PENGARUH PENAMBAHAN IKAN NILA (Oreochromis niloticus) TERHADAP SENYAWA PROTEIN KERUPUK SINGKONG (Manihot utilissima)

Abstrak

The aimed of this study was to determine the effect of tilapia addition on protein compounds of cassava crackers. The method used in this study was the experimental method with a completely randomized design (CRD) with single factor experiment (the treatment ratio of tilapia and cassava) which consists of six treatments are: treatment cassava 100% : tilapia (0%) (control), cassava 85% : tilapia 15%, cassava 70% : tilapia 30%, cassava 55% : tilapia 45%, cassava 40% : tilapia 60% and cassava 25% : tilapia 75%. The parameters observed in this study were protein content, moisture content, physicallycolor test, flavor, texture and color organoleptic. Observational data of chemical, physical and organoleptic test were analyzed by analysis of variance at 5% level by usingCo-Stat software. If there were a significantly different, will be tested by Honestly Significantly Different (HSD) test to at the same level. The results showed that the addition of tilapia on cassava crackers provided a significantly different effect on protein content, physical color, flavors, texture and color organoleptic, but did not significantly differenteffect on the moisture content of cassava crackers. Addition of 85% Cassava: 15% tilapia treatment gave the best result based on chemical properties (13.82% of protein content and 5.80% of moisture content) and preferred by the panelists based on organoleptic parameters of flavors and colors.

Key words: cassava crackers, protein compound, tilapia.

ABSTRAK

Penelitian ini bertujuan untuk mengetahui pengaruh penambahan ikan nila terhadap senyawa protein kerupuk singkong. Metode yang digunakan pada penelitian ini adalah metode eksperimental dengan Rancangan Acak Lengkap (RAL) dengan percobaan faktor tunggal dengan perlakuan rasio ikan nila dan singkong yang terdiri dari enam perlakuan yaitu: perlakuan Singkong 100% : Nila 0% (kontrol), Singkong 85% : Nila 15%, Singkong 70% : Nila 30%, Singkong 55% : Nila 45%, Singkong 40% : Nila 60% dan Singkong 25% : Nila 75%. Parameter yang diamati pada penelitian ini yaitu analisa kadar protein, kadar air, uji warna secara fisik, rasa, tekstur dan warna secara organoleptik. Data pengamatan uji kimia, uji fisik dan uji organoleptik dianalisis dengan analisis keragaman pada taraf 5% dengan menggunakan software Co-Stat. Apabila terdapat beda nyata, akan diuji lanjut dengan uji Beda Nyata Jujur (BNJ) untuk uji kimia, uji fisik dan uji organoleptik pada taraf nyata yang sama. Hasil penelitian menunjukkan bahwa penambahan ikan nila pada kerupuk singkong memberikan pengaruh yang berbeda nyata terhadap kadar protein, warna secara fisik, rasa, tekstur dan warna secara organoleptik, tetapi tidak berbeda nyata terhadap kadar air kerupuk singkong. Perlakuan penambahan Singkong 85% : Nila 15% memberikan hasil terbaik berdasarkan sifat kimia (kadar protein sebesar 13,82% dan kadar air sebesar 5,80%) dan disukai oleh panelis secara organoleptik dari parameter rasa dan warna.

Kata kunci: ikan nila, kerupuk singkong, senyawa protein