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12 results for “Chlorella vulgaris”
Supp. Data for the article From raw microalgae to bioplastics: conversion of Chlorella vulgaris starch granules into thermoplastic starch
<p>Supplementaty Data (Videos) for the article From raw microalgae to bioplastics: conversion of Chlorella vulgaris starch granules into thermoplastic starch</p>
Chlorella vulgaris (UTEX 259) assembled transcripts
<p>Transcripts from <em>Chlorella vulgaris</em> (UTEX 259) assembled from Illumina RNA-Seq (150 bp paired-end reads) using Trinity.</p>
Effect of dietary Chlorella vulgaris and carbohydrate-active enzymes on the general health, immune status, antioxidant capacity, and liver lipids and metabolites of weaned piglets
<p>It was evaluated the impact of dietary inclusion of <em>Chlorella vulgaris </em>(CH) and carbohydrases on the general health, immune and oxidative status, and hepatic lipids and metabolites of piglets. Forty-four male weaned piglets were allocated into four diets: control (<em>n</em>=11), CH (control diet with 5% CH, <em>n</em>=10), CH+R (control diet with 5% CH plus 0.005% Rovabio<sup>®</sup>Excel AP, <em>n</em>=10), and CH+M (control diet with 5% CH plus 0.01% of a pre-selected four-CAZyme mixture, <em>n</em>=11) for 15 days. Total cholesterol, LDL-cholesterol and VLDL-cholesterol were increased by CH. In piglets fed CH<em>-</em>based diets, the interplay observed between IgG increase and IgM decrease contributed for piglets’ survival during weaning. <em>n</em>-6 PUFA were lower in piglets fed CH with or without feed enzymes and the inverse occurred for <em>n</em>-3 PUFA, thus benefiting <em>n</em>-6/<em>n</em>-3 ratio in the liver. The discriminant analysis applied to hepatic variables revealed a good separation between control and CH-based diets but failed to discriminate feed enzymes addition. Minor variations were promoted by Rovabio or the pre-selected enzymatic mixture, thus suggesting some improvement on microalga nutrients digestibility. Taken together, our findings indicate a health promoting effect of CH as feed ingredient in piglets’ nutrition during the weaning period, without negatively impacting on animals’ performance.</p> <p> </p>
CIDACC: Chlorella vulgaris Image Dataset for Automated Cell Counting
<p><span><span>This </span><span>CIDACC dataset</span><span> was created to </span><span>determine</span><span> the cell </span><span>population </span><span>of</span><span> Chlorella vulgaris microalga during cultivation. Chlorella vulgaris has diverse applications, including use as food supplement, </span></span><span><span>biofuel production, and pollutant removal. </span><span>High resolution</span><span> images were collected using a microscope and </span><span>annotated</span><span>,</span><span> focusing on computer vision and </span><span>machine learning </span><span>models </span><span>creation</span><span> for automatic Chlorella cell detection</span><span>, counting</span><span>,</span><span> size </span><span>and geometry </span><span>estimation</span><span>.</span></span></p> <p><span><span><span><span>The dataset </span><span>is organized </span><span>hierarchically </span><span>into multiple folders and subfolders</span><span>, </span><span>containing</span><span> 628 images taken from a microscope and further processed by </span><span>external</span><span> tools.</span> <span>It consists of three</span><span> root folders</span><span>:</span> <span>“</span><span>original_images</span><span>”</span><span>,</span> <span>“</span><span>clusters</span><span>”</span><span>,</span> <span>and </span><span>“</span><span>distinct</span><span>”</span><span>.</span> <span>The </span><span>“</span><span>original_images</span><span>” folder holds</span><span> the </span><span>raw </span><span>microscope </span><span>images </span><span>with </span><span>initial</span><span> dimensions</span><span> of </span><span>2592x1944 pixels</span><span>.</span><span> These </span><span>images </span><span>are further subdivided into </span><span>“</span><span>clusters</span><span>”</span><span> and </span><span>“</span><span>distinct</span><span>”</span><span> folders</span><span>,</span> <span>indicating</span><span> whether </span><span>they </span><span>contain</span> <span>single </span><span>cells</span> <span>or cell clusters</span><span>. The “clusters” and “distinct” </span><span>root folders </span><span>contain</span> <span>annotated </span><span>images </span><span>with reduced dimensions </span><span>(640x640 pixels)</span><span>.</span><span> The </span><span>“</span><span>clusters</span><span>”</span><span> folder </span><span>includes images showing </span></span><span><span>C</span><span>. vulgaris</span></span><span><span> cells forming clusters</span><span>, where counting individual cells is</span><span> not </span><span>possible.</span><span> The </span><span>“</span><span>distinct</span><span>”</span><span> folder </span><span>contains</span><span> images of cells that can be counted with high precision.</span></span></span></span></p>
