Claim Missing Document
Check
Articles

Found 4 Documents
Search
Journal : VALENSI

Pengaruh Jumlah Inokulum Sel Inang Bakteri E.coli BL21 (DE3) pLysS dan Waktu Overekspresi pada Produksi Protein Rekombinan Fim-C Salmonella typhi Muktiningsih Nurjayadi; Izzatul Ilma Chairinnisa; Geta Putri Mentari; Dudi Hardianto; Asri Sulfianti; Kurnia Agustini
Jurnal Kimia Valensi Jurnal Kimia VALENSI Volume 4, No. 2, November 2018
Publisher : Syarif Hidayatullah State Islamic University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (920.016 KB) | DOI: 10.15408/jkv.v4i2.8077

Abstract

Recombinant protein Fim-C S.typhi is a potential protein that can be used as an alternative typhoid vaccine and produced on a large scale. However, before entering into a large-scale stage, laboratory optimum data on the factors that affect the production process of Fim-C Salmonella typhi proteins are required. This study aims to obtain information regarding the effect of host cell number E.coli BL21 (DE3) pLysS and overexpression time on production of recombinant protein Fim-C Salmonella typhi as the basis for developing candidate of typhoid vaccine. The optimization process of overexpression was done by adding 0.5 mM IPTG (Isopropyl-β-D-thiogalactopyranoside) inducer into bacterial cultures of 2%, 4%, and 6% with 4, 5, and 6 hours over expression. The measurement of the concentration of Fim-C recombinant protein extracted samples were done by a spectrophotometric method used BCA Kit Assay Thermo ScientificTM with wavelength 590nm. The characterization of those protein extracts was performed using SDS-PAGE method. The results from the study concluded that the number of 4% E.coli bacterial cells and four-hour overexpression time are the optimum condition of Fim- C Salmonella typhi characterized by the presence of high-intensity bands at ± 31 kDa.  
Garciniaxanthone E and 12b-Hydroxy-des-D-garcigerrin A from The Tree Bark Garcinia dulcis and their Inhibitory Properties against Receptor Tyrosine Kinases Kurniadewi, Fera; Aqilah, Amadita Shafa; Kartika, Irma Ratna; Nurjayadi, Muktiningsih; Hermawati, Elvira; Danova, Ade
Jurnal Kimia Valensi Jurnal Kimia VALENSI, Volume 10, No. 1, May 2024
Publisher : Syarif Hidayatullah State Islamic University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15408/jkv.v10i1.38159

Abstract

Two xanthone derivatives, garciniaxanthone E (1) and 12b-Hydroxy-des-D-garcigerrin A (2) have been isolated from ethyl acetate extract of the tree bark of Garcinia dulcis. The Ultraviolet (UV), Infrared (IR), Nuclear Magnetic Resonance (NMR), and Mass Spectrometry (MS) data analysis elucidated the structure of the isolated compounds. This study represents the first evaluation of compounds 1 and 2 in terms of their efficacy against receptor tyrosine kinases. The results showed that compound 1 exhibited weak activity with 12% inhibition against Insulin Receptor (InsR), while compound 2 showed moderate activity with 29% inhibition against epidermal growth factor receptor (EGFR). A molecular docking study targeting EGFR-TK suggests that the hydroxyl group at C-4 on compound 2 can be demolished to raise the inhibitory activity in future research.
Efficacy Test of Prototype Kit for Detection Bacillus cereus and Listeria monocytogenes in Processed Meat using Real-time PCR Method Nurjayadi, Muktiningsih; Fahriza, Tiara; Putri, Adinda Myra Amalia; Rahmawati, Atikah Nur; Berkahingrum, Ayu; Anggraeni, Rosita Gio; Putri, Gladys Indira; Declan, Jefferson Lynford; Akbar, Dandy; Maulana, Irvan; Azzahra, Maharanianska; Shangkara, Muhammad Arkent; Kartika, Irma Ratna; Kurniadewi, Fera; Sukmawati, Dalia; Rahayu, Sri; Saamia, Vira; Wiranatha, I Made; Abumoelak, Bassam; El Enshasy, Hesham
Jurnal Kimia Valensi Jurnal Kimia VALENSI, Volume 11, No. 1, May 2025
Publisher : Department of Chemistry, Faculty of Science and Technology Syarif Hidayatullah Jakarta State Islamic University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15408/jkv.v11i1.44280

