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All Journal Indonesia Chimica Acta
mirnawati mirna
universitas teknologi sulawesi
Chemical Engineering, Chemistry & Bioengineering

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Terpenoid Compounds of Lime (Citrus Aurantifolia) Peel by Using Gas Chromatography Mass Spectrometry (GCMS) Method mirnawati mirna
Jurnal Akta Kimia Indonesia (Indonesia Chimica Acta) Volume 14, No 2: December 2021
Publisher : Hasanuddin University

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Abstract

Terpenoid compounds known as essential oils can be used as flavour enhancers and medicinal sources. The Citrus genus is a citrus aurantifolia species. Citrus aurantifolia (Rutaceae) is a fruit type most often consumed by the public. This study aimed to determine the terpenoid compounds contained in lime peel extract (C. aurantifolia). This study used the extraction method for 3 x 24 hours and then continued by using a sonicator. The viscous extract was then analyzed by using a GCMS method. This study obtained that the β-pinene compound for the retention time was 7.92, and the per cent area was 34.81 %. While for the D-limonene compound for the retention time was 6.62, and the per cent area was 20.15 %
Quality Test of Corn Flour from Pulut Corn Cob Waste ( Zea mays ceratina. L) by Fermentation mirnawati mirna
Jurnal Akta Kimia Indonesia (Indonesia Chimica Acta) Volume 15, No 2: December 2022
Publisher : Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20956/ica.v15i2.18405

Abstract

Pulut type corn or waxy corn has been developed in several areas in South Sulawesi. From year to year, the productivity of corn pulut has increased, this also shows that agricultural waste production has also increased. The agricultural waste produced by corn cobs. The purpose of this study was to determine the processing of corncob waste into cornflour and to determine the characterization of the quality of cornflour, especially microbial contamination based on SNI standards. Methods: water content using a gravimetric method, ash content using a gravimetric method, microbial contamination test using ALT method of 25-250 colonies/gram counted, and analysis of mold and E. coli bacteria. The results showed that the ash content was 0.0766%, 17.49 % moisture content, 17.49% protein content, ALT 1.9 x 106, mold analysis of 10,4 x 102 colonies/gram, and analysis of E. coli bacteria amounting to 8,1 APM / g and Bacillus cereus with a resistance value of <1.0 x 102coloni/g (negative value) indicates that it does not meet the SNI standard.
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