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Journal : agriTECH

Physicochemical Characteristics and Antidiabetic Potential In Vitro of Analog Rice Based on White Greater Yam (Dioscorea alata) and Yellow Pumpkin (Cucurbita maxima) Imama, Darus Dina; Triwitono, Priyanto; Saputra, Wahyu Dwi
agriTECH Vol 45, No 2 (2025)
Publisher : Faculty of Agricultural Technology, Universitas Gadjah Mada, Yogyakarta, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/agritech.97284

Abstract

Type 2 Diabetes Mellitus (T2DM) is a metabolic disease characterized by the presence of increased blood sugar due to insulin resistance and β-cell dysfunction maintaining the body homeostasis by lowering blood sugar levels. People with T2DM are advised to avoid consuming foods that can trigger an increase in blood sugar levels. However, daily consumption of Indonesians still depends on ordinary rice, which has a high glycemic index and can increase blood sugar levels. This shows the need to produce substitute such as analog rice, which is safe to consume by people with T2DM. Analog rice is artificial product that uses raw materials from grains or tubers. Therefore, this research aimed to produce high-antioxidant analog rice by using white greater yam and yellow pumpkin as the main ingredients. The results showed that increasing the concentration of yellow pumpkin caused a rise in physical properties such as water absorption and b value, which was the yellow color appearing in analog rice. Chemical properties such as water content, ash, and protein were increasing but starch, carbohydrates, amylose, and amylopectin levels decreased. Total phenolics, DPPH, and ABTS antioxidants, the percentage of inhibition activity of α-amylase enzyme, and descriptive sensory tests including appearance, aroma, texture, and flavor also showed an increase. The best formula was obtained in P1 treatment comprising 85% white greater yam and 15% yellow pumpkin. Specifically, P1 showed % α-amylase inhibition activity of 42%, DPPH antioxidant activity 82.39%, ABTS 86.47%, and a favorability test value of 4. This value was considered neutral, showing the potential to be well-received by panelists.
Characterization of High Protein and Instant Cereal Fiber Drink Enriched with Probiotic Milk Powder Tanuwijaya, Shania Angeline; Fibri, Dwi Larasatie Nur; Rahayu, Endang Sutriswati; Yanti, Rini; Saputra, Wahyu Dwi
agriTECH Vol 45, No 3 (2025)
Publisher : Faculty of Agricultural Technology, Universitas Gadjah Mada, Yogyakarta, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/agritech.90659

Abstract

An alternate healthy snack for school-age children can be prepared by adding sorghum and tempeh flour, which are sources of protein and fiber, to instant cereal drinks. Probiotic-enriched snacks are well-known, and several clinical studies have shown significant benefits to humans. Therefore, this study aimed to assess the effects of various ratios of sorghum and tempeh flour (5:1, 2:1, and 1:1) on physicochemical and sensory characteristics of the flakes. The viability of Lactiplantibacillus plantarum subsp. plantarum Dad-13 in an instant cereal beverage was examined for 56 days at three distinct storage temperature, i.e 20, 30, and 37 °C. The 2:1 sorghum: tempeh flour ratio formulation was the most widely accepted. According to chemical analyses, all probiotic instant cereal drink formulations have the potential to be sources of fiber (6.4–10.6 g/100 g) and proteins (14.5–16.3 g/100 g). Furthermore, the probiotic instant cereal drink contains more fiber and protein than a commercial product. This product has a minimum viable count of probiotic bacteria > 6.0 log CFU/g, which is substantial enough to have positive health effects on Indonesian school-age children.