Indonesian Journal of Biological Pharmacy
Vol 5, No 3 (2025): IJBP (Desember)

Green Extraction of Kleinhovia hospita Saponins: Superiority of Microwave Irradiation over Maceration and the Critical Role of Solvent Polarity

Hikmawan, Baso Didik (Unknown)
Khotimah, Khusnul (Unknown)
Permana, Mutia Ramadhani Rose (Unknown)
Ahmad, Islamudin (Unknown)
Febrina, Lizma (Unknown)
Arifuddin, Muhammad (Unknown)
Ibrahim, Arsyik (Unknown)
Salam, Supriatno (Unknown)



Article Info

Publish Date
31 Dec 2025

Abstract

Kleinhovia hospita is a hepatoprotective plant rich in bioactive saponins, yet conventional extraction methods remain inefficient. This study aimed to optimize saponin recovery by comparing Microwave-Assisted Extraction (MAE) against conventional maceration and assessing the effect of solvent polarity. Saponins were extracted using MAE (15 minutes) and maceration (72 h) with various ethanol concentrations ranging from 0 to 96%. Total Saponin Content (TSC) was quantified colorimetrically using the vanillin-sulfuric acid method. MAE significantly outperformed maceration, attaining a two-fold increase in saponin purity (106.67 and 52.92 mg Diosgenin Equivalent (DE)/g extract, respectively) in a fraction of the time. Solvent analysis revealed a trade-off: whereas 96% ethanol yielded the highest specific purity (133.89 mg DE/g), it resulted in low mass recovery. In contrast, 50% ethanol extracted the highest Total Saponin Yield (TSY) (18.84 mg/g powder), effectively balancing matrix swelling with solubility. MAE utilizing 50% ethanol is identified as the optimal, rapid, and green strategy for the industrial production of standardized K. hospita extracts.

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Journal Info

Abbrev

ijbp

Publisher

Subject

Biochemistry, Genetics & Molecular Biology Health Professions Immunology & microbiology Medicine & Pharmacology

Description

Indonesian Journal of Biological Pharmacy (Jurnal Biologi Farmasi Indonesia) adalah publikasi ilmiah pada seluruh aspek Biologi Farmasi. Jurnal ini diterbitkan 3 kali setahun untuk menyediakan forum bagi apoteker, dan profesional kesehatan lainnya untuk berbagi praktik terbaik, meningkatkan jaringan ...