Article Per Year (5 Year)
p-Index From 2020 - 2025
0.444
P-Index
This Author published in this journals
All Journal Science and Technology Indonesia Al Intisyar: Jurnal Pendidikan Bahasa Arab
SARI, LATIFAH
Unknown Affiliation
Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Education Environmental Science Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Physics Other

Published : 2 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 2 Documents
Search

 1 
Thatwir Wasilah Power Point Tafau’li Li Tarqiyati Qudratu At-Thalabah ‘Ala Maharatil Kalam Rahmah, Meutia; Sari, Latifah; Rahmatunnisak
Al Intisyar: Jurnal Pendidikan Bahasa Arab Vol 8 No 2 (2023): VOLUME 8 No. 2 Tahun 2023
Publisher : Program Studi Pendidikan bahasa Arab IAIN Langsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32505/intisyar.v8i2.7348

Abstract

Purpose- This study aims to develop media interactive power point in improving speaking in Arabic lessons, determine the level of validity of media, and measure the level of effectiveness of the developed media.Design/Methodology/Approach- This study uses research and development methods based on the Dick and Carry model with special treatment from researchers. Sources of data from students, Arabic language studies teacher and expert validators were obtained throuhg observation, interviews, questionnaire and test. The data will then be analyzed qualitatively and quantitatively simultaneously with interactive analysis. The subjects of this study were is eight-sixth grade which is also called language class, with a total of 33 samples.Findings Among the results of this study were the results of the small groups with a rate of 87% and large groups with a rate of 92%, and on material validation with a rate of 100% and on media validasi with a rate of 92%. Thus media developed based on interactive power point are effective in improving thills of students in Arabic lessons.Research Limitation/Implication- the formal finding of this research is a media development to make it easier for teachers to teach, based on interactive power point can improve Arabic speaking skills for students
Complexation and Colour Stability of Anthocyanins from the Extracts of Java Plum Fruits (Syzygium cumini) with Selected Metal Cations (Al3+, Fe3+, and Ca2+) at Various pHs Wathon, Muhammad Hizbul; Susilowati, Endang; Ariani, Sri Retno Dwi; Sari, Latifah
Science and Technology Indonesia Vol. 10 No. 1 (2025): January
Publisher : Research Center of Inorganic Materials and Coordination Complexes, FMIPA Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26554/sti.2025.10.1.43-55

Abstract

Anthocyanins are highly coloured polyphenols, a class of flavonoids, which are natural, non-toxic, and water-soluble compounds. Because of that, anthocyanins have been used in numerous applications, such as natural colorants for foods, beverages, and textiles. However, anthocyanins have some drawbacks regarding their stability towards temperature, pH, and light, leading to degradation. One method to improve anthocyanins’ stability can be achieved through a complexation reaction of anthocyanins with metal cations. Thus, this study aimed to investigate the stability and colour profiles of anthocyanins extracted from Java Plum fruits (Syzygium cumini) complexed with Al3+, Fe3+, and Ca2+ ions in pH 1-12. Previously, anthocyanins from Java Plum fruits have been identified by LC-MS as cyanidin-3-O-glucoside ([M]+, m/z 449.3), delphinidin-3-O-glucoside ([M]+, m/z 465.3), and petunidin O-glucoside ([M]+, m/z 479.3). The ATR FTIR was also performed to confirm the functional group of anthocyanins. The colour of each solution at different pH was evaluated by UV-Vis Spectrophotometer at 200-800 nm. Complexation of anthocyanins with Al3+, Fe3+, and Ca2+ ions showed various colours at different pHs. The complexation of anthocyanins with Al3+ at pH 4-5 developed a blue colour. The intensity of the blue colour increases with an increase in Al3+ ion concentration. This investigation showed the potential application of anthocyanin-metal chelation for the textile industry due to the range of colour produced. Furthermore, the complexation of anthocyanins to produce blue colour can be an alternative in food industries as this colour is difficult to obtain in acidic pH.
Co-Authors Endang Susilowati Rahmah, Meutia Rahmatunnisak Sri Retno Dwi Ariani Wathon, Muhammad Hizbul