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All Journal Jurnal Natur Indonesia Biota: Jurnal Ilmiah Ilmu-Ilmu Hayati Abdimas Talenta : Jurnal Pengabdian Kepada Masyarakat JPT : JURNAL PROTEKSI TANAMAN (JOURNAL OF PLANT PROTECTION) Jurnal Ilmiah PANNMED (Pharmacist, Analyst, Nurse, Nutrition, Midwivery, Environment, Dentist) Jurnal Pembelajaran dan Biologi Nukleus IJOEP : International Journal of Ecophysiology Unri Conference Series: Community Engagement Bioscientist : Jurnal Ilmiah Biologi Jurnal Pengabdian Inovasi dan Teknologi Kepada Masyarakat Community Service Seminar and Community Engagement (COSECANT)
Yurnaliza, Yurnaliza
Universitas Sumatera Utara
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Sleep Late Impact on The Salivary pH Levels and Amylase Activity among Male Students who has Different BMI Category Yurnaliza
International Journal of Ecophysiology Vol. 4 No. 2 (2022): International Journal of Ecophysiology
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/ijoep.v4i2.11379

Abstract

The lack of sleep could damage the circadian rhythm, which has implications for health issues. Here we conduct a survey on Students from the Faculty of Social and Political using purposive random sampling, by targeting student who has sleep duration low than 8 hours. We are using a questionnaire to gain information about the sleeping duration and also the Body Mass Index (BMI). Moreover, we also collect saliva samples from the students. pH Universal Indicators are used to measure the pH levels of saliva. We predict the salivary amylase activity by measuring the decrease of the substrate. We found about 27 students have a sleep duration of fewer than 6 hours. Then 19 students have a sleep duration of about 8 - 6 hours. Finally, only 5 students have a sleep duration of more than 8 hours. Our study suggests there is no significant difference between the 3 categories of sleep duration on saliva pH levels and salivary amylase activity. The same for the BMI categories. Although there are small differences sleep duration and BMI is not the major factor influencing the pH levels and amylase activity in saliva
PENGENALAN IPTEK PENGAWETAN MENGATASI KERUSAKAN PANEN PADA KELOMPOK TANI JAMUR TIRAM DI MEDAN Yurnaliza Yurnaliza; Liana Dwi Sri Hastuti; Fachri Fauzi; Desy Christine Naibaho; Retno Widia Sari
Prosiding COSECANT : Community Service and Engagement Seminar Vol 1, No 2 (2021)
Publisher : Universitas telkom

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (147.282 KB) | DOI: 10.25124/cosecant.v1i2.17541

Abstract

Jamur dikenal sebagai bahan makanan yang bergizi tinggi, terutama karena kandungan proteinnya yang tinggi. Diketahui bahwa protein nabati yang terkandung dalam jamur tiram sebanding dengan protein yang terkandung dalam sayuran. Hal ini menjadi salah satu penyebab meningkatnya permintaan jamur tiram dari tahun ke tahun di Indonesia khususnya di Sumatera Utara. Hal ini sejalan dengan semakin banyaknya masyarakat yang sadar akan pentingnya makanan kesehatan. Jamur tiram akan menjadi peluang usaha yang menggiurkan dan menjanjikan namun proses penanganan pasca panen menjadi penting dan perlu diperhatikan sebagai faktor penentu dalam proses budidaya jamur. Penanganan pascapanen yang tidak sesuai dengan prosedur yang seharusnya dapat menyebabkan rendahnya kualitas jamur tiram dan akibatnya menurunkan harga jual jamur tiram. Metode survei, sosialisasi, dan demonstrasi praktik langsung telah dilakukan oleh tim ABDIMAS. Komunitas ini bertujuan untuk memberikan peningkatan keterampilan petani dalam menangani proses pasca panen yang meliputi pemilahan, grading, pengemasan, penyimpanan, transportasi. Untuk memperpanjang masa simpan jamur tiram petani diberikan pengetahuan tentang cara pengawetan dengan proses pengeringan, pengawetan segar, pengalengan, teknik penggaraman dan pasta jamur.
Quality of Effective Microorganisms-based Liquid Fertilizer from Fermented Papaya Fruits (Carica papaya L.) Simarmata, Wilander; Yurnaliza, Yurnaliza; Nurwahyuni, Isnaini
JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Vol 8, No 2: Jurnal Pembelajaran Dan Biologi Nukleus Juli 2022
Publisher : Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jpbn.v8i2.2733

