Detection of irradiated fruits by gas-chromatographic methods
To detect those fruits which have been subjected to low-dose irradiation (0.5-3 kGy), two methods of chromatography (GC-MS and LC-LC-GC-FID) were used to determine the radiolytic compounds of lipids formed after irradiation, such as alkanes and alkenes. Extraction of volatile hydrocarbon compounds f...
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| Veröffentlicht in: | Zeitschrift f r Lebensmittel-Untersuchung und -Forschung 1996-01, Vol.202 (6), p.451-457 |
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| container_title | Zeitschrift f r Lebensmittel-Untersuchung und -Forschung |
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| creator | FARAG, S. E.-D. A |
| description | To detect those fruits which have been subjected to low-dose irradiation (0.5-3 kGy), two methods of chromatography (GC-MS and LC-LC-GC-FID) were used to determine the radiolytic compounds of lipids formed after irradiation, such as alkanes and alkenes. Extraction of volatile hydrocarbon compounds from some parts of irradiated fruits, e.g. the flesh (avocado), seeds (papaya) and kernels (mango and apricot) was carried out. The analysis of hydrocarbons by GC-MS proved the suitability of using C17:1, C16:2, C15:0 and C14:1 as markers for avocados irradiated with a low dose (0.75 kGy). The same indicators appeared following the analysis of papayas and mangoes irradiated with 1.5, and 3.0 kGy. Also, C15:0, C14:1 and C16:3 can be used to identify apricots irradiated with a low dose (0.5 kGy). The detection of alkenes was only improved by a more selective isolation, e.g. of dienes or trienes by LC-LC-GC-FID. Within a few minutes, apricots and avocados irradiated at low doses (0.5 and 0.75 kGy) can be recognized by the indicators C16:2, C17:2 and C16:3, without interfering peaks. In all cases, C16:1, C16:2, C16:3 as well as significant amounts of C17:2 can be used as markers for fruit irradiation. |
| doi_str_mv | 10.1007/BF01197264 |
| format | Article |
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Within a few minutes, apricots and avocados irradiated at low doses (0.5 and 0.75 kGy) can be recognized by the indicators C16:2, C17:2 and C16:3, without interfering peaks. In all cases, C16:1, C16:2, C16:3 as well as significant amounts of C17:2 can be used as markers for fruit irradiation.</description><identifier>ISSN: 0044-3026</identifier><identifier>EISSN: 1438-2385</identifier><identifier>DOI: 10.1007/BF01197264</identifier><identifier>PMID: 8711951</identifier><identifier>CODEN: ZLUFAR</identifier><language>eng</language><publisher>Berlin: Springer</publisher><subject>Alkenes - analysis ; Biological and medical sciences ; Chromatography, Gas - methods ; Food industries ; Food Irradiation ; Fruit ; Fruit and vegetable industries ; Fundamental and applied biological sciences. 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E.-D. A</creatorcontrib><title>Detection of irradiated fruits by gas-chromatographic methods</title><title>Zeitschrift f r Lebensmittel-Untersuchung und -Forschung</title><addtitle>Z Lebensm Unters Forsch</addtitle><description>To detect those fruits which have been subjected to low-dose irradiation (0.5-3 kGy), two methods of chromatography (GC-MS and LC-LC-GC-FID) were used to determine the radiolytic compounds of lipids formed after irradiation, such as alkanes and alkenes. Extraction of volatile hydrocarbon compounds from some parts of irradiated fruits, e.g. the flesh (avocado), seeds (papaya) and kernels (mango and apricot) was carried out. The analysis of hydrocarbons by GC-MS proved the suitability of using C17:1, C16:2, C15:0 and C14:1 as markers for avocados irradiated with a low dose (0.75 kGy). The same indicators appeared following the analysis of papayas and mangoes irradiated with 1.5, and 3.0 kGy. Also, C15:0, C14:1 and C16:3 can be used to identify apricots irradiated with a low dose (0.5 kGy). The detection of alkenes was only improved by a more selective isolation, e.g. of dienes or trienes by LC-LC-GC-FID. Within a few minutes, apricots and avocados irradiated at low doses (0.5 and 0.75 kGy) can be recognized by the indicators C16:2, C17:2 and C16:3, without interfering peaks. In all cases, C16:1, C16:2, C16:3 as well as significant amounts of C17:2 can be used as markers for fruit irradiation.</description><subject>Alkenes - analysis</subject><subject>Biological and medical sciences</subject><subject>Chromatography, Gas - methods</subject><subject>Food industries</subject><subject>Food Irradiation</subject><subject>Fruit</subject><subject>Fruit and vegetable industries</subject><subject>Fundamental and applied biological sciences. 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Psychology</topic><topic>Gas Chromatography-Mass Spectrometry - methods</topic><topic>Hydrocarbons - analysis</topic><topic>Radiation Dosage</topic><topic>Seeds</topic><topic>Vegetables</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>FARAG, S. E.-D. A</creatorcontrib><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><jtitle>Zeitschrift f r Lebensmittel-Untersuchung und -Forschung</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>FARAG, S. E.-D. A</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Detection of irradiated fruits by gas-chromatographic methods</atitle><jtitle>Zeitschrift f r Lebensmittel-Untersuchung und -Forschung</jtitle><addtitle>Z Lebensm Unters Forsch</addtitle><date>1996-01-01</date><risdate>1996</risdate><volume>202</volume><issue>6</issue><spage>451</spage><epage>457</epage><pages>451-457</pages><issn>0044-3026</issn><eissn>1438-2385</eissn><coden>ZLUFAR</coden><abstract>To detect those fruits which have been subjected to low-dose irradiation (0.5-3 kGy), two methods of chromatography (GC-MS and LC-LC-GC-FID) were used to determine the radiolytic compounds of lipids formed after irradiation, such as alkanes and alkenes. Extraction of volatile hydrocarbon compounds from some parts of irradiated fruits, e.g. the flesh (avocado), seeds (papaya) and kernels (mango and apricot) was carried out. The analysis of hydrocarbons by GC-MS proved the suitability of using C17:1, C16:2, C15:0 and C14:1 as markers for avocados irradiated with a low dose (0.75 kGy). The same indicators appeared following the analysis of papayas and mangoes irradiated with 1.5, and 3.0 kGy. Also, C15:0, C14:1 and C16:3 can be used to identify apricots irradiated with a low dose (0.5 kGy). The detection of alkenes was only improved by a more selective isolation, e.g. of dienes or trienes by LC-LC-GC-FID. Within a few minutes, apricots and avocados irradiated at low doses (0.5 and 0.75 kGy) can be recognized by the indicators C16:2, C17:2 and C16:3, without interfering peaks. In all cases, C16:1, C16:2, C16:3 as well as significant amounts of C17:2 can be used as markers for fruit irradiation.</abstract><cop>Berlin</cop><pub>Springer</pub><pmid>8711951</pmid><doi>10.1007/BF01197264</doi><tpages>7</tpages></addata></record> |
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| identifier | ISSN: 0044-3026 |
| ispartof | Zeitschrift f r Lebensmittel-Untersuchung und -Forschung, 1996-01, Vol.202 (6), p.451-457 |
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| language | eng |
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| source | MEDLINE; SpringerLink Journals - AutoHoldings |
| subjects | Alkenes - analysis Biological and medical sciences Chromatography, Gas - methods Food industries Food Irradiation Fruit Fruit and vegetable industries Fundamental and applied biological sciences. Psychology Gas Chromatography-Mass Spectrometry - methods Hydrocarbons - analysis Radiation Dosage Seeds Vegetables |
| title | Detection of irradiated fruits by gas-chromatographic methods |
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