Skip to content
K

K. D. P. P. Gunathilake

Publications (13)

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

Optimization of Water Based-extraction Methods for the Preparation of Bioactive-rich Ginger Extract Using Response Surface Methodology

K. D. P. P. Gunathilake & H. P. Vasantha Rupasinghe · European Journal of Medicinal Plants · 2014

Aims: Evaluation of three extraction methods to prepare bioactive-rich ginger extract for incorporation into a functional beverage. Study Design: Response surface methodology. Methodology: For the preparation of bioactive-rich ginger extract with water, conventional hot water ext...

Open access Research Article 10.9734/EJMP/2014/10322

Evaluation of Antioxidant Activity and Polyphenolic Content of Commonly Consumed Egg Plant Varieties and Spinach Varieties in Sri Lanka

H. A. C. O. Hettiarachchi, K. D. P. P. Gunathilake & Sharmila Jayatilake · Asian Journal of Research in Biochemistry · 2020

Aims: To evaluate the antioxidant capacity and the polyphenolic content of commonly consumed egg plant varieties and spinach varieties in Sri Lanka, in order to screen the potential for utilizing them in developing of functional food products. Study Design: Complete randomized de...

Open access Research Article 10.9734/ajrb/2020/v7i430149

Potential Applications of Cereals and Yams as Functional Foods to Reduce the Risk of Chronic Non-Communicable Diseases

N. N. G. Chiranthika, K. D. P. P. Gunathilake & Ananda Chandrasekara · Asian Journal of Research in Biochemistry · 2020

The chronic non-communicable diseases (NCD) are increasing throughout the populations and the burden of diseases is rising globally. Epidemiological evidences supports claim that intake of   foods with certain health benefits and reducing the risk of NCDs are having positive corr...

Open access Research Article 10.9734/ajrb/2020/v7i430148

Isolation and Characterization of Arabinoxylan from Leaves of Neolitsea cassia (L) Kosterm and Evaluation of Its Physicochemical and Functional Properties

W. S. Jeewanthi & K. D. P. P. Gunathilake · South Asian Research Journal of Natural Products · 2020

Aims: Arabinoxylan is a complex non-starchy polysaccharide classified under dietary fiber group which mainly contains the cell wall of the cereals. In the food industry, commercially available arabinoxylan is used as a gelling agent, thickener, stabilizer and emulsifier. Leaves o...

Open access Research Article

Characterization and Comparison of Alkali Extracted Starches from Selected Cereals and Tubers

H. D. K. C. Wijesinghe & K. D. P. P. Gunathilake · Asian Plant Research Journal · 2020

Aims: Starch is used in the food industry to impart functional properties and to modify food texture and consistency. In this study starches isolated from six sources using an alkali extraction method were evaluated for physicochemical properties. Study Design: Complete randomize...

Open access Research Article 10.9734/aprj/2020/v5i130096

Development of Healthy Fiber-Rich Herbal Crackers from Whole Wheat, Finger Millet, Rice Bran, and Gymnema sylvestre Leaves

S. Ramiya, G. Janarny & K. D. P. P. Gunathilake · South Asian Research Journal of Natural Products · 2022

Crackers are considered as healthy snacks as they have low level of salt, sugar, and moderate level of fat. This study aimed to develop healthy fiber-rich herbal crackers from whole wheat, finger millet, rice bran, and Gymnema sylvestre leaves. Crackers were made with four differ...

Open access Research Article

Evaluation of Sensory, Nutritional, Physicochemical, Cooking, Textural, and Bioactive Properties of Kappaphycus alvarezii Powder Incorporated into Dried Noodles

S. Simmaky, S. Srivarathan, R. G. S. Wijesekara & K. D. P. P. Gunathilake · Asian Journal of Food Research and Nutrition · 2026

This study focused on the development of red seaweed (Kappaphycus alvarezii) incorporated noodles and the evaluation of their properties. Different proportions of seaweed powder (3 %, 6 %, 9 % and 12 %; w/w) were substituted to obtain seaweed-incorporated noodles, and noodles wit...

Open access Research Article 10.9734/ajfrn/2026/v5i2381

Plant Bioactives and Biotechnological Approaches to Enhance Their Production and Bioactivity

G. Janarny, H. A. C. O. Hettiarachchi, N. N. G. Chiranthika & K. D. P. P. Gunathilake · Asian Journal of Biotechnology and Genetic Engineering · 2022

Plants considered as an excellent source for discovering new compounds with medicinal significance in drugs/ functional foods/ nutraceutical formulations. Bioactive compounds of found in plants are those secondary metabolites exhibiting health benefit in human. It is obvious that...

Open access Research Article

Granule Morphology and Physicochemical Properties of Flours of Three Yams Species: Colocasia esculenta, Xanthosoma sagittifolium and Plectranthus rotundifolius

H. A. C. O. Hettiarachchi, V. P. N. Prasadi, A. M. M. U. Adikari & K. D. P. P. Gunathilake · South Asian Research Journal of Natural Products · 2020

Aims: Colocasia esculenta (Gahala), Xanthosoma sagittifolium (Kiriala) and Plectranthus rotundifolius (Innala) are three underutilized yam varieties in Sri Lanka, which have not been exploited sufficiently for various aspects in the food industry. Therefore, the research was cond...

Open access Research Article