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Deteksi dan Kuantifikasi Cemaran Babi pada Sampel Olahan Daging Menggunakan Real-time PCR Seagames Waluyo; Jekmal Malau; Muhareva Raekiansyah; Edwin Yulian; Imam Hardiman
Al-Kauniyah: Jurnal Biologi Vol 16, No 1 (2023): AL-KAUNIYAH JURNAL BIOLOGI
Publisher : Department of Biology, Faculty of Science and Technology, Syarif Hidayatullah State Islami

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15408/kauniyah.v16i1.20203

AbstrakMetode pengujian cemaran babi menjadi faktor penting dalam sertifikasi produk halal. Metode yang cepat dan robust diperlukan untuk deteksi dan kuantifikasi cemaran babi. Metode Real-time PCR atau dikenal dengan istilah quantitative PCR (qPCR) merupakan metode alternatif untuk deteksi dan kuantifikasi cemaran babi berdasarkan residu keberadaan DNAnya pada sampel olahan pangan. Metode ekstraksi DNA dan kit amplifikasi yang tahan terhadap inhibitor menjadi kunci keberhasilan penggunaan qPCR untuk pendeteksian dan kuantifikasi cemaran babi. Pendeteksian cemaran DNA dengan probe qPCR digunakan karena mempunyai kelebihan tahan terhadap inhibitor, cepat, spesifik, dan multipel target. Penelitian ini bertujuan untuk mendeteksi dan menguantifikasi cemaran DNA babi menggunakan metode ekstraksi DNA secara cepat dan qPCR. Tahapan penelitian ini adalah ekstraksi DNA, amplifikasi, deteksi, dan kuantifikasi DNA babi. Sampel berasal dari produk olahan pangan, seperti bakso, sosis, daging burger, siomay, kuah daging, dan daging isi roti. Hasil penelitian menunjukkan bahwa terdapat cemaran babi pada sampel bakso, daging burger, dan kuah bakso. Hasil yang didapatkan menunjukkan bakso memiliki persentase kontaminasi sejumlah 25%, sedangkan kuah daging sejumlah 12,5%. Hasil penelitian ini dapat direkomendasikan untuk laboratorium penguji makanan sebagai metode deteksi cemaran babi dalam produk pangan secara cepat dan akurat.AbstractPork contamination testing method is an important factor in halal product certification. A fast and robust method is needed for the detection and quantification of pig contamination. Real-time PCR method or commonly known as quantitative PCR (qPCR) is an alternative method for the detection and quantification of pork contamination based on the pig’s DNA residual presence in processed food samples. DNA extraction method and inhibitor-resistant amplification kit are the keys of successful qPCR implementation for the detection and quantification of pig contamination. Detection of DNA contamination with qPCR probe is used because it has some advantages, such as resistant to inhibitors, fast, specific, and multiple targets. This research aimed to detect and quantify pig’s DNA contamination using rapid DNA extraction method and qPCR. The stages of this research were pig’s DNA extraction, amplification, detection, and quantification. The samples taken from processed food products, such as meatballs, sausage, burgers’ meat, dumplings, meat broth, and meat filled in the bread. The results showed that there was pork contamination in the samples of meatballs, burgers’ meat, and meat broth. The results showed that the meatballs had a contamination percentage of 25%, while the meat broth had a contamination percentage of 12.5%. The results of this study can be a recommendation for food testing laboratories as a method of detecting the pork contamination in food products quickly and accurately.

Deteksi dan Kuantifikasi Cemaran Babi pada Sampel Olahan Daging Menggunakan Real-time PCR Seagames Waluyo; Jekmal Malau; Muhareva Raekiansyah; Edwin Yulian; Imam Hardiman
Al-Kauniyah: Jurnal Biologi Vol 16, No 1 (2023): AL-KAUNIYAH JURNAL BIOLOGI
Publisher : Department of Biology, Faculty of Science and Technology, Syarif Hidayatullah State Islami

