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Khoirul Ngibad
Study Program of Medical Laboratory Technology, Faculty of Health, Universitas Maarif Hasyim Latif
Biochemistry, Genetics & Molecular Biology Chemistry Mathematics Physics

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Determination of percentage yield and total phenolic content of ethanol extract from purple passion (Passiflora edulis f. edulis Sims) fruit peel Sisminnitah Dewi Nofita; Khoirul Ngibad; Achmad Fathoni Rodli
Jurnal Pijar Mipa Vol. 17 No. 3 (2022): May 2022
Publisher : Department of Mathematics and Science Education, Faculty of Teacher Training and Education, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (215.544 KB) | DOI: 10.29303/jpm.v17i3.3461

Abstract

Free radicals can trigger various diseases, such as cancer, cardiovascular, arthritis, diabetes, neurological disorders, and aging. Thus, antioxidants are needed to reduce these free radicals. The peel of the purple passion fruit (Passiflora edulis f. edulis Sims) has many phenolic compounds that indicate antioxidant capacity. This study aims to determine the percentage yield and total phenolic contents in the ethanol extract of purple passion fruit peel. Extraction of purple passion fruit peel using the method of maceration with ethanol solvent. Measurement of total phenolic levels in ethanol extract from purple passion fruit peel using the UV–Vis Spectrophototometry method with Folin-Ciocalteu reagent. The principle of this method is based on the reagent between gallic acid and the Folin-Ciocalteu reagent that will produce a molybdenum-tungsten complex. Furthermore, the addition of Na2CO3 solution will change the color of the solution to blue, and its absorbance can be measured at a wavelength of 765 nm. The results showed that the ethanol extract from purple passion fruit peel yielded 1.363% and total phenolic levels of 30.758 mg of gallic acid equivalent per the gram of extract. The existence of the total phenolic content proves that the ethanol extract from purple passion fruit peel has the potential to be used as an alternative source of natural antioxidants.
Determination of flavonoid content of ethanol and ethyl acetate extract from purple passion fruit peel Siti Delta Aisyah; Khoirul Ngibad
Jurnal Pijar Mipa Vol. 17 No. 5 (2022): September 2022
Publisher : Department of Mathematics and Science Education, Faculty of Teacher Training and Education, University of Mataram. Jurnal Pijar MIPA colaborates with Perkumpulan Pendidik IPA Indonesia Wilayah Nusa Tenggara Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpm.v17i5.3463

Abstract

Purple passion fruit is a fruit that is widely cultivated in Indonesia for syrup and juice making. Purple passion fruit has a high nutritional value, such as antioxidants. Passion fruit contains vitamin A, vitamin C, β-carotene, flavonoid, and fiber components. However, passion fruit peel is a waste that can not be appropriately facilitated, so it becomes a waste that can pollute the environment. In addition, the passion fruit peel contains flavonoids that can be used as antidiabetic drugs. This study aimed to determine the difference in flavonoid levels in the peel extract of purple passion fruit by using ethanol and ethyl acetate solvents. The total flavonoid test using the AlCl3 method is then read on a UV-Vis spectrophotometer. The results showed total flavonoid levels of passion fruit peel extract with ethanol and ethyl acetate solvents of 15.01 mg QE/g samples and 1.27 mg QE/g extract. The highest total flavonoid levels were obtained in ethanol extract of 15.01 mg QE/g extract.
Co-Authors Achmad Fathoni Rodli Sisminnitah Dewi Nofita Siti Delta Aisyah