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All Journal Indonesia Natural Research Pharmaceutical Journal (INRPJ) Journal of Agritechnology and Food Processing
Sahila, Dinda
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemistry Immunology & microbiology Medicine & Pharmacology Public Health

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Penentuan Kualitas Minyak Goreng Bekas Setelah Penambahan Adsorben Alami dari Bonggol Jagung dan Ampas Tebu Permatasari, Ni Made Ayu Dinda; Hasanah, Nunung Uswatun; Setiawan, Wahyu Aldi; Diba, Asmara Yauma Putri Farah; Sahila, Dinda; Wulandari, Hesti; Muliasari, Handa
Journal of Agritechnology and Food Processing Vol 1, No 2 (2021)
Publisher : UNIVERSITAS MUHAMMADIYAH MATARAM

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1523.553 KB) | DOI: 10.31764/jafp.v1i2.6973

Abstract

Continuous and repeated use of cooking oil at high temperatures accompanied by air and water contact can result in a hydrolysis reaction. The quality of the oil can be determined by carrying out the procedure for determining the free fatty acid content (FFA). Used cooking oil can be purified using an adsorbent/absorbent. Sugarcane bagasse and corn cobs have been widely used as adsorbents, but there has been no study comparing the increase in oil quality with these two adsorbents. This study aims to compare the color of the used cooking oil immersion with bagasse adsorbent and corncob charcoal adsorbent and determine the value of FFA levels of used cooking oil before and after soaking with bagasse adsorbent and corncob charcoal arsoben. The method used is fatty acid adsorption method and alkalimetric titration. From the observations, it was found that the color of the used cooking oil was fading after soaking with 3 types of adsorbents. The color of the immersion with a mixture of 1:1 adsorbent corncob charcoal and bagasse has the highest brightness level. FFA levels of used cooking oil after soaking also decreased from 0.207% to 0.141%; 0.132 %; and 0.094 %. The FFA content of used cooking oil by immersion in a 1:1 mixture of corn cob charcoal and bagasse was the lowest, which means the oil has the highest quality. It can be concluded that a mixture of 1:1 adsorbent of bagasse and corncob charcoal is the best adsorbent.
DETERMINATION OF TOTAL PHENOLIC LEVELS OF EXTRACTS AND FRACTIONS OF KEPUNDUNG LEAVES (Baccaurea racemosa) sahila, Dinda
INDONESIA NATURAL RESEARCH PHARMACEUTICAL JOURNAL Vol 9, No 2 (2024)
Publisher : Fakultas Farmasi Universitas 17 Agustus 1945 Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52447/inrpj.v9i2.7208

Abstract

Baccaurea racemosa is one of the medicinal plants whose leaves are empirically used to treat diarrhea and launch menstruation. This activity was obtained because B. racemosa leaves contain metabolite compounds such as flavonoids and phenolics. Several studies have shown that the phenolic compounds contained in B. racemosa leaf extract have potential antioxidant activity. However, research on the levels of total phenolic compounds contained in the extract and fractions of Kepundung leaves (B. racemosa) has not been sufficient. Therefore, this research was conducted to determine the levels of total phenolic compounds contained in the extracts and fractions of Kepundung leaves (B. racemosa). Withdrawal of compounds was carried out using the sonication method with 96% ethanol solvent and liquid-liquid partitioning with n-hexane, ethyl acetate, and distilled water. The extracts and fractions obtained were analyzed for their metabolite profiles by test tube and total phenolic content by UV-Vis spectrophotometry. The obtained total phenolic content was then analyzed statistically using the one-way analysis of variance (ANOVA) method and followed by the Tukey test. Test-tube results showed that extracts and fractions of Kepundung leaves contained phenolic compounds, flavonoids, steroids and saponins. The total phenolic content in the 96% ethanol extract, n-hexane fraction, ethyl acetate, and distilled water respectively were 419.153 ± 1.80; 115.589 ± 1.68; 244,359; and 334.512 ± 1.29 mg gallic acid equivalent (GAE)/gram extract and fraction. The statistical test results showed that all samples had significantly different phenolic levels.
Co-Authors Diba, Asmara Yauma Putri Farah Hasanah, Nunung Uswatun Hesti Wulandari Muliasari, Handa Permatasari, Ni Made Ayu Dinda Setiawan, Wahyu Aldi