marine chemistry
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2021 ◽  
Vol 869 (1) ◽  
pp. 012010
Author(s):  
S Agustina ◽  
S Bella ◽  
S Karina ◽  
I Irwan ◽  
M Ulfah

Abstract Identification of sea cucumbers from Benteng Inong Balee, Aceh Besar and their phytochemistry screening were conducted in December 2020 to January 2021 at Laboratory of Marine Chemistry and Fisheries Biotechnology, Universitas Syiah Kuala. The purpose of this study was to identify the species of sea cucumbers and its secondary metabolite content using phytochemistry screening and column chromatography. The species of sea cucumbers that were identified was Holothuria atra. The extraction method used in sea cucumber extraction was maceration method, while the separation of secondary metabolites used column-chromatography with eluent of n-hexane : ethyl acetate (8:4). The results showed that secondary metabolites obtained from phytochemical tests were flavonoids, saponins and triterpenoids.


2021 ◽  
Vol 869 (1) ◽  
pp. 012062
Author(s):  
D Syahputra ◽  
S Karina ◽  
Irwan ◽  
S Agustina ◽  
M Ulfah

Abstract The research focus on biolarvicidal activity of Rhizophora Stylosa leaf extract against Aedes sp. R. stylosa leaf was collected from Gampong Pande, Banda Aceh. This research was conducted at laboratory of Marine Chemistry and Fisheries Biotechnology, Marine and Fisheries Faculty, Universitas Syiah Kuala from Desember 2020 to March 2021. The objective of this study was to figure out the secondary metabolites content in the methanol extract of the mangrove leaf and its biolarvicidal activity against Aedes sp. larvae. The secondary metabolites were screened out using phytochemical screening. The extract was tested for its biolarvicidal activity against third instar larvae of the Aedes sp. mosquito at incubation’s time of 48 hours. The biolarvicidal activity is expressed in LC50 which was determined by probit analysis using SPSS. The results of qualitative test showed that the extract contained of flavonoids, saponins, triterpenoids and tannins. Based on the results of probit analysis, the LC50 value of the extract against Aedes sp. was 858.89 ppm.


2021 ◽  
Vol 3 (1) ◽  
pp. 49-56
Author(s):  
Nina Adriani

Virus corona (COVID-19) menyebar dengan pesat di Indonesia sejak pertengahan Maret 2020, sehingga menuntut pemerintah untuk mencari solusi bagi mengurangi dampak penyebaran virus ini. Salah satu cara yang efektif adalah selalu menjaga kebersihan tubuh dengan selalu menggunakan hand sanitizer. Hand sanitizer merupakan cairan pembersih kuman yang digunakan pada tangan dan dapat membunuh kuman secara singkat karena kandungan yang terdapat dalam hand sanitizer berupa zat kimia yang berkonsentrasi tinggi seperti alkohol. Pasca pandemi COVID-19, cairan hand sanitizer sulit ditemukan karena kebutuhan yang sangat tinggi oleh seluruh masyarakat, sehingga hal ini menjadi pencetus institusi untuk mengajak akademisi untuk berperan aktif dalam membuat hand sanitizer yang dapat digunakan oleh masyarakat yang membutuhkan. Oleh karena itu dosen prodi Pendidikan Kimia UMRAH mendampingi mahasiswa Pendidikan kimia dalam membuat hand sanitizer yang dapat digunakan pada pandemi COVID-19 dan dapat digunakan oleh masyarakat umum. Pembuatan hand sanitizer ini menggunakan bahan-bahan seperti alkohol, hidrogen peroksida dan aloevera yang dilakukan di laboratorium Marine Chemistry, Universitas Maritim Raja Ali Haji. Produk hand sanitizer dapat digunakan oleh masyarakat umum melalui distribusi oleh satgas Kota Tanjungpinang, yayasan kesehatan masyarakat, puskesmas dan baznas Kota Tanjungpinang. Hal ini diharapkan dapat menjadi salah satu solusi dalam mengurangi penyebaran virus COVID-19 di kota Tanjungpinang.


2021 ◽  
pp. 103678
Author(s):  
Meng Cheng ◽  
Zihu Zhang ◽  
Thomas J. Algeo ◽  
Shuliang Liu ◽  
Xiaodan Liu ◽  
...  
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2021 ◽  
Vol 236 ◽  
pp. 105839
Author(s):  
Peter Fink-Jensen ◽  
Teunis Jansen ◽  
Tonny Bernt Thomsen ◽  
Simon Hansen Serre ◽  
Karin Hüssy

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