Seaweed is a popular edible source and is associated with many foods and pharmaceutical industries around the world. The current research aims to provide information on the chemical composition of 15 seaweed species, consisted of Chlorophyta, Ochrophyta/Phaeophyceae, and Rhodophyta macroalgae, collected from coastal areas of Sri Lanka. Seaweed samples were subjected to the analysis of lipids, proteins, ash and macro, micro, trace and ultra-trace elements. The highest protein content was recorded in the brown algae. Maximum dietary fiber and ash contents were recorded from green algae. The highest predominant fatty acids were observed from green seaweeds (Caulerparacemosa); however, linoleic acid (C18:2n6) is the dominant fatty acid of all macroalgae. Mineral contents were highest in the red macroalga; however, copper, zinc and magnesium were also comparatively higher in green alga Ulvalactuca. In conclusion, 15 seaweed species belonging to the three different classes of seaweeds are investigated in details to obtain their biochemical, mineral and fatty acid compositions for the synthesis of novel therapeutic agents. In order to explore biorefinery processes for these seaweeds, as well as how they can potentially be cultivated, more extensive studies are required. Studying and determining the nutritional values of seaweeds will be beneficial with the potentials for future industrial uses and research.
Chromosome length polymorphism in clinical isolates of Candida parapsilosls. APMIS 106: 941-946, 1998. Chromosome length polymorphism among 24 clinical isolates of Candida parapsilosis obtained from several human sources was analysed using pulsed-field gel electrophoresis. The isolates, from both superficial and deep infections, comprised a miscellaneous collection from the oral cavity, blood cultures, ear infections, wwnd secrete, a venous catheter and peritoneal dialysis fluid. Contour-clamped homogenous field electrophoresis using a hexagonal electrode was used for pulsed field gel electrophoresis. The chromosome numbers varied from seven to nine and their sizes ranged from 0.75 to 2.6 Mb. According to the electrophoretic karyotype patterns the 24 isolates could be divided into 9 profiles. However, the majority (18 isolates) fell into 3 groups comprising 7, 8 and 9 chromosomes, containing 5, 11, and 2 isolates, respectively. The remaining six isolates, all of which were from either an oral or another superficial site of isolation, could be categorized into a further six groups. These data confirm previous observations on the genomic heterogeneity of clinical isolates of C. parapsilosis, and illustrate the possible commonality in strains from related clinical habitats.
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