Abstract

According to the World Health Organization (WHO), harmful agents such as Bacillus cereus and Listeria monocytogenes are responsible for 600 million cases of disease and 420,000 deaths annually. This research aims to test the effectiveness of the real-time PCR method for developing a prototype kit to detect pathogenic bacteria in processed meat. As a comparison, the and conventional PCR methods were used to obtain the accuracy, specificity, sensitivity, and effectiveness of the real-time PCR method. All the samples were cultured in solid media agar, performed amplification using specific primers cyt-K 2 and hly using PCR and real-time PCR. Meatballs, nuggets, and sausages, five samples each, were found to be positive positively contaminated with all targeted bacteria. However, they did not provide specific results using solid media culture and the PCR method. In addition, the real-time PCR method using prototype kit formulas accomplished that all contaminated samples had a Ct value smaller than the negative control, NTC (No Template Control), and had a similar melting curve to the positive control. This establishes that the real-time PCR method clarifies that all samples were contaminated with target bacteria. A formula was developed in the prototype kit with real-time PCR methods that can be used and applied on a commercial scale efficiently and precisely.
Garciniaxanthone E and 12b-Hydroxy-des-D-garcigerrin A from The Tree Bark Garcinia dulcis and their Inhibitory Properties against Receptor Tyrosine Kinases Kurniadewi, Fera; Aqilah, Amadita Shafa; Kartika, Irma Ratna; Nurjayadi, Muktiningsih; Hermawati, Elvira; Danova, Ade
Jurnal Kimia Valensi Jurnal Kimia VALENSI, Volume 10, No. 1, May 2024
Publisher : Department of Chemistry, Faculty of Science and Technology Syarif Hidayatullah Jakarta State Islamic University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15408/jkv.v10i1.38159

