Item yang Penulisnya adalah "Rahayu, Yayuk Putri"

Zulkaroza, Bunga Violetta dan Rahayu, Yayuk Putri dan Nasution, Haris Munandar dan Lubis, Minda Sari (2026) Isolation and Antibacterial Activity of Bacteriocins from Lactic Acid Bacteria Isolated from Red Cabbage Sauerkraut (Brassica oleracea L.) against Escherichia coli and Staphylococcus aureus / Isolasi dan Uji Antibakteri Bakteriosin Bakteri Asam Laktat (BAL) dari Sauerkraut Kubis Ungu (Brassica oleracea L) Terhadap Escherichia coli dan Stapylococcus aureus. Journal of Pharmaceutical and Sciences. hal. 3164-3174.

Maulidya, Tahnia dan Rahayu, Yayuk Putri dan Lubis, Minda Sari dan Nasution, Haris Munandar (2026) Minimum Inhibitory Concentration and Minimum Bactericidal Concentration of Ethanol Extract and Nano Extract of Durian Peel (Durio zibethinus murr) against Staphylococcus epidermidis / Konsentrasi Hambat Minimum Dan Konsentrasi Bunuh Minimum Ekstrak Etanol Dan Nano Ekstrak Kulit Durian (Durio zibethinus murr) Terhadap Bakteri Staphylococcus epidermidis. Journal of Pharmaceutical and Sciences. hal. 3095-3104.

Sitompul, Toni Andareas dan Nasution, Haris Munandar dan Rahayu, Yayuk Putri dan Nasution, Muhammad Amin (2026) Phytochemical Screening and Antibacterial Activity Test of the Ethanolic Extract of Jeluak (Microcos tomentosa (L.)) Leaves Against Escherichia coli and Staphylococcus aureus / Skrining Fitokomia Dan Uji Aktivitas Antibakteri Ekstrak etanol daun jeluak (Microcos tomentosa (L.)) Terhadap Bakteri Escherichia coli dan Staphyloccocus aureus. Journal of Pharmaceutical and Sciences. hal. 1462-1472.

Sabila, Anisa dan Rahayu, Yayuk Putri dan Nasution, Haris Munandar dan Yuniarti, Rafita (2025) Minimum Inhibitory Concentration and Minimum Fungicidal Concentration of Extract and Nanoparticles of Ethanol Extract of Golden Trumpet Leaves (Allamanda cathartica L.) Against Malassezia furfur / Konsentrasi Inhibitori Minimum dan Konsentrasi Fungisidal Minimum Ekstrak dan Nanopartikel Ekstrak Etanol Daun Terompet Emas (Allamanda cathartica L.) terhadap Malassezia furfur. Journal of Pharmaceutical and Sciences. hal. 2749-2759.

Nurmala, Syandoval Triska Ananda dan Rahayu, Yayuk Putri dan Pulungan, Ainil Fithri dan Miswanda, Dikki (2025) Minimum Inhibitory Concentration and Minimum Bactericidal Concentration of Papaya Leaf (Carica papaya L.) Ethanol Extract and Nanoparticles Against Candida albicans / Konsentrasi Hambat Minimum dan Konsentrasi Bunuh Minimum Ekstrak dan Nanopartikel Ekstrak Etanol Daun Pepaya (Carica papaya L.) Terhadap Candida albicans. Journal of Pharmaceutical and Sciences. hal. 1594-1611.

Ayu, Tri Indah Pagar dan Nasution, Haris Munandar dan Rahayu, Yayuk Putri dan Nasution, Muhammad Amin (2025) Antibacterial Activity Test of Mouthwash Formulation from Ethanol Extract of Senduduk Leaves (Melastoma malabathricum L.) on the Growth of Streptococcus mutans / Uji Aktivitas Antibakteri Formulasi Sediaan Obat Kumur Ekstrak Etanol Daun Senduduk (Melastoma malabathricum L.) Terhadap Pertumbuhan Streptococcus mutans. Journal of Pharmaceutical and Sciences. hal. 1556-1568.

Salwa, Shakhila dan Daulay, Anny Sartika dan Rahayu, Yayuk Putri dan Ridwanto, Ridwanto (2025) Antibacterial Activity Test of Fractionated Alkaloid Extract from Raru Bark (Cotylelobium melanoxylon Pierre) Against Escherichia coli and Staphylococcus aureus Bacteria / Uji Aktivitas Antibakteri Fraksinasi Alkaloid Ekstrak Kulit Kayu Raru (Cotylelobium melanoxylon Pierre) Terhadap Bakteri Escherichia coli dan Staphylococcus aureus. Journal of Pharmaceutical and Sciences. hal. 1425-1441.

