Effect of temperature and nitrogen concentration on biomass composition of Heterochlorella luteoviridis

Menegol, Tânia; Diprat, Andressa Bacalau; Rodrigues, Eliseu; Rech, Rosane

doi:10.1590/1678-457x.13417

Cited by 66 publications

(28 citation statements)

References 58 publications

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“…The fatty acid profile of VCO oil was determined as fatty acid methyl esters (FAMEs), according to the previously reported method, 22 using gas chromatography (CG Model 2010; Shimadzu, Kyoto, Japan) and capillary column (30 m • 0.25 mm, and 0.25 mm). The chromatographic conditions were previously described by Menegol et al 23…”

Section: Determination Of Fatty Acid Methyl Estersmentioning

confidence: 99%

Virgin Coconut Oil Associated with High-Fat Diet Induces Metabolic Dysfunctions, Adipose Inflammation, and Hepatic Lipid Accumulation

Ströher

Oliveira

Martinez-Oliveira

et al. 2020

Journal of Medicinal Food

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Obesity reaches an epidemic level worldwide, and this condition is associated with chronic low-grade inflammation and secondary comorbidities, largely driven by global changes in lifestyle and diet. Various dietary approaches are proposed for the obesity treatment and its associated metabolic disorders. Good taste, antioxidant functions, and vitamins have been attributed to virgin coconut oil (VCO). However, VCO contains a large amount of saturated fatty acids, and the consumption of this fat is associated with a number of secondary diseases. We evaluate the effects of VCO supplementation on biochemical, inflammatory, and oxidative stress parameters in rats fed with high-fat diet (HFD). After feeding with HFD for 12 weeks, the animals were supplemented with VCO for 30 days. HFD+VCO group increased in diet intake, weight gain, low-density lipoprotein cholesterol level, and aspartate aminotransferase (AST) and alanine aminotransferase (ALT) levels. These findings were accompanied by increased in hepatic lipid profile and fat deposition in the liver. Adipocyte hypertrophy was observed in the HFD+VCO group, which was associated with elevated expression of tumor necrosis factor alpha (TNF-a) in adipose tissue. These results revealed that VCO associated with HFD induced important metabolic alterations, adipose inflammation, and hepatic lipid accumulation in rats.

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Section: Determination Of Fatty Acid Methyl Estersmentioning

confidence: 99%

Virgin Coconut Oil Associated with High-Fat Diet Induces Metabolic Dysfunctions, Adipose Inflammation, and Hepatic Lipid Accumulation

Ströher

Oliveira

Martinez-Oliveira

et al. 2020

Journal of Medicinal Food

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“…Yang et al (2018) also observed that nitrogen-deficient conditions decreased the growth pattern for Chlamydomonas reinhardtii. Moreover, Menegol et al (2017) noticed a reduction in algal biomass of Heterochlorella luteoviridis under low nitrate concentration. However, the biomass productivity of studied strains was improved when cultured under nitrogen enrichment conditions.…”

Section: Discussionmentioning

confidence: 97%

Optimization of biomass and some metabolites productivity of Merismopedia tenuissima and Spirulina (Arthrospira) platensis grown under stress conditions

2020

ZJPAS

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The attention to using cyanobacteria as a nutrient supplement has increased due to their nutritional value and high bioactive metabolites contents. The reason behind designing such a study is to illustrate and clarify stress conditions effects like nitrogen and phosphorus supplementation and deficiency, salinity stress, and different pH values on the biomass, lipid, protein, amino acid, and carbohydrate productivities of Merismopedia tenuissima and Spirulina (Arthrospira) platensis. The obtained results revealed that an increase in sodium nitrate by 100% caused an improvement in biomass, protein, and amino acid's productivity of S. platensis and M. tenuissima by 7.02 % and 7.05, 9.2% and 47.5%, 11.8% and19.5, respectively while 100% nitrogen deficiency enhanced lipid productivity of S. platensis and M. tenuissima to 41% and 94%. Moreover, phosphorus limitation led to a reduction in biomass, protein, amino acid, and carbohydrate S. platensis to 24.3%, 21.1%, 43.3%, and 28.1%, respectively. However, phosphorus-free medium showed an increase in lipid productivity of S. platensis and M. tenuissima by 46.8% and 81.8%, respectively. The addition of 0.05 M NaCl concentration to S. platensis medium stimulates the biomass, protein, and carbohydrate productivity by 6%, 7.75%, and 18.1%, respectively, whilst, among all concentration, zero M NaCl (control) resulted in increasing biomass, protein, and amino acids, whilst, high concentration (0.3M) of NaCl enhanced lipid productivity to 125.9% and 153.5% at S. platensis and M. tenuissima, respectively. Applications of high alkalinity (pH 9) increased the productivities of all studied metabolites in S. platensis and reduction of all mention metabolites in M. tenuissima.

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“…In trial one, the average monthly temperature in the field was 18.9 to 22.8°C (Table 1) and in trial two, the temperature was 19.1-22.6°C; while in the greenhouse the temperature was 21-35.8 and 18.5-36.7°C in trial one and two respectively (Table 1). On the contrary, Menegol et al (2017) detailed that carotenes (βcarotene and lycopene) are not influenced by temperature.…”

Section: β-Carotenementioning

confidence: 97%

Effect of NPK fertilizer rates on secondary metabolites of pepino melon (Solanum muricatum Aiton)

Mutua¹,

Ogweno²,

Gesimba³

2021

J. Hortic. For.

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Secondary metabolites are bioactive compounds which are synthesized naturally in all plant parts. The quality and quantity of secondary metabolites produced by plants differ depending on the plant and environmental conditions under which they are produced. The purpose of the study was to investigate the effects of nitrogen, phosphorous and potassium (NPK) fertilizer (17:17:17) rates (0, 100, 200, 300 and 400 kg ha-1) on the production of secondary metabolites in field and greenhouse grown pepino melons (Solanum muricatum Aiton). The experimental design was randomized complete block design with five NPK fertilizer treatments replicated three times. Results indicated that an increase in NPK fertilizer rate led to an increase of carotenoids (lutein, lycopene and β-carotene) up to a maximum at 200 kg NPK ha-1 after which the contents decreased in both growing environments and trials. The control (no fertilizer application) favored the accumulation of total phenolic content (TPC) in both growing environments and trials. Greenhouse grown pepino melon fruits which were not supplied with fertilizer (control) had a TPC content of 174.3 and 145.5 mg GAE 100g-1 fresh weight (FW) in trial one and two, respectively. Fertilizers could not enhance production of TPC in pepino melon fruits and application of 200 kg NPK ha-1 is recommended for maximum accumulation of carotenoids (lycopene, lutein and βcarotene).

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Effect of temperature and nitrogen concentration on biomass composition of Heterochlorella luteoviridis

Cited by 66 publications

References 58 publications

Virgin Coconut Oil Associated with High-Fat Diet Induces Metabolic Dysfunctions, Adipose Inflammation, and Hepatic Lipid Accumulation

Virgin Coconut Oil Associated with High-Fat Diet Induces Metabolic Dysfunctions, Adipose Inflammation, and Hepatic Lipid Accumulation

Optimization of biomass and some metabolites productivity of Merismopedia tenuissima and Spirulina (Arthrospira) platensis grown under stress conditions

Effect of NPK fertilizer rates on secondary metabolites of pepino melon (Solanum muricatum Aiton)

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