A comparison of physical properties, oxalate-oxalic acid soluble substances, protein content, and in vitro protein digestibility of the blue-green algaNostoc commune Vauch. from the Philippines and Japan |
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| Authors: | Maria Portia P Briones Kohji Hori Milagrosa R Martinez-Goss Genji Ishibashi Takuo Okita |
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| Institution: | (1) Institute of Biological Sciences, University of the Philippines at Los Banos, Laguna, Philippines;(2) Department of Home Economics, Fukuoka University of Education, 729 Akama, Munakata, 811-41 Fukuoka, Japan;(3) Department of Nutrition, Kyushu Women's University, Kitakyushu, 807 Fukuoka, Japan |
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| Abstract: | The physical properties, amount of oxalate-oxalic acid soluble substances (OOSS), protein and in vitro protein digestibility
ofNostoc commune from the Philippines and Japan were determined. The samples were the spherical type from the Philippines (PS), the dry field
discoid type from the Philippines (PD), and the dry field discoid type from Japan (JD). The discoid types, PD and JD, regardless
of origin showed higher settling volume in water (SV) and bulk density than PS. The OOSS values obtained for all samples were
directly related to SV and bulk density. The WHC level was highest in PS. This desirable characteristic makes PS a technologically
potential sample for large-scale food production applications in the future. Protein and in vitro protein digestibility varied
significantly among all samples. In general, the algal samples examined posses desirable physical properties which are expected
to be related to physiological functions. |
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| Keywords: | Blue-green alga Nostoc commune Dietary fiber Physical property Protein digestibility |
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