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Upaya Penanggulangan Pandemi Covid-19 di Panti Asuhan Al-Falah, Padang Refinel Refinel; Emriadi Emriadi; Safni Safni; Mai Efdi; Syukri Syukri; Suryati Suryati; Marniati Salim; Imelda Imelda; Ibnu Irawan; Putri Arwanda
Jurnal Pengabdian Warta Andalas Vol 27 No 2 (2020): Published in June 2020
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat (LPPM) Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jwa.27.2.113-118.2020

Abstract

The Islamic Boarding School and Orphanage Al-Falah Padang are located on Bypass Km 16, behind the West Sumatra TVRI office. Al-Falah Boarding School has 367 students, 265 of them are foster children in the Orphanage. Inadequate construction and classrooms, the students and foster children of the Islamic Boarding School and the Al-Falah Orphanage studied and lived their daily lives. The occurrence of the Covid-19 pandemic certainly affected the daily activities and learning activities of the orphanage children. Especially, the fulfillment of their basic needs. Moreover, the main problem of Covid-19 is not only about the effects by the virus on sufferers but also about its rapid transmission. Therefore, to help the crisis due to Covid-19, several lecturers and students from the Faculty of Mathematics and Natural Sciences Universitas Andalas (Unand) provided staple foods, money, masks, hand sanitizers, and disinfectants for residents of the Al-Falah Padang orphanage. It is hoped that can help the residents of the Al-Falah orphanage who certainly feel the impact of the Covid-19 pandemic.
PENAMBAHAN PUPUK KOMERSIAL PADA MEDIUM BBM UNTUK PERTUMBUHAN SPIRULINA PLANTENSIS DAN UJI AKTIVITAS ANTIOKSIDAN Elida Mardiah; Nur Fadillah Pulungan; Marniati Salim
Prosiding Seminar Nasional Pakar Prosiding Seminar Nasional Pakar 2019 Buku I
Publisher : Lembaga Penelitian Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/pakar.v0i0.4153

Abstract

The productivity and quality of Spirulina platensis is determined by the medium growth. One nutrient that can be used for growth Spirulina platensis microalgae are commercial fertilizers including Urea, ZA and TSP. The nitrogen contained in Urea and ZA fertilizers and phosphate in TSP fertilizer will used as an additional nutrient into the growth medium. This research aims to optimize the Spirulina platensis growth medium and test antioxidant activity. Spirulina platensis extract is obtained by sonication and maceration with methanol solvent. The antioxidant activity test was carried out withcalculate IC.50 by spectrophotometry by method1, 1-diphenyl-2-picrylhydrazyl (DPPH). The results showed that fertilizervariations ontreatments P1, P2, P3, P4, P5 and P6 provide optimum growthattreatment P5 (40% urea, 10% ZA and 40% TSP). Spirulina platensis growthon BBM, P5 and BBM medium combined with P5highest cell density on different days of growth. highest is availableon medium C (50% BBM + P5 50%) on day 11. Antioxidant activity inmedium C69,103m g / l, antioxidant activities are classified strong.
EMISI DAN ABSORPSI GAS METANA PADA SISTEM PENANAMAN PADI DI AREA TANAH SAWAH Marniati Salim; Hiyal Faizah; I Made Sudiana
Jurnal Riset Kimia Vol. 4 No. 1 (2010): September
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jrk.v4i1.74

Abstract

 To know there are emission and methane absorption, research was conduted by measuring directly gas methane at the rice field and absorption with metanotroph bactery using chromatography gas. From the research, we know that there is methane gas emission at the rice field. Watery land condition, emit methane gas (2,309 mg/L) larger than not watery land (0,059 mg/L). At the same time and paddy age is 2 month, it also emit larger methane gas (1,809 mg/L) than 1 month age paddy (1,758 mg/L) and without paddy (0,697 mg/L), whereas for methane absorption at land sample  T0, T1, T2, T3, shows that with fertilizer given can increase the reduction of injected methane gas. Keywords: Absorption, Metanotroph bacteria, Methane gas emission   
PRODUKSI BIOETANOL DARI SAMPAH DEDAUNAN SEKITAR KAMPUS UNAND DENGAN METODE SSF (SIMULTANEOUS SACHARIFICATION FERMENTATION) Marniati Salim; Elida Mardiah; Yollanda Atmelwidia
Jurnal Riset Kimia Vol. 7 No. 2 (2014): March
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jrk.v7i2.173

