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All Journal Majalah Obat Tradisional PYTHAGORAS: Jurnal Program Studi Pendidikan Matematika BIOEDUSCIENCE Indonesian Journal of Pure and Applied Chemistry Minda Baharu Jurnal Lemuru : Jurnal Ilmu Perikanan dan Kelautan Indonesia Jurnal Pembelajaran dan Biologi Nukleus JCP (Jurnal Cahaya Pendidikan) Fakultas Keguruan dan Ilmu Pendidikan Aceh Journal of Animal Science
Ismarti Ismarti, Ismarti
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Agriculture, Biological Sciences & Forestry Arts Biochemistry, Genetics & Molecular Biology Chemistry Earth & Planetary Sciences Education Environmental Science Health Professions Immunology & microbiology Languange, Linguistic, Communication & Media Mathematics Medicine & Pharmacology Physics Public Health Veterinary Other

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POTENCY OF ENHALUS ACOROIDES FROM INDONESIA REGION FOR HALAL PHARMACEUTICAL INDUSTRY Ismarti, Ismarti; Amelia, Fitrah
JURNAL LEMURU Vol 5 No 1 (2023): JURNAL LEMURU: Jurnal Ilmu Perikanan dan Kelautan Indonesia
Publisher : Program Studi Teknologi Hasil Perikanan|Fakultas Pertanian|Universitas PGRI Banyuwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36526/lemuru.v5i1.2423

Abstract

Currently, the implementation of the Halal assurance system in Indonesia is mandatory. A side from food, pharmaceutical, cosmetics, and medicines must all be halal certified. Natural products, particularly marine-based products, are an alternative choice for the cosmetics and pharmaceutical industry's raw materials. Enhalus acoroides are common along Indonesia's coasts and have the potential to be used as raw materials in halal cosmetics and pharmaceutical products. The purpose of this paper is to examine the potential of E. acoroides samples collected from various locations in Indonesia in terms of bioactive compounds and their applications. Secondary metabolites namely alkaloids, flavonoids, polyphenols, steroids, triterpenes, and tannins have been reported in E. acoroides extract from Indonesia, and they have the potential to be used as antibacterial, antiaging, antiviral, antitumor, and antioxidant in the pharmaceutical and cosmetic industries in Indonesia
The effect of Heyzine flipbook-based digital learning media on students' understanding of mathematical concepts Mawaddah, Dina; Gusmania, Yesi; Ismarti, Ismarti
CAHAYA PENDIDIKAN Vol 11, No 2 (2025): JCP (Jurnal Cahaya Pendidikan) Fakultas Keguruan dan Ilmu Pendidikan
Publisher : Universitas Riau Kepulauan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33373/chypend.v11i2.8474

Abstract

Based on a preliminary survey, students at Grade X SMK IT Darussalam Boarding School 01 Batam demonstrated a low understanding of mathematical concepts. This study aimed to examine: (1) the effect of Heyzine Flipbook-based digital learning media on students’ mathematical concept understanding, (2) the effect of conventional learning, and (3) the differences between the two methods. Using a quantitative approach, the population included all Grade X students in the 2025/2026 academic year. Purposive sampling was applied, with Grade X TKJ A (24 students) as the experimental class and Grade X TKJ B (19 students) as the control class. Data were collected through essay tests, consisting of three validated and reliable items. Data analysis involved assessing normality and homogeneity, as well as conducting hypothesis tests. The results revealed that: (1) Heyzine Flipbook significantly improved students’ understanding of mathematical concepts, (2) conventional learning also showed an effect on students’ understanding, though at a lower level, and (3) a significant difference was found between the two approaches, with Heyzine Flipbook proving more effective in enhancing students’ mathematical concept understanding.
Phytochemical Identification and Antioxidant Activity of Sea Cucumber Collagen Extracted by Maceration and Soxhletation Methods Salamah, Nina; Prasasti, Dian; Anwar, Muslih; Ramses, Ramses; Amelia, Fitrah; Ismarti, Ismarti
Majalah Obat Tradisional Vol 31, No 1 (2026)
Publisher : Faculty of Pharmacy, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/mot.105457

Abstract

Free radicals exert numerous detrimental impacts, necessitating the presence of antioxidants to mitigate these adverse consequences. Previous studies have documented the antioxidant activity of sea cucumber from the Holothuroidea family. However, the impact of extraction techniques on the antioxidant activity of sea cucumber extracts has not been well-studied. Thus, this study aims to examine collagen extracts’ antioxidant activity through two distinct processes: Soxhlet extraction and maceration. The extracted samples were concentrated using the freeze-drying method, followed by a phytochemical analysis, functional group identification via FTIR, and an antioxidant activity assessment using the DPPH method. The antioxidant activity is quantified by the IC50 value. The phytochemical analysis showed that the sea cucumber extract had alkaloids, phenolics, and saponins. The FTIR results indicated that the sea cucumber extract contained a functional carbonyl amide group, akin to that of peptide compounds. The IC50 value of sea cucumber extract obtained from maceration (10.558 ± 0.033) was compared to Soxhlet extraction (19.107 ± 0.041) µg/mL. The antioxidant activity of sea cucumber extract obtained from maceration was superior to that derived from the Soxhlet method.
Density, Morphometrics, Length–Weight Relationship, and Condition Factors of Manila Clams (Ruditapes philippinarum) in Waters Batam City Andriani, Fety; Ramses, Ramses; Syamsi, Fauziah; Ismarti, Ismarti
JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Vol 12, No 1: Jurnal Pembelajaran Dan Biologi Nukleus March 2026
Publisher : Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jpbn.v12i1.8766

