Aktivitas Antioksidan, Kadar Β Karoten, Kadar Vitamin C, Dan Sifat Sensori Bolu Kukus Dengan Variasi Konsentrasi Tepung Labu Kuning
(1) Program Studi Teknologi Pangan Fakultas Sains dan Teknologi Pertanian, Universitas Muhammadiyah Semarang
(2) Program Studi Teknologi Pangan Fakultas Sains dan Teknologi Pertanian, Universitas Muhammadiyah Semarang
(3) Program Studi Teknologi Pangan Fakultas Sains dan Teknologi Pertanian, Universitas Muhammadiyah Semarang
(*) Corresponding Author
Abstract
Abstract
Steamed sponge cake is a traditional cake that is widely loved by the public because of its soft texture, sweet taste, and simple preparation process. However, steamed sponge cake generally has a low content of bioactive compounds. Pumpkin (Cucurbita moschata) is a local food ingredient rich in β-carotene, vitamin C, and antioxidants, thus potentially increasing the functional value of steamed sponge cake. This study aims to determine the effect of variations in pumpkin flour concentration on antioxidant activity, β-carotene levels, vitamin C levels, and sensory properties of steamed sponge cake. The study used an experimental method with a completely randomized design (CRD) with one factor, namely the addition of pumpkin flour of 0, 5, 10, 15, 20, and 25% with three replications. The research procedure included making pumpkin flour using a cabinet dryer, making steamed sponge cake according to the treatment formulation, then analyzing antioxidant activity using the DPPH method, determining IC₅₀, analyzing β-carotene levels using the n-hexane method, analyzing vitamin C using the iodometric method, and sensory testing using the hedonic method. The results showed that the addition of pumpkin flour significantly affected antioxidant activity, IC₅₀ values, β carotene levels, and vitamin C levels. Sensori- cally, all treatments were still acceptable to the panelistsKeywords
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