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15408/kauniyah.v16i1.20203

AbstrakMetode pengujian cemaran babi menjadi faktor penting dalam sertifikasi produk halal. Metode yang cepat dan robust diperlukan untuk deteksi dan kuantifikasi cemaran babi. Metode Real-time PCR atau dikenal dengan istilah quantitative PCR (qPCR) merupakan metode alternatif untuk deteksi dan kuantifikasi cemaran babi berdasarkan residu keberadaan DNAnya pada sampel olahan pangan. Metode ekstraksi DNA dan kit amplifikasi yang tahan terhadap inhibitor menjadi kunci keberhasilan penggunaan qPCR untuk pendeteksian dan kuantifikasi cemaran babi. Pendeteksian cemaran DNA dengan probe qPCR digunakan karena mempunyai kelebihan tahan terhadap inhibitor, cepat, spesifik, dan multipel target. Penelitian ini bertujuan untuk mendeteksi dan menguantifikasi cemaran DNA babi menggunakan metode ekstraksi DNA secara cepat dan qPCR. Tahapan penelitian ini adalah ekstraksi DNA, amplifikasi, deteksi, dan kuantifikasi DNA babi. Sampel berasal dari produk olahan pangan, seperti bakso, sosis, daging burger, siomay, kuah daging, dan daging isi roti. Hasil penelitian menunjukkan bahwa terdapat cemaran babi pada sampel bakso, daging burger, dan kuah bakso. Hasil yang didapatkan menunjukkan bakso memiliki persentase kontaminasi sejumlah 25%, sedangkan kuah daging sejumlah 12,5%. Hasil penelitian ini dapat direkomendasikan untuk laboratorium penguji makanan sebagai metode deteksi cemaran babi dalam produk pangan secara cepat dan akurat.AbstractPork contamination testing method is an important factor in halal product certification. A fast and robust method is needed for the detection and quantification of pig contamination. Real-time PCR method or commonly known as quantitative PCR (qPCR) is an alternative method for the detection and quantification of pork contamination based on the pig’s DNA residual presence in processed food samples. DNA extraction method and inhibitor-resistant amplification kit are the keys of successful qPCR implementation for the detection and quantification of pig contamination. Detection of DNA contamination with qPCR probe is used because it has some advantages, such as resistant to inhibitors, fast, specific, and multiple targets. This research aimed to detect and quantify pig’s DNA contamination using rapid DNA extraction method and qPCR. The stages of this research were pig’s DNA extraction, amplification, detection, and quantification. The samples taken from processed food products, such as meatballs, sausage, burgers’ meat, dumplings, meat broth, and meat filled in the bread. The results showed that there was pork contamination in the samples of meatballs, burgers’ meat, and meat broth. The results showed that the meatballs had a contamination percentage of 25%, while the meat broth had a contamination percentage of 12.5%. The results of this study can be a recommendation for food testing laboratories as a method of detecting the pork contamination in food products quickly and accurately.

Pengaruh Variasi Gen CYP2D6 Terhadap Terapi Tamoxifen Pada Pasien Kanker Payudara di Kawasan Asia Septi, Annisa Frastica; Zahra, Aliya Azkia; Malau, Jekmal
Jurnal Kesehatan Vol 13 No 1 (2024): Jurnal Kesehatan
Publisher : STIKES Ngesti Waluyo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46815/jk.v13i1.251

reast cancer is one of the most prevalent cancers in society, especially among women. Tamoxifen is often used as a first-line therapy for breast cancer and reduces the risk of recurrence in ER+ breast cancer. However, the response to treatment varies due to genetic variability resulting from polymorphisms in the DNA encoding drug-metabolism enzymes, including the CYP2D6 gene. This literature review aimed to evaluate the impact of CYP2D6 gene variants on the effectiveness of tamoxifen in breast cancer treatment. A literature search was conducted through PubMed, Google Scholar, and BMC Cancer using relevant keywords. The selected articles were no more than ten years old (2014-2024), with criteria for inclusion and exclusion. The review of articles from various research journals found that in the Asian region, the CYP2D6 gene variant allele *10 was most frequently seen, resulting in Intermediate Metabolism (IM) in tamoxifen therapy. Patients with IM metabolism tend to have suboptimal therapeutic responses and require tamoxifen dose adjustments.Conversely, patients with Normal Metabolism (NM/EM) tend to have better therapeutic responses. Genetic variability in the CYP2D6 gene affects the activity of the CYP2D6 enzyme, which functions to convert tamoxifen into its active form, Endoxifen. Some individuals may have low (Poor Metabolizer), Intermediate (Intermediate Metabolizer), Normal (Extensive Metabolizer), or even high (Ultra-rapid Metabolizer) enzyme activity. Therefore, adjusting tamoxifen therapy based on patient genetic information is essential for optimal treatment, especially in Asia, where the CYP2D6 gene variant allele *10 is most commonly found, resulting in IM metabolism

The Influence of CYP2C19 Gene Polymorphism on Selective Serotonin Reuptake Inhibitors In Patients with Major Depressive Disorder: A Pharmacogenetic Prospecting Approach Urbaningrum, Lestari Mahardika; Hermosaningtyas, Anastasia Aliesa; Kasasiah, Ahsanal; Rahmasari, Ratika; Raekiansyah, Muhareva; Hartanto, Adrian; Malau, Jekmal
Journal of Biomedicine and Translational Research Vol 10, No 1 (2024): April 2024
Publisher : Faculty of Medicine, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jbtr.v10i1.20338