Abstract

Background: The Manila clam Ruditapes philippinarum is an economically important marine bivalve and a key component of coastal ecosystems. Environmental factors such as sedimentation, salinity fluctuations, and human activities may influence its abundance, growth, and physiological condition. This study aimed to assess the abundance, morphometric characteristics, length–weight relationship, and condition factor of R. philippinarum in the waters surrounding Sarang Island, Batam Plot. Methodology: Sampling was conducted at three intertidal stations—Tempayang Island, Piring Island, and Layang Island—using purposive manual collection within 3 plot observation. Shell length, height, and thickness were measured using digital calipers, and total weight was recorded with a digital balance. Growth patterns were analyzed using log–log regression, while condition factors (K and WR) were used to evaluate physiological status. Findings: 87 individuals of R. philippinarum were recorded at Station 1, 118 at Station 2, and 117 at Station 3. The shell length of Ruditapes philippinarum ranged from 15.2 to 42.6 mm across all sampling stations. The length–weight relationship showed a weak correlation (r = 0.145) with a low coefficient of determination (R² = 0.21%) and a negative allometric growth pattern (b = −0.3419). The WR value (121.81) indicated generally good physiological condition. Water quality parameters were generally within tolerance limits; however, stations with higher total dissolved solids and lower water transparency indicated increased turbidity, which was associated with relatively smaller shell sizes of R. philippinarum compared to stations with better water clarity. Overall, variations in abundance and size among stations were influenced by environmental differences, while the R. philippinarum population remained relatively healthy. Contributions: These findings provide baseline ecological information that can support future monitoring and sustainable management strategies for R. philippinarum resources in intertidal coastal ecosystems
Diversity of Sea Cucumbers (Holothuroidea) in the Waters of Sarang Island and the Nenek Strait, Batam City, Riau Islands, Indonesia Novianti, Devi; Ramses, Ramses; Ismarti, Ismarti; Amelia, Fitrah
JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Vol 12, No 1: Jurnal Pembelajaran Dan Biologi Nukleus March 2026
Publisher : Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jpbn.v12i1.8798

Abstract

Background: Sea cucumbers (Holothuroidea) are key benthic organisms that contribute to coastal ecosystem stability through bioturbation, organic matter decomposition, and their role in marine food webs. However, despite their ecological and economic importance, information on the diversity and community structure of sea cucumbers in the waters of Batam City, remains limited. This study aimed to analyze the diversity of sea cucumbers in the waters of Sarang Island and the Nenek Strait, as a basis for evaluating ecological conditions and supporting sustainable marine resource management. Methodology: Sampling was conducted in the intertidal zone using the sweeping method during nighttime to accommodate the nocturnal activity of sea cucumbers, using two transects at each sampling station. Species identification was based on morphological and visual characteristics, while environmental parameters such as temperature, pH, salinity, dissolved oxygen, water transparency, and current velocity were measured in situ. Findings: Five sea cucumber species were identified, namely Stichopus herrmanni, Holothuria leucospilota, H.scabra, Bohadschia aegyptia, and H. fuscopunctata. Community structure was then analyzed using the Shannon–Wiener diversity index (H’), evenness index (E), and Simpson’s dominance index (C). At Sarang Island, 25 individuals representing five species were recorded, with Actinopyga mauritiana dominating 64% of the population, resulting in moderate diversity (H’ = 0.576), low evenness (E = 0.358), and high dominance (C = 0.453). In the Nenek Strait, 22 individuals from three species were identified, showing moderate diversity (H’ = 1.059), high evenness (E = 0.964), and low dominance (C = 0.360), actinopyga mauritiana dominated 64% of the population, likely due to its higher tolerance to local environmental conditions and its preference for sandy–muddy substrates commonly found in the study area, indicating a more balanced community structure. Contributions: These findings highlight spatial variation in sea cucumber communities related to habitat characteristics and ecological pressure, contributing baseline scientific data on the diversity and community structure of Holothuroidea in Batam coastal waters
Co-Authors Andriani, Fety Anwar, Muslih Daniel Marpaung, Carlos Bettran Devi Novianti, Devi Dian Prasasti Dinata, Rifal Fauziah Syamsi, Fauziah Fitrah Amelia Hasibuan, Nirma Adeseprianah Hermansah Hermansah, Hermansah Jaya Dwi Putra, Jaya Dwi Mawaddah, Dina Nina Salamah Qoriaturrosyidah, Fitri Raja Rizsca Gusfyana, Raja Rizsca Ramses Firdaus, Ramses Simanjuntak, Friska Yanti Sulistyo, Agus Suryo Hartanto Yesi Gusmania, Yesi Yudhi Hanggara