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Uji Aktivitas Antibakteri Ekstrak Petis Udang terhadap Escherichia Coli dan Staphylococcus Aureus Menggunakan Metode Paper Disk Aisha Noviadianty; Ardi Mustakim
Konstanta : Jurnal Matematika dan Ilmu Pengetahuan Alam Vol. 3 No. 3 (2025): September : Jurnal Matematika dan Ilmu Pengelatuan Alam
Publisher : International Forum of Researchers and Lecturers

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59581/konstanta.v3i3.5297

Abstract

This study aims to evaluate the antibacterial activity of shrimp paste extract against Escherichia coli (Gram-negative) and Staphylococcus aureus (Gram-positive) using the paper disk method. The shrimp paste was extracted using ethanol as a solvent and tested for its inhibitory effect on bacterial growth through paper disks infused with various concentrations of the extract. The results showed that the shrimp paste extract exhibited antibacterial activity against both bacterial species, with varying inhibition zone diameters depending on the concentration used. Higher antibacterial activity was observed against Staphylococcus aureus compared to Escherichia coli, indicating that shrimp paste has potential as a natural antibacterial agent, particularly against Gram-positive bacteria. These findings support the utilization of fishery by-products such as shrimp paste as an eco-friendly alternative source of natural antibacterial agents.
Identifikasi Mikroorganisme Bakteri Laktobasilus sp dari Hasil Permentasi Ikan Channa Striata (Ikan Gabus) Bathin VIII Sarolangun Jambi Muthiya Amalia; Ardi Mustakim
Konstanta : Jurnal Matematika dan Ilmu Pengetahuan Alam Vol. 3 No. 3 (2025): September : Jurnal Matematika dan Ilmu Pengelatuan Alam
Publisher : International Forum of Researchers and Lecturers

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59581/konstanta.v3i3.5362

Abstract

This study aims to identify Lactobacillus sp. bacteria obtained from the fermentation of Channa striata fish (snakehead fish) originating from Bathin VIII, Sarolangun, Jambi. Snakehead fish is known to have high protein content and bioactive compounds that support the growth of probiotic microorganisms, especially lactic acid bacteria (LAB). Fermentation was carried out naturally for several days under controlled conditions, then isolation and characterization of bacteria were carried out through culture techniques on de Man Rogosa Sharpe Agar (MRSA) media. Initial identification was carried out using colony morphology tests, Gram staining, and basic biochemical tests. The isolation results showed the presence of round, convex, and milky white colonies, and showed Gram-positive and rod-shaped properties, which are typical characteristics of Lactobacillus sp. This study indicates that fermented snakehead fish can be a natural source of Lactobacillus sp. isolates that have the potential to be developed as probiotics in functional foods or local fermented products. These findings are expected to contribute to the development of local microorganism-based food technology and increase the economic value of snakehead fish in the Jambi region. Further research is needed to test the functional potential and safety of the isolated strains.
Analisis Bakteri dalam Air Sungai Batanghari : Evaluasi Potensi Pencemaran Mikrobiologis dan Dampaknya terhadap Kesehatan Masyarakat di Jambi Tamimil Hasanah; Ardi Mustakim
Konstanta : Jurnal Matematika dan Ilmu Pengetahuan Alam Vol. 3 No. 3 (2025): September : Jurnal Matematika dan Ilmu Pengelatuan Alam
Publisher : International Forum of Researchers and Lecturers

