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All Journal Jurnal Teknik Kimia CARADDE: Jurnal Pengabdian Kepada Masyarakat Jurnal ABDINUS : Jurnal Pengabdian Nusantara Makara Journal of Technology
Emma Savitri
Universitas Surabaya
Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Social Sciences

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TEMPERATURE AND ACETIC ACID CONCENTRATION OPTIMATION IN THE EPOXIDATION REACTION OF PALM OIL METHYL ESTER Emma Savitri, dan Christopher Aditya Sivananda, Edy Purwanto,
Jurnal Teknik Kimia Vol 6, No 1 (2011): JURNAL TEKNIK KIMIA
Publisher : Program Studi Teknik Kimia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33005/jurnal_tekkim.v6i1.75

Abstract

Vegetable oils are rich in content unsaturated fatty acid from the type of oleic acid, linoleic acid andlinolenic acid that can be converted to epoxide groups. Epoxidized oil has many useful applications such asplastisizer to improve flexibility, elasticity and stability under the influence of heat and radiation. In thisresearch, palm oil was converted first to become palm oil methyl ester (POME), followed by epoxidationreaction to produce epoxidized palm oil methyl ester (EPOME). Response surface method (RSM) was performedfor optimization and to study the influence of reaction temperature and molar ratioPOME/CH3COOH on the conversion reaction and oxirane value. An optimal reactional condition was shownby high oxirane content which was in the form of oxirane counts/number. Epoxidation reaction was run inthe batch reactor using acetic acid as an oxygen carrier. Central Composite Design (CCD) with two independentvariables and two response function was utilized to investigate the effect of input variables. Theresult shows that reaction conversion increased with the rise of reaction temperature and molar ratio ofPOME/CH3COOH before reaching the maximum point, and then it monotonously decreased. The optimaloperating condition for epoxidation reaction was indicated by maximum oxirane value which could bereached by the reaction temperature of 56.3 oC and molar ratio POME/CH3COOH of 1:0.43Key words: epoxidation, methyl ester, oxirane, palm oil
Peningkatan Keterampilan dan Produktivitas Ekonomis Panti Asuhan Grha Aitam Al Madina Devyani Diah Wulansari; Emma Savitri; Hayuning Purnama Dewi
CARADDE: Jurnal Pengabdian Kepada Masyarakat Vol. 4 No. 2 (2021): Desember
Publisher : Ilin Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31960/caradde.v4i2.1334

Abstract

The purpose of this service program is to improve skills and productivity. economical partner. The method used is through mentoring and training programs by academics from the University of Surabaya related to halal certification, analysis of honey content for quality control and improvement of the packaging process to improve the hygiene of honey products. From the results of this community service program, Partners succeeded in obtaining LPPOM MUI halal certificates for Honey products, analysis of water content, metals, ash, microbial contamination, diastase enzymes, and Hydroxymethyl Furfural (HMF) by SNI 8664-2018, and the honey packaging process through the application of appropriate technology to maintain the hygiene and quality of honey.  
Pengembangan Center of Honey Kampung Madu Lumbang Kabupaten Probolinggo Emma Savitri; Agung Prayitno; Syamsul Hadi
Jurnal ABDINUS : Jurnal Pengabdian Nusantara Vol 3 No 2 (2020): Volume 3 Nomor 2 Tahun 2020
Publisher : Universitas Nusantara PGRI Kediri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29407/ja.v3i2.13807

Abstract

Lumbang Honey is one of the featured products owned by Lumbang, Probolinggo, East Java. As a featured product, the legality has been issued by the Probolinggo District Government through Probolinggo Regent Decree number 030/1134/426.12/2013. Lumbang honey is supported by 10 Forest Farmer Groups with honey production of 6,206 kg per month in 2014. Although the amount of honey production is very abundant, Lumbang honey has not been able to compete with commercial honey products on the market. This is because the quality and price of Lumbang honey is very diverse. Therefore, The Center of Honey "Kampung Madu" was established in Lumbang Village, Probolinggo. The purpose of Kampung Madu are as a place to produce premium quality of honey as well as a place for marketing and honey-related education to the community. The method is by approaching the technology application and product standardization as well as assistance in strengthening the farmer institutional management. The results of the assistance, Kampung Madu has been able to produce an average of 900 kg of premium quality of honey per month with the brand "Madu Madakaripura" which has fulfilled the water content in accordance with SNI 8664 : 2018 which is less than 22% and has obtained a PIRT certificate. In terms of prices, there is an increase in the price of honey to 500 % of the raw honey obtained from farmers. From the aspect of strengthening institutional management, there have been 30 farmers in the District of Lumbang who are members of the Cooperation of HIMATERA in the honey division. The cooperation has a role in helping the farmers in providing capital and facilities.
Multistage Sonication Effect on the Composition and Properties of Degraded Chitosan Product Arifin, Nurul Laili; Savitri, Emma; Indah, Anjar; Putra, Fesa; Sumarno, Sumarno
Makara Journal of Technology Vol. 23, No. 1
Publisher : UI Scholars Hub

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Abstract

The sonication method randomly breaks polymer chains to produce a varied distribution of products. A scheme with multi-stage sonication steps is proposed to identify oligomers and low molecular weight chitosan based on changes to the degrad-ed product. For each sonication level, 1% (w/v) chitosan in 1% (v/v) aqueous acetic acid was sonicated for 120 min at 60 °C. The products of the sonication treatment were deprotonized by adding an alkali solution, freeze dried and insoluble product re-sonicated until a low molecular weight was produced. Low molecular weight chitosan/insoluble products were character-ized with Fourier-transform infrared spectra (FT-IR) and X-ray diffraction (XRD) to determine the effect of multistage soni-cation on degree of deacetylation (DD) and degree of crystallinity. The viscosity of the average molecular weight of insolu-ble chitosan was estimated by a viscometric method, while the degree of polymerization (DP) of the chitosan oligomers (COS) were determined by end group analysis. The results showed that the molecular weight of insoluble chitosan decreased and reached a limiting value, (Mlim). The percent yield of oligoglucosamine of the soluble products increased with the num-ber of the sonication stages. The degree of crystallinity of insoluble chitosan increased from 19% to 34.14% while the DD decreased from 82% to 78.1%.
Co-Authors Agung Prayitno Hayuning Purnama Dewi Indah, Anjar Kristianto, Fesa Putra Nurul Laili Arifin, Nurul Laili Sumarno . Syamsul Ph.D M.A. Hadi Wulansari, Devyani Diah