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Journal : TEKNOLOGI PANGAN : Media Informasi dan Komunikasi Ilmiah Teknologi Pertanian

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.
Pengaruh perlakuan blanching dan proporsi terhadap kualitas penyedap rasa alami dari jamur tiram dan jamur merang: The effect of blanching treatment and proportion on the quality of natural flavorings of oyster mushrooms and straw mushrooms Azara, Rima; Budiandari, Rahmah Utami; Nurbaya, Syarifa Ramadhani; Adawiyah, Robiatul
TEKNOLOGI PANGAN : Media Informasi dan Komunikasi Ilmiah Teknologi Pertanian Vol 15 No 2 (2024)
Publisher : Program Studi Ilmu dan Teknologi Pangan, Universitas Yudharta, Pasuruan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35891/tp.v15i2.5458

Abstract

Straw mushrooms (Volvariella volvacea) and oyster mushrooms (Pleurotus ostreatus) contain natural glutamic acid which has the ability to provide a high-quality taste that is similar to the taste produced by Monosodium glutamate, making it suitable for use as a natural flavoring powder. This research uses RAK which is arranged factorially, namely the blanching method and the proportion of straw mushrooms (Volvariella volvacea) and oyster mushrooms (Pleurotus ostreatus). Based on the analysis of variance, it was found that there was an interaction between the blanching method and the proportion of straw and oyster mushrooms on physical analysis, namely yield, chemical analysis, namely water content and protein content and had no significant effect on organoleptic analysis. The best treatment results were the natural mushroom flavoring treatment with steamed blanching treatment and a mushroom proportion of 50%:50% (B1P2) which showed a yield of 3.69%, a lightness value of 74.31, a redness value of 5.74, a yellowness value of 14.30, water content 6.94%, protein content 41.36%, color organoleptic test 3.87 (like – really like), taste organoleptic test 3.20 (like) and aroma organoleptic test 3.20 (like). The aim of the research This is to determine the effect of the blanching method and the proportion of straw mushrooms (Volvariella volvacea) and oyster mushrooms (Pleurotus ostreatus) on the quality of the natural flavoring of mushrooms