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All Journal ASEAN Journal of Community Engagement Jurnal Ilmiah Berkala: Sains dan Terapan Kimia
Muliasari Kartikawati
Universitas Ciputra Surabaya
Chemical Engineering, Chemistry & Bioengineering Chemistry Economics, Econometrics & Finance Education Public Health Social Sciences Other

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AN INTRODUCTION TO DIFFERENT TYPES OF GAS CHROMATOGRAPHY Natasya Teonata; Vania Aurellia Wijaya; Vinkannola Sangdyah Vitaloka; Muhammad Thariq Attamimi; Muliasari Kartikawati
Jurnal Sains dan Terapan Kimia Vol 15, No 1 (2021)
Publisher : Program Studi Kimia, Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (542.198 KB) | DOI: 10.20527/jstk.v15i1.8621

Abstract

Gas Chromatography was first introduced traditionally by James and Martin on 1952. As years went on, gas chromatography was further developed by combining it with other instruments which acts as a detector. In this journal, 5 differents types of Gas Chromatography was discussed. Gas Chromatography Mass Spectrometry (GS-MS), Gas Chromatography-Olfactometry (GC-O), Gas Chromatography-Flame Ionization (GC-FID), Gas Chromatography-Time-of-Flight (GC-TOF) and Multidimensional Gas Chromatography (MDGC). Each type of Gas Chromatography is unique and utilized differently since differs in its detector at the end. The detector is responsible to send electrical signals to the computer to identify the gas that were tested.
Increasing Rosella Farmers Capacity by Double Diamond Design Thinking Approach Pribadi, Florence; Kartikawati, Muliasari; Njoto, Juli Karijati; Sari, Nurul Illahi Kusuma; Nur, Farah Shania
ASEAN Journal of Community Engagement Vol. 6, No. 1
Publisher : UI Scholars Hub

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Abstract

Rosella (Hibiscus sabdariffa Linn) is a well-known family medicinal plant (Toga). Spoilage due to the weather, and the consequent low revenue gained from selling dried rosella are two of the main challenges currently being encountered by rosella farmers. Regardless of previously practicing community engagement including regular training from local authorities, farmers are still encountering difficulties to implement the training materials, consequently experiencing loss. Method incorporated in this community engagement is the double diamond design thinking that ensures putting the farmers first in all stages. Method chosen for drying rosella was a mixed solar dryer equipped with heating lamps and a blower. In addition, a new revenue generating skill was also introduced which included making rosella soap, as the farmers already had access to most of the tools and was a relatively easy process to follow. Farmers were equivalently encouraged to implement the acquired new knowledge as they were involved in every decision-making process, which increased their sense of belonging. After the solar dryer was installed, there were no more spoiled products, and the dried rosella yield was more vibrant in color and shape. Soap production has high conditioning effects and carries potential to bring better revenue compared to selling dried rosella petals. Community intervention can be more fruitful by involving community partner since conception. This program has surpassed the target and partner are happily and willingly continuing the project. This method can be used by other community empowerments doers, especially in horticultural field, as a model for improved farmer knowledge and increased yield, and in the long run to improve national food security.
Co-Authors Florence Pribadi Imanuel D. K. Aji Lorent P. Ridfan Mitha A. P. Handojo Muhammad Thariq Attamimi Natasya Teonata Njoto, Juli Karijati Nur, Farah Shania Sari, Nurul Illahi Kusuma Vania Aurellia Wijaya Vinkannola Sangdyah Vitaloka Yoewono, Jessica Renata