Abstract

Papaya (Carica papaya L.) is one of the most popular fruits in the community and is generally only used as an ingredient for consumption in a fresh state. Papaya fruit production tends to be dynamic where sometimes the abundant amount of fruit may not necessarily be marketed directly. This causes the stock of papaya fruit during storage to rot and cannot be reused. This study aims to explore the potential of ripe papaya fruit to be processed as a substrate for the manufacture of liquid fertilizer using local microorganisms or effective microorganisms (EM). The quality of EM-based liquid fertilizer was determined based on the bacterial population density (CFU/mL) using the standard plate count (SPC) method on different growth media, then the levels of IAA and NPK in the applied fermented papaya fruit. The results showed the occurrence of nitrogen fixing bacteria, phosphate solubilizing bacteria and chitinolytic bacteria besides the cosmopolite bacteria. The optimum level of IAA in the fermented papaya fruit was EM + molasses (100%) while the NPK profile was still higher in the EM treatment without molasses.
Potential of Nematophagous Fungi from Kutalimbaru, North Sumatra, Indonesia, as Biological Control Agents to Manage Root Knot Nematodes, Meloidogyne incognita Simanjuntak, Wira Risa Lina; Hastuti, Liana Dwi Sri; Yurnaliza, Yurnaliza
Jurnal Proteksi Tanaman (Journal of Plant Protection) Vol. 9 No. 1 (2025): June 2025
Publisher : Plant Protection Department, Faculty of Agriculture, Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jpt.9.1.26-37.2025

Abstract

Root-knot nematodes (RKN), especially Meloidogyne incognita, are one of the most damaging and widespread plant-parasitic nematodes (PPNs) in cultivated plants worldwide. The intensive application of chemical nematicides in controlling these pests raises environmental and ecological concerns, prompting the need for sustainable alternatives. This study aimed to isolate and evaluate the predatory potential of indigenous nematode-trapping fungi (NTF) from the rhizosphere soils of healthy tomato plants against M. incognita under in vitro conditions. Soil samples were processed using the soil sprinkle technique, and fungal isolates capable of forming traps were screened by exposing them to second-stage juvenile (J2) of M. incognita. This study isolated 20 nematophagous fungi that have antagonistic activity against M. incognita from the rhizosphere soil of tomato plants. Among these, four isolates were identified as nematode-trapping fungi, with TRK 04 showing the highest predation efficacy, followed by TRK 07, TRK 09, and TRK 16. All four isolates were identified as part of the Arthrobotrys genus. These findings highlight the potential of indigenous nematophagous fungi as sustainable biocontrol agents for managing root-knot nematodes. Their application could support the development of environmentally friendly agricultural practices and reduce reliance on chemical nematicides. Further, in vivo studies are recommended to validate their efficacy under field conditions.
Skrining Actinomycetes Penghasil L-asparginase dari Pantai Olo, Sumatera Utara dan Uji Aktivitas Enzim Hartini, Martha Yeni Sry; Yurnaliza; Hastuti, Liana Dwi Sri
Bioscientist : Jurnal Ilmiah Biologi Vol. 13 No. 3 (2025): September
Publisher : Department of Biology Education, FSTT, Mandalika University of Education, Indonesia.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/bioscientist.v13i3.17133

Abstract

This research aims to isolate actinomycetes that produce the enzyme L-asparaginase from Olo Beach and to determine the activity of the L-asparaginase enzyme produced. Actinomycetes producing the enzyme L-asparaginase were obtained through the following steps: isolation on SCA medium using the spread plate method; selection of L-asparaginase-producing actinomycetes on M-9 liquid medium with phenol red as a color indicator; production of L-asparaginase based on the principle of fermentation in production medium, followed by measurement of L-asparaginase activity and protein content. Protein content was determined using the Lowry method with Bovine Serum Albumin (BSA) as the standard. The data obtained were analyzed using ammonia and BSA standard curves. The results showed that 11 actinomycetes isolates from Olo Beach were capable of producing L-asparaginase. Qualitative selection showed a change in media color from yellow to pink, indicating the presence of L-asparaginase activity. Quantitatively, the highest L-asparaginase enzyme activity was 40.688 U/mL and the highest specific activity was 123,677 U/mg, found in isolate SPO 6. The lowest enzyme activity was 31,651 U/mL and the lowest specific activity was 25,874 U/mg. Specific activity is influenced by enzyme activity and protein content.
Pemanfaatan Daun Salam, Batang Serai dan Buah Pepaya Sebagai Inovasi Dalam Produk Makanan Sehat dan Potensi Dalam Pengembangan UMKM di Desa Sungai Pinang Aliyya Intan Misyilla; Debi Setiawan; Amelia Putri; Aprilia Asri; Nantika Indah Sari; Ridha Ramana; Yurnaliza; Yusman; Indriani; Cheesa Priscilla Ronald; Mahendra Kurniawan Manurung; Bella Patricia; Shanty; Seny Mahara
JDISTIRA - Jurnal Pengabdian Inovasi dan Teknologi Kepada Masyarakat Vol. 3 No. 2 (2023)
Publisher : Yayasan Rahmatan Fidunya Wal Akhirah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58794/jdt.v3i2.513