Sony, Suyefri dan Rahayu, Yayuk Putri dan Nasution, Haris Munandar dan Rani, Zulmai (2025) Minimum Inhibitory Concentration and Minimum Killing Concentration of the Extract and Nanoparticles of Pometia pinnata Leaf Extract Against Staphyloccocus aureus and Escherichia coli / Konsentrasi Hambat Minimum dan Konsentrasi Bunuh Minimum Ekstrak Dan Nanopartikel Ekstrak Daun Pometia pinnata Terhadap Staphyloccocus aureus dan Escherichia coli. Journal of Pharmaceutical and Sciences. hal. 1047-1065.

Rafika, Intan Maya dan Rahayu, Yayuk Putri dan Nasution, Haris Munandar dan Miswanda, Dikki (2025) Minimum Inhibitory Concentration and Minimum Killing Concentration of Cabbage Leaf Ethanol Extract and Nanoparticles (Brassica oleracea L.) Against Malassezia furfur / Konsentrasi Hambat Minimum dan Konsentrasi Bunuh Minimum Ekstrak dan Nanopartikel Ekstrak Etanol Daun Kubis (Brassica oleracea L.) Terhadap Malassezia furfur. Journal of Pharmaceutical and Sciences. hal. 1018-1032.

Amaliana, Amaliana dan Nasution, Haris Munandar dan Lubis, Minda Sari dan Rahayu, Yayuk Putri (2025) Formulation and Testing of Antibacterial Activity of Liquid Soap Preparations Ethanol Extract of Arabika Coffee Leaves (Coffea arabica L.) Against the Bacteria Staphylococcus aureus / Formulasi dan Uji Aktivitas Antibakteri Sediaan Sabun Cair Ekstrak Etanol Daun Kopi Arabika (Coffea arabica L.) Terhadap Bakteri Staphylococcus aureus. Journal of Pharmaceutical and Sciences. hal. 882-892.

Rahayu, Yayuk Putri dan Nasution, Haris Munandar dan Prasetyo, Healthy Aldriany (2025) Differences in Fermentation Media on Single Cell Protein (SCP) Production Using Saccharomyces cerevisiae / Perbedaan Media Fermentasi Terhadap Produksi Protein Sel Tunggal (PST) Menggunakan Kultur Saccharomyces cerevisiae. Journal of Pharmaceutical and Sciences. hal. 740-752.

Shilvia, Fatin dan Daulay, Anny Sartika dan Ridwanto, Ridwanto dan Rahayu, Yayuk Putri (2025) Antioxidant activity and toxicity test of yellow wood extract (Arcangelisia flava (L. Merr)) / Uji aktivitas antioksidan dan toksisitas dari ekstrak kayu kuning (Arcangelisia flava (L.Merr)). Journal of Pharmaceutical and Sciences. hal. 520-535.

Safira, Liyuza dan Rahayu, Yayuk Putri dan Nasution, Haris Munandar dan Miswanda, Dikki (2025) Determination of minimum inhibitory concentrations and minimum killing concentrations of matoa leaf (Pometia pinnata) ethanol extract and nanoparticles against Cutibacterium acnes / Konsentrasi hambat minimum dan konsentrasi bunuh minimum ekstrak etanol dan nanopartikel ekstrak etanol daun matoa (Pometia pinnata) terhadap Cutibacterium acnes. Journal of Pharmaceutical and Sciences. hal. 450-466.

Khofifah, Nur dan Rahayu, Yayuk Putri dan Nasution, Haris Munandar dan Miswanda, Dikki (2025) Determination of minimum inhibitory concentration and minimum bactericidal concentration of papaya leaf extract (Carica papaya L.) and its nanoparticles against Cutibacterium acnes bacteria / Penentuan konsentrasi hambat minimum dan konsentrasi bunuh minimum ekstrak dan nanopartikel ekstrak daun pepaya (Carica Papaya L.) terhadap Bakteri Cutibacterium acnes. Journal of Pharmaceutical and Sciences. hal. 51-66.

