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Lantanida Journal
Published by Universitas Islam Negeri Ar-Raniry Banda Aceh
ISSN : 23563133     EISSN : 25489062     DOI : -
Core Subject : Science, Education, Engineering,
Chemical Engineering, Chemistry & Bioengineering Chemistry Education
Lantanida Journal is an, scientific journal open-access containing results research, literature reviews and recent news on science and technology in the areas of educational learning and learning development. This journal is formed from the initiative of Leaders Chemistry departmen, lecturers, staff, alumni and students of Chemistry Education Department UIN Ar-Raniry Banda Aceh.
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Articles 8 Documents
 1 
Search results for , issue "Vol 9, No 1 (2021)" : 8 Documents clear
PENGEMBANGAN LKPD BERBASIS CHEMO-EDUTAINMENT (CET) PADA MATERI STOIKIOMETRI Rani Puspita Hami
Lantanida Journal Vol 9, No 1 (2021)
Publisher : UIN AR-RANIRY

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22373/lj.v9i1.8727

Abstract

The objective of this study was to create learning media in the form of Chemo-Edutainment-based worksheets on stoichiometric material and to determine the characteristics and quality of the products being developed. It used a research and development model with a 4-dimensional development model which consisted of define, design, develop, and disseminate. However, research activities are only carried out until the development stage considering the limited time for research and the unfavorable conditions of the Covid-19 pandemic. The product characteristics developed are arranged based on the CET components. The quality of CET-based student worksheets on stoichiometric material is categorized as very feasible with a coefficient (V) of 0.86 for each expert validation. The results of student responses to the CET-based student worksheets showed an average percentage of 82% with a sufficiently valid category to be used as a reference for learning resources. To measure students’ cognitive skill, it used pretest and posttest throughout the N-gain test. Then, the N-gain value of 0.83 is classified as a high category.
THE FORMULATION OF PEEL-OFF MASK FROM THE ETHANOL EXTRACT OF BILIMBI LEAVES (Averrhoa blimbi L.) AS ANTI-ACNE TREATMENT Irma Zarwinda; Fauziah Fauziah; Jumirna Jumirna; Azmalina Adriani
Lantanida Journal Vol 9, No 1 (2021)
Publisher : UIN AR-RANIRY

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22373/lj.v9i1.10206

Abstract

This research aims to formulate and assess the efficacy of the peel-off mask as an anti-acne of ethanol extract from bilimbi leaves (Averrhoa bilimbi L.).  The method used was an experiment, evaluating the extract through the inhibition test of Staphylococcus epidermis bacteria with the paper disk diffusion method. The peel-off mask formulation added the extract with a concentration of 7% (F1), 9% (F2), 11% (F3), and without using extract (F0). The Peel-off mask preparation testing includes the detection of scents, colours, irritation checks, and the determination of peel-off anti-acne mask efficacy. This study was carried out at Akafarma of Banda Aceh and the Chemistry laboratory of FKIP Unsyiah. The findings of the inhibition zone for Staphylococcus epidermis bacteria at extract concentrations of 100%, 75%, 50% and 25% were 15 mm, 12 mm, 11 mm and 10 mm, respectively. The four peel-off mask formulas were gel, homogeneous, brown, with the distinctive scent of bilimbi leaves, and did not irritate the volunteers’ skin. The average decline in acne before and after using the mask for any formula (F0, FI, FII, and FIII) was 19.64%, 22.63%, 28.75% and 50%, respectively. The peel-off mask of ethanol extract of bilimbi leaves (Averrhoa bilimbi L.) is effective as an anti-acne treatment.
KARAKTERISTIK DAN KUALITAS MUTU KARAGINAN RUMPUT LAUT DI INDONESIA Surya Adi Saputra; Muammar Yulian; Khairun Nisah
Lantanida Journal Vol 9, No 1 (2021)
Publisher : UIN AR-RANIRY

