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H. P. V. Rupasinghe

Publications (4)

Optimization of Polyphenols and Carotenoids Extraction from Leaves of Cassia auriculata for Natural Health Products

K. D. P. P. Gunathilake, K. K. D. S. Ranaweera & H. P. V. Rupasinghe · Asian Plant Research Journal · 2020

Aims: C. auriculata leaves contains polyphenols and carotenoids and also it posses various antioxidant activities towards free radical scavenging, lipid peroxidation inhibition and reducing potential. The present study investigated the optimization of polyphenols and carotenoids...

Open access Research Article 10.9734/aprj/2020/v6i130118

Optimizing the Extraction of Bioactive Compounds from Leaves of Gymnema Lactiferum, an Edible Green Leafy Vegetable

K. D. P. P. Gunathilake, K. K. D. S. Ranaweera, H. P. V. Rupasinghe & R. M. T. R. K. Rathnayaka · South Asian Research Journal of Natural Products · 2018

Gymnema lactiferum is a leafy vegetable which contains phenolics and carotenoids and also possesses many health benefits such as antidiabetic properties. Response surface methodology (RSM) has been used to optimize the extraction parameters for the recovery of total phenolic comp...

Open access Research Article

Response Surface Optimization of Extraction of Polyphenols and Carotenoids from Sesbania grandiflora Leaves with Ethanol-water System

K. D. P. P. Gunathilake, K. K. D. S. Ranaweera, H. P. V. Rupasinghe, O. D. A. N. Perera & H. P. S. Jayaweera · Asian Journal of Biotechnology and Bioresource Technology · 2017

Response Surface Optimization of Extraction of Polyphenols and Carotenoids from Sesbania grandiflora Leaves with Ethanol-water System  Aim: Response surface methodology was employed to optimize the extraction parameters for the extraction of total phenolics and carotenoids from l...

Open access Research Article 10.9734/AJB2T/2017/38282

Optimization of Phenolics and Carotenoids Extraction from Leaves of Passiflora edulis Using Response Surface Methods

K. D. P. P. Gunathilake, K. K. D. S. Ranaweera & H. P. V. Rupasinghe · Asian Journal of Biotechnology and Bioresource Technology · 2017

The optimum extraction conditions for the highest recovery of total phenolics and carotenoids contents for leaves of Passiflora edulis were developed using response surface methodology. The effects of solvent concentration (30-100%), extraction temperature (30-60°C) and extractio...

Open access Research Article 10.9734/AJB2T/2017/33480