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Ali Rosidi
Ilmu Gizi, Universitas Muhammadiyah Semarang
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology

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EFEKTIVITAS BERBAGAI PELARUT ORGANIK PADA EKSTRAKSI SENYAWA FUNGSIONAL BERAS HITAM Nurhidajah Nurhidajah; Ali Rosidi; Yunan Kholifatuddin Sya'di; Diode Yonata
AGROINTEK Vol 16, No 1 (2022)
Publisher : Agroindustrial Technology, University of Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/agrointek.v16i1.12194

Abstract

Functional compounds from black rice were extracted conventionally using organic solvents, namely ethanol-distilled water and ethanol-distilled water-acid (acetic acid and a mixture of lactic acid and acetic acid) along with distilled water as control. The effectiveness of each solvent was determined by analysis of functional compounds contents (anthocyanin content, flavonoids, total phenolic, and antioxidant activity), pH value, and the resulting color characteristics. The ethanol-distilled water-citric acid solvent produced significantly higher levels of anthocyanin, total phenolic, and antioxidant activity, with the lowest extraction pH, but produced fewer flavonoids. Red-purple black rice extract has the lowest brightness. The ethanol-distilled water-citric acid solvent has the best effectiveness in the extraction of black rice functional compounds.
Total fenolik dan aktivitas antioksidan formula susu kecambah kedelai dan ekstrak beras hitam terenkapsulasi dengan variasi jenis penyalut Siti Aminah; Wikanastri Hersoelistyorini; Agus Suyanto; Nurrahman Nurrahman; Ali Rosidi; Wulandari Meikawati; Diode Yonata
AGROINTEK Vol 16, No 4 (2022)
Publisher : Agroindustrial Technology, University of Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/agrointek.v16i4.13432

Abstract

Soybean sprouts and black rice have bioactive components that are beneficial for health. Both of these ingredients can be developed as functional drink ingredients. Encapsulation is one method to maintain bioactive components. This study aims to determine the total phenol content and antioxidant activity of the formula of soy sprouted milk (SKK): encapsulated black rice extract (EBH) (F1: SKK 100 %: EBH 0 %; F2: SKK 75 %: EBH 25 %; F3: SKK 50 %: EBH 50 %; F4: SKK 25 %: EBH 75 %; F4: SKK 0 %: EBH 100 %), with various coating materials: maltodextrin (MDE), Arabic gum (GA) and a mixture of MDE:GA (MGA). The results showed that the highest total phenol was obtained at F5, of all coatings: MDE (85.06 mg GAE/kg); GA (84.27 mg GAE/kg); MGA (82.49 mg GAE/kg). The highest antioxidant activity was obtained in the F3 treatment, with GA coating (58.009 % RSA). It is known that there is a tendency to increase total phenolic, in the formulation of higher concentrations of EBH. In general, MGA combined coating materials produced higher mean total phenols than MDE and GA alone. There was no tendency to increase antioxidant activity in either the formula or the type of coating
Co-Authors Agus Suyanto Diode Yonata Nurhidajah - Nurrahman Nurrahman Wikanastri Hersoelistyorini Wulandari Meikawati Yunan Kholifatuddin Sya’di