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59581/konstanta.v3i3.5390

Abstract

The Batanghari River is a vital water source in Jambi Province, used by the community for various purposes, including domestic, agricultural, and fisheries needs. However, with increasing human activities, such as the discharge of household waste, industrial waste, and agricultural waste, the river's water quality is at risk of microbiological contamination that can endanger public health and the environment. This study aims to identify the presence of bacteria in the Batanghari River water, in order to assess the potential for biological contamination that can negatively impact public health and the surrounding ecosystem. The method used in this study included taking water samples from several locations along the river. After sampling, bacterial isolation and identification were carried out using Nutrient Agar (NA) media using the pour method. The results of the isolation process showed the growth of bacterial colonies that varied in shape, size, and color, indicating microbiological contamination, especially by heterotrophic bacteria. These findings indicate that the Batanghari River water contains microorganisms that reflect the potential for microbiological contamination. Therefore, this study emphasizes the importance of regular water quality monitoring and the need for sustainable management measures to maintain the health of the ecosystem and surrounding community. With routine monitoring, it is hoped that potential contamination that could be harmful to health can be detected early. Furthermore, the results of this study are expected to form the basis for better policy-making in water resource management and increase public awareness of the importance of maintaining water quality for sustainable life and environmental health. This study provides a preliminary overview of the microbiological condition of the Batanghari River water and emphasizes the need for greater attention in water resource management to prevent negative impacts on health and the environment.
Studi Mikrobiologis terhadap Jenis Bakteri yang Terlibat dalam Proses Fermentasi Tempoyak Buah Durian Nazwa Nayla Putri; Ardi Mustakim
Konstanta : Jurnal Matematika dan Ilmu Pengetahuan Alam Vol. 3 No. 3 (2025): September : Jurnal Matematika dan Ilmu Pengelatuan Alam
Publisher : International Forum of Researchers and Lecturers

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59581/konstanta.v3i3.5391

Abstract

Tempoyak is a traditional Indonesian fermented food made from the flesh of durian (Durio zibethinus Murr.), which undergoes spontaneous fermentation driven by indigenous microorganisms. The fermentation process generally occurs under anaerobic conditions and is primarily dominated by lactic acid bacteria (LAB), including species such as Lactobacillus, Leuconostoc, and Pediococcus. These bacteria play a crucial role in modifying the physicochemical properties of the product, including a significant reduction in pH, an increase in the concentration of organic acids, and the formation of volatile compounds responsible for tempoyak’s distinctive aroma and overall flavor complexity. In addition to enhancing its unique sensory profile, the fermentation process also extends the shelf life and introduces probiotic potential to the final product. This study aims to observe and analyze the microbiological and chemical aspects of tempoyak fermentation and to evaluate its potential as a local functional food with health-promoting properties. Laboratory tests and microbial analyses confirmed that the fermentation process not only retains essential nutrients but also promotes the growth of beneficial bacteria, provided the production conditions are hygienically maintained at all stages. The study emphasizes the importance of controlled fermentation techniques to ensure product safety and consistent quality. Furthermore, the findings reveal that tempoyak could serve as a promising probiotic-rich food that supports digestive health, contributing to the diversification of traditional Indonesian fermented foods. With its appealing flavor, cultural value, growing consumer interest, and potential health benefits, tempoyak holds significant promise for future development and commercialization, particularly in the field of functional food innovation rooted in indigenous culinary practices.
Isolasi dan Identifikasi Bakteri Asam dari Rebung Fermentasi Tradisional dari Desa Panti Nyimas Fatiyah Aini; Ardi Mustakim
Konstanta : Jurnal Matematika dan Ilmu Pengetahuan Alam Vol. 3 No. 3 (2025): September : Jurnal Matematika dan Ilmu Pengelatuan Alam
Publisher : International Forum of Researchers and Lecturers

