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INDONESIA
Jurnal Natur Indonesia
Published by Universitas Riau
ISSN : 14109379     EISSN : 25030345     DOI : https://doi.org/10.31258/jnat
Core Subject : Science, Agriculture,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemistry Earth & Planetary Sciences Physics
Jurnal Natur Indonesia has been published since 1998, is a science journal that presents articles on research results, thoughts and views from researchers and experts in biosciences (basic science), including biology, physics, chemistry and mathematics. Jurnal Natur Indonesia involves reviewers who review each article according to their field of knowledge. The names and institutional origins of the Reviewers are listed on the normal two pages of each volume of publication. The journal is published twice a year, in April and October. In the field of biosciences (basic science) Biology, Physics, Chemistry, Mathematics.
Arjuna Subject : Biokimia, Genetika dan Biologi Molekuler - Biokimia, Genetika dan Biologi Molekuler (Lain-Lain)
Articles 84 Documents
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Antihyperglycemic Test of Ethanol Extract of Soursop Leaf (Annona muricata L.) on Blood Sugar Levels of Male Mouse (Mus musculus) Induced by Glucose Kusuma, Gusti Putu Okapanji Reza
Jurnal Natur Indonesia Vol. 19 No. 1 (2021): April
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jnat.19.1.1-5

Abstract

Soursop leaf (Annona muricata L.) is an herbal plant that is widely used by the public empirically because it has many properties. The sling leaf contains tannin compounds, alkaloids, as well as several other chemical compounds including annonaceous acetogenin, which can be used as a treatment. This study aims to find out if soursop leaf extract has the effect of deducting blood glucose levels in mice test animals (Mus musculus) which induced a 50% glucose solution. The study used the RAL method (complete random design) and 20 male mice were divided into 5 groups with 4 repetitions. Group P1, P2, and P3 (treatment group) administered ethanol extract of sine leaves at doses of 250, 500, and 750 mg/kg bb respectively, while k- and k+ (control group) administered CMC 0.5% and glibenclamide with oral administration. The data obtained were statistically analyzed with ANOVA (Variance analysis) one-way to find out the differences between treatment groups and continued with the BNT test (The smallest real difference) to find out meaningful differences between groups. The results showed that there were differences between the treatment group and the control group. On the 7th day of the BNT test, the treatment group with a dose of 750 mg/kg bb showed significant differences between the negative Control group (CMC 0'5%), Positive control (Glibenclamide), P1 (250 mg/kg bb), and P2 (500 mg/kg bb), while on the 14th day showed no significant difference with the treatment group of 500 mg/kg bb. concluded from this study that all concentrations of ethanol extract of sling leaves could lower blood glucose levels in test animals, with the most optimal decrease being the group at a dose of 750 mg/kg bb.
The Effect of Benzyl Amino Purine (BAP) and Coconut Water on the Growth of Vanilla (Vanilla planifolia Andrews.) In Vitro Kusbianto, Dwi Erwin; Haliza, Nurhayadatul; Restanto, Didik Pudji; Wulanjari, Distiana; Avivi, Sholeh; Prayoga, Mohammad Candra
Jurnal Natur Indonesia Vol. 22 No. 2 (2024): October
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jnat.22.2.76-83

Abstract

Vanilla (Vanilla planifolia Andrews.) is one of the plantation crops that has a high selling price, namely wet vanilla IDR 200,000-300,000/kg, regular quality dry vanilla around 1-3 million/kg, and export quality reaching 5-7 million/kg. The opportunity for farmers to develop vanilla commodities in Indonesia is very large, but limited planting materials still hamper it. In-vitro propagation is one technique that can be used to overcome the problem of vanilla propagation in Indonesia. This research aimed to determine the interaction of BAP and coconut water on the growth of vanilla nodal explants in vitro. The method used in this research was a factorial Completely Randomized Design (CRD) with a combination of Benzyl Amino Purine (BAP) and coconut water. The BAP concentration consists of 0 mg/L, 1 mg/L, and 2 mg/L. Coconut water has 0%, 15%, and 30% levels. Data were analyzed using ANOVA and further tested with the DMRT test at a confidence level of 95%. The results showed an interaction between BAP and coconut water on the growth of vanilla explants. The combination treatment of 1 mg/L BAP + 15% coconut water showed the best results with the fastest response time of 8.76+1.53 DAP, average shoot length 2.84±0.70 cm/explant and average root length 0.75±0.07 cm/explant.
Wild Seaweed at Kerandangan Senggigi Beach, Batu Layar District, West Lombok Regency Nunik Cokrowati; Nur Yatin; Jayusri Jayusri; Irika Devi Anggraini
Jurnal Natur Indonesia Vol. 22 No. 2 (2024): October
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jnat.22.2.84-91

