Seasonal changes in lipid, fatty acid, α-tocopherol and phytosterol contents of seaweed, Undaria pinnatifida, in the Marlborough Sounds, New Zealand.
Monthly changes of lipids, fatty acids, phytosterol and α-tocopherol in New Zealand brown macroalgae, Undaria pinnatifida, were investigated. U. pinnatifida lipid content ranged from 17 to 45mg/g in the blade and between 21 and 63mg/g in the sporophyll. It was a rich source of polyunsaturated fatty acids (PUFAs) with n-6 PUFAs reaching a maximum in December. The unsaponifiable lipid was comprised of α-tocopherol, fucosterol and 24-methylenecholesterol, that were found in higher concentrations in the winter. The content of fucosterol ranged from 146 to 338μg/g, and that of 24-methylenecholesterol between 8.4 and 48μg/g. The contents of α-tocopherol were 13, 14 and 9.6μg/g in winter, spring and summer, respectively. New Zealand U. pinnatifida sporophyll had a high level of beneficial lipids and could potentially be further processed as a source of functional food lipids instead of being discarded as a waste product.
School of Applied Sciences, Faculty of Health and Environmental Sciences, Auckland University of Technology, 34 St Paul Street, Auckland 1142, New Zealand.
Sayvisene
S
Boulom
School of Applied Sciences, Faculty of Health and Environmental Sciences, Auckland University of Technology, 34 St Paul Street, Auckland 1142, New Zealand. Electronic address: john.robertson@aut.ac.nz.
John
J
Robertson
School of Applied Sciences, Faculty of Health and Environmental Sciences, Auckland University of Technology, 34 St Paul Street, Auckland 1142, New Zealand; Institute for Applied Ecology New Zealand, Faculty of Health and Environmental Sciences, Auckland University of Technology, 34 St Paul Street, Auckland 1142, New Zealand.
Nazimah
N
Hamid
School of Applied Sciences, Faculty of Health and Environmental Sciences, Auckland University of Technology, 34 St Paul Street, Auckland 1142, New Zealand.
Qianli
Q
Ma
School of Applied Sciences, Faculty of Health and Environmental Sciences, Auckland University of Technology, 34 St Paul Street, Auckland 1142, New Zealand; Institute for Applied Ecology New Zealand, Faculty of Health and Environmental Sciences, Auckland University of Technology, 34 St Paul Street, Auckland 1142, New Zealand; School of Interprofessional Health Studies, Faculty of Health and Environmental Sciences, Auckland University of Technology, 90 Akoranga Drive, Auckland 0627, New Zealand; Institute of Biomedical Technologies, Auckland University of Technology, St Paul Street, Auckland 1142, New Zealand.
Jun
J
Lu
D005227:Fatty Acids / Q000737:chemistry*; D008055:Lipids; D009520:New Zealand; D010840:Phytosterols / Q000737:chemistry*; D012624:Seaweed / Q000737:chemistry*; D044648:Undaria / Q000737:chemistry*; D014675:Vegetables / Q000737:chemistry*; D024502:alpha-Tocopherol / Q000737:chemistry*
D005227:Fatty Acids; D008055:Lipids; D010840:Phytosterols; D024502:alpha-Tocopherol
Fatty acids; Lipid; Seaweed; Undaria pinnatifida; Unsaponifiable lipid fraction