scholarly journals Controls on foliar aluminium accumulation among populations of the tropical shrub Melastoma malabathricum L. (Melastomataceae)

2018 ◽  
Author(s):  
M Khairil ◽  
David F R P Burslem
Keyword(s):  
Melastoma Malabathricum ◽  
Aluminium Accumulation

Penerapan Teknologi Seed Bank Sebagai Upaya Rehabilitasi Kawasan Ekosistem Leuser Pasca Kerusakan Akibat Pembukaan Perkebunan Kelapa Sawit

2019 ◽  
Vol 4 (1) ◽  
pp. 1
Author(s):  
Sri Jayanthi, Zulfan Arico
Keyword(s):  
Seed Bank ◽  
Melastoma Malabathricum ◽  
Cocculus Hirsutus

Penelitian ini bertujuan untuk mengkaji keanekaragaman jenis tumbuhan penyusun vegatasi kawasan ekosistem Taman Nasional Gunung Leuser yang mengalami kerusakan akibat pembukaan perkebunan kelapa sawit dengan menggunakan teknologi seed bank. Waktu penelitian berlangsung mulai bulan April sampai September 2018. Pengambilan sampel tanah menggunakan metode jalur. Pada jalur pengamatan diambil cuplikan sampel tanah sesuai dengan kondisi tutupan tajuk dan kerapatan vegetasi yang dibagi menjadi 3 titik yaitu jarang, sedang dan rapat. Kemudian masing-masing titik diambil sampel tanah secara random  sebanyak 3 kali ulangan dengan menggunakan kotak besi berukuran 25 x 25 cm sedalam: (i) 0-5 cm, (ii) 5-10 cm, (iii) 10-15 cm. Tanah kemudian dimasukkan kedalam kantong plastik dengan menggunakan cangkul kemudian diberi label.ampel tanah kemudian disimpan di dalam rumah kaca untuk selanjutnya dilakukan uji perkecambahan. Informasi tentang cadangan biji di dalam tanah penting dalam studi ekologi komunitas karena dapat menggambarkan vegetasi yang ada di atasnya dan mengetahui potensi jenis tanaman lain yang akan tumbuh di habitat tersebut. Dari hasil penelitian ditemukan 13 famili dengan 18 jenis yang tumbuh pada bak-bak penelitian yang terdiri dari 7 jenis pohon dan 11 jenis golongan tumbuhan bawah dengan jumlah seluruhnya adalah 366 spesies. Dari hasil kekayaan jenis kecambah yang tumbuh pada bak pengamatan didapatkan nilai KR, FR dan INP tertinggi terdapat pada jenis Melastoma malabathricum dengan nilai KR (63,115 %), nilai FR (32,692 %) dan INP (95,807 %). Sedangkan untuk nilai terendah terdapat pada jenis Cocculus hirsutus dengan nilai KR (0,273 %), FR (0,962 %) dan INP (1,235 %). Jenis dan jumlah kecambah sangat dipengaruhi oleh ketinggian tempat dan tidak dipengaruhi oleh kedalaman tanah. Jumlah biji terbanyak yang ditemukan di lantai hutan adalah jenis Macaranga gigantea yaitu 28 biji dan jumlah biji terendah yang ditemukan adalah jenis Villebrunea rubescens, yaitu sebanyak 7 biji.

Histological and proteome analyses of Microbacterium foliorum-mediated decrease in arsenic toxicity in Melastoma malabathricum

3 Biotech ◽  
2021 ◽  
Vol 11 (7) ◽  
Author(s):  
Sadiya Alka ◽  
Shafinaz Shahir ◽  
Norahim Ibrahim ◽  
Norasfaliza Rahmad ◽  
Norhazalina Haliba ◽  
...  
Keyword(s):  
Arsenic Toxicity ◽  
Melastoma Malabathricum

Alzheimer's-disease-like changes in tau protein processing: association with aluminium accumulation in brains of renal dialysis patients

The Lancet ◽  
1994 ◽  
Vol 343 (8904) ◽  
pp. 993-997 ◽  
Author(s):  
C.R. Harrington ◽  
C.M. Wischik ◽  
F.K. McArthur ◽  
G.A. Taylor ◽  
J.A. Edwardson ◽  
...  
Keyword(s):  
Alzheimer’S Disease ◽  
Alzheimer's Disease ◽  
Tau Protein ◽  
Renal Dialysis ◽  
Protein Processing ◽  
Dialysis Patients ◽  
Aluminium Accumulation

scholarly journals Characterization and Treatment of Titanium Dioxide via Ultrasonic Process withMelastoma malabathricumas Sustainable Sensitizer for Photovoltaic Solar Cell