Abstract

Sungai Pinang is one of the villages located in Tambang District, Kampar Regency. Sungai Pinang Village has 4 hamlets with each consisting of 2 RWs and 4 RTs. This activity is located in Hamlet III, RT 02, RW 01. Activities carried out include making 7 superior products consisting of Bay Leaf Herbal Tea; Bay leaf capsules; Spray, Serum, Lemongrass Oil Diffuser; Papaya Jam and Pudding which were then socialized to Posyandu mothers and residents around Sungai Pinang Village. This activity is carried out to develop knowledge and skills, as well as educate the public to be able to utilize natural ingredients as a source of food and medicine.
The utilization of organic waste into fermented goat fodder in Tanjung Rejo village, Deli Serdang regency Yeanny, Mayang Sari; Yurnaliza; Hannum, Saleha
ABDIMAS TALENTA: Jurnal Pengabdian Kepada Masyarakat Vol. 4 No. 2 (2019): ABDIMAS TALENTA: Jurnal Pengabdian Kepada Masyarakat
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (321.283 KB) | DOI: 10.32734/abdimastalenta.v4i2.4144

Abstract

Community service activities with the title of The Utilization of Organic Waste into Fermented Goat Fodder in Tanjung Rejo Village, Deli Serdang Regency will be held in May - November 2019.The purpose of this community service is to utilize organic waste into fermented goat fodder in Tanjung Rejo village.Organic waste such as straw, banana tree and others can be converted into fermented goat fodder which is economical, nutritious and environmentally friendly.The specific target of this community service is that the fermented goat fodder produced can be stored for a long time with good quality.The method used is a combination of counselling, training, hands-on practice and work evaluation.The procedures of making fermented goat fodder are as follows; (1) Chop straw or banana tree using a chopper machine, this stage serves to make the fermentation process easier. (2) Prepare the place of manufacture, can use tarpaulins, large plastic or large barrels (3). Dissolve sugar or sugar cane with water plus SOC-HCS probiotic solution. (4) Enter the straw, husk and bran at the place of preparation that has been prepared previously. (5) Flush all materials that have been arranged evenly in the place of manufacture with a solution of sugar and SOC-HCS that had been dissolved with water. (6) Mix all ingredients evenly. (7) After everything has been stirred evenly, then cover the place of manufacture with a tarp or with anything, make sure to be airtight. (8) Wait for 1 - 14 days. The fermented fodder that you have made from straw will be ready or if the fermentation feed is made using a banana tree, it can be faster.All products produced can be used for their own needs or sold according to the needs of the people of Tanjung Rejo village, especially the Tanjung Rejo goat breeders group.
Science and Technology in Manufacture of Oyster Mushroom Seedlings Hastuti, Liana Dwi Sri; Yurnaliza, Yurnaliza; Fauzi, Fachri
ABDIMAS TALENTA: Jurnal Pengabdian Kepada Masyarakat Vol. 7 No. 2 (2022): ABDIMAS TALENTA: Jurnal Pengabdian Kepada Masyarakat
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/abdimastalenta.v7i2.8795

Abstract

Oyster mushrooms (Pleurotus ostreatus) currently are in high demand because of their good taste and very high protein content. This nutritious and healthy food source make oyster mushrooms a preferable commodity in meeting food needs. It can be marked by the growing demand for oyster mushrooms while oyster mushroom production has not been able to meet the needs of the market, especially mushroom farmers in North Sumatra began to go from just farming by starting from a baglog that was ready to harvest, to providing its own seedlings. Farmers are expected to be able to produce initial seeds directly from fresh mushrooms that have commercial values. This program provides knowledge to farmers on how to develop seeds from fresh mushrooms to produce F-0, F-1, F-2 F-3 and finally baglog. Socialization, live demonstrations and interviews have been conducted by the team. Techniques for obtaining good seedlings by working with aseptic culture techniques and sterilization of growing media have also been given briefly to farmers. This program is expected that farmers have skills in producing seeds with subculture methods, as well as gain knowledge on using sterilization and aseptic techniques to be able to produce good and quality seeds.
Isolation and Morphological Characterization of Fungal Isolates from Leachate of Namo Bintang Landfill, North Sumatra Simanjuntak, Niken; Munir, Erman; Yurnaliza
Bioscientist : Jurnal Ilmiah Biologi Vol. 13 No. 4 (2025): December
Publisher : Department of Biology Education, FSTT, Mandalika University of Education, Indonesia.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/bioscientist.v13i4.18277

