http://repository.wyb.ac.lk/handle/1/3056 2026-05-08T14:16:51Z http://repository.wyb.ac.lk/handle/1/3592 Physicochemical Characteristics, Tannin Content and Sensory Attributes of the Cashew Apple of Eight Cashew (Anacardium occidentale L.) Varieties Grown in Sri Lanka Walgama, H.W.D.D.; Walakuluge, H.P; Gunasekara, S.G.V.D.H; Ratnayake, RH.M.K; Eeswara, J.P; Herath, H.M.S.P. 2020-11-18T00:00:00Z http://repository.wyb.ac.lk/handle/1/3591 Atmospheric Pressure Plasma Treatment as a Cost Effective and Eco-Friendly Pre-Treatment Method to Enhance Seed Perfomance in Germination and Early Seedling Growth Hendeniya, N; Sandanuwan, T; Amarasinghe, D.A.S; Attygalle, D; Weragoda, S.C; Ranaweera, B; Rathnayake, K; Lalanka, M Novel methods of improving the seed quality have gained a lot of attention recently, cold atmospheric pressure plasma being one of the most promising methods. The effects of cold atmospheric pressure plasma treatment of chili - MI 2 (Capsicum annuum L.) and snake gourd - MI short (Trichosanthes cucumerina) seeds have been compared with a conventional fungicide seed coating and a biological coating treatment. The plasma exposure times used were 4min, 6min and 10min. Cold atmospheric pressure plasma treatment has shown improved effects on seed germination for both Capsicum annuum L. and Trichosanthes cucumerina seeds. Both seed types showed the best germination results under 6 min treatment while displaying the best Seed Vigor Index through 4 min plasma treatment. Compared with the coating treatments, cold atmospheric pressure plasma has shown a significant stimulation in seed germination and early growth. 2021-01-01T00:00:00Z http://repository.wyb.ac.lk/handle/1/3590 Non-thermal atmospheric pressure plasma: An alternative method to enhance the seed quality in long bean-KPN (Vigna unguiculate L.) seeds Hendeniya, N; Sandanuwan, T; Attygalle, D; Amarasinghe, D.A.S; Weragoda, S; Ranaweera, B; Ratnayake, K; Lalanka, M Non-thermal atmospheric pressure plasma treatment has emerged as a promising potential seed quality enhancement method over recent years. This study focuses on the effect of atmospheric pressure plasma treatment on seed germination and growth of Long Bean-KPN (Vigna unguiculata L.) seeds under labora tory conditions. In this study, the Long Bean seeds were exposed to a dry air non-thermal atmospheric pressure plasma for different periods between 4 and 10 min to study its effect on seed germination and growth behavior. It was observed that Germination percentage and Seed Vigor Index were negatively affected by plasma treatment for more than 6 min. The performance of seeds treated for 4 min had a slight improvement in germination over the control specimen, while it showed a significant improve ment in average seed vigor index. The study confirmed that non-thermal atmospheric pressure plasma treatment can be stimulatory for seed germination and growth of Vigna unguiculate L. seeds if exposed to plasma for periods less than 4 min and it can be inhibitory for the purpose if exposure time exceeds 6 min. Copyright 2021 Elsevier Ltd. All rights reserved. Selection and peer-review under responsibility of the scientific committee of the International Confer ence on Applied Research and Engineering 2021 2021-01-01T00:00:00Z http://repository.wyb.ac.lk/handle/1/3504 Aloe vera Gel Coating to Enhance Shelf life of Papaya (Carica papaya L.) DEWAGEDARA, D.M.A.E.I.; WIJESINGHE, S.A.E.C.; RATHNAYAKE, R.H.M.K. Edible coating is a novel method which can be used to enhance shelf life of fruits. Therefore, this study was carried out to develop an edible coating from Aloe vera leaf gel to extend the shelf life of papaya (Carica papaya L.) fruits. Four different concentrations (0, 33, 66 and 100%) of A. vera gel solutions were evaluated. A. vera gel extracted from fresh leaves was used to prepare different treatments after pasteurization (70 0C at 45 min) and pH adjustment. Gel solutions were equally applied to fruits as two coats and they were stored under room temperature (32±2 oC) with 68%of Relative Humidity. Percentage Weight Loss (PWL), Total Soluble Solids (TSS), Titratable Acidity (TA) and Percentage Disease Incidence (PDI) were measured at 3 days intervals. A sensory evaluation was carried out for all the treatments at the end of the storage period to evaluate the sensory attributes using a Five Point Hedonic scale. Data were analyzed using Minitab statistical package (version 16). Based on the results, fruits treated with 100% A. vera gel recorded the longest shelf life of 12 days together with higher median ranks for taste(4), firmness(3), marketability(4) and overall quality(5). Therefore, 100% Aloe vera gel coatings could be promoted among locals to extend the shelf life of papaya. 2016-01-01T00:00:00Z