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Journal : Indobiosains

Optimasi Pertumbuhan Bakteri Laut Penghasil Protease Menggunakan Variasi Konsentrasi Media Skim Milk Modifikasi Anita, Anita; Natsir, Hasnah; Ahmad, Ahyar; Taba, Paulina; Karim, Harningsih
Indobiosains 2025: Volume 7 Nomor 1 Februari 2025
Publisher : Universitas PGRI Palembang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31851/indobiosains.v7i1.17822

Abstract

This study aims to analyze the growth rate of marine bacteria producing protease using variations in the concentration of skim milk media and to observe the relationship between cell growth and enzyme activity. The study was conducted using three concentrations of skim milk media (1%, 2%, and 3%) and observation of growth and enzyme activity for 108 hours. The results showed that 1% skim milk concentration produced the largest proteolytic zone diameter (13.8 mm) with the fastest growth (1 day). Observations of cell growth patterns and enzyme activity showed that the highest enzyme activity (0.5933 U/mL) occurred in the early growth phase and decreased in subsequent phases even though cell growth increased. This indicates that there is no linear relationship between cell growth and enzyme activity in marine bacteria-producing protease, where enzyme production and activity are influenced by various complex factors such as physiological conditions of the cells and nutrient availability.
Co-Authors Abdul Karim Abdul Rauf Patong Abubakar, Andi Nur Fitriani Ade Rifka Junita Ahmad Fudhail  Majid Ajuk Sapar Alfian Noor Ali Muhakim Andi Erwin Eka Putra Andi Evi Erviani Anita Anita Anita Anita Ardita R, Dian Fitrah Arfah, Rugaiyah Arfah, Rugaiyah A. Arfah, Rugaiyah Andi Arfiani Nur Aslinda, Wery Asmuddin Nasir Asmuddin Natsir Azis, Fitria Baharuddin Patandjengi Brugman, Irene BUDI SAKSONO Burhanuddin Bahar Burhanuddinnur, Muhammad Cut Muthiadin Deni Zulfiana dwyana, Zarsawaty Ermawar, Riksfardini A. Eva Johannes Fadliah, Fadliah Febryanti, Amalyah Firdaus Firdaus Firdaus Hamid Fitria Aziz Gita Gita Hafsan, Hafsan Hanapi Usman Harningsih Karim Harningsih Karim Hasnah Natsir Hasnah Natsir Herlina Rasyid Husnul Khotimah Indah Raya Indah Raya Irfandi, Rizal Irmawati Isna Rasdianah Aziz Kasturiasih, Ni Putu Khairunnur, Siti Laily Agustina Laily Agustina, Laily M. Sabir Maming Gaffar, Maming Mashuri Masri Maslan, Muhammad Maswati Baharuddin Miftahul Jannah Mochammad Hatta Muh. Nur Alam Muh. Yusri Karim Muhammad Nadir Muhammad Reza Primaguna Muhammad Zakir Munadi, Rachmin Negara, Satria Putra Jaya Nunuk H. Soekamto Nunuk Hariani Soekamto Nur Asmi Nur Indah Purnamasari Nur Umriani Nurfadini, Nurfadini Nurhikmah Nurhikmah Nurjannah Nurjannah Nurmujahidin, Nurmujahidin Paulina Taba Putri, Tri Widayati Ramadani, Ananda Ramli, Siti R. Ressy Dwiyanti Ridwan, Irham Pratama Riksfardini Annisa ERMAWAR Risdianto, I Wayan Riska Mardiyanti Rosdiana Natzir Rugaiyah A. Arfah Sappewali, Sappewali Sarlan, Sarlan Sita Heris Anita SITI HALIMAH LAREKENG, SITI HALIMAH Sri Wahyuni Sukmawaty, Eka Sulistiani Jarre Suriati Eka Putri Syamsurya, Syamsurya Tutik Kuswinanti USMAN - Usman Usman Wahyudin Rauf Yasser, M Yuniar Harviyanti Yunita, Vivi Alfi Yusafir Hala Zainuddin, Rahmaniah