Potensi Lakase Dari Trichoderma Asperellum Lbkurcc1 Dalam Biodegradasi Antibi…

Laccase enzyme (E.C1.10.3.2: oxygen oxidoreductase) is a multi-copper enzyme that catalyzes the oxidation process of various types of organic and inorganic compounds such as mono, di- and polyphenol compounds, aminophenols, methoxyphenols, substituted phenols, diamines, aromatic amines and ascorbic acid. Laccase is an oxidoreductase enzyme produced by various organisms, primarily fungi. This re…

Sintesis Silika Tersulfatasi Untuk Produksi Diesel Melalui Hidroksialkilasi-A…

Silica Catalyst (SiO2) is a heterogeneous catalyst that can be used in producing diesel precursors through hydroxyalkylation-alkylation (HAA) reactions. Silica (SiO2) as a catalyst material has a high surface area, good chemical and thermal stability, but lacks better adsorption capacity and catalytic activity, hence the addition of sulfate groups is necessary. The addition of sulfate functiona…

Uji Potensi Metabolit Sekunder Dari Ekstrak Biji Pepaya Bangkok (Carica Papay…

Carica papaya Linn var. Bangkok adalah tumbuhan genus Carica yang beberapa bagian dari tumbuhan ini antara lain akar, daun, batang, buah, biji buah memiliki manfaat bagi kesehatan tubuh. Biji pepaya diduga memiliki kandungan metabolit sekunder yang berpotensi sebagai senyawa antioksidan dan inhibitor α-amilase, oleh karena itu pada penelitian ini ditentukan kemampuan antioksidan dan inhibitor …

Isolasi Dan Identifikasi Senyawa Alkaloid Dari Batang Monstera Deliciosa Lieb…

Monstera deliciosa Liebm is a tropical plant belonging to the Araceae family which originates from tropical rainforests in Central America. M. Deliciosa contains secondary metabolite compounds such as alkaloids, flavonoids, saponins, steroids and phenolics which have quite good anticancer, antibacterial and antioxidant activity. This research aims to isolate and characterize alkaloid compounds …

Kinerja Biokoagulan Dari Ekstrak Biji Pepaya (Carica Papaya) Untuk Meningkatk…

Papaya seed (Carica papaya) is a plant material derived from the papaya fruit that is not maximally utilised and becomes waste that is not used by the community. Papaya seeds have active components in the form of proteins that can act as coagulant agents. This study aims to prepare, characterise and determine the effectiveness of the effect of particle size and solvent concentration on papaya s…

Sintesis Biodiesel Dari Cpo Menggunakan Katalis Cao-Sio2/Fe2o3 Optimasi Mengg…

The synthesis of biodiesel using a CaO-SiO₂ catalyst derived from blood clam shells (CaO) and palm kernel shell fly ash (SiO₂) has been conducted. The results obtained thus far are not yet optimal, as the surface area and catalytic activity remain low. To enhance the surface area of the catalyst, the addition of metal oxides, such as Fe₂O₃, is necessary. ............................

Sintesis Dan Karakterisasi Katalis Cao-Sio2/Fe2o3 Dan Uji Aktivitas Katalitik…

The CaO-SiO2 catalyst is a type of heterogeneous catalyst widely used in biodiesel production. Modifying the CaO-SiO2 catalyst by adding Fe2O3 can enhance its catalytic activity, surface area, and increase the number of active sites, resulting in a higher biodiesel yield. The aim of this study was to synthesize the CaO-SiO2/Fe2O3 catalyst from blood clam shells, coconut husks, and Fe2O3 powder …

Kinerja Biokoagulan Biji Mangga (Mangifera Indica) Yang Dipreparasi Secara Pe…

The mango seed contains active components, such as proteins, which can act as coagulant agents (biocoagulants). This study aims to prepare, characterize, and evaluate the effectiveness of mango seed as a biocoagulant for the removal of color, turbidity, total suspended solids (TSS), and total dissolved solids (TDS) in peat water. Mango seed biocoagulants were prepared using dry grinding (PK) an…

Sintesis Katalis Cao-Fe2o3dari Cangkang Kerang Darah Dan Serbuk Fe2o3 Untuk P…

Heterogeneous base catalysts are commonly used as substitutes for homogeneous catalysts in the transesterification reaction for biodiesel synthesis, with CaO being a prominent example. CaO can be obtained from blood clam shells through calcination at temperatures above 700℃. However, CaO catalyst has a relatively low surface area, necessitating modifications, such as the addition of Fe2O3, to…

