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All Journal Equilibrium Journal of Chemical Engineering Bharasumba Jurnal Multidispliner PARADIGM : JOURNAL OF MULTIDISCIPLINARY RESEARCH AND INNOVATION
Marzuki, Hasan
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Penetapan Kadar HMF dalam Madu Menggunakan Kromatografi Kinerja Tingkat Tinggi Dimyati, Erin; Marzuki, Hasan
Jurnal Multidisipliner Bharasumba Vol 2 No 01 (2023): Jurnal Multidisipliner Bharasumba
Publisher : Pusat Studi Ekonomi, Publikasi Ilmiah dan Pengembangan SDM

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62668/bharasumba.v2i01.495

Abstract

The circulation of counterfeit honey educates the public about the authenticity of honey by informing them about the honey content, including Hydroxymethyl Furfural (HMF), which indicates the purity of honey. The sample for this study was packaged honey circulating in the community, and the HMF levels were determined using an HPLC instrument. With the results of this study, there was 1 sample of honey containing an HMF level of 295.58 mg/kg, so the level value exceeded the safe limit for consumption according to the 2019 BPOM regulations of 50 mg/kg.
PENGARUH PENAMBAHAN DOSIS CEMENT GRINDING AID (CGA) TERHADAP SETTING TIME DAN KUAT TEKAN MORTAR PADA SEMEN PCC DI PT. SEMEN BATURAJA TBK Sunarsih, Tri; Marzuki, Hasan; Anaser, Novadri; Safaruddin, Safaruddin
PARADIGM : Journal Of Multidisciplinary Research and Innovation Vol 2 No 02 (2024): PARADIGM : Journal Of Multidisciplinary Research and Innovation
Publisher : Pusat Studi Ekonomi Publikasi Ilmiah dan Pengembangan SDM Azramedia indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62668/paradigm.v2i02.1192

Abstract

Cement Grinding Aid (CGA) appears as an addition that has the potential to affect the characteristics of the mortar in PCC cement. The purpose of this study is to optimize the formulation of PCC cement from CGA-MBS and CGA-MAPEI types against the Setting Time and mortar compressive strength. In this study, a physical test method was used, namely the setting time and mortar compressive strength test. From the results of the study, the setting time test is faster for the CGA-MAPEI type because it increases the smoothness of the cement, while the CGA-MBS type has a chemical composition content that more affects its properties as a more stable and resistant adhesive. In the mortar compressive strength test, the addition of a dose of CGA (100 – 400) ppm the compressive strength value of CGA-MAPEI mortar is higher than that of GCA-MBS, but in the addition of a dose of 500 ppm, the compressive strength value of CGA-MAPEI is still below the compressive strength value of CGA-MBS.
PENGARUH PENAMBAHAN DOSIS CEMENT GRINDING AID (CGA) TERHADAP SETTING TIME DAN KUAT TEKAN MORTAR PADA SEMEN PCC DI PT. SEMEN BATURAJA TBK Sunarsih, Tri; Marzuki, Hasan; Anaser, Novadri; Safaruddin, Safaruddin
PARADIGM : Journal Of Multidisciplinary Research and Innovation Vol 2 No 02 (2024): PARADIGM : Journal Of Multidisciplinary Research and Innovation
Publisher : Pusat Studi Ekonomi Publikasi Ilmiah dan Pengembangan SDM

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62668/paradigm.v2i02.1192

Abstract

Cement Grinding Aid (CGA) appears as an addition that has the potential to affect the characteristics of the mortar in PCC cement. The purpose of this study is to optimize the formulation of PCC cement from CGA-MBS and CGA-MAPEI types against the Setting Time and mortar compressive strength. In this study, a physical test method was used, namely the setting time and mortar compressive strength test. From the results of the study, the setting time test is faster for the CGA-MAPEI type because it increases the smoothness of the cement, while the CGA-MBS type has a chemical composition content that more affects its properties as a more stable and resistant adhesive. In the mortar compressive strength test, the addition of a dose of CGA (100 – 400) ppm the compressive strength value of CGA-MAPEI mortar is higher than that of GCA-MBS, but in the addition of a dose of 500 ppm, the compressive strength value of CGA-MAPEI is still below the compressive strength value of CGA-MBS.
Penetapan Kadar HMF dalam Madu Menggunakan Kromatografi Kinerja Tingkat Tinggi Dimyati, Erin; Marzuki, Hasan
Jurnal Multidisipliner Bharasumba Vol 2 No 01 (2023): Jurnal Multidisipliner Bharasumba
Publisher : Pusat Studi Ekonomi, Publikasi Ilmiah dan Pengembangan SDM

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62668/bharasumba.v2i01.495

Abstract

The circulation of counterfeit honey educates the public about the authenticity of honey by informing them about the honey content, including Hydroxymethyl Furfural (HMF), which indicates the purity of honey. The sample for this study was packaged honey circulating in the community, and the HMF levels were determined using an HPLC instrument. With the results of this study, there was 1 sample of honey containing an HMF level of 295.58 mg/kg, so the level value exceeded the safe limit for consumption according to the 2019 BPOM regulations of 50 mg/kg.
Synthesis of Water Hyacinth/Cassava Starch Composite as An Environmentally Friendly Plastic Solution Syamsuri, M. Mahfudz Fauzi; Marzuki, Hasan; Setiawan, Dedi Wahyu Ari; Rusmaniar, Rusmaniar; Astika, Tri
Equilibrium Journal of Chemical Engineering Vol 7, No 2 (2023): Volume 7, No 2 December 2023
Publisher : Program studi Teknik Kimia UNS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/equilibrium.v7i2.76508

Abstract

Abstract. Conventional plastics made from petroleum polymers were the largest contributor to solid waste on earth. Environmentally friendly bioplastic fabricated by compositing starch and natural fibers were proposed to be a solution to this problem. The purpose of this research was to synthesize bioplastic from water hyacinth fiber composite with cassava starch and test its mechanical properties. Bioplastic fabrication was using melt intercalation method using water hyacinth fibers (WHF) with and without alkali treatment mixed with cassava starch (CS) and glycerol as plasticizer. The resulting bioplastic were characterized with FT-IR and tested for mechanical properties. The mechanical test results showed that water hyacinth fiber alkaline treated/cassava starch (WHF-AT/CS) bioplastic has tensile strength, % elongation, and water absorption values of 1.226 MPa, 3.33%, and 10.26%, respectively. While the bioplastic water hyacinth fiber untreated/cassava starch (WHF-UT/CS) has a tensile strength test value, % elongation, and water absorption of 0.306 MPa, 1.67%, and 11.39, respectively.  Therefore it can be said that WHF-AT/CS bioplastic has better mechanical properties when compared to WHF-UT/CS bioplastic.Keywords:Biocomposite, Bioplastic, Cassava Starch, Water Hyacinth Fiber
Co-Authors anaser, Novadri Astika, Tri Dimyati, Erin M. Mahfudz Fauzi Syamsuri Nurwijayanti RR. Ella Evrita Hestiandari Rusmaniar, Rusmaniar Setiawan, Dedi Wahyu Ari Tri Sunarsih