Chemistry: Recent submissions

Now showing items 41-60 of 445

Surface modification of Trema orientalis wood biochar using natural coconut vinegar and its potential to remove aqueous calcium ions: column and batch studies

Udawatta, M.; De Silva, R.; De Silva, D. (Environmental Engineering Research, 2021)

Recent investigations have revealed the harmful health effects of elevated calcium levels in drinking water. Chemically activated biochar is the most popular option for low-cost cation adsorption. However, most of these ...
Phenolic antioxidants in coconut oil: Factors affecting the quantity and quality. A review

Jayathilaka, N.; Seneviratne, K. (Grasas Y Aceites, 2022)

The total phenol content (TPC) in coconut oil varies with extraction method, variety, nature of coconut kernel components and geographical origin. Commonly reported TPCs of coconut oils extracted by dry methods and wet ...
Apoferritin and Dps as drug delivery vehicles: Some selected examples in oncology

Kuruppu, A. I.,; Turyanska, L.; Bradshaw, T. D.; Manickam, S.; Galhena, B. P.; Paranagama, P.; De Silva, R. (Biochimica Et Biophysica Acta (BBA), 2022)

Background: The ideal nanoparticle should be able to encapsulate either pharmaceutical agents or imaging probes so that it could treat or image clinical tumours by targeting the cancer site efficiently. Further, it would ...
Bioactive Properties and Metabolite Profiles of Endolichenic Fungi in Mangrove Ecosystem of Negombo Lagoon, Sri Lanka

Weerasinghe, R. H.; Maduranga, K.; Attanayake, R. N.; Shevkar, C.; Kate, A. S.; Weerakoon, G.; Kalia, K.; Paranagama, P. (Natural Product Communications, 2022)

Endolichenic fungi (ELF) serve as a novel source of natural products with distinctive bioactivities. A total of 58 ELF isolated from 29 lichens collected from mangrove and mangrove-associated plants of Negombo lagoon, Sri ...
Bioprospecting of an Endolichenic Fungus Phanerochaete sordida Isolated from Mangrove-Associated Lichen Bactrospora myriadea

Weerasinghe, R. H.; Shevkar, C. D.,; Maduranga, K.; Pandey, K. H.; Attanayake, R. N.; Kate, A. S.; Weerakoon, G.; Behera, S. K.; Kalia, K. S.; Paranagama, P. A. (Journal of Chemistry, 2022)

Bioassay-guided fractionation of the ethyl acetate extract of Phanerochaete sordida, an endolichenic fungus (ELF) isolated from the host lichen Bactrospora myriadea, collected from Negombo lagoon, Sri Lanka, led to the ...
Cytotoxic Bioxanthracene and Macrocyclic Polyester from Endolichenic Fungus Talaromyces pinophilus: In-Vitro and In-Silico Analysis

Shevkar, C.; Armarkar, A.; Weerasinghe, R.; Maduranga, K.; Behera, S.K.; Kalia, Kiran; Paranagama, P.; Kate, A. S.; Pandey, K. (Indian J Microbiol, 2022)

Lichens are used in folklore medicines across the globe for wound healing and to treat skin disorders and respiratory diseases. They are an intricate symbiosis between fungi and algae with the domination of fungal co ...
Exploration of Potent Cytotoxic Molecules from Fungi in Recent Past to Discover Plausible Anticancer Scaffolds

Shevkar, C.; Pradhan, P.; Armarkar, A.; Pandey, K.; Kalia, K.; Paranagama, P.; Kate, A. S. (Chemistry & Biodiversity, 2022)

Fungi are known to produce diverse scaffolds possessing unique biological activities, however, to date, no molecule discovered from a fungal source has reached the market as an anti-cancer drug. Every year number of cytotoxic ...
Guide to Protein Purification

Bandumathie Weerasooriya, M.K. (2022)
Variation of catechin and caffeine content in exotic collection of tea [Camellia sinensis (L.) O. Kuntze] in Sri Lanka and potential implication in breeding cultivars with enhanced quality and medicinal properties

Kottawa-Arachchi, J. D.; Ranatunga, M.A.B.; Amarakoon, A.M.T.; Gunasekare, M.T.K.; Attanayake, R.N.; Sharma, R.K.; Chaudhary, H.K.; Sood, V.K.; Katoch, R.; Banyal, D.K.; Piyasena, K.G.M.P.; Edirisinghe, E.N.U. (Food Chemistry Advances, 2022)

Tea leaves are rich in diverse metabolites with medicinal importance. The quality of made tea is largely depended on the qualitative and quantitative attributes of key metabolites. The aim of the present study was to ...
Anti-microbial Nanohybrids Based on Naturally Derived Citric Acid Intercalated Layered Double Hydroxides

Kuruppu, Shashikala; Rathnayake, Upendra; de Silva, Madhavi; Rupasinghe, Thilini; Sandaruwan, Chanaka (Kuruppu et al/ Current Scientia, 2021)

Currently, there is an increased demand for advanced food packages, which can significantly increase the shelf life of food items. In the current context, it is envisaged that nanotechnology has the potential to address ...
Antibacterial Polyketide from Lasiodiplodia theobromae and Pyrenula bahiana on Mangrove Ecosystems in Puttalam Lagoon, Sri Lanka

