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All Journal EKSAKTA: Journal of Sciences and Data Analysis Jurnal Periodic Jurusan Kimia UNP JURNAL EKSAKTA PENDIDIKAN (JEP) Logista: Jurnal Ilmiah Pengabdian Kepada Masyarakat Eksakta : Berkala Ilmiah Bidang MIPA EDUKATIF : JURNAL ILMU PENDIDIKAN JURNAL PENDIDIKAN MIPA Suluah Bendang: Jurnal Ilmiah Pengabdian Kepada Masyarakat Edukimia Jurnal Pijar MIPA Prisma Sains: Jurnal Pengkajian Ilmu dan Pembelajaran Matematika dan IPA IKIP Mataram Entalpi Pendidikan Kimia Ranah Research : Journal of Multidisciplinary Research and Development
Iswendi Iswendi
Universitas Negeri Padang
Agriculture, Biological Sciences & Forestry Humanities Astronomy Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Mechanical Engineering Physics Public Health Social Sciences Transportation Other

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Journal : EKSAKTA: Journal of Sciences and Data Analysis

 1 
Utilization of Cassava Processing Liquid Waste as Raw Material for Making Biodegradable Plastics with the Addition of Glycerol Plasticizer Iswendi Iswendi; Iryani Iryani; Alpira Alpira; Regi Fadila Putra
EKSAKTA: Journal of Sciences and Data Analysis VOLUME 2, ISSUE 2, August 2021
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/EKSAKTA.vol2.iss2.art2

Abstract

This study aimed to utilize cassava processing liquid waste into biodegradable plastic with glycerol as a plasticizer. This experimental study varies the amount of glycerol: (0, 1, 2, 3, 4, and 5) mL. The resulting biodegradable plastics were analyzed for physical properties consist of (water content and degree of swelling), mechanical properties consist of (tensile strength, elongation, elasticity), biodegradation, and structural properties. Fourier Transform Infra-Red and x-ray diffraction were employed for the studies. The results showed that the more glycerol added, the greater the percentage of water content and the degree of swelling were obtained. The optimum tensile of the biodegradable plastic was reached with 3 mL of glycerol, giving the strength of 27.49 N/mm2, elongation 0.107 N/mm2, elasticity 4.804 MPa. Biodegradable plastic with the addition of 5 mL of glycerol degraded up to 60.777%. The FTIR spectra showed almost the same peaks between plastics without the addition of glycerol and glycerol. Meanwhile, XRD data shows that the degree of crystallinity of plastic without glycerol is higher than that of plastic with the addition of glycerol.
Effect of Virgin Coconut Oil from Green Coconut on High-Density Lipoprotein (HDL) Levels in Blood Serum of White Mice Iswendi Iswendi; Iryani Iryani; Regi Fadila Putra
EKSAKTA: Journal of Sciences and Data Analysis VOLUME 2, ISSUE 2, August 2021
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/EKSAKTA.vol2.iss2.art10

Abstract

This study aims to determine the effect of High-Density Lipoprotein (VCO) dose on mice's blood serum High-Density Lipoprotein (HDL) levels. This study is an experimental study using 24 mice divided into four groups. Control (-), Control (+) were fed egg yolks 0.025 mL/g body weight, Dose 0.02 and Dose 0.025 were experimental groups, given egg yolks 0.025 mL/g mice body weight and VCO at a dose of 0.020 mL, and 0.025 mL/g body weight of mice. HDL levels were determined on days 7, 14, and 21 by enzymatic method using 20 D* spectrophotometry. The statistical test found that the length of time giving VCO significantly affected blood serum HDL levels in mice with Fcount > Ftable (Fcount = 7.128 and Ftable = 5.14). In contrast, variations in VCO dose did not significantly affect blood serum HDL levels. mice with Fcount < Ftable (Fcount = 3.33 and Ftable = 4.76). The highest HDL level was at a dose of 0.020 mL/g body weight of mice with a treatment period of 14 days, namely 164,033 mg/dL of blood.
Co-Authors Achsanul Hakimi Alpira Alpira Amalia Putri Lubis Amelia Putri Ananda Rahmadani Anisa Sapitri Annisa Dewi Pangestuti Annisa Rezky Fadillah Citra Devira Desnita Dewi Ayu Novita Faizah Qurratul ‘Aini Fitri Amelia Indah Adelina Indah Dwi Putri Indah Fedya Sari Indria Trisna Katrina Iryani Iryani Iryani Iryani Iryani Iryani Iryani Iryani Lola Indriliza Nadila Sri Yolanda Nivelda Yani Hasibuan Nofrin Alisa Putri Alia Regi Fadila Putra Regi Fadila Putra Resha Rinelda Ririn Agustriana Iswara Savira Harna Febiyanti Sherly Rahmayani Sri Benti Etika Taufik Maulana Rinata Yolanda Vitri Yona Febriani Yurnalisa Aprilia Yusmaita, Eka Zonalia Fitriza