2013 ◽  
Vol 2013 ◽  
pp. 1-10 ◽  
Author(s):  
Anika Zafiah M. Rus ◽  
Nur Munirah Abdullah ◽  
M. F. L. Abdullah
Keyword(s):  
Solar Cell ◽  
Metal Oxide ◽  
Short Circuit ◽  
Open Circuit ◽  
Hydroxyl Groups ◽  
High Porosity ◽  
Enhanced Absorption ◽  
Melastoma Malabathricum ◽  
Atomic Force ◽  
Ultrasonic Process

Generation from the existing commercial devices costs about ten times more than the conventional methods. Therefore, this paper presents a thin-film dyed solar cell (DSC) of natural dyes fromMelastoma malabathricumfruits which consist of the carbonyl and hydroxyl groups of anthocyanin molecule that influences the performance of photosensitized effect due to its bound on the surface of filler. Experimental results comparing engineering grade (>99% purity) of metal oxide; U1 and U2 with treated metal oxide; U3 and U4 using ultrasonic process, which is to break the particle agglomeration from 0.37 μm down to 0.15 μm; this treatment led to a more “sponge-like” consistency with high porosity, enabling enhanced absorption and anchorage of the dye sensitizer. The microstructures of metal oxide were observed using Field Emission Scanning Electron Microscope (FESEM) and Atomic Force Microscope (AFM). Along with the highest performance ofI-Vmeasurement given by U4 with open circuit,Voc = 0.742 V, short circuit,Isc = 0.36 mA, fill factor, FF = 57.012 gives 0.039% efficiency the examples for the first outdoor application upon sunlight illumination of such DSC were also reported. Therefore, this ultrasonic treatment and novel dye fromMelastoma malabathricumfruit are reliable to be used for further application.

scholarly journals The Potency of Senggani (Melastoma malabathricum L) Leaves in Repair of Pancreatic Beta Cells for Diabetes Mellitus Patients: A Narrative Review

2020 ◽  
Vol 7 (2) ◽  
pp. 61-70
Author(s):  
Galuh Rizal Prayoga ◽  
Aziz Syamsul Huda ◽  
Syndilona Br Sitepu
Keyword(s):  
Diabetes Mellitus ◽  
Binding Site ◽  
Beta Cells ◽  
Pancreatic Beta Cells ◽  
Docking Simulation ◽  
The Body ◽  
Inhibition Mechanism ◽  
Active Compounds ◽  
Glucose Levels ◽  
Melastoma Malabathricum

Diabetes mellitus is often caused by damage to pancreatic beta cells which play a role in secreting insulin in the body. Damage to pancreatic beta cells causes the body to lack insulin. Dipeptidyl peptidase-4 (DPP-4) is a peptidase enzyme complex located on the surface of the cell membrane. Inhibition of the DPP4 enzyme will increase blood GLP-1 levels and induce regeneration of pancreatic beta cells. Senggani leaf (Melastoma malabathricum) boiled water is believed by the people of the Ciamis area to be used as a diabetes medicine. There have been many studies and reviews related to Senggani (Melastoma malabathricum) and its potential. This review focuses on the discussion of Senggani as an antidiabetic by analyzing the reduction in glucose levels and the repair ability of pancreatic beta cells. The results of the literature study that show that senggani leaves have the ability to reduce blood glucose levels and repair activity of pancreatic beta cells through the DPP-4 enzyme inhibition mechanism supported by molecular docking simulation data. There are 12 active compounds that have a binding site similarity above 50% with the comparison compound vildagliptin. Rutin is the best active compound which has a 100% similarity of the binding site. Based on in vivo research and toxicity analysis on the admetsar database, senggani leaf extract and active compounds of senggani leaves have low toxicity, making it safe to be used as antidiabetic herbal preparations.

scholarly journals Uji parameter spesifik dan nonspesifik simplisia daun senggani (Melastoma malabathricum L.)

2020 ◽  
Vol 5 (4A) ◽  
pp. 17
Author(s):  
Rini Digna Evifania ◽  
Pratiwi Apridamayanti ◽  
Rafika Sari
Keyword(s):  
Melastoma Malabathricum

Latar belakang: Simplisia daun senggani adalah bahan alami yang berupa berupa serbuk kering daun senggani. Simplisia perlu dilakukan uji untuk menjamin mutu dan keamanan bagi konsumen, serta menjaga keseragaman khasiatnya. Penelitian ini bertujuan untuk mengetahui kualitas serbuk hasil simplisia daun senggani (Melastoma malabathricum L.) dari Pontianak, Kalimantan Barat. Metode: Uji simplisia daun senggani dilakukan dengan melihat parameter spesifik dan nonspesifik simplisia. Hasil: Hasil uji parameter spesifik yaitu uji organoleptis menunjukkan bentuk simplisia daun senggani adalah butiran kasar, berwarna coklat kehijauan, dengan rasa kelat, serta memiliki aroma yang aromatis kuat. Uji parameter nonspesifik didapatkan kadar abu total adalah sebesar 6,369% dan kadar abu tidak larut asam adalah 3,543%. Kesimpulan: Uji organoleptis dan uji kadar abu simplisia memenuhi syarat, tetapi hasil uji kadar abu tidak larut asam tidak memenuhi syarat.

