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All Journal Indonesian Food and Nutrition Progress AGRITEKNO, Jurnal Teknologi Pertanian Journal of Applied Agricultural Science and Technology
Manikharda, Manikharda
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Agriculture, Biological Sciences & Forestry

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Karakteristik Fisikokimia dan Organoleptik Biskuit Tepung Ubi Jalar Ungu dan Tepung Koro Pedang Putih Khafsah, Fatya N; Yanti, Rini; Manikharda, Manikharda
AGRITEKNO: Jurnal Teknologi Pertanian Vol 13 No 1 (2024): AGRITEKNO: Jurnal Teknologi Pertanian
Publisher : Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/jagritekno.2024.13.1.31

Abstract

Biscuits were made of purple sweet potato flour and jack bean flour as an effort to add nutritional value to the biscuits. This study aimed to determine the effect of different substitution ratios of purple sweet potato flour and jack bean flour on the chemical, physical, and organoleptic characteristics and their benefits as alternative foods for the daily nutritional needs of stunting toddlers. In this study, we used an experimental method with a ration of purple sweet potato flour and jack bean flour. It consisted of four levels treatment P1 (58%:42%); P2 (67%:33%); P3 (75%:25%); and control (100%:0%). The biscuit acceptability test for the four biscuit formulas was carried out using the hedonic test. The selected formula was determined based on the preferences of 70 untrained panelists. Based on the results of the study, it was found that P3 biscuits with the ratio of purple sweet potato flour: jack bean flour (75%: 25%) was the most preferred formula and had a moisture content of 3.41%, ash 2.24%, fat 25.39%, protein 3.94%, carbohydrates 68.42%, total energy 518.03 kcal/100 g; and a hardness value of 12.85 N. The overall acceptance test for P3 biscuits obtained a value of 4.51 (rather like). As a snack, biscuits with the selected formula can meet 9% of protein needs, 26% of fat needs, and 15% of daily carbohydrate needs for toddlers aged 1-3 years and provide energy of 238 kcal/100 g by consuming 14 pieces of biscuits or the equivalent of 46 g of biscuits.
Properties of Instant Sourdough from Papaya (Carica papaya L.) Natural Starter and Its Effect on Bread Characteristics Yanti, Rini; Suroto, Dian Anggraini; Manikharda, Manikharda; Putri, Yuniar Wika Perdana
Journal of Applied Agricultural Science and Technology Vol. 9 No. 1 (2025): Journal of Applied Agricultural Science and Technology
Publisher : Green Engineering Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55043/jaast.v9i1.341

Abstract

Sourdough is made from water and wheat flour, fermented by lactic acid bacteria and yeast. Papaya can serve as a natural starter for producing sourdough. This study aims to assess the impact of drying on pH levels, total titratable acidity (% TTA), the viability of lactic acid bacteria (LAB), yeast viability, specific volume, and the texture profile of gluten and gluten-free bread. Three types of starters were used: P (fermented water from papaya and flour), G (fermented water from papaya, sugar, and flour), and W (mineral water and flour) to make type I sourdough (before drying). Type III sourdough (dried) was obtained using spray drying (S), cabinet drying (C), and freeze-drying (F). The pH, %TTA, LAB, and yeast viability were measured, while the specific volume and texture profiles of the breads were evaluated. Spray drying significantly affected the pH of the A sample and LAB viability in the W and G samples. Cabinet drying significantly affected the %TTA and yeast viability in the G sample. Freeze-drying significantly affected the LAB and yeast viability in the W and G samples, as well as yeast viability and %TTA in the P sample. Instant sourdough can be produced using spray, cabinet, or freeze drying and is suitable for making both gluten-containing and gluten-free bread. Variations in starter type and drying methods influence the bread's physical characteristics, including specific volume and texture profile. The drying methods significantly affected hardness, gumminess, chewiness, cohesiveness, springiness index, and resilience in both gluten-containing and gluten-free bread samples.
Effect of The Ratio of Purple Sweet Potato Flour and Rice Crust Flour on The Physical, Chemical, and Sensory Properties of High-Fiber Snack Bar Safira, Tsaania Miftakhul; Yanti, Rini; Manikharda, Manikharda; Triwitono, Priyanto
Indonesian Food and Nutrition Progress Vol 21, No 1 (2024)
Publisher : Indonesian Association of Food Technologists

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ifnp.87835

Abstract

Dietary fiber, an indigestible component of plants, offers significant health benefits for humans. Creating a high-fiber snack bar can be a substitute for meeting daily requirements for dietary fiber. This research aimed to create snack bar products utilizing locally sourced ingredients, specifically rice crust flour and purple sweet potato flour, with the goal of optimizing the utilization of local food resources and enhancing the diversity of Indonesian cuisine. This study aimed to investigate how the proportion of purple sweet potato flour and rice crust flour influenced the chemical, physical, and sensory characteristics of the high-fiber snack bars that were created. The proportions of purple sweet potato flour to rice crust flour differed across the four snack bar formulas: FI (100%:0%), F2 (90%:10%), F3 (80%:20%), and F4 (70%:30%). The effectiveness index method was employed to determine the optimal formulation for the snack bar. The results indicated that lowering the proportion of purple sweet potato flour would enhance the firmness and color of the snack bar. The dietary fiber content (%db) of each formula was as follows: F1 (18.92 ± 1.43%), F2 (18.33 ± 0.79%), F3 (18.56 ± 2.73%), and F4 (19.48 ± 0.40%). The sensory test results showed a direct correlation between the panelists' preference level and the decrease in the proportion of purple sweet potato flour. Formula F4, consisting of a 70% proportion of purple sweet potato flour and a 30% proportion of rice crust flour, is the optimal formula for creating a snack bar. 
Co-Authors Dian Anggraini Suroto Khafsah, Fatya N Putri, Yuniar Wika Perdana Rini Yanti, Rini Safira, Tsaania Miftakhul Triwitono, Priyanto