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All Journal Media Farmasi : Jurnal Ilmu Farmasi (Journal Of Pharmaceutical Science) JTAM (Jurnal Teori dan Aplikasi Matematika)
Sari, Septi Puspita
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Chemistry Immunology & microbiology Materials Science & Nanotechnology Mathematics Medicine & Pharmacology

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The potential of Sumbawa Honey (Apis dorsata) As a Natural Antioxidant Yumni, Gharsina Ghaisani; Listiana, Fina; Sari, Septi Puspita; Nadhiroh, Siti; Sumantri, Sumantri
Media Farmasi: Jurnal Ilmu Farmasi Vol. 20 No. 2: September 2023
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/mf.v20i2.24705

Abstract

Honey is a natural ingredient that Indonesian people widely use to maintain a healthy body. One of the benefits of honey is as an antioxidant. This antioxidant activity is influenced by the producing bee, the source plant, and the producing area. This study aims to determine the antioxidant activity of Sumbawa honey originating from NTT. Honey samples were collected and dried using the freeze-drying method and then macerated with 70% ethanol. The viscous extract obtained was then fractionated using a liquid-liquid extraction method using n-hexane, ethyl acetate and ethanol-water as solvents so that the n-hexane (NF), ethyl acetate (EF) and water (WF) fractions were obtained. Each sample was tested for its antioxidant activity using the ABTS method with Trolox as a comparison. The results obtained were ethanol extract, NF, EF and AF had IC50 values respectively 96.054; 106,953; 70,206; and 101,649 g/ml. That indicates that the ethyl acetate fraction has a higher antioxidant activity than other solvents. 
Students' Numeracy Skills Relating to Algebra Topic Using COVID-19 Context Sari, Septi Puspita; Zulkardi, Zulkardi; Darmawijoyo, Darmawijoyo
JTAM (Jurnal Teori dan Aplikasi Matematika) Vol 5, No 1 (2021): April
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jtam.v5i1.3881

Abstract

The Minimum Competency Assessment (MCA) is a basic competency assessment that will be carried out by the ministry of education and culture in Indonesia in 2021, one of the assessments is numeracy. Algebraic material is one of the important materials for students to learn related to everyday problems. The use of context is important in learning algebra. In this regard, the discussion which is now a topic of discussion for all groups not only from Indonesia but the world, namely Covid-19, can be an interesting context to raise. This study, describes the numeracy skills of students in working on algebraic questions, research subjects are students with heterogeneous abilities (medium, high, low) using a descriptive qualitative approach, with collection techniques in the form of tests, and interviews. The research subjects were grade VII students. Wherefrom the research, it was found that there were still unfulfilled numerical indicators, namely indicators of interpreting it to conclude. While indicators that often appear are using numbers and mathematical symbols in solving problems in life.
Co-Authors Darmawijoyo, Darmawijoyo Gharsina Ghaisani Yumni Listiana, Fina Siti Nadhiroh, Siti Sumantri Sumantri Zulkardi Zulkardi