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22373/lj.v9i1.9189

Abstract

Carrageenan is a product produced from the extraction process of red seaweed (Rhodophyceae). Carrageenan can be used in various business fields, both in the food and non-food sectors, which function as a gelling additive, binder, emulsifier and stabilizer. The research method used is Literature Review with data collection and screening that has inclusion and exclusion criteria. The results obtained indicate that the quality characteristics and quality for water content and average gel strength have not met the established standards, while the yield value, ash content and average viscosity have met the quality standards set by FAO, FCC and EEC. . The factors that greatly affect the characteristics and quality of carrageenan from seaweed are alkaline concentration, seaweed harvesting age, temperature and extraction time as well as the type and environmental conditions where the seaweed grows.
KEMAMPUAN REPRESENTASI SUBMIKROSKOPIK SISWA PADA KONSEP IKATAN KIMIA Chusnur Rahmi; Mujakir Mujakir; Pipi Febriani
Lantanida Journal Vol 9, No 1 (2021)
Publisher : UIN AR-RANIRY

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22373/lj.v9i1.9336

Abstract

This study is motivated by the difficulty of leaners to understanding the concept of chemical bonding as a whole. Learning that does not represent submicroscopic level causes leaners difficulty to resolving submicroscopic based chemistry questions. This study aims to describe leaner’s ability in represent the concept of chemical bonding at the submicroscopic level. A qualitative descriptive method used in this study. The participants of the study were 30 leaners XI grade of SMA Negeri 1 Meulaboh. The submicroscopic based test instrument was employed in the study to collect the data. The result of study showed that the leaner’s ability of submicroscopic representation about chemical bonding as a whole falls into the category of enough with a percentage of 58.78%.  The average leaners score is 59.32 included in the criteria of sufficient understanding. Generally, leaners were not able to solve the submicroscopic based questions about chemical bonding as expected. The low ability of submicroscopic representation is due to leaners are not used to describing the ions, electrons, and molecular shapes submicroscopically, understanding of chemical bonding concept that are not yet intact, lack of interest and attention of leaners in receiving concept in the learning process.
HASIL VALIDASI DAN UJI KETERPAHAMAN BUKU PENGAYAAN BIOKIMIA MATERI KARBOHIDRAT TERINTEGRASI KEISLAMAN Tika Ayudia Hartana; Siti Suryaningsih; Buchori Muslim
Lantanida Journal Vol 9, No 1 (2021)
Publisher : UIN AR-RANIRY

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22373/lj.v9i1.9346

Abstract

The State Islamic University of Syarif The State Islamic University of Syarif Hidayatullah Jakarta has a vision to become a world-class university with the excellence of scientific, Islamic and Indonesian integration. The chemistry education study program has implemented it in Islamic integrated learning, but there are not many teaching materials available in the form of Islamic integrated enrichment books in several courses, one of which is the biochemistry course. The purpose of this study is to develop teaching materials in the form of an Islamic integrated biochemical enrichment book, carbohydrate materials that are suitable for use. This study uses the 4STMD (Four Steps Teaching Material Development) method. The stages are the stage of selection, structuring, characterization and reduction. Validation data were obtained from chemical integration experts with Islam and media experts. The number of respondents was 59 students of the 8th semester of 2016 class of chemistry education who have received biochemistry courses and Islamic and science courses. This enrichment book has been through field trials, namely testing the comprehension of the text to the respondents. The results of the research from the validation of Islamic religious experts show that the concept of biochemical and Islamic integration is valid and feasible to use with the high category comprehension test of 83.6% with the concept criteria easy to understand. The results of the feasibility test from media experts were 84.57%. Islamic integrated biochemical enrichment book on carbohydrate material is suitable for use with very good criteria. This book can be used as an integrated biochemical enrichment book for Islam and Indonesia.
KITOSAN DARI JAMUR TIRAM (Pleurotus ostreatus) DAN APLIKASINYA SEBAGAI ADSORBEN LOGAM KROM (Cr) Dhini Annisa Rahmasari Kanto; Riza Apriani; Mira Ilhami; Ai Eva
Lantanida Journal Vol 9, No 1 (2021)
Publisher : UIN AR-RANIRY

