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Sains Natural: Journal of Biology and Chemistry
Published by Universitas Nusa Bangsa
ISSN : 20863446     EISSN : 2621508X     DOI : https://doi.org/10.31938/jsn
Core Subject : Science, Agriculture, Engineering,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry
Jurnal Sains Natural is a peer-reviewed, open access journal that publishes original research articles, review articles, as well as short communication with the objectives to explore the knowledge about natural sciences. This journal incorporates not only all branches of chemistry and biology, but also sub-disciplines like Biochemistry, Polymer, Agricultural chemistry, Environmental chemistry, etc.
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ilmu Pertanian dan Biologi (Lain-Lain)
Articles 250 Documents
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Vegetation Analysis of Sapling and Understorey Invaded by Invasive Alien Species (IAS) Bellucia pentamera Naudin in Lembah Harau Sanctuary Solfiyeni; Hafizhah Rahmayani; Winda Gusmawarni
JURNAL SAINS NATURAL Vol. 13 No. 3 (2023): Sains Natural
Publisher : Universitas Nusa Bangsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31938/jsn.v13i3.455

Abstract

Bellucia pentamera Naudin, the proliferation across Indonesia, notably in Sumatra, has the potential to lessen biodiversity there. On the other hand, little is known about the effects of its invasion on plants and the ecology. The objective of this study was to evaluate the genetic makeup and structural characteristics of saplings and the understorey vegetation in the B. pentamera-infested Lembah Harau sanctuary forest zone. Vegetation analysis was conducted in the sanctuary Lembah harau forest with two levels of dominance: Station 1 was lightly invaded by B. pentamera, and Station 2 was heavily invaded by B. pentamera. Purposive sampling is used in the plot method. The findings found that the number of sapling species at stations 1 and 2 was 18 and seven, respectively. Station 1 had 38 species of understorey, while station 2 had 26. The Melastomataceae family dominated the sapling strata and understorey at stations 1 and 2. The B. pentamera species has the highest Important Value Index sapling at Stations 1 and 2. While in the understorey, station 1 has the highest Importance Value Index (24.45%) and the highest B. pentamera species (59.10%). Both stations have a moderate Diversity Index (H') for sapling and understorey levels. The Community Similarity Index (IS) of sapling and plant levels at stations 1 and 2 is relatively low.
Effect of Rhizobium Inoculation and Phosphate Fertilizer on The Growth of Soybean (Glycine max L) Grobogan Variety Muhamad Nasir; Endang Tadjudin; Dwi Purnomo; Amran Jaenudin; Maryuliyanna
JURNAL SAINS NATURAL Vol. 13 No. 3 (2023): Sains Natural
Publisher : Universitas Nusa Bangsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31938/jsn.v13i3.462

Abstract

Various strategic efforts to increase food production continue to be made in an effort to achieve self-sufficiency and food security. Soybean is a national strategic commodity to support government programs in an effort to increase production with the aim of achieving self-sufficiency. The purpose of this study was to determine the effect of the combination of phosphate fertilizer and rhizobium biofertilizer on the growth of soybean (Glycine max L) Grobogan variety. The research was conducted from June to September 2022 at the Ma'had Al Zaytun Agricultural Complex, Indramayu Regency. The method used is the method of randomized block design with a combination pattern. There were 9 treatment combinations of SP-36 phosphate fertilizer and rhizobium inoculation. SP-36 Fertilizer consists of 3 levels, namely 100, 150 and 200 kg/ha and Rhizobium with 3 levels, namely 0.05, 0.10 and 0.15 g/planting hole. Each combination was repeated three times so that there were 27 trial plots. Each experimental plot is 6 m2. The observed data were processed using analysis of variance and the Scott-Knott test. The results showed.that the combination-of SP-36 Phosphate fertilizer-and Rhizobium inoculation had-a significant effect on all observations both plant height, number of trifoliate leaves, number of branches, root volume.
Characterization of Cellulose Acetate Membrane from Nutmeg Shells Bhayu Gita Bhernama; Nurhayati; Surya Adi Saputra; Jihan Amalia
JURNAL SAINS NATURAL Vol. 13 No. 3 (2023): Sains Natural
Publisher : Universitas Nusa Bangsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31938/jsn.v13i3.465