Handayana, Icha dan Mambang, D. Elysa Putri dan Nasution, M. Pandapotan dan Rahayu, Yayuk Putri (2024) Antipyretic activity test of ethanol extract of peacock flower (Caesalpinia pulcherrima (L.) on male mice (Mus musculus) induced DPT-HB Vaccine / Uji aktivitas antipiretik ekstrak etanol daun kembang merak (Caesalpinia pulcherrima (L.) terhadap mencit jantan (Mus musculus) yang diinduksi vaksin DPT-HB. Journal of Pharmaceutical and Sciences. hal. 529-536.

Rahayu, Yayuk Putri dan Nasution, Haris Munandar dan Supiyani, Supiyani (2024) Prevalence and identification of staphylococcus aureus pathogenic bacterial contamination in krispy chicken in the Amplas Area of Medan City using rabbit plasma coagulase with EDTA / Prevalensi dan identifikasi cemaran bakteri patogen staphylococcus aureus pada ayam krispy Daerah Amplas Kota Medan menggunakan rabbit coagulase plasma with EDTA. Journal of Pharmaceutical and Sciences. hal. 340-347.

Sepriani, Ananda dan Nasution, Haris Munandar dan Mambang, D. Elysa Putri dan Rahayu, Yayuk Putri (2023) Antibacterial activity test of the n-hexane and ethyl acetate fraction of kenanga leaves (Cananga odorata (Lam.) Hook. F. &Thomson) on Staphylococcus epidermidis / Uji aktivitas antibakteri fraksi n-heksan dan etil asetat daun kenanga (Cananga odorata (Lam.) Hook. F. & Thomson) terhadap bakteri Staphylococcus epidermidis. Journal of Pharmaceutical and Sciences (1). hal. 73-79.

Rossa, Aliffa dan Daulay, Anny Sartika dan Ridwanto, Ridwanto dan Rahayu, Yayuk Putri (2023) Antioxidant activity and toxicity of raru (Cotylelobium lanceolatum Craib) bark extract using the DPPH method and BSLT method / Aktivitas antioksidan dan uji toksisitas ekstrak kulit batang kayu raru (Cotylelobium lanceolatum Craib) dengan menggunkan metode DPPH dan metode BSLT. Journal of Pharmaceutical and Sciences (1). hal. 339-352.

Dena, Mutia dan Dalimunthe, Gabena Indrayani dan Lubis, Minda Sari dan Rahayu, Yayuk Putri (2023) Formulation and antibacterial activity test of aloe vera leaf meat ointment preparation (Aloe vera L.) on the growth of bacteria Staphylococcus aureus on healing purulent wounds / Formulasi dan uji aktivitas antibakteri sediaan salep daging daun lidah buaya (Aloe vera L.) terhadap bakteri Staphylococcus aureus pada penyembuhan luka bernanah. Journal of Pharmaceutical and Sciences (1). hal. 268-275.

Mulyani, Fitri dan Rahayu, Yayuk Putri dan Daulay, Anny Sartika dan Nasution, Haris Munandar (2023) Phytochemical screening and antioxidant activity test of ethanol extract of casturi mango leaves (Mangifera casturi Koesterm.) from Drien Bungong village, Pidie Jaya, using the DPPH method / Skrining fitokimia dan uji aktivitas antioksidan ekstrak etanol daun mangga kasturi (Mangifera casturi Koesterm.) dari Gampong Drien Bungong, Pidie Jaya dengan metode DPPH. Journal of Pharmaceutical and Sciences (1). hal. 49-63.

Yuliandari, Novi dan Rahayu, Yayuk Putri dan Lubis, Minda Sari dan Yuniarti, Rafita (2023) Antibacterial activity test of anti-acne gel formulations ethanol extracts of avocado skin (Persea americana Mill) against Staphylococcus aureus / Uji aktivitas antibakteri formulasi sediaan gel antijerawat ekstrak etanol kulit buah alpukat (Persea americana Mill) terhadap bakteri Staphylococcus aureus. Journal of Pharmaceutical and Sciences. hal. 1960-1969.

Rezeki, Tawir Rina dan Nasution, Haris Munandar dan Nasution, M Pandapotan dan Rahayu, Yayuk Putri (2023) Phytochemical screening and isolation of steroid/triterpenoid compounds from n-hexane extract of jackfruit seeds (Artocarpus heterophyllus Lam). / Skrining fitokimia dan isolasi senyawa steroid/triterpenoid dari ekstrak n-heksana biji nangka (Artocarpus heterophyllus Lam). Journal of Pharmaceutical and Sciences. hal. 1854-1861.