scholarly journals Optical characterization and concentration-dependent antibacterial activity of silver nanoparticles (AgNPs) using aqueous Melastoma malabathricum extract against Staphylococcus aureus

2020 ◽  
Vol 11 (4) ◽  
pp. 5382-5387
Author(s):  
Irshad Ul Haq Bhat ◽  
Maisarah Binti Alias
Keyword(s):  
Staphylococcus Aureus ◽  
Silver Nanoparticles ◽  
Antibacterial Activity ◽  
Functional Groups ◽  
Diffusion Method ◽  
Synthetic Approach ◽  
Potential Candidate ◽  
X Ray ◽  
Melastoma Malabathricum ◽  
Resonance Band

The approach towards green synthetic methods has been enormously encouraged to synthesise nanoparticles for various uses. In this study, the one-pot synthetic method was adapted to synthesise silver nanoparticles (AgNPs) using Melastoma malabathricum (M. malabathricum) aqueous extract. The formation of AgNPs was confirmed by observing the results obtained by optical characterisation methods. The plasma resonance band along with shoulder at 375 nm and 595 nm, respectively, in Uv-Visible spectra supported the conversion of silver (Ag) to AgNPs reduced by functional groups present in the plant extract. The size of AgNPs was 31 nm and cubic in shape as confirmed by X-ray diffractometry (XRD) using Scherer equation. X-Ray Fluorescence (XRF) results also confirmed the presence of silver. The FTIR characterisation confirmed the presence of reducing functional groups. The antibacterial activity of AgNPs against Staphylococcus aureus (S. aureus) was carried out by disc diffusion method with increasing concentration of AgNPs, and enhanced inhibition zone was observed. The AgNPs obtained can be further explored against different bacterial strains and can a potential candidate as an antibacterial agent using the green synthetic approach.

scholarly journals Potensi Ekstrak Karamunting (Melastoma malabathricum L.) sebagai Insektisida Nabati untuk Mengendalikan Ulat Grayak (Spodoptera litura F.)

2019 ◽  
Vol 4 (1) ◽  
pp. 28
Author(s):  
Kartina Kartina ◽  
Shulkipli Shulkipli ◽  
Mardhiana Mardhiana ◽  
Saat Egra
Keyword(s):  
Spodoptera Litura ◽  
Leaf Extract ◽  
Feeding Activity ◽  
Larval Mortality ◽  
Wild Plant ◽  
Botanical Insecticides ◽  
Botanical Insecticide ◽  
Melastoma Malabathricum ◽  
Randomized Design ◽  
Completely Randomized Design

<h1>Spodoptera litura F. is one of the important pests in Horticulture commodities which can cause damage 80% and up to 100%. Karamunting (Melastome malabathricum) is a wild plant that grows in Tarakan City. This plant is known to contain secondary metabolites which are thought to have the potential to control pests. This study aims to determine the potential of Karamunting extract as a botanical insecticide material to control armyworms. This study uses a completely randomized design (CRD) method with 1 treatment factor, namely the concentration of Karamunting leaf extract. Potential extracts as botanical insecticides were tested by dye method using 4 concentrations, namely 0 (control); 500; 1000; 2000; 4000; and 8000 ppm. The results showed that Karamunting leaf extract was able to control armyworm pests. Giving extracts of 8000 ppm (P5) in feed caused the highest decrease in eating activity up to 41,2%, larval mortality up to 85%, and the highest mortality rate after 7 days of observation. Decreased feeding activity and larval mortality were thought to be influenced by the presence of phenol compounds, fatty acids, terpenoids, sterols and alkaloids identified in the extract. Thus, Karamunting leaf extract has the potential to be developed as an active ingredient in botanical insecticides to control armyworm.<strong></strong></h1>

scholarly journals Insect’s Visitation on Melastoma malabathricum in UKM Bangi Forest Reserve

2017 ◽  
Vol 1 (1) ◽  
pp. 20-22 ◽  
Author(s):  
Syuhada Ataa ◽  
Izfa Riza Hazmi ◽  
Siti Fatimah Samsudin
Keyword(s):  
Forest Reserve ◽  
Melastoma Malabathricum
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