@article{Budijanto_Sitanggang_Murdiati_2011, title={KARAKTERISASI SIFAT FISIKO-KIMIA DAN FUNGSIONAL ISOLAT PROTEIN BIJI KECIPIR (Psophocarpus tetragonolobus L.) [Characterization of Physicochemical and Functional Properties of Winged-Bean (Psophocarpus tetragonolobus L.) Protein Isolate]}, volume={22}, url={https://journal.ipb.ac.id/index.php/jtip/article/view/4267}, abstractNote={<p><em>W</em><em>inged</em><em>-</em><em>bean </em><em>(Psophocarpus tetragonolobus L.)</em><em> has similar protein concentration to soybean. Higher productivity of w</em><em>inged</em><em>-</em><em>bea</em><em>n </em><em>as compared to soybean and ground nut makes it feasible to develop this legume as a natural source of vegetable protein. Protein isolate was made by isolating protein from defatted winged-bean flour employing its isoelectric point, and several stages of centrifugation. The protein content of w</em><em>inged</em><em>-</em><em>bean</em><em> protein isolate was </em><em>83</em><em>.</em><em>87% (</em><em>db</em><em>)</em><em>. Analysis of physicochemical properties of winged-bean protein isolate, suggested that the bulk density was </em><em>0</em><em>.60</em><em> g/ml</em><em> with water and oil absorption capacity of 2.61 g H<sub>2</sub>O/g solid; 1.60 ml oil/g solid, respectively. Moreover, this protein isolate had emulsion capacity of 70.5%; foam capacity of 89.5% and formed gel at concentration of 15%. Data on amino acids composition indicated that glutamic acid was the highest concentration (6.37%), whereas tryptophan was the lowest one (0.37%). Several essential amino acids, such as </em><em>leu</em><em>c</em><em>in</em><em>e</em><em> dan l</em><em>y</em><em>sin</em><em>e, were </em><em>found in w</em><em>inged</em><em>-</em><em>bean </em><em>protein isolate at a  concentration of 3.2% and 2.8%, respectively, calculated from the total amino acid. </em></p&gt;}, number={2}, journal={Jurnal Teknologi dan Industri Pangan}, author={Budijanto, Slamet and SitanggangAzis Boing and Murdiati, Wita}, year={2011}, month={Dec.}, pages={130} }