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All Journal Pendas : Jurnah Ilmiah Pendidikan Dasar Jurnal Pengabdian Magister Pendidikan IPA Keteg : Jurnal Pengetahuan, Pemikiran dan Kajian Tentang Bunyi El Midad : Jurnal Jurusan PGMI Jurnal Riset Intervensi Pendidikan (JRIP) Jurnal SIAR ILMUWAN TANI International Journal of Educational and Life Sciences (IJELS) Jurnal Pendidikan Guru Madrasah Ibtidaiyah Al-Amin Journal of Fisheries & Marine Jurnal Masyarakat
Mukminah
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Religion Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Education Languange, Linguistic, Communication & Media Mathematics Medicine & Pharmacology Nursing Physics Public Health Social Sciences Other

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The Characteristics of Chitosan Derived from Lobster Shells and its Effect on Fungi Activity and Water Stability of Lobster Pellets Ihsan, Muhsinul; Harris, Ali; Mukminah; Megawati; Purwati, Nining; Muliasari, Handa; Priyambodo, Bayu; Jones, Clive; Nankervis, Leo
Jurnal Ilmiah Perikanan dan Kelautan Vol. 17 No. 2 (2025): JURNAL ILMIAH PERIKANAN DAN KELAUTAN
Publisher : Faculty of Fisheries and Marine Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/jipk.v17i2.57474

Abstract

Graphical Abstract   Highlights of Research The chitosan was successfully produced from lobster shells Panulirus homarus. The characteristics and quality of chitosan from lobster shells Panulirus homarus were observed. The anti-fungal activity of chitosan was assessed. Chitosan enhances the water stability of lobster pellets.       Abstract Tropical rock lobster aquaculture is a lucrative industry that is currently limited by the lack of appropriate formulated feed. Its nocturnal, benthic feeding behavior necessitates a water-stable feed that maintains integrity under tropical marine conditions without degrading. Chitosan, a biopolymer derived from lobster (Panulirus homarus) shells, has potential applications in aquaculture as an antifungal agent and feed binder. We report on the characteristics of chitosan extracted from the exoskeleton of spiny lobsters (Panulirus homarus), including its effect on fungal activity and water stability of pellets. Chitosan was produced through three main steps: deproteination, demineralization, and deacetylation. The resulting chitosan was characterized through crude composition (AOAC methods), FTIR spectra, and scanning electron microscope (SEM), while antifungal activity was assessed through in vitro assays. Chitosan was used to coat lobster feed pellets by immersion method at different concentrations (0%, 0,5%, 1%, 1,5%, and 2%), and its impact on pellet water stability was assessed. There were three replications in fungal activity and water stability test. The yield of chitosan was 5.9 ± 0.01% of the total shell mass, with 96.99% ± 0.01 degree of deacetylation (DD). The resulting product contained 5.94 ± 0.07% moisture, 36.72 ± 0.05% ash and 2.73 ± 0.08% nitrogen. Chitosan morphology was characterized as an irregular shape with dimensions ranging from 157 to 391 µm, with a combination of striated surface textures. Increasing concentration of chitosan increased water stability of pellets up to 1.5% inclusion, while 0.5% optimized Fusarium sp. inhibition. These findings suggest that chitosan from lobster shells can be sustainably utilized to enhance feed quality, reducing fungal contamination and nutrient leaching in aquaculture systems.
The Role of Brand Image on Repurchase Intention of Le Minerale Mediated by Brand Equity in Semarang Mukminah; Imam Nuryanto
International Journal of Educational and Life Sciences Vol. 2 No. 11 (2024): November 2024
Publisher : MultiTech Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59890/ijels.v2i11.2703

Abstract

This study aims to analyze the influence of brand image on repurchase intention of Le Minerale products in Semarang, emphasizing the role of brand equity as a mediator. Using quantitative analysis methods and Smart PLS, the results of the study show that brand image has a positive and significant influence on repurchase intentions. In addition, brand equity was shown to serve as a significant mediator in the relationship between brand image and repurchase intention. These findings confirm that strengthening brand image not only directly affects repurchase intentions but also through increasing brand equity. This research provides important insights for companies in formulating effective marketing strategies to increase product repurchase intentions.
Pengenalan risiko tinggi kehamilan pada ibu hamil di Pustu Kelompang Gresik Yonni Siwi, Retno Palupi; Erma Retnaningtyas; Anggrawati Wulandari; Asruria Sani Fajriah; Nining Istighosah; Candra Wahyuni; Hairiya Yuliani Rahman; Mitha Yulia; Badratul Ain; Hafikaini; Mukminah; Hidayatul Fitriya; Anisatul Mufida; Sofia Indah Agustina
Link Jurnal Masyarakat Vol 2 No 2 (2025): December : Jurnal Masyarakat
Publisher : CV LINK Education Publication

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.63425/ljm.v2i1.114

Abstract

Pendahuluan: Kehamilan risiko tinggi meningkatkan terjadinya bayi lahir premature, Bayi Berat Lahir Rendah (BBLR), abortus, partus lama, Hemorrhagic Post Partum (HPP), eklamsi atau preeklamsi, Intrauterin Fetal Death (IUFD), dan lain sebagainya bahkan kematian. Upaya peningkatan kesehatan ibu dan anak serta penurunan angka kematian ibu dan angka kematian bayi diperlukan kerja sama oleh berbagai sektor, seperti Antenatal Care terpadu, kelas ibu hamil, kolaborasi dengan ahli gizi, dan dokter kandungan. Tujuan: Optimalisasi pengetahuan ibu hamil tentang kehamilan risiko tinggi. Metode: Pengabdian masyarakat ini dilakukan dengan memberikan edukasi tentang kehamilan risiko tinggi dalam bentuk kuesioner pre-test, pemberian edukasi, dan post-test. Edukasi ini diikuti oleh 20 ibu hamil di Pustu Kelompang Gubug Kecamatan Tambak Kabupaten Gresik kemudian dianalisis menggunakan distribusi frekuensi. Hasil: Pengetahuan ibu hamil saat pretest dalam kategori baik yaitu 4 ibu hamil (20%) dan saat posttest 16 ibu hamil (80%) dengan pengetahuan baik. Kesimpulan: Pengetahuan ibu hamil tentang risiko tinggi kehamilan dapat ditingkatkan dengan seringnya diberikan eduksi. Diharapkan dengan adanya penyuluhan ini ibu hamil dapat mengerti pencegahan, faktor risiko, atau deteksi dini kehamilan risiko tinggi.
Co-Authors Ali Harris, Ali Anisatul Mufida Aziz, Lalu Moh Badratul Ain Baiq Sri Handayani Candra Wahyuni Dewi Puspita Ningsih Fajriah, Asruria Sani Hafikaini Hafiz Salman Al Farisi Haidir Ali Salsabil Hairiya Yuliani Rahman Herjan Haryadi Hidayatul Fitriya Hirlan Ihsan, Muhsinul Imam Nuryanto Jasrodi Jones, Clive Kurniawan, Ramdani Lalu Arifin Aria Bakti Megawati Mitha Yulia Muazzasari, Fitra Muliasari, Handa Nankervis, Leo Nur Asri Shakila Nur Shapna Dwiyanti Nurtikawati Priyambodo, Bayu Purwati, Nining Retnaningtyas, Erma Salniwati Selvia, Siska Ita Siska Ita Selvia Sofia Indah Agustina ST.Nurul Fitriani Suryadmaja, Galih wajah Yolanda Aprilianti Yonni Siwi, Retno Palupi Yuli Rahmawati Zohiro, M Qamaruzzam Alawiyyin Batin