Pratiwi, IntridaAnggi (2014) Pengaruh Substitusi Susu Kedelai Dengan Filtrat Ubi Jalar Ungu (Ipomea batatas var. Ayamurasaki) Terhadap Kadar Serat Kasar dan Mutu Organoleptik (Untuk Memperoleh Alternatif Diet Diabetes Melitus). Sarjana thesis, Universitas Brawijaya.
Abstract
Peningkatan risiko diabetes melitus dihubungkan dengan diet rendah serat. Rata-rata konsumsi serat penderita diabetes melitus masih kurang dari rata-rata kebutuhan serat per hari (25 gram/hari). Ubi jalar ungu merupakan sumber karbohidrat kompleks dengan kandungan serat lebih tinggi daripada ubi jalar yang lain. Susu kedelai bermanfaat sebagai terapi diet untuk penderita diabetes melitus, namun kandungan seratnya lebih rendah dibandingkan dengan ubi jalar ungu dan memiliki bau langu yang khas. Tujuan penelitian ini adalah mengetahui pengaruh substitusi susu kedelai dengan filtrat ubi jalar ungu (Ipomea batatas var. Ayamurasaki) terhadap kadar serat kasar dan mutu organoleptik (untuk memperoleh alternatif diet diabetes melitus). Metode penelitian adalah penelitian eksperimental dengan Rancangan Acak Lengkap menggunakan 6 perlakuan substitusi filtrat ubi jalar ungu (0, 20, 40, 60, 80, dan 100%). Variabel independen adalah proporsi susu kedelai dan filtrat ubi jalar ungu, sedangkan variabel dependennya adalah kadar serat kasar dan mutu organoleptik. Analisis statistik dari kadar serat kasar dan uji organoleptik menggunakan uji Kruskal Wallis dilanjutkan dengan uji Mann Whitney. Perbedaan proporsi substitusi filtrat ubi jalar ungu berpengaruh secara signifikan terhadap peningkatan kadar serat kasar (p=0,001). Substitusi filtrat ubi jalar ungu berpengaruh signifikan terhadap warna, tetapi tidak berpengaruh signifikan terhadap aroma, rasa, dan konsistensi. Taraf perlakuan terbaik adalah susu kedelai dengan substitusi filtrat ubi jalar ungu 60%. Kesimpulan dari penelitian ini adalah substitusi filtrat ubi jalar ungu pada susu kedelai secara signifikan meningkatkan kadar serat kasar dan memberikan pengaruh pada mutu organoleptik.
English Abstract
Increased risk of diabetes mellitus is related with a low fiber diet. An average fiber consumption of people with diabetes mellitus is still less than the average requirement of fiber per day (25 gram/day). Purple sweet potato is a source of complex carbohydrates with a higher fiber content than other sweet potato. Soymilk is useful as a therapeutic diet for people with diabetes mellitus, but have lower fiber content than the purple sweet potato and also distinctive unpleasant odor. The purpose of this study was to determine the effect of substitution of soymilk with purple sweet potato filtrate (Ipomea batatas var. Ayamurasaki) to crude fiber content and organoleptic quality (to obtain alternative diet for diabetes mellitus). The research method was experimental study with Completely Randomized Design using 6 substitution levels of purple sweet potato filtrate (0, 20, 40, 60, 80, and 100%). The independent variabel is proportion of soymilk and purple sweet potato filtrate, while dependent variabel is crude fiber content and sensory quality. Statistical analysis of the crude fiber content and organoleptic tests using Kruskal Wallis test, followed by Mann Whitney test. Difference in the proportion of purple sweet potato filtrate is significantly affect to increase crude fiber content (p=0,001). Substitution of purple sweet potato filtrate has significant effect on the color, but no significant effect on flavor, taste, and consistency. The best treatment was soymilk with 60% substitution of purple sweet potato filtrate. The conclusion of this study is substitution of soymilk with purple sweet potato filtrate signicantly increase crude fiber content and affect to organoleptic quality.
| Item Type: | Thesis (Sarjana) |
|---|---|
| Identification Number: | SKR/FK/2014/543/051404083 |
| Subjects: | 600 Technology (Applied sciences) > 613 Personal health and safety > 613.2 Dietetics |
| Divisions: | Fakultas Kedokteran > Ilmu Gizi |
| Depositing User: | Budi Wahyono Wahyono |
| Date Deposited: | 23 Jul 2014 08:38 |
| Last Modified: | 22 Oct 2021 02:24 |
| URI: | http://repository.ub.ac.id/id/eprint/124548 |
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