Abstract

SeaweedAlgae is a type of marine plant classified as benthic macroalgae and mostly lives on the bottom of the water. Algae are seaweeds that live in the sea and belong to the thallophyta group. Seaweed contains many nutrients such as carbohydrates, vitamins, fats, minerals, and others that have great potential for development in various industries. As a maritime country, Indonesia has potential coastal and marine natural resources that can be utilized to improve the welfare of coastal communities. Seaweed is one of the many coastal and marine natural resources found along the coast of the Indonesian oceans. West Nusa Tenggara (NTB) is one of the seaweed-producing areas. One of the areas that can be found is seaweed, especially wild seaweed, in the Senggigi area, Batu Layar District, West Lombok, precisely on Kerandangan Beach. This study aimed to analyze the types of seaweed and the phytochemical content of seaweed growing on Kerandangan Beach, Senggigi, West Lombok. This study uses the purposive sampling method by taking samples that are considered representative of the research location, which is done by taking samples randomly based on the boundaries of the area that has been determined. The results of this study are There are several types of seaweed in Kerandangan Beach Borgesenia forbesii, Corallina, Gelidium, Caulerpa taxifolia, Padina, Chondrus crispus, Sargassum cristaefolium, Galaxaura rugosa, Acanthopora spicifera, Ulva intestinalis, Halimeda opuntia, and Turbinaria decurrens. This research concludes that the type with the highest antioxidant content is Padina sp., which is 81.31% and has a chlorophyll content of 14.39 mg/L.
Supplementation of Fermented Moringa Leaves in Feed on Blood Glucose of Striped Catfish (Pangasianodon hypophthalmus) Infected with Aeromonas hydrophila Windarti Windarti; Irwan Effendi; Ronal Kurniawan; Mega Novia Putri; Dimas Gusriansyah; Okta Rizal Karsih
Jurnal Natur Indonesia Vol. 22 No. 2 (2024): October
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jnat.22.2.92-99

Abstract

Moringa leaves can be used as an herbal plant in fish growth to prevent and treat bacterial infections. This study aims to determine the effect of fermented moringa leaves through feed on blood glucose in striped catfish (Pangasianodon hypophthalmus). This research was conducted from September to November 2023 at the Marine Biotechnology Laboratory, Faculty of Fisheries and Marine Sciences, Riau University. The method used is an experimental method using a completely randomized design with 4 (four) treatments and 3 (three) replicates; the treatment dose of fermented moringa leaves is T0 (control), T1 (10 g/kg feed), T2 (15 g/kg feed), and P3 (20 g/kg feed). The catfish measured 5.00 ± 1.00 cm and weighed 4.00 ± 0.50 g, reared in an 80 L tank at a stocking density of 1 fish / 4 L water. The maintenance was carried out for 60 days, and blood glucose observations were made at the beginning (H-1), day 30 (H-30), day 60 (H-60), and post-challenge test (H-75). The results showed that adding fermented moringa leaves to the diet did not affect the blood glucose of the catfish (p>0.05). This indicates that moringa leaves can keep the fish in normal condition after being challenged with Aeromonas hydrophila bacteria.
Proximate Analysis of the Processing of Milkfish (Chanos chanos) Cookies with the Addition of Moringa Leaves (Moringa oleifera) as Complementary Food for Stunted Children and Toddlers in Nunukan Regency, North Kalimantan Siti Hajar; Harianti Harianti; Abdul Rahman; Renita Renita; Herlina Herlina
Jurnal Natur Indonesia Vol. 22 No. 2 (2024): October
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jnat.22.2.100-106

