Jurnal Natural最新文献

Potential of frangipani flower (Plumeria sp.) as a source of antibacterial and antioxidants and its application in the pharmacological activities 佛甲草花（Plumeria sp.）作为抗菌剂和抗氧化剂来源的潜力及其在药理学活动中的应用

Jurnal Natural Pub Date : 2024-07-14 DOI: 10.24815/jn.v24i2.29356

K. P. Candra, Gisti Malinda Lestari, Sulistyo Prabowo, Yuliani Yuliani, M. Marwati, Maulida Rachmawati

引用次数: 0

Preparation and characterization of physical properties of molded pulp from empty fruit bunches of oil palm 油棕空果串模塑浆的制备和物理性质表征

Jurnal Natural Pub Date : 2024-07-14 DOI: 10.24815/jn.v24i2.37444

Rosliana Lubis, Riyanto Riyanto, Saisa Saisa

{"title":"Preparation and characterization of physical properties of molded pulp from empty fruit bunches of oil palm","authors":"Rosliana Lubis, Riyanto Riyanto, Saisa Saisa","doi":"10.24815/jn.v24i2.37444","DOIUrl":"https://doi.org/10.24815/jn.v24i2.37444","url":null,"abstract":"This research aims to determine the impact of pretreatment on empty fruit bunches (EFB) of palm oil fibers before the pulping process on the quality of the molded pulp produced. The study includes EFB fiber pretreatment processes, pulp production, pulp molding, physical characteristic analysis, and molded pulp performance evaluation. The pulp production process involves acid-base hydrolysis reactions. The produced molded pulp is done manually. Characterization of the molded pulp includes measurements of paper grammage, thickness, density, and moisture content. The characteristics of pulp produced from pretreated EFB fibers are as follows: an average grammage value of 415.48 g/m², paper thickness of 1.53 mm, water absorption capacity of 13.33-33.33%, density of paper of 0,026 x 106 - 0,027 x 106 g/m3, and a smooth surface morphology. Meanwhile, the characteristics of pulp produced from without pretreatment EFB fibers include an average grammage value of 372.18 g/m², paper thickness of 0.77 mm, water absorption capacity of 20.34-43.21%, density of paper of 0,004 x 106 - 0,008 x 106 g/m3, and a rough surface morphology due to pores on the fiber surface.","PeriodicalId":32986,"journal":{"name":"Jurnal Natural","volume":" 7","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141833679","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Oral glucose tolerance assay of extract from Mangifera foetida l. and Pandanus amaryllifolius roxb. leaves Mangifera foetida l.和 Pandanus amaryllifolius roxb.叶提取物的口服葡萄糖耐量试验

Jurnal Natural Pub Date : 2024-02-23 DOI: 10.24815/jn.v24i1.30982

Y. Retnaningtyas, Fransiska Maria Cristianty, Nia Kristiningrum, Pramudia Wardani

{"title":"Oral glucose tolerance assay of extract from Mangifera foetida l. and Pandanus amaryllifolius roxb. leaves","authors":"Y. Retnaningtyas, Fransiska Maria Cristianty, Nia Kristiningrum, Pramudia Wardani","doi":"10.24815/jn.v24i1.30982","DOIUrl":"https://doi.org/10.24815/jn.v24i1.30982","url":null,"abstract":"This study examines the potential antidiabetic activity of a combination of Mangifera foetida L. and Pandanus amaryllifolius Roxb. leaves. Mangifera leaves contain a compound called mangiferin, which acts as an antidiabetic and antioxidant. On the other hand, Pandanus leaves, are rich in terpenoids and steroids that also possess anti-diabetic effects. An Oral Glucose Tolerance Test (OGTT) was conducted on male mice of the Babl/c strain to assess the antidiabetic effects. The test involved administering a combination of ethanolic leaf extracts from Mangifera foetida L. and Pandanus amaryllifolius Roxb. in a 1:1 ratio. The study followed a pre-test design with a control group, comprising six treatment groups, each consisting of four male mice. The groups were described as follows: Group 1 was served as the normal group without any treatment. Groups II-IV received single extracts or combinations of extracts at doses of 62.5 mg/200g BW, 125 mg/200g BW, and 250 mg/200g BW. Group V acted as the positive control and was given oral glucose and glibenclamide at a dose of 0.09 mg/200g BW. Group VI was served as the negative control, receiving oral glucose and distilled water. The group that exhibited the highest percentage of decreased blood sugar levels was the one given oral glucose at a dose of 0.078g/20g BW of mice, along with the combination of Mangifera foetida L. and Pandanus amaryllifolius Roxb. leaves extract (1:1) at a dose of 35 mg/20g BW. This group demonstrated a decrease of 71.985 ± 4.858 in blood glucose levels. The ANOVA analysis confirmed that the percentage decrease in blood sugar levels was significantly different from the positive control, indicating a higher effectiveness of the combination treatment in reducing blood glucose levels than the positive control.","PeriodicalId":32986,"journal":{"name":"Jurnal Natural","volume":"26 6","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140435817","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Genetic diversity of Ulva lactuca from the intertidal zone in Ulee Lheue beach Aceh, Indonesia 印度尼西亚亚齐 Ulee Lheue 海滩潮间带乳莼的遗传多样性

