Plant sterols in vegetables, fruits and berries
Identifieur interne : 002A78 ( Main/Exploration ); précédent : 002A77; suivant : 002A79Plant sterols in vegetables, fruits and berries
Auteurs : Vieno Piironen [Finlande] ; Jari Toivo [Finlande] ; Riitta Puupponen-Pimi [Finlande] ; Anna-Maija Lampi [Finlande]Source :
- Journal of the Science of Food and Agriculture [ 0022-5142 ] ; 2003-03.
English descriptors
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Abstract
The plant sterol contents of the most important vegetables, fruits and berries available in Finland were determined by capillary gas chromatography. The sample preparation procedure included both acid and alkaline hydrolysis to liberate sterols from their conjugates. The plant sterol contents of fresh vegetables ranged from 51 to 370 mg kg−1 fresh weight (fw) in samples obtained from retail sale. The highest contents (>300 mg kg−1) were measured in broccoli, Brussels sprouts, cauliflower and dill and the lowest (51 mg kg−1) in potato. The range of sterol contents on a dry weight (dw) basis was high, 246–4100 mg kg−1 dw. Considerable variation was also observed when individual samples of some vegetables were compared. Sitosterol was the main sterol (proportion 43–86%) in all vegetables except cucumber and spinach, in which Δ7‐sterols dominated. The total sterol contents were in the range 116–228 mg kg−1 fw in all fresh fruits except avocado, which contained more sterols, 752 mg kg−1 fw. In fresh berries the corresponding range was 60–279 m kg−1 fw. The wild berries lingonberry and blueberry were better plant sterol sources than the cultivated berries blackcurrant, redcurrant and strawberry. In fruits and berries the proportion of sitosterol ranged from 61–93% total sterols. On the basis of the results, the contribution of vegetables, fruits and berries to the total average daily plant sterol intake was estimated to be ca 60 mg. © 2003 Society of Chemical Industry
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DOI: 10.1002/jsfa.1316
Affiliations:
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Sci. Food Agric.</title><idno type="ISSN">0022-5142</idno><idno type="eISSN">1097-0010</idno><imprint><publisher>John Wiley & Sons, Ltd.</publisher><pubPlace>Chichester, UK</pubPlace><date type="published" when="2003-03">2003-03</date><biblScope unit="volume">83</biblScope><biblScope unit="issue">4</biblScope><biblScope unit="page" from="330">330</biblScope><biblScope unit="page" to="337">337</biblScope></imprint><idno type="ISSN">0022-5142</idno></series><idno type="istex">8C36270BB937DBEC4AA015657F5BD80659B3115F</idno><idno type="DOI">10.1002/jsfa.1316</idno><idno type="ArticleID">JSFA1316</idno></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0022-5142</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>berries</term><term>fruits</term><term>phytosterols</term><term>plant sterols</term><term>vegetables</term></keywords></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">The plant sterol contents of the most important vegetables, fruits and berries available in Finland were determined by capillary gas chromatography. The sample preparation procedure included both acid and alkaline hydrolysis to liberate sterols from their conjugates. The plant sterol contents of fresh vegetables ranged from 51 to 370 mg kg−1 fresh weight (fw) in samples obtained from retail sale. The highest contents (>300 mg kg−1) were measured in broccoli, Brussels sprouts, cauliflower and dill and the lowest (51 mg kg−1) in potato. The range of sterol contents on a dry weight (dw) basis was high, 246–4100 mg kg−1 dw. Considerable variation was also observed when individual samples of some vegetables were compared. Sitosterol was the main sterol (proportion 43–86%) in all vegetables except cucumber and spinach, in which Δ7‐sterols dominated. The total sterol contents were in the range 116–228 mg kg−1 fw in all fresh fruits except avocado, which contained more sterols, 752 mg kg−1 fw. In fresh berries the corresponding range was 60–279 m kg−1 fw. The wild berries lingonberry and blueberry were better plant sterol sources than the cultivated berries blackcurrant, redcurrant and strawberry. In fruits and berries the proportion of sitosterol ranged from 61–93% total sterols. On the basis of the results, the contribution of vegetables, fruits and berries to the total average daily plant sterol intake was estimated to be ca 60 mg. © 2003 Society of Chemical Industry</div></front></TEI><affiliations><list><country><li>Finlande</li></country><region><li>Uusimaa</li></region><settlement><li>Helsinki</li></settlement><orgName><li>Université d'Helsinki</li></orgName></list><tree><country name="Finlande"><region name="Uusimaa"><name sortKey="Piironen, Vieno" sort="Piironen, Vieno" uniqKey="Piironen V" first="Vieno" last="Piironen">Vieno Piironen</name></region><name sortKey="Lampi, Anna Aija" sort="Lampi, Anna Aija" uniqKey="Lampi A" first="Anna-Maija" last="Lampi">Anna-Maija Lampi</name><name sortKey="Puupponen Imi, Riitta" sort="Puupponen Imi, Riitta" uniqKey="Puupponen Imi R" first="Riitta" last="Puupponen-Pimi">Riitta Puupponen-Pimi</name><name sortKey="Toivo, Jari" sort="Toivo, Jari" uniqKey="Toivo J" first="Jari" last="Toivo">Jari Toivo</name><name sortKey="Toivo, Jari" sort="Toivo, Jari" uniqKey="Toivo J" first="Jari" last="Toivo">Jari Toivo</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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