Abstract

Two xanthone derivatives, garciniaxanthone E (1) and 12b-Hydroxy-des-D-garcigerrin A (2) have been isolated from ethyl acetate extract of the tree bark of Garcinia dulcis. The Ultraviolet (UV), Infrared (IR), Nuclear Magnetic Resonance (NMR), and Mass Spectrometry (MS) data analysis elucidated the structure of the isolated compounds. This study represents the first evaluation of compounds 1 and 2 in terms of their efficacy against receptor tyrosine kinases. The results showed that compound 1 exhibited weak activity with 12% inhibition against Insulin Receptor (InsR), while compound 2 showed moderate activity with 29% inhibition against epidermal growth factor receptor (EGFR). A molecular docking study targeting EGFR-TK suggests that the hydroxyl group at C-4 on compound 2 can be demolished to raise the inhibitory activity in future research.
Co-Authors Abdul Hakam Barok Aboemolak, Bassam Abomoelak, Bassam Abumoelak, Bassam Achmad Ridwan Achmad Ridwan, Achmad Ade Danova Adinda Myra Amalia Putri Adinda Myra Amalia Putri Agung Purwanto Agus Setiawan AGUS SETIAWAN Ahmad Yudianto Aina Q Marof Akbar, Dandy Alin Mardiah Aliyah, Elvira Zulfah Amalia, Ira Nur Ananda Indah Putri Sihombing Andika, Andika Prasetya Angelina, Helzi Anggraeni, Rosita Gio Anisa Fitriyanti Annisa Auliya Annisa Maharani Annisa, Cindy Ermintia Aqilah, Amadita Shafa Arief Rahmad Maulana Akbar Arieztania Rahmadhani Arif Rahman Asri Sulfianti Athiyah Layla Atikah Nur Rahmawati Atin Supiyani Aulia Siti Pathoni Aulia Widowati Axel Mareta Ayu Berkahingrum Azidi Irwan Azizah, Puan Aqila Azzahra, Maharanianska Bassam Abomoelak Bassam Abomoelak Berkahingrum, Ayu Cahyani, Septia Dwi Chen, Shyi-Tien Dahlia Dahlia Dalia Sukmawati Dandy Akbar Juliansyah Dandy Akbar Juliansyah Dandy Akbar Juliansyah Daniel Joe Dailin Danova, Ade Darwis, Darsef Desi Lestari Desi, Desi Handayani Dessy Natalia Devi Aliefiyardi Dian Larasati Diana Vivanti Diat Nurhidayat Dudi Hardianto Dwi Ana Oktaviani El Enshasy, Hesham El-Enshasy, Hesham Ali Elenshasy, Hesham Ali Elsa Septiani Enshasy, Hesham Ali El Erdawati Ezzaty NM Razif Fahriza, Tiara Farid Agouillal Fathya Putri Fajriani Fatmawati, Tri Kurnia Fera Kurnia Dewi Fera Kurnia Dewi Fera Kurnia Dewi Fera Kurniadewi Fera Kurniadewi Fera Kurniadewi Fernita Puspasari Fitri W Fitriyanti, Anisa Furqoni, Abdul Hadi Geta Putri Mentari Giri Alviyanto Gladys Indira Putri Gladys Indira Putri Gladys Indira Putri Grace Grace, Grace Gusti Angieta Putri Hairishah, Nazrisya Helzi Angelina Hermawati, Elvira Hesham A. El Enshasy Hesham Ali Al-Enshashy Hesham Ali El Enshasy Hesham Ali El-Enshasy I Made Wiranatha I Made Wiranatha I Nyoman Ruja IMAM SANTOSO Imanuelle Orchidea R P Irma Ratna Kartika Irvan Maulana Irvan Maulana Irwan Saputra Isfasona Bunga Falana Ismaya Krisdawati Ismaya Krisdawati Ismaya Krisdawati Izzatul Ilma Chairinnisa Jefferson Lynford Declan Johanes Erwin Tantaruna Juliansyah, Dandy Akbar Kartika, Irma Ratna Kinanti Istantia Chantika Krisdawati, Ismaya Kurnia Agustini Kurnia Agustini Kurniadewi, Fera Lanasari, Rossy Lilis Septyarini Lim J. R Listya Ayu Saraswati Maharani Azka Azzahra Maharanianska Azzahra Maria Paristiowati Masturdin, Masturdin Maulana, Irvan Mellyna Fitriani Musie, Royna Rahma Nabilla Anisa Putrie Nasywa Fhelia Salta Nida Nur Afifah Nita Aresanti Novi Permanasari Novi Wulandari Novianti Mantasha NOVITASARI Novitasari Novitasari Nurhayati Muslimah Nurullaili Malanul Hikmah Oni Soesanto Soesanto Pardiana Permatasari, Nur Azmi Priyani, Valda Tsabitha Puan Aqila Azizah Putri Novitasari Putri, Adinda Myra Amalia Putri, Gladys Indira Putri, Gusti Angieta Putri, Nabilah Mustika Raden Haryo Bimo Setiarto Rahma, Wanda Amelia Rahmat Yunus Yunus Rahmawati, Atikah Nur Raihanah, Dinnah Ramadhan, Fitri Nur Rara Seruni Rara Seruni Retno Dwi Cahayningrum Rheva Amadea Rina Agustina Ririn Gustini Rizkahana Syehfia Rizki Fitria Roshanida A. Rahman Rosi Nurhujaimah Rosita Gio Anggraeni Royna Rahma Musie S, Restu.N S Saamia, Vira Saamia4, Vira Salsabila, Nadia Saputro, Dwi Anna Oktaviani Sara E Gomaa Sarah Adilisa Kartini Sari, Ely Puspita Setia Budi Shangkara, Muhammad Arkent Sheila Nurul Fadillah Octaviany Shyi-Tien Chen Sihombing, Ananda Indah Putri Sintia Mardita Siti Azizah Siti Fatimah SITI FATIMAH Siti Munawaoh Siti Munawaroh Siti Namiran Hadis Sondang N. Sihombing Sri Rahayu SRI RAHAYU Sulastri, Sindy Kania Sulistiyani Susilo, Ahmad Dwi Susilo, Tanto Budi Syamsul Bachri Tiara Fahriza Toton Sutono Tri Hastuti Budi Utami Tri Susanti Ucu Cahyana Ulfah Choiriyah Uswatul Nisa Vira Saamia Vira Saamia Vira Saamia Wahyuningtiyas, Kartika Putri Wella, Wella Aulia Putri Wiranatha, I Made Yohana Caroline Sihombing Yohannes Eka Cordias Buulolo Yuli Rahmawati Zahroni, Siti Zarani M Taher Zeral, Lauzer