Open AccessKarakteristik Kimia Biskuit dari Tepung dan Serat Ubi Jalar Ungu
Author(s) -
Stefani Limanto,
Elisa Julianti,
Zulkifli Lubis
Publication year - 2019
Publication title -
jurnal teknologi dan industri pertanian indonesia
Language(s) - English
Resource type - Journals
eISSN - 2442-7020
pISSN - 2085-4927
DOI - 10.17969/jtipi.v11i2.14854
Subject(s) - food science , chemistry , fiber , potato starch , dietary fiber , starch , anthocyanin , pigment , resistant starch , wheat flour , organic chemistry
Purple sweet potato is one type of tuber that is rich in carbohydrates in the form of starch and fiber. It also contains purple anthocyanin pigments. In this research, purple sweet potato was processed into flour and starch. Starch processing solid waste can be utilized by processing it into fiber flour. Purple sweet potato flour and fiber were then used as the basis for making biscuits at a ratio of 75: 25 and compared to biscuits made from 100% purple sweet potato flour and wheat flour. The resulting biscuits were then analyzed for their chemical characteristics. The results showed that the ratio of flour gave a very significantly different effect on the value of water content, total dietary fiber content, insoluble dietary fiber content and % nutritional adequacy rate of food fiber, and had no significant effect on the value of ash content, protein content, fat content, content carbohydrates, total flavonoids, insoluble dietary fiber content, calorie intake and fulfillment of daily energy adequacy.