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22373/lj.v9i1.8335

Abstract

Oyster mushroom is one of the organisms that can be used as a chitosan source. Chitosan can be produced from chitin through deacetylation. As a chitin derivative compound, chitosan has immense application. In this study, chitin and chitosan were isolated from oyster mushrooms as much as 1.696% and 0.174% from 500 g of dried mushroom. The degree of deacetylation of chitosan is 80.70%. As a polycationic polymer, one of its applications is a metal adsorbent. Cr metal is a heavy metal that is mostly found in leather industrial waste. Chitosan is used as a Cr metal adsorbent to reduce Cr metal content in the solution. This study showed that there was a reduction of Cr metal content as much as 82.75%. Thus, chitosan isolated from oyster mushrooms in this study has the potential to be a bio-adsorbent in order to reduce Cr metal content in leather industrial waste.
PENENTUAN KADAR FLAVONOID DARI EKSTRAK KULIT SALAK (Salacca zalacca. Reinw) BERDASARKAN PERBEDAAN PENGERINGAN SIMPLISIA Robbiyan Robbiyan; Mauritz Marpaung Pandapotan; Riza Apriani
Lantanida Journal Vol 9, No 1 (2021)
Publisher : UIN AR-RANIRY

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22373/lj.v9i1.8498

Abstract

The skin of the thorny palm has been empirically recognized by some people as a traditional medicine for beauty, antimicrobial, and antidiabetic. Compounds that act as treatment in the skin of the thorny palm is flavonoids. The study aims to determine the total flavonoid of the thorny palm rind extract based on differences in the drying of simplicia. The simplicia drying method used was oven-dry, direct sunlight, indirect sunlight, and air dry and fresh samples as control. Extraction using the maceration method with ethanol p.a. solvent. Determination of total flavonoid levels from the extract of thorny palm rind using the UV-Vis spectrophotometric method with quercetin standard solution. The qualitative test results showed that the skin of the thorny palm contains flavonoids after the addition of 1% AlCl3. The total flavonoid content in the fresh sample was 0.00342%, direct sunlight was 0.00350%, oven-dry was 0.00340%, dry air was 0.00357%, and indirect sunlight was 0.00361%. Therefore, it can be concluded that the highest flavonoid content in the extract of thorny palm rind is found in the indirect sun drying method.
POTENSI BEBERAPA JENIS RUMPUT LAUT DI ACEH (STUDI KASUS: SKRINING FITOKIMIA DAN AKTIVITAS ANTIOKSIDAN) Adean Mayasri
Lantanida Journal Vol 9, No 1 (2021)
Publisher : UIN AR-RANIRY

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22373/lj.v9i1.10169

Abstract

One of the sea potentials in Aceh is seaweed. Seaweed contains secondary metabolites and antioxidants that are very well consumed because it can act as an antidote/protector from the free radicals. This study aimed to determine the secondary metabolite content and antioxidant activity of seaweed in Aceh.The seaweed that has been macerated then screened for phytochemicals and tested for antioxidant activity by using the DPPH method. The seaweed species found were Gracillaria verrucosa, Sargassum sp., and Chaetomorpha antennina. The results of this study indicated that Gracillaria verrucosa, Sargassum sp., and Chaetomorpha antennina seaweeds were contained by alkaloids and steroids. Flavonoid and saponins were only detected in the types of seaweed Gracillaria verrucosa and Sargassum sp. It was also found that the higher the concentration of the extract, the higher the percentage of IC50 against free radicals. The Sargassum sp. has a stable percentage of inhibition at a 2-10 ppm concentration, so it is recommended in this study to be considered cultivated in Aceh.

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