Abstract

The case of malnutrition in Indonesia is still one of the problems that the government must resolve. This is because, in recent years, cases of malnutrition among the Indonesian population, especially babies and children, have still occurred in several areas. The problem, especially stunting, in Indonesia is a national concern. The stunting reduction target for 2024 is 14%, while 2022 is still 24%. The Indonesian government has made various efforts to deal with stunting but has been unable to reduce it significantly. One of the efforts to prevent stunting is providing complementary foods for toddlers. Therefore, it is necessary to process food that has high nutritional content. One of the essential nutrients needed by the human body is protein. The urgency of this research is food processing in the form of cookies to prevent stunting, especially in Nunukan Regency, North Kalimantan Province. Processed cookies are very important for toddlers to consume to fulfill optimal nutritional requirements. This research aims to make or process cookies made from milkfish (Chanos chanos) with the addition of Moringa oleifera leaves to overcome the problem of malnutrition, especially stunting, especially in Nunukan Regency, North Kalimantan. This research aligns with the Regional Government's work program, the Regional School Children's Nutrition Program Plus (ProGasDa Plus). ProGasDa Plus is an effort to increase the nutritional intake given to students by providing nutritionally balanced additional food, accompanied by education on balanced nutrition, preventing worms, and providing supplements. Complementary foods will be analyzed proximately to see the nutritional content contained in the cookies.
Microplastic Content in Blood Cockles (Anadara granosa) from the Coastal Waters of Tanah Merah Meranti Islands, Riau Wulandari, Nirana Firda Caesaria; Zulkifli, Zulkifli; Amin, Bintal
Jurnal Natur Indonesia Vol. 22 No. 2 (2024): October
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jnat.22.2.107-113

Abstract

This research was conducted in December 2023 to determine the type and content of microplastics in blood cockles (Anadara granosa) by taking samples from the coastal waters of Tanah Merah Beach, Meranti Islands. The sampling location was based on the purposive sampling method divided into residential areas, fishing ports, and mangrove areas. Blood cockle samples from the three locations were selected for only large sizes (2.5-3.7cm). The water quality parameters at the sampling location were measured for temperature, salinity, and pH, indicating that the coastal waters of Tanah Merah Beach are still natural habitats for blood cockles. Three types of microplastics were found in blood cockles, namely fiber, film, and fragments, with an average abundance of 56.33 particles/ind (p>0.05). Further research is needed regarding size differences and relationships with environmental parameters.
Carbon Storage Potential in Seagrass in the Water of Poncan Gadang Island, Sibolga City, North Sumatra Province Sahrul Ramadhan; Zulkifli Zulkifli; Bintal Amin
Jurnal Natur Indonesia Vol. 22 No. 2 (2024): October
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jnat.22.2.114-121

Abstract

This research was conducted in February - March 2023 in Poncan Gadang Island, Sibolga City, North Sumatra Province. This study aimed to analyze the density of seagrass at each station in the research location, analyze the differences in biomass and carbon stocks in the above-ground biomass (Agb) and below-ground biomass (Bgb) parts between stations, the relationship between seagrass density and seagrass biomass and carbon stocks, and the carbon storage potential of seagrass in the waters of Poncan Gadang Island, Sibolga City, North Sumatra Province. The method used in this research was a survey method, which involved direct observations and measurements of samples in the field. The samples were then analyzed in the laboratory, and the results were described descriptively. The calculation results of carbon storage using the Loss on Ignition method for E. acoroides in Poncan Gadang Island are as follows: 14,836.07 gC/m2 at station I, 3,975.09 gC/m2 at station II, and 65,073.32 gC/m2 at station III, with a total carbon storage for E. acoroides species of 83,884.48 gC/m2. On the other hand, C. rotundata shows relatively lower results compared to E. acoroides, with 8,353.20 gC/m2 at station I, 12,056.76 gC/m2 at station II, and 7,235.53 gC/m2 at station III, with a total of 27,645.49 gC/m2. It can be concluded that the seagrass species E. acoroides has a larger biomass and carbon content compared to C.rotundata, thus making a significant contribution as a carbon sink in the study area.
Analysis of Nitrate, Phosphate, and Phytoplankton Abundance Content in Apar Waters Pariaman City West Sumatra Adini Dwi Ratna Hafnizar; Syahril Nedi; Elizal Elizal
Jurnal Natur Indonesia Vol. 22 No. 2 (2024): October
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jnat.22.2.122-128

