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  • Title: Fatty acids and beta-carotene in australian purslane (Portulaca oleracea) varieties.
    Author: Liu L, Howe P, Zhou YF, Xu ZQ, Hocart C, Zhan R.
    Journal: J Chromatogr A; 2000 Sep 29; 893(1):207-13. PubMed ID: 11043602.
    Abstract:
    The fatty acid profile and beta-carotene content of a number of Australian varieties of purslane (Portulaca oleracea) were determined by GC and HPLC. The total fatty acid content ranged from 1.5 to 2.5 mg/g of fresh mass in leaves, 0.6 to 0.9 mg/g in stems and 80 to 170 mg/g in seeds. alpha-Linolenic acid (C18:3omega3) accounted for around 60% and 40% of the total fatty acid content in leaves and seeds, respectively. Longer-chain omega-3 fatty acids were not detected. The beta-carotene content ranged from 22 to 30 mg/g fresh mass in leaves. These results indicate that Australian purslane varieties are a rich source of alpha-linolenic acid and beta-carotene.
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