Abstract

Vol 7 No 2ABSTRACTIn this research, cellulose from waste leaves are conversed into ethanol by SSF technologyusing cellulase from Trichoderma viride strain T1 sk. In saccharification process, cellulasebreaks cellulase polymer into glucose. Simultaneously, the formed glucose is conversed intoethanol by invertase produced by Saccharomyces cerevisiaewhich is grew on YPD medium.Waste leaves are pretreatmented using basic solutions : basic NaOH 1 %, NH4OH 8 %, NaOH 1% + NH4OH 4 % and NaOH 1 % + NH4OH 8 % with ratio of solid mather (sample) : liquid(basic solution) 1:10 (w/v) with volume of basic solution 100 mL. Immersion time is variatedfor 24, 48 and 72 hours on 500C. The result of research shows that the use of NaOH 1% +NH4OH 4% gives the highest glucose concentration 933,75 μg/mL with immersion time for 72hours on 500C. After being pretreatmented, sample of 0,4 g waste leaves produce the highestglucose concentration. Measurement by GC/MS shows ethanol concentration 62,41% onfermentation time 96 hours with volume of ethanol 2,45 mL for 0,4 g sample.Keywords : Waste leaves, Pretreatment, Trichoderma viride strain T1 sk, SSF, Bioethanol
MEMPELAJARI KONDISI OPTIMUM PEMBUATAN BIOETANOL MELALUI HIDROLISIS ENZIMATIS MENGGUNAKAN Sacharomycess cereviceae DARI PATI SAGU DAN UMBI TALAS Marniati Salim; Elida Mardiah; Yosi Opthymal; Febby Febrizal
Jurnal Riset Kimia Vol. 5 No. 1 (2011): September
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jrk.v5i1.174

Abstract

Vol 5 No 1ABSTRACT Sago (Metroxylon sp) and umbi talas (Colocasia gigantea Hook F) are natural resources that are found in plantyfull Indonesian. However, these potencies are not yet processed to give an optimum value added product. Sago and taro are rich of starch, that could be fermented to form bioethanol for reneweable energy. The ethanol were produced by fermenting the hydrolized starch of sago and taro with yeast. The starch of sago and taro were hydrolized enzymaticly by α-amylase and glucoamylase. Sago and taro (15 g each) were grinded and hydrolized by α-amylase and then by glucoamylase at the variation of volume of 4, 5, 6, 7, and 8 mL for 1, 2, 3, 4, and 5 hours. The glucose produced was measured by Somogy-Nelson methods. The product of sago hydrolysis were optimum with 6 mL of α-amylase and 6 mL glucoamylase for 2 hours to give 59.11 g/L of reducing sugar. The product of taro with 6 mL α-amylase and 7 mL glucoamylase for 4 hours which gave 64.22 g/L of reducing sugar. The product of ethanol were analyzed by Gas Cromatography (GC). The maximum bioethanol production obtained optimum after 4 days fermentation of hydrolized sago starch and after 5 days fermentation of hydrolized taro starch which were 3.742% and 4.0123%. Key words: Bioethanol, sago starch, taro, enzymatic hydrolysed, α-amylase and glucoamylase
UJI SENYAWA ANTIMIKROBA DARI ASAM LEMAK DAN FATTY ACID METHYL ESTER (FAME) MIKROALGA Nannochloropsis oculata Zulkarnain Chaidir; Sari Rahmi; Marniati Salim
Prosiding Seminar Nasional Pakar Prosiding Seminar Nasional Pakar 2019 Buku I
Publisher : Lembaga Penelitian Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/pakar.v0i0.4144

Abstract

Microalgae contains many bioactive molecules including lipid that can be useful for development of antimicrobial compounds. The aim of this research is to test antimicrobial compounds from fatty acid and fatty acid methyl ester (FAME)from microalgae Nannochloropsis oculata. Lipid from microalgae was extracted using hexane and transesterfied using methanol dan sulfuric acid p.a as catalist. Antimicrobial activities were tested using disc diffusion methode against Staphylococcus aureus, Escherichia coli, and yeast Candida albicans, at varying concentrations are 100, 200, and 300 mg/L. The result shown that fatty acids and FAME from microalgae Nannochloropsis oculata have antibacterial activity and do not have anti-candidal activity against Candida albicans. Antibacterial activity of fatty acids is higher than antibacterial activity of FAME on both bacteria. The result shown that fatty acids and FAME contained in lipid of microalgae Nannochloropsis oculata are palmitic acid, stearic acid, methyl lauric, and methyl stearic.