Effects of Chlorella vulgaris on P release from ferric phosphate sediment by consecutive cultivation
Iron phosphate (Fe-P), the active compound is part of the main storage paths of phosphorus, especially in P-pollution environment. The re-release of Fe-P is a danger sign during microalgae remediation. In this work, pre-incubated Chlorella vulgaris is cultured in BG-11 culture medium with different amounts of quantifying Fe-P. The effects of Fe-P re-release on biomass, flocculation and removal of PO43- are investigated. The results indicated that Chlorella vulgaris can promote the dissolution and release of Fe-P when the pH is 7, the release amount of Fe-P (Q) in 200mL water reaches 0.055-0.45mg d-1 under the Chlorella vulgaris concentration of 5.6×105-8×105cell mL-1. Meanwhile, the growth of Chlorella vulgaris will be inhibited due to flocculation behavior of Fe3+ in the release stage, this goes hand in hand with the specific growth rate of 0.3-0.4d-1 and below 30% phosphorus removal rate. However, this process in the long run means a favorable transformation that Fe-P becomes a bioavailable phosphorus as a resource under the action of Chlorella vulgaris. Microalgae outbreaks may also be triggered by persistent interactions between Fe-P and Chlorella vulgaris. The study provides an important reference for the application of Chlorella vulgaris in a Fe-P rich environment.
Effects of Chlorella vulgaris on P release from ferric phosphate sediment by consecutive cultivation
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Preconcentration with Chlorella vulgaris combined with energy dispersive X-ray fluorescence spectrometry for rapid determination of Cd in water
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Data from: Treatment of aquaculture effluent with Chlorella vulgaris and Tetradesmus obliquus: the effect of pretreatment on microalgae growth and nutrient removal efficiency
The ongoing and increasing worldwide demand for fish has caused a steady increase in aquaculture production during the last decades. This emphasizes the importance of farming systems with a low ecological footprint, like recirculating aquaculture systems (RAS), which are an alternative to traditional open systems. Furthermore, implementing microalgae treatments in RAS, sustainable water management and low discharge of concentrated wastewater could be achieved, allowing its reuse in the system. The influence of three factors on microalgae treatment efficiency in RAS water were studied: i) microalgae species (Chlorella vulgaris, Tetradesmus obliquus), ii) water pre-treatment (sterile filtration), and iii) sampling location within the RAS (e.g. from fish tank, after UV-disinfection, etc.). To this end, fully factorial, replicated cultivations were carried out in 100-ml flasks, and nutrient removal, microalgae growth, and density of bacteria and protozoa were measured for up to 18 days. Results show that both species are able to grow in RAS water and effectively remove nutrients in it, yet their performance depended greatly on water quality. In sterile RAS water, growth and nutrient removal efficiency of C. vulgaris surpassed that of T. obliquus. In non-sterile RAS water, the pattern reversed because of grazing proto- zoa. The location of sampling within the RAS had no discernible effect on microalgae growth or nutrient removal efficiency. The results confirm that a microalgae-based technology to treat and valorise RAS water is technically feasible, yet caution that inferences made can be reversed depending on the choice of the species and the pre- treatment of the RAS water prior to cultivation.
UTILIZATION OF CHLORELLA VULGARIS IN FISH FEEDING IN FISHERY INDUSTRY
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Data from: Treatment of aquaculture effluent with Chlorella vulgaris and Tetradesmus obliquus: the effect of pretreatment on microalgae growth and nutrient removal efficiency
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Data from: Multicellular group formation in response to predators in the alga Chlorella vulgaris
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Understanding lipid metabolism in high-lipid-producing Chlorella vulgaris mutants at the genome-wide level
GEO Series GSE95708. Chlorella vulgaris. 6 samples. Type: Expression profiling by high throughput sequencing.
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