Abstract

This study aims to isolate and characterize the morphological characteristics of fungal colonies obtained from leachate water at a landfill site. To obtain fungi from leachate water, the following steps were taken: Fungi were isolated using the pour plate method with Potato Dextrose Agar (PDA) medium; morphological characterization of fungi was performed macroscopically and microscopically. Macroscopically, by observing the shape, edges, texture, and color of the fungal colonies, and microscopically, by observing the shape of the hyphae and the presence of asexual spores. The results showed that seventeen fungal isolates were successfully isolated from the leachate of the Namo Bintang landfill with different morphologies. The macroscopic characteristics of the fungal colonies showed that 15 fungal isolates had round colonies, and the other two isolates (NKD 07 and NKT 14) had irregular colonies. The edges of the fungal colonies varied, ranging from flat, wavy, to serrated. The color of the fungal colonies was predominantly gray and green. The texture of the fungal colonies varied from powdery, hairy, smooth, to cotton-like. Microscopic characteristics of the fungi show that most fungal isolates have septate hyphae and varied conidia shapes, such as round, oval, crescent, and tubular. These findings indicate that the leachate from the Namo Bintang landfill contains diverse fungi with different colony morphological characteristics, making it possible to develop them as biological agents.
Qualitative Screening and Activity Assay of L-asparaginase-Producing Fungi from Tempeh Tahyat, Niva; Yurnaliza; Dwihastuty, Liana
Bioscientist : Jurnal Ilmiah Biologi Vol. 13 No. 4 (2025): December
Publisher : Department of Biology Education, FSTT, Mandalika University of Education, Indonesia.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/bioscientist.v13i4.18443

Abstract

This study aims to isolate and determine the types of fungi in tempeh that are capable of producing the enzyme L-asparaginase and how the enzyme activity is produced. The following steps were taken: Fungi were isolated using the pour plate method with Potato Dextrose Agar (PDA) medium; morphological characterization of fungi was performed macroscopically and microscopically.The ability to produce asparaginase was assessed qualitatively using modified liquid M9 medium and quantitative assay of L-asparaginase activity with the Nessler reagent. Potential fungi were identified based on identification books. The results of fungal isolation from tempeh yielded of 7 fungal isolates. Qualitative selection of fungal isolates from tempeh capable of producing L-asparaginase resulted in 4 fungi capable of producing the L-asparaginase enzyme, indicated by a pink color change in the medium. Quantitative assay was performed using an enzyme activity test .The results of quantitative selection showed that the highest activity of L-asparaginase enzyme was found in fungal isolate with the code TP 3, reaching 16,386 U/mL, which has been identified macroscopically and microscopically and is classified as belonging to the genus Aspergillus. These findings indicate that fungi from tempeh have the potential to produce the enzyme L-asparaginase.
Co-Authors Adrian Hartanto Aliyya Intan Misyilla Amelia Putri Aprilia Asri Bella Patricia Chairani Chairani Chairani Chairani Cheesa Priscilla Ronald Debi Setiawan Deddy Rusika Desy Christine Naibaho DWI SURYANTO Dwihastuty, Liana Erman Munir Fachri Fauzi Fauzi, Fachri Hartini, Martha Yeni Sry Indriani Isnaini Nurwahyuni KIKI NURTJAHJA Langkah Sembiring LANGKAH SEMBIRING Liana Dwi Sri Hastuti Lubis, Nita A. Mahendra Kurniawan Manurung Mayang Sari Yeanny Nantika Indah Sari Nita A. Lubis Retno Widia Sari Ridha Ramana Riska Annisa Putri Rusika, Deddy Saleha Hannum Sebastian Margino Sebastian Margino Seny mahara Shanty Simanjuntak, Niken Simanjuntak, Wira Risa Lina Simarmata, Wilander Sinaga, Riyanto Sri Dwi Hastuti tahyat, niva Waty, Syahdiana Wita E Tarigan Yusman