Abstract

The membrane is a semipermeable selective thin layer that is used as a barrier between two phases, the feed phase and the permeate phase. Several studies have been carried out on the synthesis of cellulose acetate membranes, but research on cellulose acetate membranes from nutmeg shell waste is still rare. Therefore, the characterization of cellulose acetate membrane from a nutmeg shell was conducted. This study aims to characterize cellulose acetate membranes from nutmeg shells using the phase inversion method with variations in the weight of cellulose acetate 0.1 and 0.2 grams. The plasticizers used are polyvinyl chloride (PVC) and dope solution. Characterization was carried out in thickness, tensile strength, morphology by Scanning Electron Microscope (SEM), functional groups, membrane permeability, rejection value, degree of swelling, and membrane standards. The results obtained for good morphological characterization were found in membranes number 2 and 4, the value of rejection and flux on membrane number 2 (t = 1 minute) was 31.1%, and the flux value was 4.6 L/m2.h for membrane number 3 (t) (t = 3 minutes) 31.6% and the flux value was 0.3 L/m2 per hour. The good thickness and strength of the membrane are found in the number 1 membrane, with a thickness of 0.11 mm and tensile strength of 3.06 MPa. Swelling degree and suitable membranes are found in membrane number 1, 59.52%, and 32.2%, respectively. The functional groups contained in the FTIR spectrum include the C – H group, which is located in the wave number range of 2959.79 cm-1, C = O is located at 1722.06 cm-1, C –O acetyl is located at 1271.04 cm-1 and C – O stretching is located at 1072.13 cm-1, and the presence of a PVC group is located at 742.12 cm-1. The conclusion is that membrane number 1 is good for further application.
Diversity of Endophytic Fungi from Lime Plants (Citrus aurantifolia, Swingle) Riza Umami; Ummi Hiras Habisukan; Kurratul A’ini
JURNAL SAINS NATURAL Vol. 13 No. 3 (2023): Sains Natural
Publisher : Universitas Nusa Bangsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31938/jsn.v13i3.500

Abstract

Lime (Citrus aurantifolia, Swingle) is a plant with medicinal properties. This plant is needed on a large scale to produce biomass. Medicinal plants with decreasing numbers and populations can be developed through scientific technology by isolating endophytic fungi. Endophytic fungi are microorganisms that are found in plant tissues without causing damage to their host plants. This study uses the exploratory method, namely searching and finding. The purpose of this study was to identify endophytic fungi in lime plants. The study's results obtained ten isolates of endophytic fungi from different plant organs (leaves, stems, bark, roots, fruits). Endophytic fungi were identified through macroscopic and microscopic characteristics and then compared with an identification book of endophytic fungi. Eight genera were found, including Beltrania and Nigrospora on leaves, Fusarium and Chaetomium on fruit, Pythium on stems and bark, Paecilomyces on bark, Mucor and Mortierella on roots.
The Utilization and Extraction Method of Nanocellulose: A Review Farrah Fadhillah Hanum; Aster Rahayu; Nafira Alfi Zaini Amrillah; Yoga Nawaki Helmi Mustafa
JURNAL SAINS NATURAL Vol. 13 No. 3 (2023): Sains Natural
Publisher : Universitas Nusa Bangsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31938/jsn.v13i3.565

