PENGARUH PENAMBAHAN SKIM DAN GELATIN PADA KARAKTERISTIK FISIKOKIMIA MINUMAN WHEY FERMENTASI
Abstract
Whey merupakan hasil samping industri keju yang memiliki banyak manfaat. Minuman fermentasi menjadi pupuler karena nilai nutrisi tinggi dan manfaat fungsionalnya. Penelitian ini bertujuan mengetahui pengaruh penambahan skim dan gelatin terhadap karakteristik fisik dan kimia dari minuman whey fermentasi. Konsentrasi penambahan skim adalah 5%,10%, dan 15%. Sedangkan gelatin ditambahkan dengan konsentrasi 0,2%, 0,4%, 0,6% dan 0,8%. Starter fermentasi yang digunakan adalah starter yogurt dan biji kefir. Hasil penelitian menunjukan penambahan skim dan gelatin berpengaruh pada peningkatan total asam tertitrasi dan protein minuman whey fermentasi. Penurunan kandungan lemak dan nilai sineresis minuman whey fermentasi terjadi dengan meningkatnya konsentrasi penambahan skim dan gelatin. Penambahan skim memberikan peningkatan yang lebih tinggi pada kandungan protein dan total solid dan penurunan yang lebih rendah pada sineresis dibandingkan penambahan gelatin. Sineresis pada minuman whey fermentasi dengan starter yogurt lebih sedikit dibandingkan starter biji kefir. Karakteristik minuman whey fermentasi dengan penambahan skim lebih baik dibandingkan penambahan gelatin.
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