Major Depressive Disorder (MDD) is a chronic disorder characterized by at least a two-week-long major depressive episode. Selective Serotonin Reuptake Inhibitors (SSRIs) remain the primary prescribed antidepressants to treat MDD. However, SSRIs themselves are found to be ineffective in some individuals or may even lead to adverse side effects. These variable responses have been linked to the drug being metabolized by CYP2C19, which exhibited various polymorphisms. Understanding how gene polymorphism affects drug metabolism is essential since these insights can revolutionize clinical practice, allowing for more precise and personalized treatment approaches that optimize efficacy while minimizing side effects. This issue is particularly pertinent in Indonesia, where research in this area lags behind the pressing need for such studies. In this review, the impact of CYP2C19 polymorphism on the effectiveness of SSRI class drugs, namely citalopram, escitalopram, and sertraline, are explored. Nine relevant articles related to the topic have been studied in Japan, China, Turkey, Russia, Scandinavia, and Australia. The results concluded that CYP2C19 polymorphism can influence the metabolism of SSRIs (citalopram, escitalopram, and sertraline) due to its variability in enzyme activities, which includes both loss-of-function (*2, *3) and gain-of-function (*17) polymorphisms. Consequently, these genetic variations can lead to significant changes in drug efficacy and safety changes within individual patients. This review sheds light on the importance of considering genetic factors when prescribing SSRIs for MDD in the future treatment strategies.

Formulasi dan Uji Antikoksidan Pada Sediaan Lip Balm Dari Ekstrak Kulit Buah Apel Fuji (Malus Domestica (Suckow) Borkh) Abbas, Zuyyinna Alya; Zahra, Aliya Azkia; Malau, Jekmal
JURNAL PERTANIAN Vol 15, No 3 (2024): Jurnal Ilmiah Respati
Publisher : Universitas Respati Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52643/jir.v15i3.4417

Lip balm adalah kosmetik serbaguna yang menawarkan perlindungan dan hidrasi pada bibir, sekaligus meningkatkan kesehatannya secara keseluruhan. Kulit apel Fuji mengandung berbagai macam fitokimia, seperti antioksidan seperti phloridzin, asam klorogenat, katekin, dan quercetin. Quercetin memainkan peran penting dalam meningkatkan kadar antioksidan dan mengurangi kemungkinan berbagai penyakit. Penelitian ini menyelidiki apakah kulit apel dapat digunakan untuk membuat pelembab bibir antioksidan dengan khasiat yang diinginkan dan iritasi yang minimal. Bahan-bahan yang digunakan untuk membuat lip balm kulit apel Fuji termasuk minyak kakao, minyak bunga matahari, vaseline album, lilin lebah, gliserin, dan esensi apel. Lip balm mengandung konsentrasi yang berbeda yaitu 1%, 3%, dan 5%. Pemeriksaan sediaan meliputi evaluasi homogenitas, titik leleh, pH, daya sebar, kesukaan, dan iritasi. Formulasi lip balm dengan ekstrak kulit apel fuji telah lulus uji kualitas fisik dan uji iritasi, yang menunjukkan bahwa lip balm tersebut telah memenuhi parameter yang ditentukan. Namun, aktivitas antioksidan bahan tersebut jauh lebih rendah dibandingkan dengan ekstrak kulit apel yang dianggap sebagai antioksidan kuat (26,90 ppm) dan vitamin C yang juga sangat kuat (5,34 ppm). Pada formula 2, ekstrak 1% sebesar 8491,93 ppm, pada formula 3, 3% sebesar 8474,58 ppm, dan pada formula 4, 5% sebesar 8446,44 ppm. Kata kunci: Antioksidan, Kulit Buah Apel Fuji, Lip Balm

Development of a Gelatin-Based Genomic Reference Material for Halal Authentication Using Real-Time PCR Rahma, Anisa Aula; Meilani, Nanda Diva; Sulistiawati; Ainaputri, Aliza Salsabila; Damara, Dandy Satria; Malau, Jekmal
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.2025.10.1.27-42

