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Hartati
Universitas Negeri Makassar
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Immunology & microbiology Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Physics Social Sciences Other

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Sintesis Nanopartikel Ekstrak Kulit Batang Tanaman Kayu Jawa (Lannea Coromandelica) Tersalut Kitosan Hartati; Fitratul Insaniah Rusli; Andi Mu'nisa; Halifah Pagarra
Bionature Vol. 23 No. 2 (2022): Oktober 2022
Publisher : Jurusan Biologi FMIPA Universitas Negeri Makassar

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Abstract

This study aims to synthesize nanoparticles of Javanese bark extract (Lannea coromandelica) coated with chitosan and characterization of the synthesis results. The extraction of Javanese bark (Lannea coromandelica) was carried out by the maceration method using a 70% ethanol solvent. The bark extract of the Javanese wood plant (Lannea coromandelica) was synthesized to form chitosan-coated nanoparticles using the ionic glassing method and the synthesis results were characterized using X-Ray Difraction (XRD). The results showed that the synthesis of nanoparticles of the bark extract of the Javanese wood plant (Lannea coromandelica) coated in chitosan has a nanoparticle size of 24.9 nm.
Sintesis Nanopartikel Ekstrak Kulit Batang Tanaman Kayu Jawa (Lannea Coromandelica) Tersalut Kitosan Hartati; Fitratul Insaniah Rusli; Andi Mu'nisa; Halifah Pagarra
Bionature Vol. 23 No. 2 (2022): Oktober 2022
Publisher : Jurusan Biologi FMIPA Universitas Negeri Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

This study aims to synthesize nanoparticles of Javanese bark extract (Lannea coromandelica) coated with chitosan and characterization of the synthesis results. The extraction of Javanese bark (Lannea coromandelica) was carried out by the maceration method using a 70% ethanol solvent. The bark extract of the Javanese wood plant (Lannea coromandelica) was synthesized to form chitosan-coated nanoparticles using the ionic glassing method and the synthesis results were characterized using X-Ray Difraction (XRD). The results showed that the synthesis of nanoparticles of the bark extract of the Javanese wood plant (Lannea coromandelica) coated in chitosan has a nanoparticle size of 24.9 nm.
Optimization of Pectin Extraction from Pomelo Peels (Citrus maxima) using Response Surface Methodology Halifah Pagarra; Hartati; Rachmawaty Rachmawaty; Sahribulan Sahribulan
Bionature Vol. 25 No. 1 (2024): April-Juni 2024
Publisher : Jurusan Biologi FMIPA Universitas Negeri Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35580/bionature.v25i1.2340

Abstract

Pectin is an essential polysaccharide that is usually found in the skin of various fruits and vegetables. It acts as a gelling agent and stabilizer in many food and pharmaceutical industries. This study focuses on the potential of grapefruit peel as a source of pectin. Pectin is isolated from hot grapefruit peel powder (albedo). The aim of this study was to extract pectin from grapefruit peel (albedo), and central composite design (CCD) together with the numerical optimization method of response surface methodology (RSM) was used to optimize the processing parameters, including temperature (60, 80 and 100 ° C), pH (1.5, 2.0 and 2.5 ) and time (60, 90 and 120 min) The findings show that the studied parameters have a major impact on the pectin yield. The resulting second-order polynomial model thoroughly explains the relationship between input and output variables and how the data is varied. The highest pectin yield was 28.45% at optimal conditions achieved: temperature: 100° C; pH: 1.5; and extraction time: 120 minutes. Temperature, pH, and extraction time have their own large impact on pectin yield which has a significant effect.
Co-Authors Andi Faridah Arsal Andi Mu'nisa Christie Novri Yanti Dewi Kusumawati Erlin Salino Fadil Muhammad Fajar Harianto Farhani Islami Firdaus Daud Fitratul Insaniah Rusli Halifah Pagarra Hartono Irma Suryani Idris Langi' Muhammad Ilham Wardhana Haeruddin Muhammad Junda Nani Kurnia, Nani Nurhayati Oslan Jumadi Pagarra, Halifah Rachmawaty, Rachmawaty Sahribulan Sahribulan Sahribulan Sahribulan Saparuddin Siti Maulyda Ayu MZ St. Fatmah Hiola Syamsiah Syamsiah Umar Yasser Abd Djawad Yusminah Hala