Fatty acid profile, tocopherol, squalene and phytosterol content of walnuts, almonds, peanuts, hazelnuts and the macadamia nut

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TY  - JOUR
  - Maguire, L. S. and O'Sullivan, S. M. and Galvin, K. and O'Connor, T. P. and O'Brien, N. M.
  - 2004
  - International Journal of Food Sciences and Nutrition
  - Fatty acid profile, tocopherol, squalene and phytosterol content of walnuts, almonds, peanuts, hazelnuts and the macadamia nut
  - Validated
  - ()
  - 55
  - 3
  - 171
  - 178
  - Nuts are high in fat but have a fatty acid profile that may be beneficial in relation to risk of coronary heart disease. Nuts also contain other potentially cardioprotective constituents including phytosterols, tocopherols and squalene. In the present study, the total oil content, peroxide value, composition of fatty acids, tocopherols, phytosterols and squalene content were determined in the oil extracted from freshly ground walnuts, almonds, peanuts, hazelnuts and the macadamia nut. The total oil content of the nuts ranged from 37.9 to 59.2%, while the peroxide values ranged from 0.19 to 0.43 meq O-2/kg oil. The main monounsaturated fatty acid was oleic acid (C18: 1) with substantial levels of palmitoleic acid (C16: 1) present in the macadamia nut. The main polyunsaturated fatty acids present were linoleic acid ( C18: 2) and linolenic acid ( C18: 3). alpha-Tocopherol was the most prevalent tocopherol except in walnuts. The levels of squalene detected ranged from 9.4 to 186.4 mug/g. beta-Sitosterol was the most abundant sterol, ranging in concentration from 991.2 to 2071.7 mug/g oil. Campesterol and stigmasterol were also present in significant concentrations. Our data indicate that all five nuts are a good source of monounsaturated fatty acid, tocopherols, squalene and phytosterols.
DA  - 2004/NaN
ER  - 
@article{V113214868,
   = {Maguire, L. S. and O'Sullivan, S. M. and Galvin, K. and O'Connor, T. P. and O'Brien, N. M.},
   = {2004},
   = {International Journal of Food Sciences and Nutrition},
   = {Fatty acid profile, tocopherol, squalene and phytosterol content of walnuts, almonds, peanuts, hazelnuts and the macadamia nut},
   = {Validated},
   = {()},
   = {55},
   = {3},
  pages = {171--178},
   = {{Nuts are high in fat but have a fatty acid profile that may be beneficial in relation to risk of coronary heart disease. Nuts also contain other potentially cardioprotective constituents including phytosterols, tocopherols and squalene. In the present study, the total oil content, peroxide value, composition of fatty acids, tocopherols, phytosterols and squalene content were determined in the oil extracted from freshly ground walnuts, almonds, peanuts, hazelnuts and the macadamia nut. The total oil content of the nuts ranged from 37.9 to 59.2%, while the peroxide values ranged from 0.19 to 0.43 meq O-2/kg oil. The main monounsaturated fatty acid was oleic acid (C18: 1) with substantial levels of palmitoleic acid (C16: 1) present in the macadamia nut. The main polyunsaturated fatty acids present were linoleic acid ( C18: 2) and linolenic acid ( C18: 3). alpha-Tocopherol was the most prevalent tocopherol except in walnuts. The levels of squalene detected ranged from 9.4 to 186.4 mug/g. beta-Sitosterol was the most abundant sterol, ranging in concentration from 991.2 to 2071.7 mug/g oil. Campesterol and stigmasterol were also present in significant concentrations. Our data indicate that all five nuts are a good source of monounsaturated fatty acid, tocopherols, squalene and phytosterols.}},
  source = {IRIS}
}
AUTHORSMaguire, L. S. and O'Sullivan, S. M. and Galvin, K. and O'Connor, T. P. and O'Brien, N. M.
YEAR2004
MONTH
JOURNAL_CODEInternational Journal of Food Sciences and Nutrition
TITLEFatty acid profile, tocopherol, squalene and phytosterol content of walnuts, almonds, peanuts, hazelnuts and the macadamia nut
STATUSValidated
TIMES_CITED()
SEARCH_KEYWORD
VOLUME55
ISSUE3
START_PAGE171
END_PAGE178
ABSTRACTNuts are high in fat but have a fatty acid profile that may be beneficial in relation to risk of coronary heart disease. Nuts also contain other potentially cardioprotective constituents including phytosterols, tocopherols and squalene. In the present study, the total oil content, peroxide value, composition of fatty acids, tocopherols, phytosterols and squalene content were determined in the oil extracted from freshly ground walnuts, almonds, peanuts, hazelnuts and the macadamia nut. The total oil content of the nuts ranged from 37.9 to 59.2%, while the peroxide values ranged from 0.19 to 0.43 meq O-2/kg oil. The main monounsaturated fatty acid was oleic acid (C18: 1) with substantial levels of palmitoleic acid (C16: 1) present in the macadamia nut. The main polyunsaturated fatty acids present were linoleic acid ( C18: 2) and linolenic acid ( C18: 3). alpha-Tocopherol was the most prevalent tocopherol except in walnuts. The levels of squalene detected ranged from 9.4 to 186.4 mug/g. beta-Sitosterol was the most abundant sterol, ranging in concentration from 991.2 to 2071.7 mug/g oil. Campesterol and stigmasterol were also present in significant concentrations. Our data indicate that all five nuts are a good source of monounsaturated fatty acid, tocopherols, squalene and phytosterols.
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