Indonesia, home to over 270 million people, has the largest Muslim population globally, with approximately 87.18% adhering to Islam, driving significant demand for halal products, particularly in the food and pharmaceutical sectors. Gelatin, commonly used in medicinal capsules, often originates from porcine sources, necessitating precise halal authentication methods. This study presents the development of a novel genomic DNA-based Reference Material (RM) for gelatin, specifically for porcine DNA detection, employing Real-Time Polymerase Chain Reaction (qPCR) techniques. The methodology encompassed in-silico primer design, sample extraction optimization, DNA quality and quantity analysis, linearity assessment, limit of detection (LoD) and quantification (LoQ) determination, and RM characterization. Results indicated that the designed primers could reliably and efficiently detect porcine DNA, with optimal annealing at 58°C and primer concentration at 500 nM, achieving a PCR efficiency of 96.74%. The LoD and LoQ for pork meat samples were determined to be 0.02 pg/uL and 0.004 pg/uL, respectively, while the LoD for porcine gelatin was 0.27 ng/uL. The RMs exhibited robust homogeneity (Sig. 0.052), significant intergroup differences (Sig. 0.000), and low variation (CV 0.96%). Short-term storage at -80°C and -20°C preserved Ct value stability and consistency. Conclusively, this study successfully developed a novel gelatin-based genomic DNA RM for halal authentication, offering a scientifically validated tool that strengthens the halal assurance system, addressing Indonesian consumers’ demand for porcine-free products. These findings hold substantial implications for regulatory authorities, especially in Indonesia, and could inform the development of standardized qPCR RMs for porcine DNA detection in halal compliance testing.

Primer Design of Porcine DNA using Mitochondrial DNA (Cyt b Gene) for Halal Authentication using Polymerase Chain Reaction (PCR) Rohmah, Siti; Irwansyah, Silvana Lestari; Kasasiah, Ahsanal; Malau, Jekmal
Jurnal Sains dan Kesehatan Vol. 7 No. 1 (2025): J. Sains Kes.
Publisher : Fakultas Farmasi, Universitas Mulawarman, Samarinda, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25026/jsk.v7i1.2418

The Muslim community has difficulties in determining the halal status of animal-derived items and their derivatives due to their extensive prevalence. Islamic customers are increasingly becoming more selective and are demanding halal certification for culinary goods. Developing a way to identify porcine DNA in goods is of utmost importance. The Cyt b gene is being used to evaluate swine DNA samples by using primer candidates. The process of generating primers utilizing bioinformatics tools, such as NCBI, MegaXI, Primer3Plus, SnapGene Viewer, and Net Primer websites, is utilized to assess and analyze the effectiveness of laboratory research. The study concluded that the primers effectively amplified pig DNA, but they were unsuccessful in amplifying chicken or beef DNA. After conducting in silico experiments, a total of 7 possible primers were generated. The most advantageous pair of primers was identified, which includes the forward primer 5'-AACATCCGAAATCACACCC-3' and the reverse primer 5'-AGAATGATATTTGTCCTCAGGG-3'. The efficacy of these primers was evaluated in a controlled laboratory environment. Results from the laboratory experiments demonstrate that these particular primers have the ability to amplify the Cyt b gene from the Sus scrofa species at a temperature of 58°C, producing a DNA fragment that is 415 base pairs long. DNA sequencing is essential to verify that the amplified DNA band matches to the Sus scrofa Cyt b gene. Keywords: PCR, Porcine, Primer, Cyt b, Halal

Increasing Understanding of Medicines in the Community Through the Implementation of DAGUSIBU as a Prevention of Antibiotic Resistance in Pasir Jengkol Village, Karawang Regency Zahra, Aliya Azkia; Malau, Jekmal; Kasasiah, Ahsanal; Ratnasari, Devi; Septiani, Dia; Sholih, Mally Ghinan
Jurnal Kreativitas Pengabdian Kepada Masyarakat (PKM) Vol 8, No 5 (2025): Volume 8 No 5 (2025)
Publisher : Universitas Malahayati Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33024/jkpm.v8i5.18936

ABSTRACT Antibiotic resistance occurs when microorganisms become unresponsive to antibiotic treatment, rendering common therapies ineffective against infections. As a result, the infection becomes increasingly challenging to treat, posing a heightened risk of severe disease progression and increasing the risk of spreading the disease. The causes of the emergence of antibiotic resistance include a number of factors, including excessive use of antibiotics from self-medication, to inappropriate disposal of antibiotic drugs. Karawang Regency, a region in West Java which consists of 10 sub-districts and has a population of more than 2.4 million people. Research conducted in Karawang shows the potential for antibiotic resistance based on use and the environment. It is known that the people of Karawang Regency have poor knowledge and perception regarding antibiotic resistance and use, one of which is Pasir Jengkol village. Therefore, it is necessary to increase understanding of medicines among the people of Karawang Regency, including by socializing the DAGUSIBU movement (Dapatkan, Gunakan, Simpan dan Buang Obat) or Proper Use, Storage and Disposal of Medications and its implementation as a measure to prevent antibiotic resistance. The output of this activity is primarily an increase in understanding of public knowledge through questionnaires which are analyzed using statistics. The results obtained were then tested using a statistical test showing a significant influence (Sig 0.002) increase in knowledge through the difference in pre-test and post-test scores. This outreach activity, which provides educational materials on preventing resistance, has positively impacted the Pasir Jengkol community's knowledge. Therefore, this socialization initiative can be replicated in other areas, particularly in Karawang Regency. Keywords: Antibiotic, Drug Resistance, DAGUSIBU, Karawang.

