Aplikasi Konjak Glukomanan Termodifikasi Oktenil Suksinat Anhidrat (KGOS) sebagai Fat Replacer pada Pembuatan Bakso Babi

Abstract

Abstract

Pork meatballs were typically formulated from a mixture of meat and fat, which influenced their characteristic flavor and firm texture. Fat contained high cholesterol levels and posed health risks. Therefore, a fat replacer was needed to maintain the physicochemical properties without reducing the sensory quality of the meatballs. Modified Konjac Glucomannan Octenyl Succinic Anhydride (KGOS) was considered a potential fat replacer due to its high fiber content, low fat, and functional properties, which enabled cholesterol reduction while mimicking the role of fat. This study aimed to determine the optimal concentration of KGOS to produce pork meatballs with the best characteristics. The experiment was conducted using a Completely Randomized Design (CRD) with five treatment levels of KGOS concentration (0 percent, 0.5 percent, 1 percent, 1.5 percent, and 2 percent). Data were analyzed using ANOVA, and if significant effects were observed on the measured variables, the analysis was continued with Duncan’s Multiple Range Test (DMRT) at a 95 percent confidence level. Sensory data were presented in a Spider Web plot and were analyzed using Principal Component Analysis (PCA). The best result based on sensory evaluation was compared with the control using a paired t‑test to assess statistically significant differences. The results showed that adding one percent KGOS produced the best quality pork meatballs, with moisture content of 72.91 percent, fat content of 2.94 percent, protein content of 13.69 percent, and ash content of 2.03 percent. Cooking loss was 5.92 percent. Color analysis showed L* 41.28, a* 6.30, and b* 19.85, interpreted as sandrift brown. The texture profile included hardness of 13.14 N, cohesiveness of 0.69, springiness of 0.89, and chewiness of 42.15 N. The sensory aspects (hedonic test) for color, texture, taste, and overall acceptance were rated as liked, and aroma was rated as slightly liked.

Keywords: fat replacer, konjac glucomannan, octenyl succinic anhydride, pork meatballs

Abstrak

Bakso babi umumnya terbuat dari campuran daging dan lemak. Lemak berperan penting dalam membentuk cita rasa serta meningkatkan kekenyalan tekstur. Namun, lemak mengandung kolesterol tinggi yang berisiko terhadap kesehatan, sehingga diperlukan fat replacer yang dapat mempertahankan sifat fisikokimia tanpa mengurangi mutu sensoris bakso. Konjak Glukomanan Termodifikasi Oktenil Suksinat Anhidrat (KGOS) dipandang sebagai fat replacer potensial yang tinggi serat, rendah lemak, dan bersifat fungsional sehingga mampu menurunkan kolesterol sekaligus menggantikan peran lemak. Penelitian ini bertujuan mengetahui konsentrasi optimal KGOS untuk menghasilkan bakso babi dengan karakteristik terbaik. Penelitian dilakukan menggunakan Rancangan Acak Lengkap (RAL) dengan lima taraf perlakuan konsentrasi (0 persen, 0,5 persen, 1 persen, 1,5 persen, dan 2 persen). Data dianalisis menggunakan ANOVA dan apabila berpengaruh signifikan terhadap variabel yang diamati maka dilanjutkan dengan uji DMRT pada taraf kepercayaan 95 persen, sedangkan data sensoris ditampilkan dalam bentuk Spider Web dan dianalisis menggunakan Principal Component Analysis (PCA). Perlakuan terbaik diperoleh berdasarkan hasil sensoris, kemudian diuji menggunakan paired t-test untuk membandingkan secara signifikan dengan kontrol. Hasil penelitian menunjukkan bahwa penambahan KGOS satu persen menghasilkan bakso babi terbaik dengan kadar air sebesar 72,91 persen, kadar lemak 2,94 persen, kadar protein sebesar 13,69 persen, kadar abu 2,03 persen, cooking loss 5,92 persen serta intensitas warna terhadap nilai L* 41,28, nilai a* 6,30, dan nilai b* 19,85, diinterpretasikan dengan warna sandrift brown. Dengan nilai tekstur kekerasan sebesar 13,14 N, kekompakan 0,69, elastisitas 0,89, kekenyalan 42,15 N dengan aspek sensoris (hedonik) meliputi warna, tekstur, rasa, dan penerimaan keseluruhan dengan kriteria suka serta aroma dengan kriteria agak suka.

Kata Kunci: bakso babi, fat replacer, konjak glukomanan, oktenil suksinat anhidrat