Abstract

Currently, the use of nanocellulose is very broad in various fields, such as pharmaceuticals, cosmetics, and electronics industries. In its development, this nano-sized cellulose is widely used as a reinforcement nanocomposite nanofiller. Nanocellulose has several advantages, including its large surface area, very lightweight, easy to shape, ability to break through the performance limits of conventional materials, and having a high economic value. Nanotechnology develops based on new properties produced by nanomaterials as advanced materials. Therefore, the factor of the extraction process method must be considered to produce nanocellulose that has good quality and large quantity. Nanocellulose extraction can be accomplished in a variety of ways depending on the raw material but is generally done through a combination of chemical, mechanical, and biological treatments.
Trade Group Anatomy Structure and Usage of Nyatoh Wood in The Genus of Palaquium Kustin Bintani Meiganati; Widya Gumilar Yuldareza Harta; Ina Lidiawati; Kridianto
JURNAL SAINS NATURAL Vol. 13 No. 3 (2023): Sains Natural
Publisher : Universitas Nusa Bangsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31938/jsn.v13i3.575

Abstract

Based on the classification of trade timber species based on the Decree of the Ministry of Forestry No. 163 of 2003, wood species originating from the genera Palaquium, Payena, and Ganua/Madhuca are categorized as Nyatoh wood. The three genera most commonly found in the Indonesian timber trade are wood from the genus Palaquium. The utilization of wood and its economic value can be determined by looking at the characteristics of its anatomical structure. Therefore, it is necessary to observe the anatomical structure of the genus Palaquium wood. Observation of the anatomical structure of wood using the book "Microscopic Characteristics for Identification of Broadleaf Wood" by the Committee of the International Association of Wood Anatomists showed that Nyatoh wood has large fiber sizes with thin walls. In addition, there are prismatic crystals in the parenchyma canals. The prismatic crystal is a latex known as gutta-percha, which can be processed into a good electrical insulator. Another use is for raw materials for pencil rods and veneer raw materials. In assessing the beauty of wood, Nyatoh wood can go up to the commercial beautiful class I, according to the trading timber group assessment system developed by the Forest Products Research and Development Center.
The Extract of Bellucia pentamera Naudin Leaves as Bioherbicide of The Chromolaena odorata (L.) R.M.King & H.Rob. Germination and Growth Lidia Gusvita Nasra; Solfiyeni; Chairul
JURNAL SAINS NATURAL Vol. 13 No. 4 (2023): Sains Natural
Publisher : Universitas Nusa Bangsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31938/jsn.v13i4.449

Abstract

Threats that can cause loss of biodiversity include the presence of invasive foreign plants. One of these invasive plants is from the Melastomataceae family with the species Bellucia pentamera Naudin, and this species can trigger a decline in ecosystem diversity. B. pentamera contains a chemical compound that can be used as an herbicide, phenolic, and flavonoid compounds, which can retard the growth of other plants that surround them like noxious weeds. Bioherbicides need to be used as an environmentally friendly alternative drug control method to overcome and reduce their adverse effects. This research was carried out to determine the impact and concentration of administering B. pentamera leaf extract on the germination and growth of Chromolaena odorata. The study used experimental methods with a completely randomized design (CRD) with six variations consisting of treatment of 0, 10, 15, 20, 25, and 30% with a four-time repetition. The research results showed the effect of giving greater concentrations of B. pentamera leaf extract, causing the germination and growth of C. odorata to be increasingly hampered. Providing extracts with concentrations of 20% and 25% are effective for inhibiting the germination and growth of C. odorata.
Effectiveness of Lemongrass Extract (Cymbopogon citratus) in Hand Sanitizer Formulation Against Bacteria Risma Aprilia; Nurlela Nurlela; Devy Susanty
JURNAL SAINS NATURAL Vol. 13 No. 4 (2023): Sains Natural
Publisher : Universitas Nusa Bangsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31938/jsn.v13i4.480

