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Mohamad Endy Y Yulianto
Departement Of Chemical Engineering, Vocational School, Diponegoro University
Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Economics, Econometrics & Finance Education Engineering Environmental Science Health Professions Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Public Health Social Sciences Other

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Journal : GEMA TEKNOLOGI

 1 
PENENTUAN FAKTOR BERPENGARUH PADA EKSTRAKSI RIMPANG JAHE MENGGUNAKAN EXTRAKTOR BERPENGADUK Anggista, Giovani; Pangestu, Ilyas Teguh; Handayani, Dwi; Yulianto, M. Endy; Astuti, Septi Kusuma
Gema Teknologi Vol 20, No 3 (2019): April 2019 - October 2019
Publisher : Vocational School Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (183.542 KB) | DOI: 10.14710/gt.v20i3.24532

Abstract

Giovani Anggista , Ilyas Teguh Pangestu, Dwi Handayani, M. Endy Yulianto, Septi Kusuma, in this paper explain that the main part of ginger used is rhizome. Processed ginger products that can be developed are ginger oleoresin which contains components of gingerol, shogaol, zingerone, resin and essential oils. Ginger oleoresin content ranges from 3.2 - 9.5%, while the content of gingerol in oleoresin is between 14-25% and shogaol between oleoresin. 2.8-7.0%. Considering the benefits of high-antioxidant ginger which functions as an anti-inflammatory and prevents tumor growth, it is necessary to extract the ginger rhizome. The purpose of this study was to determine the factors that most influence the extraction of gingerol from the ginger rhizome using a stirred extractor and relatively good conditions. Experiments were carried out with various solvents, pH and temperature. Solvents 4 liters and 8 liters, pH 4 and 6 and temperatures 60oC and 100oC. The Gingerol content is measured by a VIS spectrophotometer. The most influential factor in extraction of ginger was determined by experimental design 23. The analysis of the results showed that for extracting 500 grams of powdered ginger using water as a solvent, the most influential factor was pH, in this case, at pH 6 containing 4% ginger.
EKSTRAKSI SENYAWA BIOAKTIF THEAFLAVIN TEH OOLONG (CAMELLIA SINESIS) DENGAN AIR SEBAGAI GREEN SOLVENT Amalia, Rizka; Yulianto, Mohamad Endy; Purwantisari, Susiana; Yudanto, Yusuf Arya; Pangestu, Ilyas Teguh
Gema Teknologi Vol 21, No 1 (2020): April 2020 - October 2020
Publisher : Vocational School Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/gt.v21i1.32287

Abstract

Theaflavin, a polyphenolic compounds found  in oolong tea and black tea, thought to have medicinal potency. Theaflavins and their derivatives such as theaflavin gallate have shown a broad spectrum of antiviral activity against several viruses, including influenza A, B and hepatitis C viruses. Previous research show that theaflavins could inhibit RdRp activity through blocking the active site in the catalytic pocket of RdRp in SARS‐CoV‐2, SARS‐CoV and MERS‐CoV.. This research aims to extract theaflavins in oolong tea with water solvent at a temperature of 100oC, pressure > 1 atm and varied extraction times (10-60 minutes). The effect of oolong tea extraction time towards the  theaflavin content was observed. The results showed that with the longer extraction time, the theaflavin levels were reduced due to the degradation of thermal theaflavins into thearubigins. The model exponential equation obtained is  y=14,91488 e-0,2631x + 0,11865, with the R2=0.99161. The best operating conditions was obtained at 10 minutes of extraction time, resulted in 1.19% of the total theaflavin content of oolong tea.
EKSTRAKSI ASAM LEMAK BEBAS DARI MINYAK NABATI DENGAN METANOL KAJIAN PERPINDAHAN MASSA Wahyuningsih Wahyuningsih; Moh Endy Yulianto
Gema Teknologi Vol 16, No 4 (2012): October 2011 - April 2012
Publisher : Vocational School Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (137.118 KB) | DOI: 10.14710/gt.v16i4.4785