Paranagama, P.A.; Santhirasegaram, S.; Wickramarachchi, S.R.; Attanayake, R.N.; Weerakoon, G.; Maduranga, K. (Asian Journal of Chemistry, 2022)

Lasiodiplodia theobromae is one of the frequently isolated fast growing endolichenic fungus. This fungus was isolated from the lichen host, Pyrenula bahiana collected from the mangrove ecosystems in Puttlam lagoon and its ...
ANTIOXIDANT ACTIVITY OF PHENOLIC COMPOUNDS IN Dioscorea alata L. (RAJA ALA) TUBER COOKING WATER

Amarasekara, R.; Wickramarachchi, S. R. (ACTA CHEMICA IASI, 2021)

Nutritional compounds in yams may leach out to the cooking water under most traditional domestic cooking methods. Finding alternative uses of these waste waters without discarding, can maximize the usage and importance ...
Lemongrass Oil Containing Chitosan Microcapsules by Ionotropic Gelation

Paragodaarachchi, Y.L.; Wickramarachchi, S.R. (Asian Journal of Chemistry, 2022)

Ionotropic gelation using sodium tripolyphosphate (STPP) as the crosslinker was successfully used to formulate lemongrass oil containing chitosan microcapsules. Formation of oil in aqueous chitosan polymer solution was ...
Antioxidant Capacity and Nutritional Value of Peels and Seeds of Selected Pomegranate (Punica granatum L.) Cultivars from Sri Lanka

Panapitiya, P. D. S. N. H.; Weerasooriya, M. K. B.; Punchipatabendhi, T. I. (The Journal of Agricultural Sciences - Sri Lanka, 2022)

Purpose: Nonedible portion of Pomegranate is reported to be rich with a diverse range of phytochemicals which embrace with health promotive features. Though antioxidant power and nutritive value of fruit juice are well ...
Comprehensive Groundwater Quality Analysis in Chronic Kidney Disease of Unknown Etiology (CKDu) Prevalence Areas of Sri Lanka to Investigate the Responsible Culprit

Fernando, T. D.; Arachchige, Yohan L. N. Mathota; Sanjeewani, K. V. P.; Rajaguru, R. A. M. T. S. (Journal of Chemistry, 2022)

Chronic kidney disease of unknown etiology (CKDu) is a serious health problem in Sri Lanka especially among agricultural communities in dry zone since 19th century. In the present study, several water quality parameters ...
Chemical composition and anti-diabetic activities in two novel accessions of Cinnamon (Cinnamomum zeylanicum) leaves grown in Sri Lanka

Sonali, Nimarsha; Jayawardena, Bimali (Asian J Agric & Biol., 2022)

Diabetes Mellitus is a major health concern in many countries. Although there are many synthetic drugs to manage diabetes, most of them are associated with many side effects. Hence there is attention to the use of natural ...
Bioprospecting of an Endolichenic Fungus Phanerochaete sordida Isolated from Mangrove-Associated Lichen Bactrospora myriadea

Weerasinghe, R. H.; Shevkar, C. D.; Maduranga, K.; Pandey, K. H.; Attanayake, R. N.; Kate, A. S.; Weerakoon, G.; Behera, S. K.; Kalia, K. S.; Paranagama, P. A. (Journal of Chemistry,, 2022)

Bioassay-guided fractionation of the ethyl acetate extract of Phanerochaete sordida, an endolichenic fungus (ELF) isolated from the host lichen Bactrospora myriadea, collected from Negombo lagoon, Sri Lanka, led to the ...
Antibacterial polyketide from Lasiodiplodia theobromae, inhabiting the lichen host, Pyrenula bahiana on mangrove ecosystems in Puttalam lagoon, Sri Lanka

Paranagama, P. A.; Santhirasegaram, S.; Fathima, M. M. A.; Wickramarachchi, S. R.; Attanayake, R. N.; Weerakoon, G.; Maduranga, K. (Asian Journal of Chemistry, 2022)

Lasiodiplodia theobromae is one of the frequently isolated fast growing endolichenic fungus. This fungus was isolated from the lichen host, Pyrenula bahiana collected from the mangrove ecosystems in Puttlam lagoon and ...
Application of Electronic Nose to Predict the Optimum Fermentation Time for Low-Country Sri Lankan Tea

Sharmilan, T.; Premarathne, I.; Wanniarachchi, I.; Kumari, S.; Wanniarachchi, D. (Journal of Food Quality, 2022)

The fermentation stage is vital during the black tea manufacturing process to produce the best-quality tea. The oxidation of tea biochemical compounds results in the appearance of characteristic smell peaks during the ...
Peel of pineapple (Ananas comosus) as a potential source of antioxidants and photo-protective agents for sun protection cosmetics

Samarakoon, Samarakoon Mudiyanselage Gayomi Kanchana; Rajapakse, Chandima Shashikala Kumari (Medicinal Plants, 2022)

The present study was aimed to evaluate the antioxidant activity and photo-protective property of methanolic extract of pineapple peel to study its potential as a natural source in sun protection cosmeceutical products. ...

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