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All Journal Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management) FITOFARMAKA: Jurnal Ilmiah Farmasi
Nining, Euis
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Agriculture, Biological Sciences & Forestry Chemistry Earth & Planetary Sciences Environmental Science Medicine & Pharmacology

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Comparison of Maceration and Ultrasound-Assisted Extraction Method in Determining Quercetin Content of Clitoria ternatea L. Flowers Wardatun, Sri; Ahyar, Akmal Zainul; Nining, Euis
FITOFARMAKA: JURNAL ILMIAH FARMASI Vol 14, No 1 (2024): FITOFARMAKA: Jurnal Ilmiah Farmasi
Publisher : Universitas Pakuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33751/jf.v14i1.10043

Abstract

Butterfly pea flowers (Clitoria ternatea L.) contain the compound quercetin which has been studied extensively. Butterfly pea flowers have shown various pharmacological activities. The extraction method has an impact on the amount of active compound extracted. The aim of this research was to determine the effect of different extraction methods on quercetin content of C. ternatea L flowers using the High-Performance Liquid Chromatography (HPLC).  The HPLC system uses an ODS-3 column stationary phase; a mobile phase mixture of 0.1 % orthophosphoric acid and methanol (36:64); a flow rate of 1.2 mL/min; and a PDA-UV detector. The extraction methods used were maceration, and ultrasound-assisted extraction (UAE) using methanol as a solvent. The results showed that the quercetin content of C. ternatea L flower extract with maceration method results was 1.0669 ± 0.0283 mg/g and with UAE method was 1.3915 ± 0.1789 mg/g. Statistical test results showed that differences in both extraction method did not have a significant effect on quercetin content. However, the UAE method is considered more efficient in terms of extraction time, so the UAE method can be used as an alternative for extracting quercetin from C. ternatea L. flowers.
Profil Residu Insektisida Organofosfat di Kawasan Produksi Bawang Merah (Allium Ascalonicum L.) Kabupaten Brebes Jawa Tengah Nining, Euis; Nazli, Rizal Sjarief Sjaiful; Mas’ud, Zainal Alim; Machfud, Machfud; Sobir, Sobir
Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management) Vol 9 No 4 (2019): Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan
Publisher : Pusat Penelitian Lingkungan Hidup, IPB (PPLH-IPB) dan Program Studi Pengelolaan Sumberdaya Alam dan Lingkungan, IPB (PS. PSL, SPs. IPB)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jpsl.9.4.999-1009

Abstract

Excessive use of pesticides can have an impact on the environment, including the loss of pesticide residues in soil and agricultural products. The purpose of this study was to determine the spreading of organophosphate pesticide residues in the shallot production area of  Brebes Regency, Central Java. Research locations were two districts selected by purposive sampling based on production area, namely Kersana and Wanasari Districts. Organophosphate compounds analyzed include chlorpyrifos, paration, profenofos, diazinon, fenitrotion, metidation and malation. Organophosphate residue analysis was carried out on seven soil samples and seven shallot products. Pesticide residue analysis was carried out using the standard method by using a gas chromatography device with an electron capture detector. Based on analysis, seven residues of organophosphate pesticides were chlorpyrifos, paration, profenofos, diazinon, fenitrotion, metidation and malation, spread in Kersana District, and six  pesticides residues (except profenofos) spread in Wanasari District. In soil samples, the highest residues obtained in two districts were chlorpyrifos compounds, chlorpyrifos compounds in Kersana District was higher than Wanasari District. In the shallot sample, the highest residues in two districts are diazinon compounds, diazinon compounds in the sample of Kersana District was  higher than Wanasari District. There were  several samples of shallot product contained organophosphate residue  exceed the maximum concentration of residual limit (RML).
Co-Authors Ahyar, Akmal Zainul Machfud Machfud Mas’ud, Zainal Alim Nazli, Rizal Sjarief Sjaiful Sobir Sobir Sri Wardatun