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All Journal JURNAL KIMIA SAINS DAN APLIKASI BioWallacea Journal of Biological Research JURNAL SAINS KOVALEN: Jurnal Riset Kimia Jurnal Progres Kimia Sains ALCHEMY Jurnal Penelitian Kimia SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan Hydrogen: Jurnal Kependidikan Kimia Jurnal Pengabdian UNDIKMA Hydrogen: Jurnal Kependidikan Kimia Indonesian Journal of Animal Agricultural Science (IJAAS) Jurnal Pengabdian Masyarakat Ilmu Terapan (JPMIT) Jurnal Pijar MIPA Makara Journal of Science
La Ode Kadidae, La Ode
Department Of Chemistry, Faculty Of Mathematics And Natural Sciences, Halu Oleo University, Kendari, Indonesia|Halu Oleo University|Indonesia
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Journal : ALCHEMY Jurnal Penelitian Kimia

 1 
Penentuan Kandungan Fenolik Total Liquid Volatile Matter dari Pirolisis Kulit Buah Kakao dan Uji Aktivitas Antifungi terhadap Fusarium oxysporum Mashuni Pallawagau; Nur Arfa Yanti; M. Jahiding; La Ode Kadidae; Wahyu Ahwarul Asis; Fitri Handayani Hamid
ALCHEMY Jurnal Penelitian Kimia Vol 15, No 1 (2019): March
Publisher : UNIVERSITAS SEBELAS MARET (UNS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (321.36 KB) | DOI: 10.20961/alchemy.15.1.24678.165-176

Abstract

Kulit buah kakao (KBK) adalah limbah organik dari hasil olahan buah kakao yang dapat digunakan sebagai sumber senyawa aktif. Kulit kakao mengandung senyawa selulosa, hemiselulosa dan lignin yang dapat terdekomposisi menghasilkan senyawa fenolik. Penelitian ini bertujuan untuk menentukan kandungan fenolik total atau Total Phenolic Content (TPC) dari liquid volatile matter (LVM) hasil pirolisis KBK dan uji aktivitas antifungi terhadap Fusarium oxysporum. Produksi LVM dihasilkan dari metode pirolisis KBK pada suhu 500 °C. Penentuan TPC dengan metode spektrofotometri UV-Vis menggunakan pereaksi Folin- Ciocalteu (FC) pada panjang gelombang maksimum 765 nm dengan larutan standar asam galat dan diukur setelah dibiarkan selama 60 menit pada suhu kamar. Uji aktivitas antifungi terhadap F. oxysporum dilakukan dengan metode dilusi. LVM dari hasil pirolisis KBK adalah 25,80% (b/b) dengan TPC 100% sebesar 2,28 g/L. Pirolisis KBK menghasilkan LVM yang memperlihatkan aktivitas antifungi dengan konsentrasi hambat minimal (KHM) 1% (v/v) dan konsentrasi bunuh minimal (KBM) 9% (v/v). Oleh karena itu, LVM KBK memiliki potensi untuk diaplikasikan sebagai fungisida alami.Determination of The Total Phenolic Content of Liquid Volatile Matter from Cocoa Pod Husk Pyrolysis and Antifungal Activity Test Against Fusarium oxysporum. The cocoa pod husk (CPH) is an organic waste from the processed cocoa potentially used as source of active compounds. The CPH contains cellulose, hemicelluloses, and lignin compounds that can be decomposed into phenolic compounds. The present study investigated the determination of total phenolic content (TPC) of liquid volatile matter (LVM) of CPH followed by the antifungal activity test against Fusarium oxysporum. The LVM production was performed by the pyrolysis method at temperature of 500 °C. The determination of TPC was evaluated by the UV-Vis spectrophotometric method using the Folin-Ciocalteu (FC) reagent at maximum wavelength of 765 nm with the standart solution of gallic acid measured after 60 min reaction at room temperature. The antifungal activity test against F. oxysporum was carried out by dilution method. The pyrolysis of CPH produces LVM of 25.80% (b/b) contained TPC 100% of 2.28 g/L. The LVM produced in this study shows antifungal activity with a minimal inhibitory concentration (MIC) 1% (v/v) and minimum fungicidal concentration (MFC) 9% (v/v). Therefore, the LVM CPH produced can be applied as a natural fungicide.
Characterization of Methyl Ester Sulfonate (MES) from Mahagony (Swietenia macrophylla King) with Variations in H2SO4 Concentration and Sulfonation Duration Laily Nurliana; La Ode Kadidae; Sunarti Sunarti; Rustam Musta
ALCHEMY Jurnal Penelitian Kimia Vol 17, No 2 (2021): September
Publisher : UNIVERSITAS SEBELAS MARET (UNS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/alchemy.17.2.51613.192-201

Abstract

Methyl ester sulfonate derived from mahogany (Swietenia macrophylla K.) oil has been characterized. The research began by synthesizing mahogany methyl ester (ME) in 4 stages: pressing, degumming, esterification, and transesterification. The next process was synthesizing methyl ester sulfonate (MES) also in four stages: sulfonation, bleaching, neutralization, and drying. The reactant for MES synthesis in this study was H2SO4 with a mole ratio of 1:6 and variations in the concentration of H2SO4 (70%, 75%, 80%, 85%, and 90%) as well as variations in the duration of sulfonation (45, 60, 75, 70, and 105 minutes) to determine the characteristics of the synthesized MES including density, acid number, and emulsion stability. The effect of the combination of treatment variations was analyzed using the two-way ANOVA test and the least significant difference (LSD) test. This research showed that MES from mahogany seed oil from a combination of variations in treatment has a density ranging from 0.91 to 0.97 g/mL where the LSD test at α = 0.05 produces three different MES density groups due to variations in the concentration of H2SO4 namely A (70 % and 75%), B (80% and 85%), and C (90%). The resulting MES acid numbers ranged from 4.69 ‒ 17.74 mgKOH/g sample with three different groups of MES acid numbers due to variations in the concentration of H2SO4, namely A (85 and 90%), B (75% and 80%), and C (70%). The stability of mahogany oil-based MES emulsion ranged from 0.000 ‒ 0.975 and two different MES emulsion stability groups were obtained due to variations in the concentration of H2SO4, namely A (80% and 85%) and B (70%, 75%, and 90%). FTIR spectrophotometer showed the presence of S=O groups at wavenumber 1172 cm-1 and S‒O groups at wavenumbers 972.12 cm-1 and 879.54 cm-1 proved that MES was successfully synthesized.
Co-Authors Aden Mula Pratiwi Alimin Amal Astam Astam, Amal C Bijang Dian Permana, Dian Faariu, Nur Mala Herdi Budiman Ida Usman Ida Usman Ida Usman Ilimu, Edi Imran Jamili Jamili Kadir, Laode Abdul La Aba La Ode Abd Kadir La Ode Adi Parman Rudia La Ode Adi Parman Rudia Laily Nurliana Laily Nurliana Laily Nurliana Laily Nurliana Laily Nurliana Laode Abdul Kadir Laode Abdul Kadir M. Jahiding M. Jahiding Mashuni Mashuni Mashuni Pallawagau Muh. Aksan Dermawan Muh. Natsir Muksar Muksar Nohong Nugrawaty, Andi Laila Nur Arfa Yanti Ramadhan, L.O.A.N. Ruslan Ruslan Ruslin Ruslin Ruslin Ruslin Rustam Musta Setyawati, Arini Sunarti Sunarti Suriana Suriana THAMRIN AZIS Wa Ode Harlis Wahyu Ahwarul Asis Waode Sukmawati Arsyad