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All Journal TEKNOLOGI PANGAN : Media Informasi dan Komunikasi Ilmiah Teknologi Pertanian Journal of Agri-Food Science and Technology (JAFoST)
Machfudz, Al
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemistry

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Effect of Soybean (Glicyne max (L.) Merill) with Lamtoro Gung (Leucaena leucocephala) Proportion on the Characteristics of Soy Milk Ramadhania, Rizky Laila; Saidi, Ida Agustini; Nurbaya, Syarifa Ramadhani; Machfudz, Al
Journal of Agri-Food Science and Technology Vol. 4 No. 1 (2023): April
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/jafost.v4i1.7317

Abstract

The utilization of soy milk is an alternative for people with lactose intolerance. Soy milk can be made with lamtoro gung substitution because the nutritional content of lamtoro gung is close to soybeans. This research aimed to determine the effect of soybean/lamtoro gung proportion on the characteristics of soy milk. This research was conducted from May until July 2022. The experimental study used a randomized block design with the treatment were soybean (K) with lamtoro gung (L) proportion S1 (K 100%: L 0%), S2 (K 95%: L 5%), S3 (K 90%: L 10%), S4 (K 85%: L 15%), S5 (K 80: L 20%), S6 (K 75%: L25), S7 (K 70%: L 30%) S8 (K 65%: L 35%), and S9 (K 60%: L 40%). The data obtained were then analyzed using analysis of variance and further test BNJ 5%, the organoleptic test used Friedman test, and determine the best treatment used effectiveness index. The results showed a significant effect of soybean with lamtoro gung proportion on protein content, vitamin C content, vitamin A content, pH, viscosity, TDS, and hedonic test of aroma and taste. The best treatment was S3 (soybean 90%: lamtoro 10% with characteristics of protein content 3.304%, vitamin C content 0.291%, vitamin A content 2.239 mg/g, pH 5.917, viscosity 3.533×103 mPa.s, TDS 7.833 °brix, and hedonic test of color 3.40, aroma 3.30, taste 3.40, and texture 3.20. This study contributes to evaluate the soy milk characteristics from soybean and lamtoro gung.
Metode ohmic heating untuk ekstraksi betasianin sebagai pewarna pangan dari kulit buah naga merah (Hylocereus polyrhizus): Ohmic heating method for betacyanin extraction from red dragon fruit peels (Hylocereus polyrhizus) Nurbaya, Syarifa Ramadhani; Saidi, Ida Agustini; Syahrorini, Syamsudduha; Machfudz, Al; Kusumawati, Elena Febri
TEKNOLOGI PANGAN : Media Informasi dan Komunikasi Ilmiah Teknologi Pertanian Vol 14 No 2 (2023)
Publisher : Program Studi Ilmu dan Teknologi Pangan, Universitas Yudharta, Pasuruan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35891/tp.v14i2.4208

Abstract

Natural food colorant is increasingly being developed and applied to food products. Natural food coloring is safer to use because it does not cause side effects to health. Indonesia is rich in the availability of red dragon fruit. In general, people only eat dragon fruit flesh, while the skin is not used. Red dragon fruit skin is rich in betacyanin pigment which produces a red-violet color. This pigment needs to be extracted so that it is separated from other skin components. Extraction using ohmic heating technology can be a solution to extract betacyanin pigment. The aim of the study was to determine the characteristics of the betacyanin pigment from red dragon fruit skin extracted using the ohmic heating method. The study used a factorial randomized block design consisting of two factors, the first factor was the type of solvent (aquades, 0.25% NaCl solution, 0.25% citric acid) and the second factor was the amount of voltage (30 V, 40 V, 50 V). The results showed that the highest betacyanin content was found in the 0.25% NaCl solvent treatment, which was 5.15 mg/L. Extracts stored in the refrigerator for 5 days did not show a significant change in extract betacyanin pigment levels.
Co-Authors Ida Agustini Saidi Kusumawati, Elena Febri Ramadhania, Rizky Laila Syahrorini, Syamsudduha Syarifa Ramadhani Nurbaya