Jurnal Natural Pub Date : 2024-02-22 DOI: 10.24815/jn.v24i1.33972

Rahmah Hayati, Fawwa Rahly

{"title":"Genetic diversity of Ulva lactuca from the intertidal zone in Ulee Lheue beach Aceh, Indonesia","authors":"Rahmah Hayati, Fawwa Rahly","doi":"10.24815/jn.v24i1.33972","DOIUrl":"https://doi.org/10.24815/jn.v24i1.33972","url":null,"abstract":"Ulee Lheue Beach in Banda Aceh was developed for tourism. The macroalgae and seaweed species found in this area have been widespread but never exploited. Among these species is the green seaweed, Ulva lactuca, commonly known as sea lettuce. The physiological variations and genetic features of the seaweed can be attributed to the variations in the coastal environment. This study aims to describe the molecular identity of the genetic diversity of U. lactuca from the intertidal zone at Ulee Lheue Beach. The development of molecular biotechnology has enabled identification the gene expression through genomic DNA to PCR amplification. Genetic distance was determined using UPGMA. The results from 600-bp fragments were analyze the genetic diversity. A total of 15 (31%) expression identified as polymorphic (0.500). Heterozygosity (He) and allelic differential (Na) diversity were found of 1.500–3.000. The highest PIC was observed in the rbcL1, with a correlation between subpopulations of 0.459. PCR amplification using the degenerate primer rbcL1 produced fragments ranging from 300 to 460 bp, whereas the expression of UL2 was detected at 448 and 500 bp using the rbcL2 primer. The phylogenetic identify are shown two (2) clusters. The populations of UL1, UL3, and UL4 were found a close relationship. Furthermore, the UL1 and UL2 populations were further divided into distinct clusters but related to the main branch of UL3. Based on this research, the concern of U. lactuca species for industrial and biotechnology destinations, we can describe a suitable method for obtaining he genetic distances between species.","PeriodicalId":32986,"journal":{"name":"Jurnal Natural","volume":"12 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140438654","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Identification ratio of Si/Ti and Ca/Ti content by X-Ray Fluorescence in tsunami soil samples 利用 X 射线荧光鉴定海啸土壤样本中 Si/Ti 和 Ca/Ti 的含量比

Jurnal Natural Pub Date : 2024-02-22 DOI: 10.24815/jn.v24i1.35429

K. Lahna, R. Mitaphonna, Muliadi Ramli*, Faliqul Isbah, Elin Yusibani, Fauzi Fauzi, Nazlina Ismail, Nasrullah Idrs

{"title":"Identification ratio of Si/Ti and Ca/Ti content by X-Ray Fluorescence in tsunami soil samples","authors":"K. Lahna, R. Mitaphonna, Muliadi Ramli*, Faliqul Isbah, Elin Yusibani, Fauzi Fauzi, Nazlina Ismail, Nasrullah Idrs","doi":"10.24815/jn.v24i1.35429","DOIUrl":"https://doi.org/10.24815/jn.v24i1.35429","url":null,"abstract":"Earthquakes and tsunamis natural disasters have repeatedly occurred on the coast of Aceh province, which lies between the confluence of two plates. The tsunami deposits in this area can provide important information regarding the reconstruction of marine attacks by past earthquakes and tsunamis. In general, tsunami deposits can be identified based on their geological, sedimentological, paleontological, and geochemical characteristics. In our research work, spectrometry X-ray fluorescence (XRF) has been utilized to investigate the geochemical signatures of tsunami-affected soil samples in Aceh province at three tsunami-impacted areas, namely Aceh Besar regency, Banda Aceh City, and Aceh Barat regency. The sampling point is located about a kilometer from the coastal line. Our findings indicate that tsunami-affected soils in Aceh Province after 10 years struck by tsunami contain terrestrial markers such as Fe and Ti, carbonate markers (Mg, Ca), and heavy metals elements (Cr, Ni, Cu, Zn, and Sr). On the other hand, in our study, the concentration ratios of several elements such as Si/Ti and Ca/Ti seem most suitable as a chemical signature for differentiating environmental conditions such as the 2004 Indian Ocean tsunami event. It could be noticed that geochemical analysis by XRF can be applied to characterize the tsunami-affected soils in several coastal areas of Aceh province.","PeriodicalId":32986,"journal":{"name":"Jurnal Natural","volume":"20 22","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140442125","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