Nissa, Lulu Ilma Khoirun dan Rahayu, Yayuk Putri dan Mambang, D. Elysa Putri dan Daulay, Anny Sartika (2023) Prevalence of bacteria Salmonella sp. on chicken meat in traditional markets, market modern, and famous brands in Medan city / Prevalensi bakteri Salmonella sp. pada daging ayam potong di pasar tradisional, pasar modern, dan merek terkenal di kota Medan. Journal of Pharmaceutical and Sciences. hal. 1842-1853.

Simarmata, Cindy Widya Rosa Br dan Nasution, Haris Munandar dan Nasution, M Pandapotan dan Rahayu, Yayuk Putri (2023) Phytochemical screening and isolation of steroid/triterpenoid compounds from n-hexane extract of Papaya leaves (Carrica papaya L) / Skrining fitokimia dan isolasi senyawa steroid/triterpenoid dari ekstrak n-heksana daun Pepaya (Carrica papaya L). Journal of Pharmaceutical and Sciences. hal. 1819-1830.

Afni, Lastri dan Daulay, Anny Sartika dan Ridwanto, Ridwanto dan Rahayu, Yayuk Putri (2023) Determination of total phenolic levels of raru wood extract (Cotylelobium lanceolatum Craib) based on differences in ethanol concentration by uv-vis spectrophotometry method / Penetapan kadar fenolik total ekstrak kayu raru (Cotylelobium lanceolatum Craib) berdasarkan perbedaan konsentrasi etanol dengan metode spektrofotometri UV-Vis. Journal of Pharmaceutical and Sciences. hal. 1811-1818.

Natasya, Elma dan Daulay, Anny Sartika dan Ridwanto, Ridwanto dan Rahayu, Yayuk Putri (2023) Determination of total flavonoid content of wood extract raru (Cotylelobium lanceolatum Craib ) based on differences in ethanol concentration with Uv-Vis spectrophotometry methods / Penetapan kadar flavonoid total ekstrak kayu raru (Cotylelobium lanceolatum Craib) berdasarkan perbedaan konsentrasi etanol dengan metode spektrofotometri Uv-Vis. Journal of Pharmaceutical and Sciences. hal. 1804-1810.

Sinaga, Rosalinda Mahdalena dan Lubis, Minda Sari dan Dalimunthe, Gabena Indrayani dan Rahayu, Yayuk Putri (2023) Phytochemical Screening, Formulation, and Physical Characteristics Of Soothing Gel Aloe Vera Leaf Flesh (Aloe Vera (L.) Burm.F.) / Skrining Fitokimia, Formulasi, dan Karakteristik Fisik Sediaan Soothing Gel Daging Daun Lidah Buaya (Aloe vera (L.) Burm.f.). Journal of Pharmaceutical and Sciences. hal. 1729-1737.

Utami, Novika dan Nasution, Haris Munandar dan Yuniari, Rafita dan Rahayu, Yayuk Putri (2023) Testing the antibacterial activity of asam sunti ethanol extract against bacteria Streptococcus mutans / Uji aktivitas antibakteri ekstrak etanol asam sunti terhadap bakteri Streptococcus mutans. Journal of Pharmaceutical and Sciences. hal. 1738-1747.

Nadia, Nanda dan Mambang, D. Elysa Putri dan Nasution, M. Pandapotan dan Rahayu, Yayuk Putri (2023) Antibacterial effectiveness of ethanol extract of bisbul leaf (Diospyros discolor Willd) against Propionibacterium acnes Bacteria / Efektivitas antibakteri ekstrak etanol daun bisbul (Diospyros discolor Willd) terhadap bakteri Propionibacterium acnes. Journal of Pharmaceutical and Sciences. hal. 1693-1700.

Jannah, Munaziatul dan Nasution, Haris Munandar dan Nasution, M. Pandapotan dan Rahayu, Yayuk Putri (2023) Phytochemical screening and antibacterial activity test of ethanol extract of Jawa wood leaf ((Lannea coromandelica) (Houtt) Merr against bacteria Propionibacterium acnes and Staphylococcus epidermidis / Skrining fitokimia dan uji aktivitas antibakteri ekstrak etanol daun kayu Jawa ((Lannea coromandelica) (Houtt) Merr terhadap bakteri Propionibacterium acnes dan Staphylococcus epidermidis. Journal of Pharmaceutical and Sciences. hal. 1685-1692.

