the edible oils were statistically compared with the standard titration method.</abstract><cop>England</cop><pub>Elsevier Ltd</pub><pmid>29243650</pmid><doi>10.1016/j.foodchem.2011.11.094</doi><tpages>4</tpages></addata></record> |
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| source | Elsevier ScienceDirect Journals |
| subjects | Acids extraction Automated Automated flow pH-method Edible oils Emulsions fatty acid composition Free fatty acids lipid content Mixers mixing Oil-reagent emulsion oils Samples Statistical analysis Statistical methods Tantalum Titratable acidity titration |
| title | Automated flow pH-method for the determination of total free fatty acids content in edible oils |
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