On the dynamics of spring-pendulum system: an overview of configuration space and phase space 论弹簧摆系统的动力学：构型空间和相空间概述

Jurnal Natural Pub Date : 2024-02-22 DOI: 10.24815/jn.v24i1.33247

Siti Wahyuni, N. W. Rini, J. Saefan

引用次数: 0

Factors affecting the happiness level in Southeast Asia countries with a multilevel approach 用多层次方法分析影响东南亚国家幸福水平的因素

Jurnal Natural Pub Date : 2024-02-22 DOI: 10.24815/jn.v24i1.36076

Oktiva Rahmawati Dhewi, Kismiantini Kismiantini

引用次数: 0

Total phenolic and flavonoids content, and antioxidant activity of kratom (Mitragyna speciosa Korth.) leaf ethanol extract 桔梗（Mitragyna speciosa Korth.）叶乙醇提取物的总酚和类黄酮含量以及抗氧化活性

Jurnal Natural Pub Date : 2024-02-22 DOI: 10.24815/jn.v24i1.33125

M. Masriani, Purnama Melania, R. Muharini, A. Alimuddin, Rody Putra Sartika

{"title":"Total phenolic and flavonoids content, and antioxidant activity of kratom (Mitragyna speciosa Korth.) leaf ethanol extract","authors":"M. Masriani, Purnama Melania, R. Muharini, A. Alimuddin, Rody Putra Sartika","doi":"10.24815/jn.v24i1.33125","DOIUrl":"https://doi.org/10.24815/jn.v24i1.33125","url":null,"abstract":"This study aims to determine and compare antioxidant activity, total phenolics, flavonoids, and the relationship of phenolic and total flavonoids with the antioxidant activity of the three kratom variants. The ethanol extract of the third variant of kratom leaves was obtained by maceration. Through the antioxidant activity test using DPPH method, all three extracts showed strong antioxidant activity with IC50 values of 26.39, 30.25, and 30.59 μg/mL. The relationship of total phenolics and flavonoids with antioxidant activity was determined by the Pearson correlation test. Examination of total phenolic content using the Folin-Ciocalteu method with successive results for green, red, and white kratom are 6.11, 8.67, and 9.09 mg GAE/g extract. Examination of total flavonoid content using the colorimetric method for green, red, and white kratom were 0.86, 0.68, and 1.13 mg QE/g extract, respectively. The total phenolic content and antioxidant activity showed a correlation coefficient value of -0.32 (P0.05), and the total flavonoid content to antioxidant activity showed a correlation coefficient value of 0.81 (P0.05). Thus, all three variants of kratom have potency as natural antioxidants, but their total phenolic and flavonoid content does not influence their antioxidant activity.","PeriodicalId":32986,"journal":{"name":"Jurnal Natural","volume":"18 11","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140439060","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The difference in leaves production, protein and calcium of Moringa oleifera under modification planting media, application of PGR and nitrogen 在改变种植介质、施用 PGR 和氮的条件下油辣木的叶片产量、蛋白质和钙的差异