Analisis Cemaran Mikroba Pada Minuman Jajanan Yang Dijual Pedagang Kaki Lima …

Street-vended beverages are drinks prepared and sold by street vendors in crowded public areas, such as markets and streets, intended for immediate consumption without further processing. This study aimed to assess the microbiological safety of street-vended beverages sold by vendors in Pekanbaru City. Samples were collected from seven districts, yielding a total of 16 beverage samples. Microbi…

Optimasi Proses Pembuatan Dan Adsorpsi Carbon Dots Dari Fluff Teh (Camellia S…

Carbon dots from fluff tea are one of the adsorbents that can be used to remove colorants from water. Fluff tea is a waste product from tea processing factories, consisting of whole and broken tea leaves and branches resulting from green tea production. Fluff tea contains amino acids, proteins, cellulose, microelements, tannins, and polyphenols that can be utilized as adsorbents. This research …

Analisis Metabolomik Untuk Mengevaluasi Pengaruh Pengadukan Fermentasi Dan Je…

The potential for discovering new antibiotic alternatives through the exploration of local microbes from Riau as a source of bioactive compounds is significant. However, isolating active compounds using a guided assay approach presents challenges due to the limited amount of extract and the low yield obtained from microbial fermentation. To address these challenges, it is crucial to optimize fe…

Isolasi Dan Uji Aktivitas Antijamur Senyawa Metabolit Sekunder Dari Fraksi 3 …

Asplenium nidus, commonly known as bird's nest fern, belongs to the Aspleniaceae family. This fern typically grows in both lowland and highland areas, characterized by a single leaf and a rosette-shaped group of leaves, and it cannot tolerate direct sunlight. This study aims to isolate and characterize compounds from the chloroform extract of A. nidus and evaluate its antifungal activity using …

Isolasi Senyawa Aktif Antibakteri Dari Ekstrak Etil Asetat Daun Lampeni (Ar…

Infections caused by microorganisms such as bacteria, are becoming increasingly difficult to treat due to improper use of antibiotics leading to bacterial resistance. Therefore, new antibacterial agents are needed, and one continuously developed source is plants. One potential herbal plant is lampeni (Ardisia humilis Vahl) from the Primulaceae family and Ardisia genus, with several species repo…

Analisis Disparitas Intraregional Di Provinsi Riau Dalam Satu Dekade Terakhi…

Indeks Williamson menunjukkan bahwa ketimpangan antarwilayah di Riau mengikuti pola konvergensi dengan kurva cenderung berbentuk huruf U terbalik, artinya ketimpangan pada awalnya meningkat tetapi kemudian menurun seiring waktu. Kabupaten Bengkalis, Siak, Rohul, Inhil, dan Meranti merupakan penyumbang utama ketimpangan, Bengkalis dan Siak berkontribusi karena di atas rata-rata, sedangkan R…

Kisi Serat Bragg Bertingkat Pada Sistem Komunikasi Optik Menggunakan Dual-Mod…

Cascaded Fiber Bragg Grating (CasFBG) was introduced as an innovative solution to address the challenge of optical signal dispersion on single-mode optical fibers. The system is designed to improve the quality of optical transmission by minimizing the dispersion effect, so as to support the performance of more reliable and efficient optical communication networks. The implementation and analysi…

Pengembangan Bahan Ajar Pembelajaran Hikayat Berbentuk E-book Sekolah Menenga…

This study aims to produce teaching materials for learning hikayat in the form of E-books to facilitate teachers and students in increasing their knowledge of hikayat. The method used is the Research and Development (R&D) method, with the ADDIE model. Data collection was carried out using a measuring instrument in the form of a questionnaire. The questionnaires are teacher questionnaire instrum…

Pengembangan Bahan Ajar Menulis Cerita Pendek Bermuatan Kearifan Lokal Siswa …

This study aims to produce a product of teaching materials for writing short stories containing local wisdom for grade XI students of SMA Negeri 2 Tembilahan to improve short story writing skills and students' cultural literacy knowledge. The research method used is Research and Development (R&D) with the ADDIE development model. Data collection techniques include interviews, validation sheets,…

Pengembangan Bahan Ajar Keterampilan Menulis Teks Laporan Hasil Observasi Ber…

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2210246924

Pembelajaran Menulis Teks Prosedur Menggunakan Bahan Ajar Bermuatan Budaya Me…

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2210246916