Advancements in Real-Time PCR Technologies: A Comprehensive Review of Probe-Based and Non-Probe-Based Assays for Molecular Diagnostics Malau, Jekmal; Zahro, Aurora Fatimatuz; Zahra, Aliya Azkia; Kasasiah, Ahsanal; Meilani, Nanda Diva; Damara, Dandy Satria; Lestari, Agatha Nabilla; Saryono; Wahyono, Daniel Joko
Science and Technology Indonesia Vol. 10 No. 3 (2025): July
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.2025.10.3.660-677

The decision between probe-based and non-probe-based qPCR assays is crucial, influenced by diagnostic goals and sample characteristics. This review provides an in-depth evaluation of these two assay types, analyzing their principles, strengths, drawbacks, and applications. A thorough review of the literature, primarily sourced from PubMed, was undertaken to explore prominent assay systems, including TaqMan, KASP, rhAmp, HRM, and SYBR Green. Probe-based qPCR assays, exemplified by TaqMan and rhAmp, are distinguished by their high specificity, aptitude for multiplex analysis, and reduced risk of false positives, making them highly suitable for SNP genotyping and pathogen detection. However, their elevated costs and intricate design requirements remain significant challenges. Conversely, non-probe-based assays, such as SYBR Green and HRM, present cost-effective alternatives with straightforward designs. HRM, in particular, is effective in identifying genetic variations like SNPs with remarkable sensitivity. Nonetheless, these methods are susceptible to non-specific amplifications, requiring careful optimization to maintain reliability. The selection of a suitable qPCR assay depends on various factors, including precision, affordability, and multiplexing capabilities, with applications spanning infectious disease detection and genetic disorder analysis. This review emphasizes the indispensable role of qPCR in molecular diagnostics while showcasing recent technological advances that aim to mitigate existing constraints and enhance diagnostic precision and accessibility.

Potensi Aktivitas Antibakteri dan Antioksidan dari Senyawa Bioaktif Bakteri Tanah Asal Samarinda, Kalimantan Timur: The Antibacterial and Antioxidant Potential of Bioactive Metabolites from Soil-Derived Bacteria in Samarinda, East Kalimantan Atwita, Syelziva Yonda; Malau, Jekmal; Permatasari, Vera; Primahana, Gian; Dewijanti, Indah D.; Yuswan, Apriza; Prastya, Muhammad Eka
Jurnal Sumberdaya Hayati Vol. 11 No. 2 (2025): 2025
Publisher : Departemen Biologi, Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jsdh.11.2.63-73

Antibiotic resistance is a global challenge, especially in the treatment of bacterial infections. This study aims to explore the antibacterial and antioxidant potential of bioactive compounds isolated from soil bacteria in Samarinda, East Kalimantan. Of the 30 isolates tested, 1 potential isolate was obtained, namely isolate code T1.16. This potential bacterial isolate was further cultured and fermented in Tryptic Soybean and Luria Bertani Broth medium to obtain its crude secondary metabolite. Interestingly, its crude extract showed antibacterial activity with MIC values of 100.4-3,211 µg/ml against Escherichia coli strain ATCC 8739, Pseudomonas aeruginosa strain ATCC 9027, Bacillus subtilis strain ATCC 6633, and Staphylococcus aureus strain ATCC 25923. Based on 1,1-diphenyl-2-picrylhydrazyl (DPPH) method was used to identify antioxidant activity, IC50 values obtained ranged from 990-1730 µg/ml. Ultimately, by using Gas Chromatography Mass Spectrometry (GC-MS) analysis, bioactive compounds in the form of Cyclo(L-prolyl-L-valine), 2-methylpropyl and phenylmethyl in bacterial extract T1.16 have potential antioxidant and antibacterial bioactivities. These results support the potential development of new antibacterial and antioxidant compounds from soil bacteria, as well as the importance of further exploration for pharmacological applications.

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