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59581/konstanta.v3i3.5409

Abstract

Traditional bamboo shoot fermentation is a hereditary practice still preserved by the people of Panti Village, Pasaman Regency. This process not only serves as a natural preservation method but also makes an important contribution to the formation of distinctive flavors and increases the nutritional value of bamboo shoots. One key aspect of this fermentation process is the activity of microorganisms, particularly lactic acid bacteria, which play a role in the production of metabolites such as lactic acid, which functions as a natural preservative, inhibits the growth of pathogenic microbes, and contributes to the distinctive flavor and aroma of fermentation. The main objective of this study was to isolate and identify the types of lactic acid bacteria found in traditionally fermented bamboo shoots. Fermented bamboo shoot samples were taken from several local production houses in Panti Village. The microbial isolation process was carried out using selective media MRS (de Man, Rogosa, and Sharpe) agar, which is commonly used for the growth of lactic acid bacteria. The obtained isolates were then analyzed through colony morphology observation, Gram staining, and microscopic tests to determine initial characteristics. Further identification was carried out through a series of biochemical tests to determine the genus and species of the bacteria. The results of the study showed the presence of several Gram-positive, rod-shaped bacterial isolates that are strongly suspected to belong to the lactic acid bacteria group, such as Lactobacillus plantarum. This bacterium is known to have probiotic potential and functional benefits in fermented food products. These findings indicate that traditional fermented bamboo shoots can be a potential source of functional bacterial isolates that are beneficial for the food industry, particularly in the development of probiotic products, natural preservatives, and food additives based on local fermentation. This study emphasizes the importance of preserving local wisdom in food fermentation practices as a foundation for sustainable, culturally aware food technology innovation and supporting food security based on local resources.
Fermentasi Tradisional, Khasiat Modern: Tapai Ketan Hitam sebagai Solusi Nutraceutical Penurun Kolesterol Fathiya Rizki Aninda; Ardi Mustakim
Konstanta : Jurnal Matematika dan Ilmu Pengetahuan Alam Vol. 3 No. 3 (2025): September : Jurnal Matematika dan Ilmu Pengelatuan Alam
Publisher : International Forum of Researchers and Lecturers

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59581/konstanta.v3i3.5410

Abstract

Black sticky rice tapai is a traditional Indonesian fermented food that has long been consumed by the public for its distinctive taste and high cultural value. However, with the increasing demand for functional foods and natural-based products that can support health, attention for black sticky rice tapai has shifted from being simply a traditional food to an object of scientific study in the nutraceutical field. Black sticky rice, the basic ingredient for tapai, contains important bioactive compounds such as anthocyanins, flavonoids, B-complex vitamins, and soluble fiber, which have been shown to play a role in lowering cholesterol levels, inhibiting LDL cholesterol oxidation, and increasing HDL cholesterol levels in the blood. The fermentation process further enhances the biological activity of these compounds, making black sticky rice tapai have a higher therapeutic value than ordinary black sticky rice. The purpose of this study was to examine the potential of black sticky rice tapai as a natural, tradition-based solution for lowering cholesterol levels, while also supporting the development of local foods into modern health products that are safe, effective, and affordable. The study was conducted using a descriptive literature review method of various scientific articles, textbooks, and relevant research results that discuss the nutritional content of black sticky rice, the benefits of fermentation, and the effect of active components on lipid metabolism. The study results show that regular consumption of black glutinous rice tapai has the potential to lower total and LDL cholesterol levels and increase HDL through a combination of antioxidant effects, cholesterol binding by fiber, and increased fat excretion. In addition, the potential of black glutinous rice tapai as a nutraceutical is also relevant in supporting the preservation of local-based culture and food independence.
Mengungkap Peran Penting Bakteri Asam Laktat dalam Fermentasi Mandai (Artocarpus integer) : Studi Isolasi dan Karakterisasi Nailla Indayani Sumardi; Ardi Mustakim
Konstanta : Jurnal Matematika dan Ilmu Pengetahuan Alam Vol. 3 No. 3 (2025): September : Jurnal Matematika dan Ilmu Pengelatuan Alam
Publisher : International Forum of Researchers and Lecturers

