Protein isolates from 9 cultivars of peanut (Arachis hypogaea L.) were compared. Sephadex G-200 gel filtration and nondenaturing polyacrylamide gel electrophoresis (NPAGE) of the protein isolates showed very similar patterns of arachin and nonarachin fractions. Thc content of individual fractions was somewhat different among cultivars, possibly indicating genetic variability. Sodium dodecyl sulfate-PAGE (SDS-PAGE) showed that the protein isolates had extremely complex subunit compositions. The content of acidic amino acids of the protein isolates was 34-38%, basic was 15-17%. Differences in some functionalities such as solubility and emulsification activity were conspicuous among cultivars.
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Univ Kebangsaan Malaysia, Fac Sci & Technol, Dept Food Sci, Bangi 43600, Selangor, MalaysiaUniv Kebangsaan Malaysia, Fac Sci & Technol, Dept Food Sci, Bangi 43600, Selangor, Malaysia
Khushairay, Etty Syarmila Ibrahim
Abd Ghani, Ma'aruf
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Univ Malaysia Terengganu, Fac Fisheries & Food Sci, Kuala Terengganu 21030, Terengganu, MalaysiaUniv Kebangsaan Malaysia, Fac Sci & Technol, Dept Food Sci, Bangi 43600, Selangor, Malaysia
Abd Ghani, Ma'aruf
Babji, Abdul Salam
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Univ Kebangsaan Malaysia, Fac Sci & Technol, Dept Food Sci, Bangi 43600, Selangor, Malaysia
Univ Kebangsaan Malaysia, Fac Sci & Technol, Innovat Ctr Confectionery Technol MANIS, Bangi 43600, Selangor, MalaysiaUniv Kebangsaan Malaysia, Fac Sci & Technol, Dept Food Sci, Bangi 43600, Selangor, Malaysia
Babji, Abdul Salam
Yusop, Salma Mohamad
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Univ Kebangsaan Malaysia, Fac Sci & Technol, Dept Food Sci, Bangi 43600, Selangor, Malaysia
Univ Kebangsaan Malaysia, Fac Sci & Technol, Innovat Ctr Confectionery Technol MANIS, Bangi 43600, Selangor, MalaysiaUniv Kebangsaan Malaysia, Fac Sci & Technol, Dept Food Sci, Bangi 43600, Selangor, Malaysia