Abstract

Alcohol as an antiseptic ingredient in hand sanitizers is claimed to be less safe for health because alcohol causes dry skin and irritation to the skin with repeated use. Natural-based antiseptics are generally relatively safe. The plant that has the potential to be developed as an antiseptic is lemongrass (Cymbopogon citratus) because it contains citronellal, geraniol, and citronellol compounds. The aim of the study was to determine the effectiveness of lemongrass in the formulation of hand sanitizer gel through antibacterial and stability tests, including organoleptic, pH, and homogeneity. The results showed that a concentration of 10% w/v was the most active of using lemongrass extract in the hand sanitizer gel formulation. Based on the antibacterial test using the disc diffusion method, lemongrass extract (10%) had moderate activity against Staphylococcus aureus and Escherichia coli bacteria. Meanwhile, a hand sanitizer with 10% lemongrass extract has strong antibacterial activity against S. aureus and E. coli. The stability test results showed that the hand sanitizer has a turbid colour, characteristic lemongrass odour, semi-solid form, pH 6, and is homogeneous. However, the antibacterial activity of the hand sanitizer gel decreased with the length of storage time. Further research is needed to optimize the hand sanitizer formulation.
Adsorption of Remazol Brilliant Blue R Dye Using Activated Carbon from Emty Palm Oil Bunches Denny Aris Setiawan; Sirajuddin; Ricky Marthin De Tulus Wanwol
JURNAL SAINS NATURAL Vol. 13 No. 4 (2023): Sains Natural
Publisher : Universitas Nusa Bangsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31938/jsn.v13i4.527

Abstract

Various types of dyes are used in the textile industry, including Remazol Brilliant Blue R dye. Remazol dye is a type of anthraquinone which is very difficult to remove if it is contaminated in the environment. One method of dealing with dyes that pollute the environment is adsorption using activated carbon. The material for activated carbon has the most potential to come from the palm oil industry, namely empty palm fruit bunches because they are widely available and have economic value. This study aimed to determine the effect of varying exposure time between activated carbon made from empty palm fruit bunches and textile dye Remazol Brilliant Blue R on decreasing the concentration of dye Remazol Brilliant Blue R. The adsorption process was carried out with the ratio of adsorbent mass: dye volume w/v (0.1:15) and varying the contact times of 20, 40, 60, 80, 100 and 120 minutes. The initial concentration of textile substances was 23.2121 mg/L and was contacted between Remazol Brilliant Blue R textile substances with adsorbents using a shaker. Analysis of adsorption results using a UV – Vis instrument with a wavelength of 670 nm for Remazol Brilliant Blue R dye. The results showed that the best adsorption conditions was 60 minute contact time, with a removal percentage of 87.23% with an adsorption capacity of 3.0373 mg/g. The adsorption of Remazol Brilliant Blue R follows the Langmuir adsorption equation model with an R2 of 0.9997.
Biodiesel from Avocado Seed Oil with CaO and CaO Super Basa Catalyst from Egg Shell Waste Paqih Choerunnas; Lany Nurhayati; Devy Susanty; Gladys Ayu Paramita Kusumah Wardhani
JURNAL SAINS NATURAL Vol. 14 No. 1 (2024): Sains Natural
Publisher : Universitas Nusa Bangsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31938/jsn.v14i1.591

Abstract

One waste that can be used as raw material for biodiesel is avocado seeds. Generally, biodiesel from avocado seed oil is synthesized using a homogeneous base catalyst, NaOH or KOH. However, the yield of Free Fatty Acids (FFA) is still low, so it is necessary to make biodiesel using heterogeneous base catalysts such as calcium oxide (CaO) and super base CaO from eggshell waste. Avocado seed oil biodiesel was synthesized using the method of transesterification with a ratio of 1:6, and a super base CaO/CaO catalyst of 1.5% (w/w) of the weight of avocado seed oil was added. The use of the CaO catalyst produced a Fatty Acid Methyl Ester (FAME) of 98.21% with a biodiesel yield of 73.77%, while the use of a super base CaO catalyst produced a FAME of 98.47% with a biodiesel yield of 74.50%. Characterization of biodiesel using FTIR shows the presence of methyl, ether, alcohol, carbonyl, and ester functional groups (C=O and C-O bonds), which are characteristics of the resulting biodiesel trans-esterification. Based on the yield and physical and chemical properties, the avocado seed oil biodiesel produced is better using the super base CaO catalyst than the CaO catalyst.

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