Abstract

Apar Beach is one of the tourist destinations in North Pariaman District, Pariaman City, West Sumatra. These tourism activities can affect water quality. In addition to anthropogenic activities, several factors can affect the quality of these waters, among the compounds contained in Apar waters, namely the content of nitrates, phosphates, and the abundance of phytoplankton. This study aimed to determine nitrate and phosphate content, how phytoplankton abundance, and the relationship between nitrate, phosphate, and phytoplankton abundance. The survey method was used in this study. The results of this study showed nitrate content at station I of 0.82 mg/L. Station II is 0.78 mg/L and station III is 0.90 mg/L. while the phosphate content at station I is 0.72 mg/L. station II is 0.71 mg / l and station III is 0.73 mg/L. The average phytoplankton abundance at station I was 249.99 ind/l. Station II is 288.88 ind/l, and station III is 327.77 ind/L. The relationship between nitrate and phosphate concentration with phytoplankton abundance is obtained value (R2) 0.215, which means nitrate and phosphate affect phytoplankton abundance by 21.5%. In comparison, 78.5% is influenced by other factors, while the correlation coefficient value (r) of 0.464 means that nitrate and phosphate concentration with phytoplankton abundance has a moderate relationship.
Macrozoobenthos as a Bioindicator for Water Quality on the Coast of Padang City, West Sumatra Asma Husna Putri; Afrizal Tanjung; Efriyeldi Efriyeldi
Jurnal Natur Indonesia Vol. 22 No. 2 (2024): October
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jnat.22.2.129-135

Abstract

The research was carried out in January 2024 at the coastal waters of Padang City, West Sumatera Province. This research aims to determine the structure of the macrozoobenthos community as a bioindicator of water quality on the beaches of Padang City. Purposive sampling was used to get the sample, and then data was analyzed using FBI methods. (Family Biotic Index). The research results using FBI calculations show that Station 1 is in a good category with a score of 4.73, Station 2 is in the good category with a score of 4.71, and Station 3 is in the relatively poor category with a score of 6. Thus, the water quality based on macrozoobenthos as bioindicators of the coastal waters of Padang City, with an FBI value, was found to have an average of 5.14, which falls into the moderate category.
Habitat Characteristics and Abundance of Mangrove Crabs in the Mangrove Forest of Concong Dalam Village in Concong District Indragiri Hilir Regency David Aditya Simanjuntak; Syafruddin Nasution; Zulkifli Zulkifli
Jurnal Natur Indonesia Vol. 22 No. 2 (2024): October
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jnat.22.2.136-142

Abstract

This study was carried out in February 2024 in Concong Dalam Village, Concong District, Indragiri Hilir Regency, to know the habitat characteristics, types and distribution of abundance and size of mangrove crabs. This research uses a survey method by determining stations using purposive sampling consisting of 3 stations, where at each station, nine traps are installed with an area of around 628 m2/trap within 1 x 24 hours. Each trap is given chicken head bait in the morning at low tide, with two traps lifted at each high tide. A one-way ANOVA test was carried out to determine differences in abundance between stations. The results showed that the substrate was muddy with a moderate organic content of 12,82%. There were two species of mangrove crabs, including Scylla serrata and S.tranquebarica, where S. serrata dominated the population. The average abundance of mangrove crabs in the area was a value of 47,76 ind/ha, and there were no significant differences among stations. The size distribution of the species S. serrata (shell length 6-9,12 cm; shell width 9,08-13,31 cm; and weight 130-380 g), while in the species S. tranaubarica (shell length 6,52-6,98 cm; shell width 10,11-10,54 cm and weight 180 g). Small sizes dominated the population of mangrove crabs.

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