Jurnal Natural Pub Date : 2024-02-22 DOI: 10.24815/jn.v24i1.32403

R. Sulistiani, Mukhtar Yusuf, Syaiful Amri Saragih

{"title":"The difference in leaves production, protein and calcium of Moringa oleifera under modification planting media, application of PGR and nitrogen","authors":"R. Sulistiani, Mukhtar Yusuf, Syaiful Amri Saragih","doi":"10.24815/jn.v24i1.32403","DOIUrl":"https://doi.org/10.24815/jn.v24i1.32403","url":null,"abstract":"Moringa has many ingredients of nutrients that are beneficial for food sources and nutrients that have not been widely cultivated. The nutritional content, benefits and high demand for Moringa abroad will open large opportunities for exporting Moringa flour. Foods full of nutrition will support the maintenance of good public health. For this reason, it is necessary to study and research cultivation techniques that produce high Moringa leaves and can be available sustainably. Production of Moringa leaves as a source of secondary metabolites can be increased by modifying the planting media and applying Plant Growth Regulator (PGR) and Nitrogen. The study used Split Split Plot Design with the main plot immersion by PGR, consisting of 3 types, namely: G1 (Fresh water), G2 (Coconut water), and G3 (GA3). The subplot was the treatment of planting media with two types: M₁ (soil: sand: manure = 1:1:2); M₂ (soil: sand: manure = 1:2:1). The sub subplots were N (urea) fertilizer, with four levels: N0 (0 g/plant); N1 (5 g/plant); N₂ (10 g/plant); and N₃ (15 g/plant). Each treatment combination goes over three times. The agronomic parameters observed were plant height, the number of leaves, fresh crop weight, and root volume, and the biochemical parameters observed were chlorophyll, protein, and calcium levels. The composition of the planting media caused significant differences in plant height at 4, 6, and 10 weeks after planting (WAP), the number of leaves at 4 WAP, and root length at 10 WAP. Growth Regulators significantly affected plant height at 4, 6, and 10 WAP, the number of leaves at 4 WAP, and root length at harvest. Nitrogen fertilization caused significant differences in plant height at 4, 6, and 10 WAP, volume, and root length at harvest (10 WAP). The combination of Planting media, PGR, and Nitrogen treatments caused significant differences in plant height at 4, 6, and 10 WAP and the number of leaves at 6 WAP. Laboratory analysis in this study showed high calcium and protein in Moringa leaves.","PeriodicalId":32986,"journal":{"name":"Jurnal Natural","volume":"17 6","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140439396","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Phytochemical screening and antibacterial activity testing of n-hexane extract from Barringtonia asiatica seeds 巴林藤种子正己烷提取物的植物化学筛选和抗菌活性测试

Jurnal Natural Pub Date : 2024-02-22 DOI: 10.24815/jn.v24i1.32597

Nurhaida Nurhaida, M. Murniana, Jainursumarmi Safrullah Atanta

{"title":"Phytochemical screening and antibacterial activity testing of n-hexane extract from Barringtonia asiatica seeds","authors":"Nurhaida Nurhaida, M. Murniana, Jainursumarmi Safrullah Atanta","doi":"10.24815/jn.v24i1.32597","DOIUrl":"https://doi.org/10.24815/jn.v24i1.32597","url":null,"abstract":"Barringtonia asiatica, a marine plant belonging to the Lecythidaceae family, exhibits bioactivity in all parts of the plant. In the Simeulue region, the seeds of this plant are used for fish trapping. The polar extracts of B. asiatica seeds has shown antibacterial activity, but the non-polar extracts has not been studied yet. Therefore, this study aimed to determine the secondary metabolites of B. asiatica using a non-polar solvent (n-hexane) and evaluate its activity against Gram-positive and Gram-negative bacteria. The extraction method employed using soxhlet extraction, and the antibacterial activity was determined using the Kirby-Bauer method. The presence of secondary metabolites in the B. asiatica seed extract was assessed using phytochemical tests, and its chemical composition was analyzed using Gas Chromatography Mass Spectrophotometry (GC-MS). The yield of n-hexane extract from B. asiatica seeds was 1.7%, and the phytochemical analysis revealed that the B. asiatica seed’s n-hexane extract contains only terpenoids compounds. The B. asistica seed’s n-hexane extract at concentration of 10% (w/v) showed the highest zone of inhibition against Staphylococcus aureus (9.3 mm) followed by Escherichia coli (9,9 mm). The GC-MS analysis showed that B. asiatica seed’s n-hexane extract contains Guaiene, Guaiene, Ledene, 9,12-Octadecadienoic acid, and Ethyl linoleate. Based on these findings, it can be concluded that B. asiatica seed's n-hexane extract exhibited antibacterial activity against S. aureus and E. coli.","PeriodicalId":32986,"journal":{"name":"Jurnal Natural","volume":"40 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140440250","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0