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59581/konstanta.v3i3.5481

Abstract

Mandai is a traditional fermented food made from the inner skin of the cempedak fruit (Artocarpus champeden) and is widely known in South Kalimantan. Its distinctive sour taste is a result of microbial activity during the natural fermentation process. This study highlights the important role of lactic acid bacteria (LAB) as the dominant agents in Mandai fermentation. The main objective of this research is to isolate and characterize LAB from fermented Mandai samples. The methods used in this study include serial dilution, inoculation on Nutrient Agar (NA) media, incubation at room temperature, colony morphology observation, and Gram staining using crystal violet. The results showed the presence of round colonies with a creamy white color and smooth surfaces, which indicate the characteristics of lactic acid bacteria. Most of the isolates showed Gram-positive properties, supporting their identification as lactic acid bacteria. This research not only enriches our understanding of the microbial ecology in Mandai fermentation but also opens up opportunities for utilizing LAB as a natural preservative or functional probiotic in both traditional and modern food products. The presence of LAB in Mandai fermentation suggests the potential to enhance the quality and health benefits of this traditional food, making it a viable source of probiotics beneficial for digestive health. Additionally, the use of LAB in Mandai processing could increase the appeal of this product in broader markets, both locally and internationally. Overall, this study provides a solid foundation for further development in utilizing microbes in traditional food fermentations. Moreover, it opens opportunities to improve the quality and sustainability of Mandai products while raising awareness about the importance of fermentation in enhancing the nutritional value and health benefits of traditional food products.
Pengujian Mikroba pada Belut Kering (Kepanjang) Berdasarkan Pengaruh Lama Penyimpanan dan Suhu Lingkungan terhadap Kontaminasi Mikroba Okti Sonya Rahmadani; Ardi Mustakim
Konstanta : Jurnal Matematika dan Ilmu Pengetahuan Alam Vol. 3 No. 3 (2025): September : Jurnal Matematika dan Ilmu Pengelatuan Alam
Publisher : International Forum of Researchers and Lecturers

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59581/konstanta.v3i3.5482

Abstract

Dried eel (kepanjang) is a traditional food product made through the drying process to extend shelf life and facilitate distribution. While drying can slow down product deterioration, it still carries the risk of microbial contamination, especially when stored at room temperature without additional preservation. This study aims to provide information regarding the microbiological safety of dried eel products during storage and to determine the effects of storage duration and environmental temperature on microbial growth in dried eel. The method used in this study involved direct observation of microbial colony growth through serial dilution and inoculation on Nutrient Agar (NA) media, which was then incubated at room temperature. The microbial colonies growing on the dried eel samples were observed and counted to assess the impact of storage duration and temperature on microbial contamination. The results showed that the longer the storage time and the higher the environmental temperature, the greater the number of microbial colonies that grew. This indicates that storage conditions, both in terms of duration and temperature, have a significant impact on the level of microbial contamination in dried eel. This research reveals the importance of strict monitoring of temperature and storage duration for dried eel products. The increase in microbial colonies as storage time and temperature rise indicates that the product becomes more susceptible to contamination and spoilage. Therefore, to maintain product quality and safety, proper storage systems need to be implemented, such as using additional preservatives or storing the product at low temperatures. By adopting these measures, the risk of microbial contamination can be minimized, which will extend the shelf life and maintain the quality of the dried eel product. This study provides valuable insights into the microbiological aspects of traditional food products, specifically dried eel, which can be applied to ensure their safety during storage.
Isolasi dan Identifikasi Bakteri Asam Laktat dari Bekasam Ikan Nilem (Osteochilus hasselti) sebagai Produk Fermentasi Lokal Muaro Jambi Tiara Nabilah Putri; Ardi Mustakim
Konstanta : Jurnal Matematika dan Ilmu Pengetahuan Alam Vol. 3 No. 3 (2025): September : Jurnal Matematika dan Ilmu Pengelatuan Alam
Publisher : International Forum of Researchers and Lecturers

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59581/konstanta.v3i3.5537

Abstract

This study was conducted to isolate and identify lactic acid bacteria (LAB) present in nilem fish bekasam, a traditional fermented product from Muaro Jambi. A 1-gram sample of bekasam, which had been fermented for 7 days, was used as the test material. The sample was diluted in stages to 10⁻⁶ and then plated on Nutrient Agar medium using the pour plate method. The incubation was carried out at 37°C for 24-48 hours. Upon observation, bacterial colonies with characteristics typical of lactic acid bacteria were noted. These colonies were small in size, round in shape, white to cream in color, had smooth surfaces, and flat edges. Gram staining tests revealed that most isolates were Gram-positive bacteria with rod or oval shapes, which is consistent with the characteristics of the Lactobacillus genus. Further tests showed that these bacteria were catalase-negative, non-spore-forming, and produced lactic acid as their primary metabolic product. These findings suggest that lactic acid bacteria, particularly the Lactobacillus species, dominate the microbial population in the fermentation process of nilem fish bekasam. The study highlights the significant role of LAB, especially Lactobacillus, in the fermentation process, contributing to the unique flavors, texture, and preservation properties of this traditional fermented product. This research emphasizes the importance of LAB in traditional food fermentation processes.
Mekanisme Interaksi Sel dan Patogen: Perspektif Biologi Seluler Purnomo, Khalim; Mustakim, Ardi
Innovative: Journal Of Social Science Research Vol. 5 No. 4 (2025): Innovative: Journal Of Social Science Research
Publisher : Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/innovative.v5i4.20612