Abstract

Wahyuningsih, Moh Endy Yulianto, in this paper explain that extraction of free fatty acids from vegetable oils with methanol performed in batch stirred tank, in a variety of conditions. Variables experiments in liquid-liquid extraction including temperature, solvent ratio and rotational speed stirrer. This study aims to develop a correlation coefficient of mass transfer in extraction of free fatty acids from vegetable oils methanol. Rresearch was conducted in two phases. Was the first stage liquid-liquid extraction experiments in laboratory. Second step is the development of an empirical correlation for the mass transfer coefficients in the form of numbers not berdemensi results showed that the greater the temperature, turn the mixer speed and solvent-feed ratio of the mass transfer koffisien gained greater. Mass transfer coefficient expressed in Sherwood number and correlated against the Reynolds number, Schmitd, (dP / dT) and (L / S), the results obtained: Sh = 4,669 x 10-5 Re 0,462 Sc0,5 (dP/dT)0,308 (L/S)0,187 If used to calculate the mass transfer coefficients, have an average error of 8.79% for the regression line. This equation was developed in the Re number range 3169 to 11 750; numbers Sc 6321 to 9896, (dp / dT) from 0.0007 to 0.0013 and (L / S) of 0.333 to 1. Keywords: nabati oil extraction
Co-Authors Abdullah Ridhwan Purnomo Adisti Putri Intaniasari Andi Nur Alamsyah Anggista, Giovani Anggun Puspitarini Siswanto Anindya Ardiansari Aprilani, Berliana Ari Yuniastuti Astuti, Septi Kusuma Ayun Sriatmi Azhara, Belinda B Budiyono Broto, R. T. D. Wisnu D. K. wikanta Damayani, Intan Ardina Deddy Kurniawan Wikanta Devita Hardianti Didik Ariwibowo Didik Ariwibowo Diwiyanto, Yusron Mahendra Diyono Ikhsan Diyono Ikhsan Dwi Handayani Dwi Handayani Dwi Handayani Edy Supriyo Eflita Yohana Endah Lestari Fahmi Arifan Fardzanela S Fardzanela S Fauzi, Nurrohmat Fiqih Putri Juanita Frisca Riana A FS Nugraheni S Hanifah Hanifah Heny Kusumayanti Heny Kusumayanti Hermawan Dwi Ariyanto Hermawan Dwi Ariyanto I. Hartati Ifana Ifana Ilyas Teguh Pangestu Indah Hartati Indah Hartati Indra Waspada Isti Pudjihastuti Juli Mrihardjono Juli Mrihardjono Latif, Abdul Madina, Haura Salwa Mandy Ayulia Dwisukma Margaretha Tuti Susanti Margaretha Tuti Susanti Monawisya, Abitha Muhammad Rizki Mulyaningsih, M.F. Sri Mustikaningrum, Mega Nanda, Dodi Eko Nanik Damayanti Nisa, Qurrotun A'yuni Khoirun Nyamiati, Retno Dwi Oktavian Dita Ratnasari Pangestu, Ilyas Teguh Pramudika, Satya Prasakti, Laras Priyono Kusumo R.T.D Wisnu Broto Rangkum Sembodo Rendiyatna Ferdian Riana Sitawati Riana Sitawati Rizka Amalia Rizka Amalia Rizka, Rashinta RTD Wisnu Broto Rudi Firyanto Saputri, Arum Dyah Saputri, Rizky Yunita Selvina Selvina Senen Senen Seno Darmanto Seno Darmanto Siti Nur Jannah Sovia, Ghina Sri Utami H Sri Utami Handayani Susiana Purwantisari Sutrisno Sutrisno Sutrisno, Sutrisno Sutrisno, Sutrisno Tandang Patria Tama Udin Bahrudin, Udin Utari, Febiani Dwi Vita Paramita Vita Paramita Vita Paramitha Wahyuningsih Wahyuningsih Wendi E Wendi E Winda Kristiana Yudanto, Yusuf Arya Zainal Abidin Zainal Abidin Zainal Abidin