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Title

IDENTIFICATION AND DETERMINATION OF PHYTOSTEROLS IN OILSEEDS OF SOME POPULATIONS FROM TWO IRANIAN ECHIUM SPECIES

Pages

  741-755

Abstract

 Phytosterol, a general term applied to a large number of plant-derived sterols, is found exclusively in all organs of higher plants and are often enriched in oilseeds. PHYTOSTEROLs have wide bioactivity in humans, in particular as an efficacious cholesterol-lowering agent and consequently may have a preventive role against cardiovascular disease and also a variety of cancers.Phytosterols occur in high concentrations in vegetable oils such as the ECHIUM (Boraginaceae family). In Iran, four species of ECHIUM have been identified so far. In respect of unique roles of PHYTOSTEROLs in human health, the aim of the present study was determination and quantification of sterols in seeds of two Iranian ECHIUM. Seeds were collected from six populations of two Iranian ECHIUMspecies (E. italicum and E. amoenum) from their natural habitats. After extraction with appropriate solvents, the existence of sterols in seeds was characterized by TLC and then their contents were measured using GC and spectrophotometeric methods. Total PHYTOSTEROL contents were determined using the standard curve equation obtained from the changes in the absorption of solutions at a wavelength of 640 nm. Results from GC analyses showed that total PHYTOSTEROL contents based on total seed dry weight were also significant, as the highest amount (399.4 mg/100g D.W) was detected in seeds of E. italicum (Alamute Qazvin population) and the lowest (112 mg/100g D.W) was measured in seeds of E. amoenum species (Hezarjarib population). Also, campesterol (20-50% of total PHYTOSTEROL) and b-sitosterol (more than 50% of total PHYTOSTEROL) was the main constituents of the PHYTOSTEROLs in all seeds. Accordingly, seeds of E. amoenum (Behshahr population) with 141 mg/100g b-sitosterol and seeds of E. italicum (Alamute Qazvin population) with 212 and 141.4 mg/100g campesterol and b-sitostanol were respectively identified as the richest samples.

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    APA: Copy

    ABBASZADEH, S., RADJABIAN, T., & TAGHIZADEH, M.. (2013). IDENTIFICATION AND DETERMINATION OF PHYTOSTEROLS IN OILSEEDS OF SOME POPULATIONS FROM TWO IRANIAN ECHIUM SPECIES. IRANIAN JOURNAL OF MEDICINAL AND AROMATIC PLANTS, 28(4 (58)), 741-755. SID. https://sid.ir/paper/105148/en

    Vancouver: Copy

    ABBASZADEH S., RADJABIAN T., TAGHIZADEH M.. IDENTIFICATION AND DETERMINATION OF PHYTOSTEROLS IN OILSEEDS OF SOME POPULATIONS FROM TWO IRANIAN ECHIUM SPECIES. IRANIAN JOURNAL OF MEDICINAL AND AROMATIC PLANTS[Internet]. 2013;28(4 (58)):741-755. Available from: https://sid.ir/paper/105148/en

    IEEE: Copy

    S. ABBASZADEH, T. RADJABIAN, and M. TAGHIZADEH, “IDENTIFICATION AND DETERMINATION OF PHYTOSTEROLS IN OILSEEDS OF SOME POPULATIONS FROM TWO IRANIAN ECHIUM SPECIES,” IRANIAN JOURNAL OF MEDICINAL AND AROMATIC PLANTS, vol. 28, no. 4 (58), pp. 741–755, 2013, [Online]. Available: https://sid.ir/paper/105148/en

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