Abstract

Penelitian ini mengkaji mekanisme interaksi antara sel inang dan patogen dari perspektif biologi seluler, dengan fokus pada bagaimana patogen memanipulasi proses-proses seluler seperti autofagi, fagositosis, jalur sinyal, dan eksositosis untuk meningkatkan kelangsungan hidup dan replikasinya. Melalui analisis literatur sistematis, penelitian ini menemukan bahwa patogen intraseluler, seperti Salmonella dan virus dengue, memiliki strategi canggih untuk menghindari deteksi oleh sistem imun dan mengubah fungsi sel inang menjadi keuntungan bagi mereka. Temuan ini menyoroti pentingnya pemahaman mendalam tentang interaksi molekuler dalam pengembangan terapi baru yang lebih efektif dan spesifik, serta memberikan wawasan tentang potensi target terapeutik dalam penanganan infeksi.
Co-Authors Afifatur Rizqiah Afreni Hamidah Agistha Dwi Lestari Airin Nurfaiza Aisha Noviadianty Anattri, Lega Andini Anggun Sarttika Erinza Annisa Tuzzahra Arfina, Nabila Arifa, Rifka Fadhlina Arum Dwi Arimbi Astari, Milla Aulia Ramadhani Azzahra, Syasya Bambang Hariyadi Citra Bunga Lestari Dea Lestari Dea Miranda Saputri Dian Novita Dina Oktalia Putri Dini Anjani Evelyn Luna Anggraini Fathiya Rizki Aninda Felisha Putri Maida Fhariza Liandri Chardy Ilham Falani Indah Maisyarah Buliani Indri Artanti Intan Hapsari Isnaini Yulia Lestari Kayla Khairatifah Zalianti Keila Ramadhani Khalim Purnomo Khusnul Khotimah Rijie Latifatus Zahroh Leviona Dhina Safira Lilik Hevinovisa Lisa Fitriana Luciana Bunga Sari Lulu Wafiq Wafizo Marsya Marsya Marvina Marvina Maura Maharani Mayla Fasha Azla Milla Astari Mulyadi, Elvaro Islami Muthiya Amalia Nailla Indayani Sumardi Nanik Apriyanti Nasanda, Fika Nasanda, Shafitri, Fika Nawra Nurvidilla Nayla Azzahrah Nayla Fazilla Nadin Nazwa Nayla Putri Nindy Adisha Puti Hanumsari Nirmala Nirmala, Nirmala Ni’matullathifah Ni’matullathifah Ni’matullathifah Novita Maharani Nyimas Fatiyah Aini Oktalia Putri, Dina Okti Sonya Rahmadani Purnomo, Khalim Putri Rahmadani Putri, Dina Oktalia Queenara Yulianingtyas, Mutia Ratu Zara Rezky Maulidiya Rifky Rifaldo Munthe Sabnatun Nikmah Saffana Aura Balqis Salsabila Rahman Setiana Safitri Shafitri Shafitri Shafitri, Shafitri Siti Dwi Cahira Sri Nanda Suci Fabilla Suci Tri Ramadhani Tamimil Hasanah Tassa Tassa Tata Anggraini Teuku Daffa Hasian Tiara Nabila Putri Tiara Nabilah Putri Yulianingtyas, Mutia Queenara Zaskia Rahmawati Zinda Rizkia Aprilia