Use of Methanolysis for the Determination of Total Ellagic and Gallic Acid Contents of Wood and Food Products
Anhydrous methanolic HCl has been found to be an excellent reagent for releasing ellagic acid and gallic acid (as methyl gallate) from biomass substrates. Optimization of both the reaction conditions and the gradient HPLC analysis has led to the development of a new protocol. The method provides ell...
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| Veröffentlicht in: | Journal of agricultural and food chemistry 2001-03, Vol.49 (3), p.1165-1168 |
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| container_end_page | 1168 |
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| container_issue | 3 |
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| container_title | Journal of agricultural and food chemistry |
| container_volume | 49 |
| creator | Lei, Zhentian Jervis, Judith Helm, Richard F |
| description | Anhydrous methanolic HCl has been found to be an excellent reagent for releasing ellagic acid and gallic acid (as methyl gallate) from biomass substrates. Optimization of both the reaction conditions and the gradient HPLC analysis has led to the development of a new protocol. The method provides ellagic acid yields significantly higher than those obtained previously, indicating total ellagic acid contents of several substrates have previously been underestimated. Keywords: Ellagic acid; gallic acid; HPLC; ellagitannins; methanolysis; methyl gallate |
| doi_str_mv | 10.1021/jf000974a |
| format | Article |
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Optimization of both the reaction conditions and the gradient HPLC analysis has led to the development of a new protocol. The method provides ellagic acid yields significantly higher than those obtained previously, indicating total ellagic acid contents of several substrates have previously been underestimated. Keywords: Ellagic acid; gallic acid; HPLC; ellagitannins; methanolysis; methyl gallate</description><identifier>ISSN: 0021-8561</identifier><identifier>EISSN: 1520-5118</identifier><identifier>DOI: 10.1021/jf000974a</identifier><identifier>PMID: 11312829</identifier><identifier>CODEN: JAFCAU</identifier><language>eng</language><publisher>Washington, DC: American Chemical Society</publisher><subject>Agronomy. Soil science and plant productions ; Alcoholic Beverages - analysis ; Biological and medical sciences ; Chemical constitution ; Chromatography, High Pressure Liquid - methods ; Economic plant physiology ; Ellagic Acid - analysis ; Food Analysis - methods ; Food industries ; Fruit - chemistry ; Fruit and vegetable industries ; Fundamental and applied biological sciences. 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Agric. Food Chem</addtitle><description>Anhydrous methanolic HCl has been found to be an excellent reagent for releasing ellagic acid and gallic acid (as methyl gallate) from biomass substrates. Optimization of both the reaction conditions and the gradient HPLC analysis has led to the development of a new protocol. The method provides ellagic acid yields significantly higher than those obtained previously, indicating total ellagic acid contents of several substrates have previously been underestimated. Keywords: Ellagic acid; gallic acid; HPLC; ellagitannins; methanolysis; methyl gallate</description><subject>Agronomy. Soil science and plant productions</subject><subject>Alcoholic Beverages - analysis</subject><subject>Biological and medical sciences</subject><subject>Chemical constitution</subject><subject>Chromatography, High Pressure Liquid - methods</subject><subject>Economic plant physiology</subject><subject>Ellagic Acid - analysis</subject><subject>Food Analysis - methods</subject><subject>Food industries</subject><subject>Fruit - chemistry</subject><subject>Fruit and vegetable industries</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>Gallic Acid - analysis</subject><subject>Hydrochloric Acid</subject><subject>Indicators and Reagents</subject><subject>Methanol</subject><subject>Trees - chemistry</subject><subject>Wood</subject><issn>0021-8561</issn><issn>1520-5118</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2001</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNpt0MFu1DAQBmALgehSOPACyBICiUPAYydxcixLuwWKKLBVj9bEsWm2iV1sR6Jvj5ddLRdOM5r5NBr9hDwH9hYYh3cbyxhrZYkPyAIqzooKoHlIFiwvi6aq4Yg8iXGTUVNJ9pgcAQjgDW8XZLqKhnpLv5h0g86P93GI1PpA042hH0wyYRocpsG7rVr7hCM9HUf8OWiKrqcrHMfcnuihp0vvknEpbuW19_1fcLZtLoPvZ53iU_LI4hjNs309Jldnp-vleXHxdfVxeXJRYFmKVLQMmpZhbUyZB2XZV5JbDoxJrhEk9o2thRDQtV3NWy64bWyH2gheNlB2VhyT17u7d8H_mk1MahqiNvlvZ_wclZRMAlRNhm92UAcfYzBW3YVhwnCvgKlttuqQbbYv9kfnbjL9P7kPM4OXe4BR42gDOj3Eg2tFW7dVVsVODTGZ34cthltVSyErtb78oT5V199X78-_qc_Zv9p51FFt_BxcTu4_7_0Bu6CapA</recordid><startdate>20010301</startdate><enddate>20010301</enddate><creator>Lei, Zhentian</creator><creator>Jervis, Judith</creator><creator>Helm, Richard F</creator><general>American Chemical Society</general><scope>BSCLL</scope><scope>IQODW</scope><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope></search><sort><creationdate>20010301</creationdate><title>Use of Methanolysis for the Determination of Total Ellagic and Gallic Acid Contents of Wood and Food Products</title><author>Lei, Zhentian ; Jervis, Judith ; Helm, Richard F</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a443t-901890a6ee4a4444d572f210072ca17ad8f63331b9b629232f8fbace324814bf3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2001</creationdate><topic>Agronomy. Soil science and plant productions</topic><topic>Alcoholic Beverages - analysis</topic><topic>Biological and medical sciences</topic><topic>Chemical constitution</topic><topic>Chromatography, High Pressure Liquid - methods</topic><topic>Economic plant physiology</topic><topic>Ellagic Acid - analysis</topic><topic>Food Analysis - methods</topic><topic>Food industries</topic><topic>Fruit - chemistry</topic><topic>Fruit and vegetable industries</topic><topic>Fundamental and applied biological sciences. Psychology</topic><topic>Gallic Acid - analysis</topic><topic>Hydrochloric Acid</topic><topic>Indicators and Reagents</topic><topic>Methanol</topic><topic>Trees - chemistry</topic><topic>Wood</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Lei, Zhentian</creatorcontrib><creatorcontrib>Jervis, Judith</creatorcontrib><creatorcontrib>Helm, Richard F</creatorcontrib><collection>Istex</collection><collection>Pascal-Francis</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>Journal of agricultural and food chemistry</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Lei, Zhentian</au><au>Jervis, Judith</au><au>Helm, Richard F</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Use of Methanolysis for the Determination of Total Ellagic and Gallic Acid Contents of Wood and Food Products</atitle><jtitle>Journal of agricultural and food chemistry</jtitle><addtitle>J. Agric. Food Chem</addtitle><date>2001-03-01</date><risdate>2001</risdate><volume>49</volume><issue>3</issue><spage>1165</spage><epage>1168</epage><pages>1165-1168</pages><issn>0021-8561</issn><eissn>1520-5118</eissn><coden>JAFCAU</coden><abstract>Anhydrous methanolic HCl has been found to be an excellent reagent for releasing ellagic acid and gallic acid (as methyl gallate) from biomass substrates. Optimization of both the reaction conditions and the gradient HPLC analysis has led to the development of a new protocol. The method provides ellagic acid yields significantly higher than those obtained previously, indicating total ellagic acid contents of several substrates have previously been underestimated. Keywords: Ellagic acid; gallic acid; HPLC; ellagitannins; methanolysis; methyl gallate</abstract><cop>Washington, DC</cop><pub>American Chemical Society</pub><pmid>11312829</pmid><doi>10.1021/jf000974a</doi><tpages>4</tpages></addata></record> |
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| ispartof | Journal of agricultural and food chemistry, 2001-03, Vol.49 (3), p.1165-1168 |
| issn | 0021-8561 1520-5118 |
| language | eng |
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| source | MEDLINE; ACS Publications |
| subjects | Agronomy. Soil science and plant productions Alcoholic Beverages - analysis Biological and medical sciences Chemical constitution Chromatography, High Pressure Liquid - methods Economic plant physiology Ellagic Acid - analysis Food Analysis - methods Food industries Fruit - chemistry Fruit and vegetable industries Fundamental and applied biological sciences. Psychology Gallic Acid - analysis Hydrochloric Acid Indicators and Reagents Methanol Trees - chemistry Wood |
| title | Use of Methanolysis for the Determination of Total Ellagic and Gallic Acid Contents of Wood and Food Products |
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