Jamil, Siti Aisyah dan Rahayu, Yayuk Putri dan Lubis, Minda Sari dan Nasution, Haris Munandar (2023) Antibacterial activity test of formulation transparent solid soap extract belimbing wuluh (Averrhoa bilimbi L.) leaf against bacteria Cutibacterium acnes / Uji aktivitas antibakteri formulasi sediaan sabun padat transparan ekstrak daun belimbing wuluh (Averrhoa bilimbi L.) terhadap bakteri Cutibacterium acnes. Journal of Pharmaceutical and Sciences. hal. 1568-1577.

Siahaan, Ika Yeni dan Nasution, Haris Munandar dan Nasution, Muhammad Amin dan Rahayu, Yayuk Putri (2023) Antibacterial Activity Test of the N-Hexane Fractions of Red Onion (Allium cepa L.) Streptococcus mutans bacteria / Uji Aktivitas Antibakteri Fraksi N-Heksan Kulit Bawang Merah (Allium cepa L.) Terhadap Bakteri Streptococcus mutans. Journal of Pharmaceutical and Sciences. hal. 1553-1560.

Nasution, Alfi Wahyudi dan Nasution, Haris Munandar dan Lubis, Minda Sari dan Rahayu, Yayuk Putri (2023) Antibacterial activity test of the n-hexane and ethyl acetate fraction of kecombrang leaf(Etlingera elatior) against Staphylococcus aureus and Escherichia coli / Uji aktivitas antibakteri fraksi n-heksana dan etil asetat daun kecombrang (Etlingera elatior) terhadap Staphylococcus aureus dan Escherichia coli. Journal of Pharmaceutical and Sciences. hal. 1488-1497.

Hasanah, Nurul dan Yuniart, Rafita dan Nasution, Haris Munandar dan Rahayu, Yayuk Putri (2023) Antioxidant activity of citrus leaf ethanol extract (Citrus nobilis L.) using the DPPH method (1,1-Diphenyl-2-Picrylhydrazyl) / Analisis aktivitas antioksidan ekstrak etanol daun jeruk kuok (Citrus nobilis L.) dengan metode DPPH (1,1-Diphenyl-2-Picrylhydrazyl). Journal of Pharmaceutical and Sciences. hal. 1416-1424.

Selfiani, Selfiani dan Nasution, M. Pandapotan dan Anny Sartika. D dan Rahayu, Yayuk Putri (2023) Antioxidant activity test of ethanol extract of jasmine leaf (Jasminum sambac (L.) Sol. ex Aiton Using Dpph Method / Uji aktivitas antioksidan ekstrak etanol daun bunga melati (Jasminum sambac (L.) Sol. ex Aiton) dengan metode DPPH. Journal of Pharmaceutical and Sciences. hal. 1425-1433.

Rahayu, Yayuk Putri dan Mambang, D. Elysa Putri dan Nasution, Haris Munandar dan Ramadani, Adelia (2023) Detection of Staphylococcus aureus contamination in local crispy chicken around one of the universities of Medan city / Deteksi cemaran Staphylococcus aureus pada ayam krispy lokal di sekitar salah satu universitas kota Medan. Journal of Pharmaceutical and Sciences. hal. 1356-1362.

Mayanti, Lisda dan Rahayu, Yayuk Putri dan Lubis, Minda Sari dan Yuniarti, Rafita (2023) Analysis of Coliform Bacteria Contamination in Snack Sauces Around Vocational High Schools in Medan City / Analisis Cemaran Bakteri Coliform pada Saus Jajanan di Sekitar Sekolah Menengah Kejuruan di Kota Medan. Journal of Pharmaceutical and Sciences. hal. 1282-1289.

Ramadani, Adelia dan Rahayu, Yayuk Putri dan Nasution, M. Pandapotan dan Yuniarti, Rafita (2023) Analysis of bacterial contamination Staphylococcus Aureus on roadside crispy chicken meat and fast food in the Teladan area of Medan city / Analisis cemaran bakteri Staphylococcus aureus pada daging ayam krispy pinggir jalan dan fast food di daerah Teladan kota Medan. Journal of Pharmaceutical and Sciences. hal. 1265-1272.